TL7757

SUPPLY-VOLTAGE SUPERVISOR

AND PRECISION VOLTAGE DETECTOR

SLVS041I – SEPTEMBER 1991 – REVISED AUGUST 2003

2

POST OFFICE BOX 655303

equivalent schematic

VCC

R1

R2

R3

R4

R5

R6

R7

R8

R9

Q1

Q2

Q3

Q4

Q5

Q6

R10

R11

R12

Q7

C1

Q8

Q9

Q10

R13

Q11

Q12

C2

Q13

Q15

Q14

Q16

R14

Q18

Q17

R15

R16

Q19

Q20

Q21

R18

RESET

GND

ACTUAL DEVICE

COMPONENT COUNT

Transistors

27

Resistors

20

Capacitors

2

–0.3 V to 20 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Off-state output voltage range (see Note 1)

–0.3 V to 20 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

97

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

LP package

140

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . .

PK package

52

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . .

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–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.

3. The package thermal impedance is calculated in accordance with JESD 51-7.