S-1702 Series
www.ablicinc.com
Rev.2.2_02
© ABLIC Inc., 2008-2015
The S-1702 Series, developed based on CMOS technology, is a 150 mA output positive voltage regulator with a low
dropout voltage, a high-accuracy output voltage, and low current consumption.
The S-1702 Series includes a voltage regulator with high-accuracy output voltage of 1.0% allowing to use a ceramic
capacitor of 1.0 F or more, and a voltage detector that monitors the output/input voltage of the regulator. It also includes
an overcurrent protection circuit that prevents the output current from exceeding the current capacitance of the output
transistor and an output forcible discharge circuit for the regulator operation off.
Small SNT-6A package is available for the S-1702 Series. And an external small capacitor can be used, enabling
high-density mounting. Its super-low current consumption makes the S-1702 Series ideal for mobile devices.
Features
Regulator block
Output voltage:
Output voltage accuracy:
Current consumption:
Output current:
Built-in overcurrent protection circuit:
Built-in ON / OFF forcible discharge circuit:
Ripple rejection:
1.5 V to 5.5 V, selectable in 0.05 V step
1.0%
Current consumption of regulator block: 9 A typ., 16 A max.
Possible to output 150 mA (VIN VOUT(S) 1.0 V)*1
Limits overcurrent of output transistor.
70 dB typ. (f = 1.0 kHz)
Detector block
Detection voltage:
Built-in high-accuracy voltage detection circuit:
External reset input:
1.3 V to 5.2 V, selectable in 0.05 V step
1.0%
Monitoring output/input or monitoring external input by option
(detector output)
Forcible assertion of detector output by external reset pin
(RESX) input
Overall
Correlation temperature gradient in the regulator and the detector blocks
Current consumption:
During operation*2: 10 A typ., 18 A max.
Operation temperature range:
Ta = 40°C to 85°C
Lead-free (Sn 100%), halogen-free
*1.
*2.
Attention should be paid to the power dissipation of the package when the output current is large.
Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins
Applications
Wireless power supply circuit block for cellular phone
Power supply circuit block for health care product
Power supply circuit block for various mobile device
Package
SNT-6A
1
S-1702 Series
Rev.2.2_02
Block Diagrams
1.
S-1702 Series A type to H type
ON / OFF
VOUT
ON/OFF circuit
Reference
voltage circuit
RESX
Reset circuit
Logic
circuit
VSS
VIN
Reference
voltage
circuit
Voltage
detector
Delay
circuit
Output
circuit
A
B
C
D
E
F
G
H
VDOUT
Figure 1
2.
S-1702 Series J type and K type (external input detection type)
ON / OFF
VOUT
J
ON/OFF circuit
K
Reference
voltage circuit
SENSE
Reset circuit
Logic
circuit
VSS
VIN
Reference
voltage
circuit
Voltage
detector
Delay
circuit
Output
circuit
Figure 2
2
VDOUT
VOUT
VOUT
VOUT
VOUT
VIN
VIN
VIN
VIN
Rev.2.2_02
3.
S-1702 Series
S-1702 Series L type to N type, P type (external delay type)
ON / OFF
VOUT
L
M
N
P
ON/OFF circuit
Reference
voltage circuit
CD
Reset circuit
VOUT
VOUT
VIN
VIN
Logic
circuit
VSS
VIN
Reference
voltage
circuit
Voltage
detector
Delay
circuit
Output
circuit
VDOUT
Figure 3
3
S-1702 Series
Rev.2.2_02
Product Name Structure
1.
Product name
S-1702
x
x
x
xx
-
I6T1
U
Environmental code
U : Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications *1
I6T1: SNT-6A, tape product
Output voltage value of regulator and detection voltage value of detector *2
00 and 01 (two-digit numeric option code)
Input type of RESX and ON / OFF pins*3
A to H, J (one-digit alphabetical option code)
*4
Output type of VDOUT pin
A to H, J (one-digit alphabetical option code)
Product type*5
A to H, J to N, P (one-digit alphabetical option code)
*1.
*2.
*3.
*4.
*5.
4
Refer to the tape drawing.
Refer to Table 4 of “2. Function list according to product type”.
Refer to Table 3 of “2. Function list according to product type”.
Refer to Table 2 of “2. Function list according to product type”.
Refer to Table 1 of “2. Function list according to product type”.
Rev.2.2_02
2.
S-1702 Series
Function list according to product type
Table 1
Option
Code
A
B
C
D
E
F
G
H
J
K
L
M
N
P
ON / OFF Pin
Application
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
ON / OFF
RESX
RESX
RESX
RESX
RESX
RESX
RESX
RESX
SENSE
SENSE
CD
CD
CD
CD
Table 2
Option
Code
A
B
C
D
E
F
G
H
J
RESX Pin
Application
Product Types
Delay Type
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
External
External
External
External
Detector Monitor
Voltage
VOUT
VOUT
VOUT
VOUT
VIN
VIN
VIN
VIN
VSENSE
VSENSE
VOUT
VOUT
VIN
VIN
Discharge Shunt Function
Control by
Control by
ON / OFF Pin
RESX Pin
Output Types of VDOUT Pin
Output Type
Nch open drain output
CMOS output (VOUT drive)
CMOS output (VIN drive)
Nch open drain output
CMOS output (VOUT drive)
CMOS output (VIN drive)
Nch open drain output
CMOS output (VOUT drive)
CMOS output (VIN drive)
Hysteresis
5.0%
5.0%
5.0%
2.5%
2.5%
2.5%
None
None
None
5
S-1702 Series
Rev.2.2_02
Table 3
Option
Code
A
B
C
D
E
F
G
H
J
Table 4
RESX Pin
No pull-up/pull-down resistor
No pull-up/pull-down resistor
No pull-up/pull-down resistor
Pull-up
Pull-up
Pull-up
Pull-down
Pull-down
Pull-down
Remark
Output Voltage
3.1 V 1.0%
3.1 V 1.0%
No pull-up/pull-down resistor
Pull-up
Pull-down
No pull-up/pull-down resistor
Pull-up
Pull-down
No pull-up/pull-down resistor
Pull-up
Pull-down
Detection Voltage
2.75 V 1.0%
2.60 V 1.0%
Please contact our sales office for products with an output voltage or detection
voltage other than those specified above.
Package
Package Name
SNT-6A
6
ON / OFF Pin
Output Voltage Values of Regulator and Detection Voltage Values of Detector
Option
Code
00
01
3.
Input Types of RESX and ON / OFF Pins
Package
PG006-A-P-SD
Drawing Code
Tape
Reel
PG006-A-C-SD
PG006-A-R-SD
Land
PG006-A-L-SD
Rev.2.2_02
S-1702 Series
Pin Configuration
1.
SNT-6A
Table 5
Top view
1
2
3
6
5
4
Pin No.
1
2
Symbol
VIN
ON / OFF
RESX
Figure 4
3
CD
SENSE
4
5
6
VSS
VDOUT
VOUT
Description
Input voltage pin
ON / OFF pin
External reset pin
(S-1702Axx to Hxx)
External delay capacitor connection pin
(S-1702Lxx to Nxx, Pxx)
Detector SENSE pin
(S-1702Jxx, Kxx)
GND pin
Detector output voltage pin
Regulator output voltage pin
7
S-1702 Series
Rev.2.2_02
Absolute Maximum Ratings
Table 6
Item
(Ta = 25°C unless otherwise specified)
Absolute Maximum Rating
Unit
VSS 0.3 to VSS 7.0
V
VSS 0.3 to VIN 0.3
V
VSS 0.3 to VIN 0.3
V
VSS 0.3 to VIN 0.3
V
VSS 0.3 to VSS 7.0
V
VSS 0.3 to VIN 0.3
V
VSS 0.3 to VSS 7.0
V
VSS 0.3 to VIN 0.3
V
400*1
mW
40 to 85
°C
40 to 125
°C
Symbol
VIN
VON / OFF
VRESX
VCD
VSENSE
VOUT
Input voltage
Regulator output voltage
Nch open drain output
Detector output
VDOUT
voltage
CMOS output
Power dissipation
PD
Operation ambient temperature
Topr
Storage temperature
T stg
*1. When mounted on board
[Mounted board]
(1) Board size
: 114.3 mm 76.2 mm t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution
The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
500
400
300
200
100
0
0
50
100
150
Ambient temperature (Ta) [°C]
Figure 5
8
Power Dissipation of Package
Rev.2.2_02
S-1702 Series
Electrical Characteristics
1.
Common to series (S-1702Axx to Hxx, Jxx to Nxx, Pxx)
Table 7 (1 / 2)
Entire circuit
Item
Symbol
Current
consumption
during operation*1
ISS
(Ta = 25°C unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
Circuit
Condition
VIN = VOUT(S)
1.0 V
10
18
Min.
Typ.
Max.
A
2
Regulator block
Item
Symbol
Condition
Output voltage *2
VOUT(E)
VIN = VOUT(S)
Output current *3
IOUT
VIN > VOUT(S)
Dropout voltage
*4
Vdrop
1.0 V, IOUT = 30 mA
1.0 V
1.5 V < VOUT(S)
2.0 V < VOUT(S)
IOUT = 100 mA
2.5 V < VOUT(S)
3.0 V < VOUT(S)
3.3 V < VOUT(S)
2.0 V
2.5 V
3.0 V
3.3 V
5.5 V
VOUT(S) 0.5 V < VIN < 6.5 V,
IOUT = 30 mA
Line regulation
VOUT(S)
VOUT(S)
0.99
150*8
0.54
0.23
0.2
0.15
0.14
Unit
Test
Circuit
VOUT(S)
1.01
0.58
0.35
0.3
0.23
0.21
V
1
mA
V
V
V
V
V
3
1
1
1
1
1
0.05
0.2
%/V
1
20
40
mV
1
100
300
ppm/
°C
1
9
16
2
6.5
V
VIN
VIN = VOUT(S) 1.0 V,
10 A < IOUT < 100 mA
VIN = VOUT(S) 1.0 V,
IOUT = 30 mA,
40°C Ta
85°C*9
VIN = VOUT(S) 1.0 V,
RESX and ON / OFF pins enabled for
operation, no load
VSH1
VIN = VOUT(S)
1.0 V, RL = 1.0 k
1.2
V
4
VSL1
VIN = VOUT(S)
1.0 V, RL = 1.0 k
0.3
V
4
ON / OFF pin
input current H
ISH1
VIN = 6.5 V, VON / OFF = 6.5 V
ON / OFF pin
input current L
ISL1
VIN = 6.5 V, VON / OFF = 0 V
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
70
Load regulation
Output voltage
temperature
coefficient *5
Current
consumption
during operation*1
Input voltage
ON / OFF pin
input voltage H
ON / OFF pin
input voltage L
Ripple rejection
Short-circuit
current
VOUT2
ISS1
RR
ISHORT
S-1702xxA
S-1702xxD
S-1702xxG
S-1702xxA
S-1702xxD
S-1702xxG
VIN = VOUT(S) 1.0 V,
1.5 V VOUT(S) < 3.1 V
f = 1.0 kHz,
Vrip = 0.5 Vrms,
3.1 V VOUT(S) 5.5 V
IOUT = 30 mA
VIN = VOUT(S) 1.0 V,
ON / OFF pin enabled for operation,
VOUT = 0 V
A
2
A
A
A
A
A
A
4
4
4
4
4
4
dB
5
65
dB
5
300
mA
5
9
S-1702 Series
Rev.2.2_02
Table 7 (2 / 2)
Detector block
(Ta = 25°C unless otherwise specified)
Item
Symbol
Detection voltage*6
Condition
VDET
Min.
VDET(S)
0.99
VDET
0.035
VDET
0.01
S-1702xAx, S-1702xBx, S-1702xCx
Hysteresis width
VHYS
S-1702xDx, S-1702xEx, S-1702xFx
Input voltage
Detection voltage
temperature
*7
coefficient
1.3 V
2.3 V
VIN
VIN = VDET(S)
VIN = 5.5 V
VIN = VDET(S)
VDET(S) < 5.2 V
VIN = 5.5 V
VDET(S) < 2.3 V
Ta = 40°C to 85°C
1.5 V
1.5 V
Max.
0
0.8
2.4
2.6
2.2
2.3
VDET(S)
1.01
VDET
0.065
VDET
0.04
VDET
0.015
4.0
4.5
3.5
4.0
6.5
100
400
S-1702xGx, S-1702xHx, S-1702xJx
Current consumption
ISS2
*1
during operation
Typ.
*9
VDET(S)
VDET
0.05
VDET
0.025
*1.
Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins
*2.
VOUT(S): Set output voltage
VOUT(E): Actual output voltage
Output voltage when fixing IOUT (= 30 mA) and inputting VOUT(S)
Unit
Test
Circuit
V
6
V
6
V
6
V
6
A
A
A
A
V
2
2
2
2
ppm/
°C
6
1.0 V
*3.
The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*4.
Vdrop = VIN1 (VOUT3 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) 1.0 V and IOUT = 100 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input
voltage.
*5.
A change in the temperature of the regulator output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta
*1.
*2.
*3.
*6.
*7.
[mV/°C]*1 = VOUT(S) [V]*2
VOUT
[ppm/°C]*3 ÷ 1000
Ta VOUT
Change in temperature of output voltage
Set output voltage
Output voltage temperature coefficient
VDET(S) : Set detection voltage
VDET : Actual detection voltage
A change in the temperature of the detector detection voltage [mV/°C] is calculated using the following equation.
VDET
Ta
*1.
*2.
*3.
[mV/°C]*1 = VDET(S) (Typ.) [V]*2
VDET
Ta
VDET
[ppm/°C]*3 ÷ 1000
Change in temperature of detection voltage
Set detection voltage
Detection voltage temperature coefficient
*8.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large. This specification is guaranteed by design.
*9.
Since products are not screened at high and low temperatures, the specification for this temperature range is
guaranteed by design, not tested in production.
10
Rev.2.2_02
S-1702 Series
Table 8
Item
Symbol
L output, Nch on resistor
3.
RLOW
Condition
VDS = 0.5 V, VGS = 6.5 V
(Ta = 25°C unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
Circuit
100
3
Detector output circuit (VDOUT pin)
Table 9
Nch open drain output (S-1702xAx, xDx, xGx)
Item
Symbol
Condition
Output transistor: Nch,
VDS = 0.5 V, VDD = 1.2 V
Output transistor: Nch,
Leakage current
I LEAK
VDS = 5.5 V, VDD = 5.5 V
CMOS output (S-1702xBx, xCx, xEx, xFx, xHx, xJx)
Output current
IDOUT1
Item
Symbol
IDOUT2
Output current
IDOUT3
4.
Condition
Output transistor: Nch,
VDS = 0.5 V, VIN = 1.2 V
Output transistor: Pch,
VDS = 0.5 V, VIN = 5.5 V
(Ta = 25°C unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
Circuit
1.36
2.55
mA
7
100
nA
7
Min.
Typ.
Max.
Unit
Test
Circuit
1.36
2.55
mA
7
1.71
2.76
mA
8
RESX pin (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx)
Table 10
Item
RESX pin input voltage H
RESX pin input voltage L
Symbol
*1
VSH2
VSL2
RESX pin input current H
ISH2
RESX pin input current L
I SL2
*1.
Condition
VIN = VOUT(S)
VIN = VOUT(S)
1.0 V, RL = 1.0 k
1.0 V, RL = 1.0 k
S-1702xxA
VIN = 6.5 V, VRESX = 6.5 V S-1702xxB
S-1702xxC
S-1702xxA
VIN = 6.5 V, VRESX = 0 V S-1702xxB
S-1702xxC
(Ta = 25°C unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
Circuit
1.2
V
4
0.3
V
4
0.1
0.1
A
4
0.1
0.1
A
4
0.1
0.1
A
4
0.1
0.1
A
4
0.1
0.1
A
4
0.1
0.1
A
4
VOUT(S): set output voltage value
Table 11
Item
Pull-up / pull-down resistor
Symbol
RPULL
Condition
(Ta = 25°C unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
Circuit
2.0
M
4
11
S-1702 Series
6.
Rev.2.2_02
Response time
Table 12
Internal delay type (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx, Jxx, Kxx) (Ta = 25°C unless otherwise specified)
Item
Response time
Symbol
TPLH1
Condition
Min.
Typ.
Max.
90
Condition
Min.
Typ.
Max.
30
Unit
s
Test
Circuit
6
External delay type (S-1702Lxx, Mxx, Nxx, Pxx)
Item
Response time
12
Symbol
TPLH2
CD = 4.7 nF
Test
Circuit
ms
9
Unit
Rev.2.2_02
S-1702 Series
Test Circuits
1.
2.
The portion enclosed by dotted lines is not required
for CMOS output products.
The portion enclosed by dotted lines is not required
for CMOS output products.
Figure 6
Figure 7
3.
4.
The portion enclosed by dotted lines is not required
for CMOS output products.
The portion enclosed by dotted lines is not required
for CMOS output products.
Figure 8
Figure 9
5.
6.
The portion enclosed by dotted lines is not required
for CMOS output products.
The portion enclosed by dotted lines is not required
for CMOS output products.
Figure 10
7.
Figure 11
8.
Figure 12
Figure 13
9.
The portion enclosed by dotted lines is not required
for CMOS output products.
Figure 14
13
S-1702 Series
Rev.2.2_02
Standard Circuits
1.
S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx
Input
R*3
VR output
VD output
CIN
*1
CL
*2
GND
Single GND
*1.
*2.
*3.
CIN is a capacitor for stabilizing the input.
A ceramic capacitor of 1.0 F or more can be used for CL.
R is not required for a CMOS output product.
Figure 15
2.
S-1702Jxx, Kxx
Input
R*3
VR output
VD output
CIN
*2
CL
*1
GND
Single GND
*1.
*2.
*3.
CIN is a capacitor for stabilizing the input.
A ceramic capacitor of 1.0 F or more can be used for CL.
R is not required for a CMOS output product.
Figure 16
3.
S-1702Lxx, Mxx, Nxx, Pxx
Input
R*3
VR output
VD output
*1
CIN
CL
*2
Single GND
*1.
*2.
*3.
GND
CIN is a capacitor for stabilizing the input.
A ceramic capacitor of 1.0 F or more can be used for CL.
R is not required for a CMOS output product.
Figure 17
Caution
The above connection diagrams and constants will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constants.
14
Rev.2.2_02
S-1702 Series
Condition of Application
Input capacitor (CIN):
1.0 F or more
Output capacitor (CL):
1.0 F or more
ESR of output capacitor:
10
Caution
or less
Generally a series regulator may cause oscillation, depending on the selection of external parts.
Confirm that no oscillation occurs in the application for which the above capacitors are used.
Selection of VIN Input and VOUT Output Capacitors (CIN, CL)
The S-1702 Series requires an output capacitor (CL) between the VOUT and VSS pins for phase compensation. A
ceramic capacitor with a capacitance of 1.0 F or more provides a stable operation in all temperature ranges. When
using an OS capacitor, a tantalum capacitor, or an aluminum electrolytic capacitor, a capacitance must be 1.0 F or
more, and the ESR must be 10 or less.
The output overshoot and undershoot values, which are transient response characteristics, vary depending on the
output capacitor value. The required capacitance value for the input capacitor differs depending on the application.
The recommended application values are C IN 1.0 F and CL 1.0 F; however, perform thorough evaluation using
the actual device, including evaluation of temperature characteristics.
15
S-1702 Series
Rev.2.2_02
Explanation of Terms
1.
Regulator block
1. 1
Low dropout voltage regulator
This voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.
1. 2
Low ESR
A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1702 Series enables use of a low ESR
capacitor, such as a ceramic capacitor, for the output-side capacitor (CL). A capacitor whose ESR is 10 or less
can be used.
1. 3
Output voltage (VOUT)
The accuracy of the output voltage is ensured at 1.0% under the specified conditions of fixed input voltage *1, fixed
output current, and fixed temperature.
*1.
Differs depending on the product.
Caution
If the above conditions change, the output voltage value may vary and exceed the accuracy
range of the output voltage. Refer to “
Electrical Characteristics” and “
Characteristics
(Typical Data)” for details.
1. 4
Line regulation
VOUT 1
VIN VOUT
Indicates the dependency of the output voltage on the input voltage. That is, the values show how much the output
voltage changes due to a change in the input voltage with the output current remaining unchanged.
1. 5
Load regulation ( VOUT2)
Indicates the dependency of the output voltage on the output current. That is, the values show how much the
output voltage changes due to a change in the output current with the input voltage remaining unchanged.
1. 6
Dropout voltage (Vdrop)
Indicates the difference between input voltage (V IN1) and the output voltage when; decreasing input voltage (VIN)
gradually until the output voltage has dropped out to the value of 98% of output voltage (V OUT3), which is at VIN =
VOUT(S)
1.0 V.
Vdrop = VIN1
16
(VOUT3
0.98)
Rev.2.2_02
1. 7
S-1702 Series
Output voltage temperature coefficient
VOUT
Ta VOUT
The shaded area in Figure 18 is the range where VOUT varies in the operation temperature range when the output
voltage temperature coefficient is 100 ppm/°C
change of the output voltage [mV/°C]).
(Refer to *5 of Table 7 for how to calculate the temperature
Example of VOUT = 3.0 V typ. product
VOUT
[V]
0.30 mV/ C
*1
VOUT(E)
0.30 mV/ C
40
*1.
25
85
Ta [ C]
VOUT(E) is the value of the output voltage measured at Ta = 25 C.
Figure 18
17
S-1702 Series
2.
Rev.2.2_02
Detector block
2. 1
Detection voltage ( VDET)
The detection voltage ( VDET) is a voltage when the detector output voltage (VDOUT) switches to low. This
detection voltage varies slightly depending on products even having the same specification. The range between
the minimum ( VDET) value and the maximum ( VDET) value due to variation is called the range of detection
voltage (refer to Figure 19).
e.g. In a product with VDET = 3.0 V, the detection voltage is a value in the range of 2.97 V
( VDET)
3.03 V.
This means that some products have 2.97 V for VDET and some have 3.03 V.
VOUT
Detection voltage
( VDET) max.
Range of detection voltage
( VDET) min.
VDOUT
Remark
This is the case when the regulator output voltage (VOUT) is monitored by the detector.
Figure 19
2. 2
Detection Voltage ( VDET)
Release voltage ( VDET)
The release voltage ( VDET) is a voltage when the detector output voltage (VDOUT) switches to high. This release
voltage varies slightly depending on products even having the same specification. The range between the
minimum ( VDET) value and the maximum ( VDET) value due to variation is called the range of release voltage
(refer to Figure 20).
e.g. In a product with VDET = 3.0 V and hysteresis width of 5%, the release voltage is a value in the range of
3.074 V
( VDET)
3.227 V.
This means that some products have 3.074 V for VDET and some have 3.227 V.
VOUT
Release voltage
( VDET) max.
( VDET) min.
Range of release voltage
VDOUT
Delay time
Remark This is the case when the regulator output voltage (V OUT) is monitored by the detector.
Figure 20
18
Release Voltage ( VDET)
Rev.2.2_02
2. 3
S-1702 Series
Hysteresis width (VHYS)
The hysteresis width is the difference between the detection voltage and the release voltage. Setting the
hysteresis width prevents malfunction caused by noise on the input voltage. The hysteresis width is internally
fixed and varies depending on the product type for details, refer to “Table 2 Output Types of VDOUT Pin”.
2. 4
Delay time (tD)
The delay time (tD) is a period from the input voltage flowing to the detector block has exceeded the release
voltage ( VDET), until the detector output voltage (VDOUT) inverts.
The internal delay type products (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx, Jxx, Kxx) have delay time which
is internally fixed.
In external delay type products (S-1702Lxx, Mxx, Nxx, Pxx), the delay time (t D) can be changed by controlling the
capacitance value of the capacitor (CD) connected between the CD (RESX) and VSS pins.
For how to set the delay time (t D), refer to “3. 2 Delay circuit” in “3. Detector block” in “ Operation”.
V
VOUT
When tD = 30 ms
VDET
When tD = 90 s
VDOUT
t
tD
tD
Remark
This is the case when the regulator output voltage (VOUT) is monitored by the detector.
Figure 21
2. 5
Through-type current
This is the current that flows instantaneously when the voltage detector detects and releases a voltage.
A large through-type current flows in CMOS output products (S-1702xBx, xCx, xEx, xFx, xHx, xJx).
A small through-type current flows in Nch open drain products (S-1702xAx, xDx, xGx).
19
S-1702 Series
2. 6
Rev.2.2_02
Oscillation
In applications where a resistor is connected to the input side (Figure 22), the through-type current which is
generated when the detector output voltage (V DOUT) goes from low to high (release) causes a voltage drop equal
to Through-type current Input resistance across the resistor. When the input voltage drops below the detection
voltage as a result, the detector output voltage (VDOUT) goes from high to low. In this state, the through-type
current stops, its resultant voltage drop disappears, and the detector output voltage (V DOUT) goes from low to high.
The through-type current is then generated again, a voltage drop appears, and repeating the process finally
induces oscillation.
VIN
Ra
S-1702
VD
block
VIN
VDOUT
Rb
VSS
Figure 22 Example of Bad Implementation of Detection Voltage Changer
2. 7
Detection voltage temperature characteristics
The shaded area in Figure 23 is the range where VDET varies within the operation temperature range when the
detection voltage temperature coefficient is 100 ppm/ C (Refer to *7 of Table 7 for how to calculate the
temperature change of the detection voltage [mV/°C]).
Example of VDET = 3.0 V typ. product
VDET [V]
0.30 mV/°C
3.000
0.30 mV/°C
40
25
85
Ta [°C]
Figure 23
2. 8
Release voltage temperature characteristics
The temperature change
VDET
of the release voltage is calculated by the temperature change
Ta
VDET
Ta
of the detection voltage as follows:
VDET
Ta
VDET
VDET
VDET
Ta
The temperature changes of the release voltage and the detection voltage consequently have the same sign.
2. 9
Hysteresis voltage temperature characteristics
The temperature change of the hysteresis voltage is expressed as
V DET
Ta
20
V DET
Ta
V HYS
V DET
V DET
Ta
V DET
Ta
V DET and is calculated as follows:
Ta
Rev.2.2_02
S-1702 Series
Operation
1.
Control of S-1702 Series by using ON / OFF and RESX pins
1. 1
Starting and stopping regulator block
The regulator block can be started and stopped according to the combination of the ON / OFF and RESX pins.
The regulator block switches off the output transistor between the VIN pin and VOUT pin and reduces current
consumption significantly.
The detector block is operating during this period, so only the amount of current consumed by the detector block
flows in the S-1702 Series.
1. 2
Regulator output (VOUT) control: discharge shunt function *1
The regulator output (VOUT) can be controlled by combining the ON / OFF and RESX pins.
In the product types having a discharge shunt circuit *1 (Axx, Bxx, Cxx, Exx, Fxx, Gxx, Jxx, Lxx, Nxx), this circuit
forcibly sets the regulator output (VOUT ) the VSS level*1.
In the product types that do not have a discharge shunt circuit*1 (Dxx, Hxx, Kxx, Mxx, Pxx), the regulator output
(VOUT) is set at the VSS level by a division resistor of several M between the VOUT pin and VSS pin.
*1. For details of a discharge shunt circuit, refer to “2. 2. 2
Block”.
1. 3
Discharge shunt function” in “2.
Regulator
Detector output voltage (VDOUT) control: forcible assertion function
The detector output voltage (VDOUT) is forcibly asserted to the VSS level by combining the ON / OFF and RESX
pins.
When the forcible assertion function is not being used, the result of detection by the detector (release status: H,
detection status: L) is output from the VDOUT pin.
21
S-1702 Series
1. 4
Rev.2.2_02
Operation of each function according to ON / OFF and RESX pins
The following shows the operation of each function according to the combination of the ON / OFF and RESX pin.
Table 13
S-1702Axx, Exx
ON / OFF Pin
RESX Pin
L
L
H
H
L
H
L
H
Regulator Block
Stops
Stops
Stops
Starts
Regulator Output
(VOUT)
Forcibly discharged
Forcibly discharged
Forcibly discharged
Set value
Detector Output
(VDOUT)
VSS potential
VSS potential
VSS potential
H or L
Regulator Output
(VOUT)
Forcibly discharged
Forcibly discharged
Set value
Set value
Detector Output
(VDOUT)
VSS potential
VSS potential
VSS potential
H or L
Regulator Output
(VOUT)
Forcibly discharged
Not forcibly
discharged
Forcibly discharged
Set value
Detector Output
(VDOUT)
VSS potential
S-1702Bxx, Fxx
ON / OFF Pin
RESX Pin
L
L
H
H
L
H
L
H
Regulator Block
Stops
Stops
Starts
Starts
S-1702Cxx, Gxx
ON / OFF Pin
RESX Pin
Regulator Block
L
L
Stops
L
H
Stops
H
H
L
H
Stops
Starts
H or L
VSS potential
H or L
S-1702Dxx, Hxx
ON / OFF Pin
RESX Pin
Regulator Block
L
L
Stops
L
H
Stops
Regulator Output
(VOUT)
Not forcibly
discharged
Not forcibly
discharged
Detector Output
(VDOUT)
VSS potential
H or L
H
L
Starts
Set value
VSS potential
H
H
Starts
Set value
H or L
Regulator Output
(VOUT )
Forcibly discharged
Set value
Detector Output
(VDOUT)
VSS potential
H or L
S-1702Jxx, Lxx, Nxx
ON / OFF Pin
L
H
Regulator Block
Stops
Starts
S-1702Kxx, Mxx, Pxx
ON / OFF Pin
22
Regulator Block
L
Stops
H
Starts
Regulator Output
(VOUT)
Not forcibly
discharged
Set value
Detector Output
(VDOUT)
H or L
H or L
Rev.2.2_02
1. 5
S-1702 Series
Equivalent circuits of ON / OFF and RESX pins
The ON / OFF and RESX pins are internally fixed to any one of three states; pulled-up (via a pull-up resistor),
pulled-down (via a pull-down resistor), or neither pulled-up nor pulled-down (no down pull-up / pull-down resistor).
For details, refer to Table 3 Input Types of RESX and ON / OFF Pins. The equivalent circuits are shown
below.
VIN VIN
VIN
ON / OFF
or
RESX
VIN
ON / OFF
or
RESX
VSS
VSS
With pull-up resistor
Figure 24
Caution
VIN
VIN
VIN
VSS
VSS
ON / OFF
or
RESX
VSS VSS
VSS
With pull-down resistor
Without pull-up / pull-down resistor
Equivalent Circuits of ON / OFF and RESX Pins
In product without pull-up / pull-down resistor, do not use the ON / OFF and RESX pins in a floating
status.
Note that applying voltage of 0.3 V to 1.2 V may increase current consumption.
23
S-1702 Series
2.
Rev.2.2_02
Regulator block
2. 1
Basic operation
Figure 25 shows a block diagram of the regulator block.
The error amplifier compares the reference voltage (V ref) with feedback voltage (Vfb), which is the output voltage
resistance-divided by feedback resistors (Rs and Rf). It supplies the gate voltage necessary to maintain the
constant output voltage which is not influenced by the input voltage and temperature change, to the output
transistor.
The regulator output voltage (VOUT) of the S-1702 Series can be selected from a value between 1.5 V and 5.5 V.
Output circuit
VIN
VIN
Output transistor
*1
Current
supply
Error amplifier
VOUT
VOUT
Vref
Rf
Discharge
shunt
circuit
Vfb
Rs
VSS
VSS
*1. Parasitic diode
Figure 25
2. 2
Output circuit
The output circuit of the regulator block consists of an output transistor and a discharge shunt circuit.
The discharge shunt function is enabled or disabled for the VOUT pin. Refer to “Table 1 Product Types” for
details. The equivalent circuits are shown below.
VIN
VIN
*1
*1
VOUT
VOUT
Vfb
Rf
Rf
Vfb
Rs
Rs
VSS
VSS VSS
Discharge shunt function: enabled
VSS VSS
VSS VSS
Discharge shunt function: disabled
*1. Parasitic diode
Figure 26 Equivalent Circuits of VOUT Pin
24
VOUT
VOUT
Rev.2.2_02
2. 2. 1
S-1702 Series
Output transistor
The S-1702 Series regulator block uses a low on-resistance Pch MOS FET transistor as the output transistor.
Caution Be sure that VOUT does not exceed VIN 0.3 V to prevent the voltage regulator from being
damaged due to inverse current flowing from the VOUT pin through a parasitic diode to the
VIN pin, when the potential of VOUT became higher than VIN.
2. 2. 2
Discharge shunt function
The discharge shunt function is enabled in the S-1702Axx, Bxx, Cxx, Exx, Fxx, Gxx, Jxx, Lxx, and Nxx.
When the regulator block is stopped, the output transistor is turned off and the discharge shunt circuit is
turned on according to the combination of the ON / OFF and the RESX pins.
This operation causes the charge in the output capacitor (CL) to be discharged, and forcibly sets the VOUT
pin the VSS level.
The VOUT pin is set at the VSS level in a shorter time than the S-1702Dxx, Hxx, Kxx, Mxx, and Pxx, because
they disable the discharge shunt function.
S-1702 Series
Output transistor: OFF
*1
VIN
VOUT
VIN
Vref
VOUT
Current flow
Rf
Reference
voltage
circuit
ON / OFF
Vfb
Rs
ON
ON / OFF
circuit
Logic
circuit
RESX
CL
*1
Output capacitor
Reset circuit
VSS
GND
*1. Parasitic diode
Figure 27
Discharge Shunt Function
25
S-1702 Series
3.
Rev.2.2_02
Detector block
3. 1
Basic operation
Figure 28 shows a block diagram of the detector block.
SENSE
VIN
VSENSE
VIN
Current
supply
Ra
Vref
Delay
circuit
VDOUT Output
circuit
VDOUT
Rb
N1
Rc
CD
VSS
CD
VSS
VSS
Figure 28
(1)
(2)
(3)
When the SENSE voltage (VSENSE) is the release voltage ( VDET) or more, the VDOUT pin outputs H.
((1) in Figure 29)
In this case, the transistor (N1) is off and the input voltage to the comparator is (Rb Rc) VSENSE .
Ra Rb Rc
Although the SENSE voltage (VSENSE) drops to the release voltage ( VDET) or less, the VDOUT pin outputs
H when the SENSE voltage (VSENSE) is the detection voltage ( VDET) or more.
If the SENSE voltage (VSENSE) is the detection voltage ( VDET) or less (refer to point A in Figure 29), the
VDOUT pin outputs L ((2) in Figure 29).
The transistor (N1) is turned on and the input voltage to the comparator is Rb VSENSE .
Ra Rb
If the VIN input voltage (VIN) further drops to the lowest operating voltage of the S-1702 Series, the VDOUT
pin is sets in high impedance.
If the VDOUT pin is pulled up to the regulator output voltage (V OUT), the VDOUT pin outputs VOUT (H) ((3)
in Figure 29).
(4)
If the VIN input voltage (VIN) rises to the lowest operating voltage or more, the VDOUT pin outputs L.
Although the SENSE voltage (VSENSE ) excceds the detection voltage ( VDET), it is the release voltage
( VDET) or less, the VDOUT pin outputs L ((4) in Figure 29).
(5)
If the SENSE voltage (VSENSE) rises to the release voltage ( VDET) or more (see point B in Figure 29), the
VDOUT pin outputs H. The VDOUT pin outputs H after it is delayed for tD by the delay circuit ((5) in
Figure 29).
In the S-1702 Series, the detection voltage (VDOUT) can be set within the range of 1.3 V to 5.2 V (operating voltage
range: VIN = 0.8 V to 6.5 V).
26
Rev.2.2_02
S-1702 Series
(2)
(1)
(3)
(4)
(5)
VDD
B
Hysteresis width (VHYS)
Release voltage ( VDET)
A
Detection voltage (V DET)
*1
VSENSE (VIN)
Lowest operating voltage
VSS
VDOUT
VSS
*1.
tD
When the SENSE pin is connected to the VIN pin.
Figure 29
3. 1. 1
Operation
Regulator output voltage (VOUT) detection types (S-1702Axx, Bxx, Cxx, Dxx, Lxx, Mxx)
Each detector block of S-1702Axx, Bxx, Cxx, Dxx, Lxx, and Mxx detects the regulator output voltage (V OUT).
VOUT
VIN
VIN
Current
supply
Ra
Vref
Delay
circuit
VDOUT Output
circuit
VDOUT
Rb
N1
Rc
CD
*1
VSS
CD
VSS
VSS
*1. S-1702Lxx and S-1702Mxx only
Figure 30
Block Diagram (Regulator Output Voltage (VOUT) Detection Type)
Caution If the input voltage or load current changes transiently, undershoot or overshoot occurs in
the regulator output voltage (VOUT). In the product types that the regulator output voltage is
detected by the detector, if the output voltage reaches the detection voltage or less due to
undershoot, the detector operates so that a reset signal may be output. To prevent this, set
the value of the capacitor so that the value of undershoot is the minimum, or set the voltage
range in which the difference of the output voltage and the detection voltage is undershoot
or more.
27
S-1702 Series
3. 1. 2
Rev.2.2_02
Input voltage (VIN) detection types (S-1702Exx, Fxx, Gxx, Hxx, Nxx, Pxx)
Each detector block of S-1702Exx, Fxx, Gxx, Hxx, Nxx, and Pxx detects the input voltage (VIN).
VIN
VIN
Current
supply
Ra
Vref
Delay
circuit
VDOUT Output
circuit
VDOUT
Rb
N1
Rc
CD
*1
VSS
CD
VSS
VSS
*1. S-1702Nxx and S-1702Pxx only
Figure 31 Block Diagram (Input Voltage (V IN) Detection Type)
3. 1. 3
SENSE voltage (VSENSE) detection types (S-1702Jxx, Kxx)
Each detector block of S-1702Jxx and Kxx detects the SENSE voltage (VSENSE).
VSENSE
SENSE
VIN
VIN
Current
supply
Ra
Vref
Delay
circuit
VDOUT Output
circuit
VDOUT
Rb
N1
Rc
VSS
VSS
Figure 32
Block Diagram (SENSE Voltage (VSENSE) Detection Type)
Caution Use the SENSE pin as an input pin when detecting the external power supply voltage. If
applying an input voltage (VIN) while a potential is being applied to the SENSE pin, an error
occurs in the release voltage of the detector. Apply a voltage to the SENSE pin after applying
the input voltage (VIN).
28
Rev.2.2_02
3. 2
S-1702 Series
Delay circuit
3. 2. 1
Internal delay types (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx, Jxx, Kxx)
In the internal delay types, when VSENSE is turned on, the delay circuit makes a certain delay, after the point
when VSENSE has reached the release voltage ( VDET), and sets the VDOUT pin to output an output signal
(refer to point B in Figure 29). The delay circuit does not make delay when V SENSE is the detection voltage
( VDET) or less (refer to point A in Figure 29).
The delay time (tD) is fixed in the internal circuit of internal delay types.
3. 2. 2
External delay types (S-1702Lxx, Mxx, Nxx, Pxx)
In the external delay types, the delay time of the detection signal can be set by connecting a capacitor (C D)
between the CD and VSS pins.
The delay time (tD) is determined according to the built-in constant current, approx. 100 nA (typ.), and the time
constant of the external capacitor (CD), and can be calculated by the following equation.
tD [ms] = Delay constant
CD [nF]
The delay constant (Ta = 25°C) is as follows.
Delay constant: 5.3 (min.), 6.3 (typ.), 7.3 (max.)
Figure 33 shows the equivalent circuit of the CD pin (external delay type).
VIN
VIN
CD
CD
VSS
VSS
VSS
Figure 33 Equivalent Circuit of CD Pin (External Delay Type)
Caution 1.
Design the board so that a current will not flow into or flow out from the CD (RESX) pin,
because this pin’s impedance is high. (Otherwise that may provide incorrect delay time.)
2.
There is no limit for the capacitance of the external capacitor (C D) as long as the leakage
current of the capacitor can be ignored against the built-in constant current value.
Leakage current causes deviation in delay time. When the leakage current is the built-in
constant current or more, the IC does not release.
29
S-1702 Series
3. 3
Rev.2.2_02
Output Circuit
Either Nch open drain output, CMOS output (VOUT drive), or CMOS output (VIN drive) is used for the VDOUT pin.
For details, refer to “Table 2 Output Types of VDOUT Pin”. The equivalent circuits are shown below.
VOUT
VIN
*1
VDOUT
VDOUT
*1
VDOUT
VDOUT
VSS VSS
Nch open drain output
*1.
VDOUT
VDOUT
VSS VSS
CMOS output (VOUT drive)
Parasitic diode
Figure 34 Equivalent Circuits of VDOUT Pin
30
VSS VSS
CMOS output (VIN drive)
Rev.2.2_02
4.
S-1702 Series
Relation of temperature coefficients of detector and regulator blocks
The S-1702 Series has a detector and a regulator in it, and each reference voltage circuit has the same structure so
that both temperature coefficients of detector detection voltage and regulator output interlock.
4. 1
Positive temperature coefficient of regulator output
If the temperature coefficient of regulator output is positive, so is that of detector detection voltage (Figure 35).
VDET [V]
40
25
85
Ta [°C]
Figure 35
4. 2
Relation of Temperature Coefficients of Detector and Regulator (When They Are Positive)
Negative temperature coefficient of regulator output
If the temperature coefficient of regulator output is negative, so is that of detector detection voltage (Figure 36).
VDET [V]
40
25
85
Ta [°C]
Figure 36
Relation of Temperature Coefficients of Detector and Regulator (When They Are Negative)
31
S-1702 Series
Rev.2.2_02
Precautions
Wiring patterns for the VIN pin, VOUT pin and GND should be designed so that the impedance is low. When
mounting an output capacitor between the VOUT pin and the VSS pin (C L) and a capacitor for stabilizing the input
between the VIN pin and the VSS pin (CIN), the distance from the capacitors to these pins should be as short as
possible.
Note that gernerally the output voltage may increase when a series regulator is used at low load current (1.0 mA
or less).
Generally a series regulator may cause oscillation, depending on the selection of external parts. The following
conditions are recommended for the S-1702 Series. However, be sure to perform sufficient evaluation under the
actual usage conditions for selection, including evaluation of temperature characteristics.
Input capacitor (CIN):
Output capacitor (CL):
Equivalent series resistance (ESR):
1.0 F or more
1.0 F or more
10 or less
The voltage regulator may oscillate when the impedance of the power supply is high and the input capacitance is
small or an input capacitor is not connected.
Overshoot may occur in the output voltage momentarily if the voltage is rapidly raised at power-on or when the
power supply fluctuates. Sufficiently evaluate the output voltage at power-on with the actual device.
The application conditions for the input voltage, the output voltage, and the load current should not exceed the
package power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
In determining the output current, attention should be paid to the output current value specified in Table 7 in “
Electrical Characteristics” and footnote *8 of the table.
ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by
products including this IC of patents owned by a third party.
32
Rev.2.2_02
S-1702 Series
Characteristics (Typical Data)
1.
Entire circuit
Current consumption during operation*1 vs. Input voltage (Ta = 25°C)
VOUT = 1.5 V
VOUT = 3.1 V
12
12
10
10
8
8
6
6
Ta = 85C
Ta = 25C
Ta = n40C
4
2
4
Ta = 85C
Ta = 25C
Ta = n40C
2
0
0
0
1
2
3
4
VIN [V]
5
6
7
0
1
2
3
4
VIN [V]
5
6
7
VOUT = 5.5 V
12
10
8
6
4
Ta = 85C
Ta = 25C
Ta = n40C
2
0
0
*1.
1
2
3
4
VIN [V]
5
6
7
Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins
33
S-1702 Series
2.
Rev.2.2_02
Regulator block
2. 1
Output voltage vs. Output current (when load current increases) (Ta = 25°C)
VOUT = 1.5 V
VOUT = 3.1 V
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
VIN = 3.4 V
VIN = 4.0 V
VIN = 5.0 V
VIN = 6.5 V
0
50 100 150 200 250 300 350 400 450
IOUT [mA]
VOUT = 5.5 V
Remark In determining the output current,
attention should be paid to the followings.
(1) The minimum output current value and
footnote *8 in Table 7 in Electrical
Characteristics.
(2) Power dissipation of package
6
5
VIN = 5.8 V
VIN = 6.0 V
VIN = 6.5 V
4
3
2
1
0
2. 2
0
50 100 150 200 250 300 350 400 450
IOUT [mA]
Output voltage vs. Input voltage (Ta = 25°C)
VOUT = 1.5 V
1.6
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
1.5
1.4
IOUT = n1 mA
IOUT = n30 mA
IOUT = n100 mA
1.3
1.2
1.1
1.0
1.0
1.5
2.0
2.5
VIN [V]
3.0
3.5
VOUT = 5.5 V
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
IOUT = n1 mA
IOUT = n30 mA
IOUT = n100 mA
4.5
34
5.0
5.5
VIN [V]
VOUT = 3.1 V
6.0
6.5
IOUT = n1 mA
IOUT = n30 mA
IOUT = n100 mA
2.5
3.0
3.4
4.0
VIN [V]
4.5
5.0
Rev.2.2_02
2. 3
S-1702 Series
Dropout voltage vs. Output current
VOUT = 1.5 V
VOUT = 3.1 V
0.5
0.30
0.4
0.25
0.20
0.3
0.15
0.2
Ta = 85C
Ta = 25C
Ta = n40C
0.1
0
0
25
50
100
75
IOUT [mA]
125
0.10
Ta = 85C
Ta = 25C
Ta = n40C
0.05
0
0
150
25
50
100
75
IOUT [mA]
125
150
VOUT = 5.5 V
0.25
0.20
0.15
0.10
Ta = 85C
Ta = 25C
Ta = n40C
0.05
0
0
2. 4
25
50
100
75
IOUT [mA]
125
150
Output voltage vs. Ambient temperature
VOUT = 1.5 V
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
VOUT = 3.1 V
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
2.90
n40 n25
0
25
Ta [C]
50
75 85
n40 n25
0
25
Ta [C]
50
75 85
VOUT = 5.5 V
5.70
5.65
5.60
5.55
5.50
5.45
5.40
5.35
5.30
n40 n25
0
25
Ta [C]
50
75 85
35
S-1702 Series
2. 5
Rev.2.2_02
Current consumption during operation at regulator block*1 vs. Input voltage
VOUT = 1.5 V
VOUT = 3.1 V
10
10
8
8
6
6
4
4
Ta = 85C
Ta = 25C
Ta = n40C
2
0
0
1
2
Ta = 85C
Ta = 25C
Ta = n40C
2
0
3
4
VIN [V]
5
6
1
0
7
2
3
4
VIN [V]
5
6
7
VOUT = 5.5 V
10
8
6
4
Ta = 85C
Ta = 25C
Ta = n40C
2
0
0
*1.
2. 6
1
2
3
4
VIN [V]
5
6
7
Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins
Ripple rejection ratio (Ta = 25°C)
VOUT = 1.5 V, VIN = 2.5 V, CL = 1.0 F
VOUT = 3.1 V, VIN = 4.1 V, CL = 1.0 F
100
100
80
80
60
60
40
40
IOUT = 1 mA
IOUT = 30 mA
IOUT = 150 mA
20
0
10
100
1k
10k
Frequency [Hz]
0
100k
1M
VOUT = 5.5 V, VIN = 6.0 V, CL = 1.0 F
100
80
60
40
IOUT = 1 mA
IOUT = 30 mA
IOUT = 150 mA
20
0
10
36
100
1k
10k
Frequency [Hz]
IOUT = 1 mA
IOUT = 30 mA
IOUT = 150 mA
20
100k
1M
10
100
1k
10k
Frequency [Hz]
100k
1M
Rev.2.2_02
3.
S-1702 Series
Detector block
3. 1
Detection voltage vs. Ambient temperature
VDET = 1.3 V
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
VDET = 2.75 V
3.0
2.9
VDET
VDET
2.8
nVDET
nVDET
2.7
2.6
2.5
2.4
n40 n25
0
25
Ta [C]
50
75 85
n40 n25
0
25
Ta [C]
50
75 85
VDET = 5.2 V
5.5
5.4
VDET
5.3
5.2
5.1
nVDET
5.0
n40 n25
3. 2
0
25
Ta [C]
50
75 85
Hysteresis width vs. Ambient temperature
VDET = 1.3 V
VDET = 2.75 V
6
6
5
5
4
4
3
3
2
2
1
1
0
0
n40 n25
0
25
Ta [C]
50
75 85
n40 n25
0
25
Ta [C]
50
75 85
VDET = 5.2 V
6
5
4
3
2
1
0
n40 n25
0
25
Ta [C]
50
75 85
37
S-1702 Series
3. 3
Rev.2.2_02
Current consumption during operation at detector block*1 vs. Input voltage
VDET = 1.3 V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
VDET = 2.75 V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Ta = 85C
Ta = 25C
Ta = n40C
0
1
2
5
3
4
VIN [V]
6 6.5
Ta = 85C
Ta = 25C
Ta = n40C
0
2
1
5
3
4
VIN [V]
6 6.5
VDET = 5.2 V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Ta = 85C
Ta = 25C
Ta = n40C
0
*1.
3. 4
1
2
3
4
VIN [V]
5
Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins
Detector output voltage vs. Nch transistor
characteristics (ID vs. VDS characteristics)
30
15
2
3
VDS [V]
VIN = 1.5 V
0
4
5
6
0
1
2
3
VDS [V]
4
5
6
Detector output voltage vs. Input voltage
CMOS output
Nch open drain output
6
0.6
5
0.5
4
0.4
Ta = 85C
Ta = 25C
Ta = n40C
3
2
0.3
Ta = 85C
Ta = 25C
Ta = n40C
0.2
1
0.1
0
0
0
38
VIN = 2.0 V
5
VIN = 1.3 V
1
VIN = 3.0 V
10
VIN = 2.0 V
0
VIN = 4.0 V
15
VIN = 3.0 V
0
VIN = 5.0 V
20
VIN = 4.0 V
5
Detector output voltage vs. Pch transistor
characteristics (ID vs. VDS characteristics)
25
20
10
3. 5
30
VIN = 5.0 V
25
3. 6
6 6.5
0.2
0.4
0.6 0.8
VIN [V]
1.0
1.2
1.4
0
0.2
0.4
0.6 0.8
VIN [V]
1.0
1.2
1.4
Rev.2.2_02
S-1702 Series
Reference Data
1.
Input transient response characteristics (Ta = 25°C)
IOUT = 30 mA, tr = tf = 5.0 s, CL = 1.0 F, CIN = 1.0 F
3.5 V
VOUT = 1.5 V, VIN = 2.5 V
IOUT = 30 mA, t r = tf = 5.0 s, CL = 1.0 F, CIN = 1.0 F
5.1 V
VOUT = 3.1 V, VIN = 4.1 V
1.60
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
t [s]
2.
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
t [s]
Load transient response characteristics (Ta = 25°C)
VIN = 2.5 V, CL = 1.0 F, CIN = 1.0 F
VOUT = 1.5 V, IOUT = 50 mA
100 mA
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
VIN = 4.0 V, CL = 1.0 F, CIN = 1.0 F
VOUT = 3.1 V, IOUT = 50 mA
100 mA
150
100
50
0
n50
n100
n150
n200
t [s]
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
150
100
50
0
n50
n100
n150
n200
t [s]
VIN = 6.0 V, CL = 1.0 F, CIN = 1.0 F
VOUT = 5.5 V, IOUT = 50 mA
100 mA
6.40
6.20
6.00
5.80
5.60
5.40
5.20
5.00
150
100
50
0
n50
n100
n150
n200
t [s]
39
S-1702 Series
3.
Rev.2.2_02
ON/OFF pin transient response characteristics (Ta = 25°C)
VIN = 2.5 V, CL = 1.0 F, CIN = 1.0 F, IOUT = 100 mA
VOUT = 1.5 V, VON / OFF = 0 V
2.5 V
5.0
3.0
10.0
6.0
4.0
2.0
8.0
4.0
3.0
1.0
6.0
2.0
2.0
0
4.0
0
1.0
n1.0
2.0
n2.0
0
n2.0
0
n4.0
n1.0
n3.0
n2.0
n100
0
100
200
t [s]
300
400
500
n100
VIN = 6.0 V, CL = 1.0 F, CIN = 1.0 F, IOUT = 100 mA
VOUT = 5.5 V, VON / OFF = 0 V
6.5 V
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0
n2.0
n100
40
VIN = 4.0 V, CL = 1.0 F, CIN = 1.0 F, IOUT = 100 mA
VOUT = 3.1 V, VON / OFF = 0 V
4.0 V
0
100
200
t [s]
300
400
500
8.0
6.0
4.0
2.0
0
n2.0
n4.0
n6.0
n8.0
0
100
200 300
t [s]
400
500
n6.0
Disclaimers (Handling Precautions)
1.
All the information described herein (product data, specifications, figures, tables, programs, algorithms and application
circuit examples, etc.) is current as of publishing date of this document and is subject to change without notice.
2.
The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not responsible for damages caused by the reasons other than the products described herein
(hereinafter "the products") or infringement of third-party intellectual property right and any other right due to the use
of the information described herein.
3.
ABLIC Inc. is not responsible for damages caused by the incorrect information described herein.
4.
Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings,
operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the
products outside their specified ranges.
5.
When using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6.
When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7.
The products must not be used or provided (exported) for the purposes of the development of weapons of mass
destruction or military use. ABLIC Inc. is not responsible for any provision (export) to those whose purpose is to
develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use.
8.
The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses. Do
not apply the products to the above listed devices and equipments without prior written permission by ABLIC Inc.
Especially, the products cannot be used for life support devices, devices implanted in the human body and devices
that directly affect human life, etc.
Prior consultation with our sales office is required when considering the above uses.
ABLIC Inc. is not responsible for damages caused by unauthorized or unspecified use of our products.
9.
Semiconductor products may fail or malfunction with some probability.
The user of the products should therefore take responsibility to give thorough consideration to safety design including
redundancy, fire spread prevention measures, and malfunction prevention to prevent accidents causing injury or
death, fires and social damage, etc. that may ensue from the products' failure or malfunction.
The entire system must be sufficiently evaluated and applied on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc.
The information described herein does not convey any license under any intellectual property rights or any other
rights belonging to ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any
part of this document described herein for the purpose of disclosing it to a third-party without the express permission
of ABLIC Inc. is strictly prohibited.
14. For more details on the information described herein, contact our sales office.
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