NCV8769
Ultra Low Iq 150 mA LDO
Regulator with Reset and
Early Warning
The NCV8769 is 150 mA LDO regulator with integrated reset and
early warning functions dedicated for microprocessor applications. Its
robustness allows NCV8769 to be used in severe automotive
environments. Ultra low quiescent current as low as 25 mA typical for
NCV8769 makes it suitable for applications permanently connected to
battery requiring ultra low quiescent current with or without load. The
NCV8769 contains protection functions as current limit, thermal
shutdown and reverse output current protection.
Features
•
•
•
•
•
•
•
•
•
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MARKING
DIAGRAMS
14
14
1
Output Voltage Options: 5 V
Output Voltage Accuracy: $2%
Output Current up to 150 mA
Ultra Low Quiescent Current:
− typ 25 mA for Adjustable Early Warning Threshold Option
Very Low Dropout Voltage
Microprocessor Compatible Control Functions:
− Reset with Adjustable Power−on Delay
− Early Warning
Wide Input Voltage Operation Range: up to 40 V
Protection Features:
− Current Limitation
− Thermal Shutdown
These are Pb−Free Devices
Y
Z
XX
A
WL
Y
WW
G
SO−14
D SUFFIX
CASE 751A
V8769YZXXG
AWLYWWG
1
= Timing and Reset Threshold Option*
= Early Warning Option*
= Voltage Option
5.0 V (XX = 50)
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
*See Application Information Section.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
Typical Applications
•
•
•
•
Body Control Module
Instruments and Clusters
Occupant Protection and Comfort
Powertrain
VBAT
Cin
0.1 mF
RSI2
RSI1
Vout
Vin
SI
NCV8769y0
VDD
Cout
1 mF
Microprocessor
DT
GND
SO
I/O
RO
RESET
Figure 1. Application Circuit
© Semiconductor Components Industries, LLC, 2011
June, 2011 − Rev. 1
1
Publication Order Number:
NCV8769/D
NCV8769
Vin
Vout
**
**
Driver with
Current
Limit
RO
Thermal
Shutdown
Vref
TIMING
CIRCUIT
and
RESET
OUTPUT
DRIVER
and
SENSE
OUTPUT
DRIVER
SO
SI
DT
V ref
*
GND
*Pull−down Resistor (~150 kW) active only in Reset State.
** 5 V option only.
Figure 2. Simplified Block Diagram
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2
NCV8769
NC
1
14
SI
Vin
DT
GND
GND
GND
GND
GND
GND
GND
Vout
SO
RO
SO−14
Figure 3. Pin Connections
(Top View)
PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
1
NC
Not connected
Description
2
DT
Reset Delay Time Select. Short to GND or connect to Vout to select time.
3, 4, 5, 6,
10, 11, 12
GND
7
RO
Reset Output. 30 kW internal Pull−Up resistor connected to Vout. RO goes Low when Vout drops by more
than 7% (typ.) from its nominal value.
8
SO
Early Warning Output. 30 kW internal Pull−Up resistor connected to Vout. It can be used to provide early
warning of an impending reset condition. Leave open if not used.
9
Vout
Regulated Output Voltage. Connect 1 mF capacitor with ESR < 100 W to ground.
13
Vin
Positive Power Supply Input. Connect 0.1 mF capacitor to ground.
14
SI
Sense Input; If not used, connect to Vout. See Electrical Characteristics Table and Application Information
sections for more information.
Power Supply Ground.
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NCV8769
ABSOLUTE MAXIMUM RATINGS
Symbol
Min
Max
Unit
Input Voltage DC (Note 1)
Rating
Vin
−0.3
40
V
Input Voltage Transient (Note 1)
Vin
−
45
V
Input Current
Iin
−5
−
mA
Output Voltage (Note 2)
Vout
−0.3
5.5
V
Output Current
Iout
−3
Current
Limited
mA
DT (Reset Delay Time Select) Voltage
VDT
−0.3
5.5
V
DT (Reset Delay Time Select) Current
IDT
−1
1
mA
Reset Output Voltage
VRO
−0.3
5.5
V
Reset Output Current
IRO
−3
3
mA
Sense Input Voltage DC
VSI
−0.3
40
V
Sense Input Voltage Transient
VSI
−
45
V
Sense Input Current
ISI
−1
1
mA
Sense Output Voltage
VSO
−0.3
5.5
V
Sense Output Current
ISO
−3
3
mA
TJ(max)
−40
150
°C
TSTG
−55
150
°C
ESD Capability, Human Body Model (Note 3)
ESDHBM
−2
2
kV
ESD Capability, Machine Model (Note 3)
ESDMM
−200
200
V
TSLD
−
265 peak
°C
Maximum Junction Temperature
Storage Temperature
Lead Temperature Soldering
Reflow (SMD Styles Only) (Note 4)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. 5.5 or (Vin + 0.3 V), whichever is lower
3. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
4. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
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NCV8769
THERMAL CHARACTERISTICS
Rating
Symbol
Thermal Characteristics, SO−14 (Note 5)
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Pin4 (Note 6)
Value
Unit
°C/W
94
18
RθJA
YψJP4
5. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
6. Values based on copper area of 645 mm2 (or 1 in2) of 1 oz copper thickness and FR4 PCB substrate.
OPERATING RANGES (Note 7)
Rating
Symbol
Min
Max
Unit
Input Voltage (Note 8)
Vin
5.5
40
V
Junction Temperature
TJ
−40
150
°C
7. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
8. Minimum Vin = 5.5 V or (Vout + VDO), whichever is higher.
ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VDT = GND, VSI = Vout, RSI1 & RSI2 not used, Cin = 0.1 mF, Cout = 1 mF, for typical
values TJ = 25°C, for min/max values TJ = −40 °C to 150°C; unless otherwise noted. (Notes 9 and 10)
Test Conditions
Parameter
Symbol
Min
Typ
Max
Unit
4.9
4.9
(−2 %)
5.0
5.0
5.1
5.1
(+2%)
V
4.9
(−2 %)
5.0
5.1
(+2%)
REGULATOR OUTPUT
Output Voltage (Accuracy %)
Vin = 5.6 V to 40 V, Iout = 0.1 mA to 100 mA
Vin = 5.8 V to 16 V, Iout = 0.1 mA to 150 mA
Vout
Output Voltage (Accuracy %)
TJ = −40°C to 125°C
Vin = 5.8 V to 28 V, Iout = 0 mA to 150 mA
Vout
Line Regulation
Vin = 6 V to 28 V, Iout = 5 mA
Regline
−20
0
20
mV
Load Regulation
Iout = 0.1 mA to 150 mA
Regload
−40
10
40
mV
Dropout Voltage (Note 11)
Iout = 100 mA
Iout = 150 mA
VDO
−
−
225
300
450
600
mV
Output Capacitor for Stability
(Note 12)
Iout = 0 mA to 150 mA
Cout
ESR
1.0
0.01
−
−
100
100
mF
W
Iq
−
−
25
−
31
33
mA
V
QUIESCENT CURRENTS
Quiescent Current, Iq = Iin − Iout
Iout = 0.1 mA, TJ = 25°C
Iout = 0.1 mA to 150 mA, TJ ≤ 125°C
CURRENT LIMIT PROTECTION
Current Limit
Vout = 0.96 x Vout_nom
ILIM
205
−
525
mA
Short Circuit Current Limit
Vout = 0 V
ISC
205
−
525
mA
PSRR
−
60
−
dB
−
2
−
−
0.8
−
−
−
1
PSRR
Power Supply Ripple Rejection
(Note 12)
f = 100 Hz, 0.5 Vpp
DT (Reset Delay Time Select)
DT Threshold Voltage
DT Input Current
Vth(DT)
Logic Low
Logic High
VDT = 5 V
IDT
V
μA
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
11. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.
12. Values based on design and/or characterization.
13. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options.
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NCV8769
ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VDT = GND, VSI = Vout, RSI1 & RSI2 not used, Cin = 0.1 mF, Cout = 1 mF, for typical
values TJ = 25°C, for min/max values TJ = −40 °C to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
90
93
96
VRH
−
2.0
−
%Vout
IROmax
1.75
−
−
mA
VROL
−
0.15
0.25
V
Reset Output High Voltage
VROH
4.5
−
−
V
Integrated Reset Pull Up Resistor
RRO
15
30
50
kW
tRD
12.8
25.6
16
32
19.2
38.4
ms
tRR
16
25
38
μs
1.25
1.20
1.33
1.25
1.40
1.33
ISI
−1
0.1
1
μA
RSO
15
30
50
kW
VSOL
−
0.15
0.25
V
VSOH
4.5
−
−
V
1.75
−
−
RESET OUTPUT RO
Output Voltage Reset Threshold
(Note 13)
Vout decreasing
Vin > 5.5 V
VRT
Reset Hysteresis
Maximum Reset Sink Current
Vout = 4.5 V, VRO = 0.25 V
Reset Output Low Voltage
Vout > 1 V, IRO < 200 mA
Reset Delay Time (Note 13)
DT connected to GND
DT connected to Vout
Reset Reaction Time (see Figure
29)
%Vout
EARLY WARNING (SI and SO)
Sense Input Threshold
(NCV8769y0)
VSI(th)
High
Low
Sense Input Current (NCV8769y0)
VSI = 5 V
Integrated Sense Output Pull Up
Resistor
Sense Output Low Voltage
VSI < 1.2 V, ISO < 200 mA, Vout > 1 V
Sense Output High Voltage
ISOmax
V
Maximum Sense Output Sink
Current
Vout = 4.5 V, VSI < 1.2 V, VSO = 0.25 V
mA
SI High to SO High Reaction Time
VSI increasing
tPSOLH
−
7
12
μs
SI Low to SO Low Reaction Time
VSI decreasing
tPSOHL
−
3.8
5.0
μs
Thermal Shutdown Temperature
(Note 12)
TSD
150
175
195
°C
Thermal Shutdown Hysteresis
(Note 12)
TSH
−
25
−
°C
THERMAL SHUTDOWN
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
11. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.
12. Values based on design and/or characterization.
13. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options.
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NCV8769
TYPICAL CHARACTERISTICS
300
Vin = 13.2 V
Iout = 100 mA
29
28
Iq, QUIESCENT CURRENT (mA)
Iq, QUIESCENT CURRENT (mA)
30
27
26
25
24
23
22
21
20
−40 −20
0
20
40
60
80
150
100
50
5
10
15
20
25
35
Figure 4. Quiescent Current vs. Temperature
Figure 5. Quiescent Current vs. Input Voltage
5.10
Vout, OUTPUT VOLTAGE (V)
28
TJ = 150°C
27
26
TJ = −40°C
25
TJ = 25°C
24
23
22
21
Vin = 13.2 V
20
0
25
50
75
100
125
5.05
5.00
4.95
4.90
−40 −20
150
0
20
40
60
80
100 120 140 160
Iout, OUTPUT CURRENT (mA)
TJ, JUNCTION TEMPERATURE (°C)
Figure 6. Quiescent Current vs. Output Current
Figure 7. Output Voltage vs. Temperature
6
500
Iout = 1.0 mA
5
4
3
TJ = 25°C
2
1
TJ = −40°C
TJ = 150°C
0
1
2
3
4
5
6
7
40
Vin = 13.2 V
Iout = 100 mA
29
0
30
Vin, INPUT VOLTAGE (V)
VDO, DROPOUT VOLTAGE (mV)
Iq, QUIESCENT CURRENT (mA)
200
TJ, JUNCTION TEMPERATURE (°C)
30
Vout, OUTPUT VOLTAGE (V)
250
0
0
100 120 140 160
Iout = 0 mA
TJ = 25°C
400
TJ = 25°C
200
100
0
0
8
TJ = 150°C
300
TJ = −40°C
25
50
75
100
125
Vin, INPUT VOLTAGE (V)
Iout, OUTPUT CURRENT (mA)
Figure 8. Output Voltage vs. Input Voltage
Figure 9. Dropout vs. Output Current
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150
NCV8769
TYPICAL CHARACTERISTICS
400
400
ILIM, ISC, CURRENT LIMIT (mA)
VDO, DROPOUT VOLTAGE (mV)
500
Iout = 150 mA
300
Iout = 100 mA
200
100
0
−40 −20
0
20
40
60
80
ILIM @ Vout = 4.8 V
200
100
0
5
10
15
20
25
30
35
TJ, JUNCTION TEMPERATURE (°C)
Vin, INPUT VOLTAGE (V)
Figure 10. Dropout vs. Temperature
Figure 11. Output Current Limit vs. Input
Voltage
400
100
Vin = 13.2 V
ESR, STABILITY REGION (W)
ILIM, ISC, CURRENT LIMIT (mA)
300
0
100 120 140 160
TJ = 25°C
ISC @ Vout = 0 V
350
ISC @ Vout = 0 V
300
ILIM @ Vout = 4.8 V
250
200
−40 −20
0
20
40
60
80
Vin = 13.2 V
TJ = −40°C to 150°C
Cout = 1 mF − 100 mF
10
STABLE REGION
1
0.1
0.01
100 120 140 160
40
0
50
100
150
200
250
300
350
TJ, JUNCTION TEMPERATURE (°C)
Iout, OUTPUT CURRENT (mA)
Figure 12. Output Current Limit vs. Temperature
Figure 13. Cout ESR Stability vs. Output Current
TJ = 25°C
Iout = 1 mA
Cout = 10 mF
trise/fall = 1 ms (Vin)
14.2 V
Vin
(1 V/div)
13 V
TJ = 25°C
Vin = 13.2 V
Cout = 10 mF
trise/fall = 1 ms (Iout)
150 mA
Iout
(100 mA/div)
12.2 V
0.1 mA
5.08 V
5.15 V
Vout
(50 mV/div)
Vout
(200 mV/div)
5V
5V
4.97 V
4.79 V
TIME (20 ms/div)
TIME (500 ms/div)
Figure 15. Load Transients
Figure 14. Line Transients
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NCV8769
TYPICAL CHARACTERISTICS
100
TJ = 25°C
Rout = 5 kW
TJ = 25°C
Vin = 13.2 V ±0.5 VPP
Cout = 1 mF
Iout = 1 mA
90
Vin
(5 V/div)
80
PSRR (dB)
70
Vout
(5 V/div)
60
50
40
VRO
(5 V/div)
30
VSO
(5 V/div)
10
20
0
TIME (100 ms/div)
10
100
10000
100000
f, FREQUENCY (Hz)
Figure 16. Power Up and Down Transient
Figure 17. PSRR vs. Frequency
40
4.80
Vin = 13.2 V
tRD, RESET DELAY TIME (ms)
Vin = 13.2 V
4.75
4.70
4.65
4.60
−40 −20
35
VDT = Vout
30
25
20
VDT = GND
15
10
−40 −20
0
20 40 60 80 100 120 140 160
TJ, JUNCTION TEMPERATURE (°C)
0
20
40
VSI_(th),H (VSI Increasing)
1.32
1.3
1.28
1.26
VSI_(th),L (VSI Decreasing)
1.24
1.22
−40 −20
0
20
80
100 120 140 160
Figure 19. Reset Time vs. Temperature
1.36
1.34
60
TJ, JUNCTION TEMPERATURE (°C)
Figure 18. Reset Threshold vs. Temperature
SENSE INPUT VOLTAGE (V)
VRT, RESET THRESHOLD (V)
1000
40
60
80
100 120 140 160
TJ, JUNCTION TEMPERATURE (°C)
Figure 20. SI Threshold vs. Temperature
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NCV8769
Vin
t
Vout