6.5 Electrical Characteristics: TL77xxBC, TL77xxBI, and TL7705BQ

over operating free-air temperature range (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage, RESET

IOH = –16 mA

VCC – 1.5

V

VOL

Low-level output voltage, RESET

IOL = 16 mA

0.4

V

VREF

Reference voltage, REF

Iref = –500 µA, TA = 25°C

2.48

2.53

2.58

V

VIT–

Negative-going input

threshold voltage at

SENSE input

TL7702B

TA = 25°C

2.505

2.53

2.555

V

TL7705B

4.5

4.55

4.6

TL7733B

3.03

3.08

3.13

TL7702B

TA = full range(2)

2.48

2.53

2.58

TL7705B

4.45

4.55

4.65

TL7733B

3

3.08

3.16

VHYS

Hysteresis, SENSE

(VIT+ – VIT–)

TL7702B

VCC = 3.6 V to 18 V, TA = 25°C

10

mV

TL7705B

30

TL7733B

10

VRES

Power-up reset voltage(3)

IOL at RESET = 2 mA, TA = 25°C

1

V

II

Input current

RESIN

VI = 0.4 V to VCC

–10

µA

SENSE, TL7702B

VI = VREF to 18 V

–0.1

–2

IOH

High-level output current, RESET

VO = 18 V, see Figure 7-1

50

µA

IOL

Low-level output current, RESET

VO = 0 V, see Figure 7-1

–50

µA

ICC

Supply current

VSENSE = 15 V, RESIN ≥ 2 V

1.8

3

mA

VCC = 18 V, TA = full range(2)

3.5

(1)

All electrical characteristics are measured with 0.1-µF capacitors connected at REF, CT, and VCC to GND.

(2)

Full range is 0°C to 70°C for the C-suffix devices, –40°C to 85°C for the I-suffix devices, and –40°C to 125°C for the Q-suffix device.

(3)

This is the lowest voltage at which RESET becomes active.

6.6 Switching Characteristics: TL77xxBC, TL77xxBI, and TL7705BQ

VCC = 5 V, CT open, TA = 25°C, over operating free-air temperature range (unless otherwise noted)

PARAMETER

FROM (INPUT)

TO (OUTPUT)

TEST CONDITIONS

MIN

TYP

MAX UNIT

tPLH

Propagation delay time from low-

level to high-level output

RESIN

RESET

See , Figure 6-1

Figure 6-2, Figure 7-1

270

500

ns

tPHL

Propagation delay time from high-

level to low-level output

RESIN

RESET

See Figure 6-1,

Figure 6-2, Figure 7-2

270

500

ns

tw

Effective pulse duration

RESIN

See Figure 7-3,Figure

7-4

150

ns

SENSE

100

tr

Rise time

RESET

See Figure 6-1,

Figure 7-1, Figure 7-2

75

ns

RESET

75

150

tf

Fall time

RESET

See Figure 6-1,

Figure 7-1, Figure 7-2

150

200

ns

RESET

50

TL7702B, TL7705B, TL7733B

SLVS037O – SEPTEMBER 1989 – REVISED DECEMBER 2020

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