TL7757

SUPPLY-VOLTAGE SUPERVISOR

AND PRECISION VOLTAGE DETECTOR

SLVS041E – SEPTEMBER 1991 – REVISED JULY 1999

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

5.5 V

+

–

15 V

A

TL7757

VCC

RESET

GND

Figure 1. Test Circuit for Output Leakage Current

NOTE A: Includes jig and probe capacitance.

VCC

TL7757

RESET

GND

Pulse

Generator

RL = 1 kΩ

OUT

CL = 100 pF

(see Note A)

0.1

mF

Figure 2. Test Circuit for RESET Output Switching Characteristics

NOTE A: VCC slew rate ≤ 5 µs

RESET

4.8 V

VIT +

VIT –

VCC

(see Note A)

4.3 V

tPLH

tPHL

90%

50%

10%

90%

50%

10%

tr

tf

Figure 3. Switching Diagram