TL7759

SUPPLY-VOLTAGE SUPERVISORS

SLVS042D – JANUARY 1991 – REVISED JULY 1999

3

POST OFFICE BOX 655303

PARAMETER

TEST CONDITIONS

TL7759Y

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOL

Low-level output voltage

RESET

VCC = 4.3 V,

IOL = 24 mA

0.4

V

VIT–

Input threshold voltage (negative-going VCC)

4.55

V

Vres†

Power-up reset voltage

RL = 2.2 kΩ

0.8

V

Vhys‡

Hysteresis at VCC input

50

mV

ICC

Supply current

VCC = 4.3 V,

No load

1400

µA

† This is the lowest voltage at which RESET becomes active, VCC slew rate ≤ 5 V/µs.

‡ This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–.

timing diagram

VIT –

0

RESET

0

Vres

VCC

VIT+

Output Undefined

for VCC Less Than 1 V

Output Undefined

VIT+

VIT–

Vres

PARAMETER

FROM

TO

TEST CONDITIONS

TL7759C

UNIT

PARAMETER

(INPUT)

(OUTPUT)

TEST CONDITIONS

MIN

MAX

UNIT

tPLH

Propagation delay time, low-to high-level output

VCC

RESET

See Figures 2 and 3§

5

µs

tPHL

Propagation delay time, high-to low-level output

VCC

RESET

See Figures 2 and 4

5

µs

tr

Rise time

RESET

See Figures 2 and 4§

1

µs

tf

Fall time

RESET

See Figures 2 and 4

1

µs

tw(min)

Minimum pulse duration

VCC

RESET

See Figures 2 and 4

5

µs

§ VCC slew rate ≤ 5 V/µs