TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
D Power-On Reset Generator
D Automatic Reset Generation After Voltage
D
D
D
D
D
D PACKAGE
(TOP VIEW)
Drop
Low Standby Current . . . 20 µA
RESET Output Defined When VCC
Exceeds 1 V
Precision Threshold Voltage
4.55 V ±120 mV
High Output Sink Capability . . . 20 mA
Comparator Hysteresis Prevents Erratic
Resets
RESET
VCC
NC
GND
1
8
2
7
3
6
4
5
NC
NC
NC
NC
NC−No internal connection
LP PACKAGE
(TOP VIEW)
GND
description/ordering information
VCC
The TL7757 is a supply-voltage supervisor
designed for use in microcomputer and
microprocessor systems. The supervisor
monitors the supply voltage for undervoltage
conditions. During power up, when the supply
voltage, VCC, attains a value approaching 1 V, the
RESET output becomes active (low) to prevent
undefined operation. If the supply voltage drops
below threshold voltage level (VIT−), the RESET
output goes to the active (low) level until the
supply undervoltage fault condition is eliminated.
RESET
PK PACKAGE
(TOP VIEW)
RESET
GND
VCC
GND is in electrical contact with the tab.
ORDERING INFORMATION
SOIC (D)
0°C
0
C to 70°C
70 C
SOT (PK)
TO226 / TO
TO-92
92 (LP)
SOIC (D)
−40°C
40 C to 85°C
85 C
SOT (PK)
TO226 / TO
TO-92
92 (LP)
†
ORDERABLE
PART NUMBER
PACKAGE†
TA
Tube of 75
TL7757CD
Reel of 2500
TL7757CDR
Reel of 1000
TL7757CPK
Bulk of 1000
TL7757CLP
Reel of 2000
TL7757CLPR
Tube of 75
TL7757ID
Reel of 2500
TL7757IDR
Reel of 1000
TL7757IPK
Bulk of 1000
TL7757ILP
Reel of 2000
TL7757ILPR
TOP-SIDE
MARKING
7757C
T7
TL7757C
7757I
7I
TL7757I
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
equivalent schematic
VCC
RESET
R2
R15
Q8
Q2
Q5
Q11
R12
R3
Q13
R5
R4
R6
Q20
Q9
Q7
R10
R8
R14
Q18
Q4
Q10
C1
Q12
R9
Q1
R7
Q21
R16
C2
Q6
Q3
Q19
Q17
R11
R1
Q15
Q14
Q16
R18
R13
GND
ACTUAL DEVICE
COMPONENT COUNT
Transistors
27
Resistors
20
Capacitors
2
absolute maximum ratings over operating junction temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 20 V
Off-state output voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 20 V
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Package thermal impedance, θJA (see Notes 2 and 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
LP package . . . . . . . . . . . . . . . . . . . . . . . . . . 140°C/W
PK package . . . . . . . . . . . . . . . . . . . . . . . . . . . 52°C/W
Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to network terminal ground.
2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
recommended operating conditions
MIN
MAX
1
7
UNIT
VCC
Supply voltage
VOH
High-level output voltage
15
V
IOL
Low-level output current
20
mA
TA
Operating free-air
free air temperature
TL7757C
TL7757I
0
70
−40
85
V
°C
electrical characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
VIT−
Negative going input threshold voltage at VCC
Negative-going
Vhys†
Hysteresis at VCC
VOL
Low level output voltage
Low-level
IOL = 20 mA,
mA
3V
VCC = 4
4.3
IOH
High level output current
High-level
VCC = 7 V,
See Figure 1
VOH = 15 V,
Vres‡
Power up reset voltage
Power-up
RL = 2.2 kΩ,
VCC slew rate ≤ 5 V/µs
ICC
Supply
pp y current
TA
TL7757C
MIN
TYP
MAX
25°C
4.43
4.55
4.67
0°C to 70°C
4.4
25°C
40
0°C to 70°C
30
25°C
50
60
70
0.4
mV
0.8
V
0.8
25°C
1
0°C to 70°C
1
25°C
0.8
µA
A
1
0°C to 70°C
V
1.2
25°C
VCC = 5.5 V
V
4.7
0°C to 70°C
VCC = 4
4.3
3V
UNIT
1400
2000
0°C to 70°C
2000
0°C to 70°C
40
µA
µ
†
This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT−.
‡ This is the lowest voltage at which RESET becomes active.
switching characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
TA
25°C
tPLH
Propagation delay time, low
low-to-high-level
to high level
output
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
tPHL
Propagation delay time, high
high-to-low-level
to low level
output
See Figures 2 and 3
tr
Rise time
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
tf
Fall time
See Figures 2 and 3
tw(min)
Minimum pulse duration at VCC for output
response
TYP
MAX
3.4
5
0°C to 70°C
25°C
5
2
0°C to 70°C
25°C
5
5
0.4
0°C to 70°C
25°C
POST OFFICE BOX 655303
TL7757C
MIN
1
1
0.05
1
0°C to 70°C
1
25°C
5
0°C to 70°C
5
• DALLAS, TEXAS 75265
UNIT
µss
µss
µss
µss
µs
3
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
electrical characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
VIT−
Negative going input threshold voltage at VCC
Negative-going
Vhys†
Hysteresis at VCC
VOL
Low level output voltage
Low-level
IOL = 20 mA,
mA
VCC = 4
4.3
3V
IOH
High level output current
High-level
VCC = 7 V,
See Figure 1
VOH = 15 V,
Vres‡
Power up reset voltage
Power-up
RL = 2.2 kΩ,
VCC slew rate ≤ 5 V/µs
ICC
Supply
pp y current
TA
TL7757I
MIN
TYP
MAX
4.55
4.67
25°C
4.43
−40°C to 85°C
4.4
25°C
40
−40°C to 85°C
30
25°C
VCC = 5.5 V
50
0.4
25°C
1
−40°C to 85°C
1
0.8
−40°C to 85°C
V
µA
A
1
1.2
1400
mV
0.8
0.8
25°C
V
60
70
−40°C to 85°C
25°C
4.3
3V
VCC = 4
4.7
UNIT
V
2000
−40°C to 85°C
2100
−40°C to 85°C
40
µA
µ
†
This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT−.
‡ This is the lowest voltage at which RESET becomes active.
switching characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
TA
25°C
tPLH
time low-to-high-level
low to high level output
Propagation delay time,
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
tPHL
Propagation delay time,
time high-to-low-level
high to low level output
See Figures 2 and 3
tr
Rise time
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
tf
Fall time
See Figures 2 and 3
tw(min)
Minimum pulse duration at VCC for output
response
MAX
3.4
5
5
2
−40°C to 85°C
25°C
5
5
0.4
−40°C to 85°C
25°C
POST OFFICE BOX 655303
TYP
−40°C to 85°C
25°C
4
TL7757I
MIN
1
1
0.05
1
−40°C to 85°C
1
25°C
5
−40°C to 85°C
5
• DALLAS, TEXAS 75265
UNIT
µss
µss
µss
µss
µs
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
PARAMETER MEASUREMENT INFORMATION
15 V
VCC
+
5.5 V
A
TL7757
RESET
−
GND
Figure 1. Test Circuit for Output Leakage Current
VCC
RL = 1 kΩ
TL7757
Pulse
Generator
RESET
0.1 mF
OUT
CL = 100 pF
(see Note A)
GND
NOTE A: Includes jig and probe capacitance
Figure 2. Test Circuit for RESET Output Switching Characteristics
4.8 V
VIT+
VCC
(see Note A)
4.3 V
VIT−
tPLH
tPHL
90%
50%
10%
RESET
90%
50%
10%
tr
tf
NOTE A: VCC slew rate ≤ 5 µs
Figure 3. Switching Diagram
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
TYPICAL CHARACTERISTICS†
Table of Graphs
FIGURE
VCC
Supply voltage vs RESET output voltage
4
ICC
Supply current vs Supply voltage
5
ICC
Supply current vs Free-air temperature
6
VOL
Low-level output voltage vs Low-level output
current
7
VOL
Low-level output voltage vs Free-air temperature
8
IOL
Output current vs Supply voltage
9
VIT−
Input threshold voltage (negative-going VCC) vs Free-air
temperature
10
Vres
Power-up reset voltage vs Free-air temperature
11
Vres
Power-up reset voltage and supply voltage vs Time
12
Propagation delay time
13
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
vs
RESET OUTPUT VOLTAGE
8
2
I CC − Supply Current − mA
IDD
7
RESET Output Voltage − V
TA = 25°C
IO = 0
TA = 25°C
IO = 0
6
5
4
3
2
Output
Undefined
1.5
1
0.5
1
0
0
0
1
2
3
4
5
6
7
0
1
Figure 4
6
3
4
5
6
VCC − Supply Voltage − V
VCC − Supply Voltage − V
†
2
Figure 5
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
TYPICAL CHARACTERISTICS†
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
120
RL = 0
I CC − Supply Current − mA
IDD
1.44
1.4
1.36
1.32
1.28
0.040
0.036
VCC = 7 V
0.032
VCC = 5.5 V
0.028
0.024
0.020
−75
TA = 25°C
110
VCC = 4.3 V
VOL
VOL − Low-Level Output Voltage − mV
1.52
1.48
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
100
90
VCC = 1 V
80
70
60
VCC = 4.3 V
50
40
30
20
10
0
− 50
− 25
0
25
50
75
100
0
125
4
8
12
16
IOL − Low-Level Output Current − mA
TA − Free-Air Temperature − °C
Figure 7
Figure 6
OUTPUT CURRENT
vs
SUPPLY VOLTAGE
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
0.02
120
TA = 25°C
IOL = 20 mA
0.018
100
0.016
I O − Output Current − mA
IO
VOL
VOL − Low-Level Output Voltage − mV
VCC = 4.3 V
80
60
IOL = 8 mA
40
0.014
0.012
0.01
0.008
0.006
0.004
20
0.002
IOL = 1 mA
0
−100
− 50
0
50
100
150
0
0.75
0.8
TA − Free-Air Temperature − °C
0.85
0.9
0.95
1
1.05
VCC − Supply Voltage − V
Figure 9
Figure 8
†
20
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
TYPICAL CHARACTERISTICS†
INPUT THRESHOLD VOLTAGE
(NEGATIVE-GOING VCC)
vs
FREE-AIR TEMPERATURE
POWER-UP RESET VOLTAGE
vs
FREE-AIR TEMPERATURE
1000
4.6
RL = 2.2 kΩ
RL = 0
950
Vres − Power-Up Reset Voltage − mV
Vres
VIT−
VIT − Input Threshold Voltage − V
4.59
4.58
4.57
4.56
4.55
4.54
4.53
4.52
900
850
800
750
700
650
4.51
4.5
−100
100
− 50
0
50
TA − Free-Air Temperature − °C
600
−100
150
− 50
Figure 10
6
TA = 25°C
RL = 2.2 kΩ
TA = 25°C
RL = 2.2 kΩ
150
VCC
5
1.5
4
1
Voltage − V
Vres, VCC − RESET Voltage and Supply Voltage − V
100
PROPAGATION DELAY TIME
2
VCC
.5
RESET
0
3
RESET
2
1
− 0.5
0
−1
−1
0
0.5
1
1.5
2
t − Time − µs
2.5
3
0
2
Figure 12
8
50
Figure 11
POWER-UP RESET VOLTAGE
AND SUPPLY VOLTAGE
vs
TIME
†
0
TA − Free-Air Temperature − °C
4
6
8
10
12
t − Time − µs
14
16
Figure 13
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
18
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
APPLICATION INFORMATION
TYPICAL TIMING DIAGRAM
VIT−
VCC
VIT+
VIT+
TYPICAL APPLICATION DIAGRAM
VIT−
5V
Vres
Vres
0.1 µF
VCC
0
RESET
TL7757
RESET
1 kΩ
System
Reset
GND
Output
Undefined
0
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
9
PACKAGE OPTION ADDENDUM
www.ti.com
27-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TL7757CD
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
7757C
Samples
TL7757CDE4
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
7757C
Samples
TL7757CDR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
7757C
Samples
TL7757CLP
ACTIVE
TO-92
LP
3
1000
RoHS & Green
SN
N / A for Pkg Type
0 to 70
TL7757C
Samples
TL7757CLPE3
ACTIVE
TO-92
LP
3
1000
RoHS & Green
SN
N / A for Pkg Type
0 to 70
TL7757C
Samples
TL7757CLPR
ACTIVE
TO-92
LP
3
2000
RoHS & Green
SN
N / A for Pkg Type
0 to 70
TL7757C
Samples
TL7757CPK
ACTIVE
SOT-89
PK
3
1000
RoHS & Green
SN
Level-2-260C-1 YEAR
0 to 70
T7
Samples
TL7757ID
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
7757I
Samples
TL7757IDR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
7757I
Samples
TL7757ILP
ACTIVE
TO-92
LP
3
1000
RoHS & Green
SN
N / A for Pkg Type
-40 to 85
TL7757I
Samples
TL7757ILPE3
ACTIVE
TO-92
LP
3
1000
RoHS & Green
SN
N / A for Pkg Type
-40 to 85
TL7757I
Samples
TL7757ILPR
ACTIVE
TO-92
LP
3
2000
RoHS & Green
SN
N / A for Pkg Type
-40 to 85
TL7757I
Samples
TL7757IPK
ACTIVE
SOT-89
PK
3
1000
RoHS & Green
SN
Level-2-260C-1 YEAR
-40 to 85
7I
Samples
TL7757IPKG3
ACTIVE
SOT-89
PK
3
1000
RoHS & Green
SN
Level-2-260C-1 YEAR
-40 to 85
7I
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
27-Oct-2022
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of