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INA302, INA303

SBOS775C – SEPTEMBER 2016 – REVISED MARCH 2019

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Copyright © 2016–2019, Texas Instruments Incorporated

Electrical Characteristics (continued)

at TA = 25°C, VSENSE = 0 V, VREF = VS / 2, VS = 5 V, VIN+ = 12 V, VLIMIT1 = 3 V, and VLIMIT2 = 3 V (INA302) or 2 V (INA303)

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

COMPARATOR

tp

Total alert propagation delay

Comparator 1, input overdrive = 1 mV

0.6

1

µs

Comparator 2, input overdrive = 1 mV,

delay = 100 kΩ to VS

1.25

2

Slew-rate-limited tp

Comparator 1, VOUT step = 0.5 V to 4.5 V,

VLIMIT = 4 V

1

1.5

µs

Comparator 2 (INA302),

VOUT step = 0.5 V to 4.5 V, VLIMIT = 4 V,

delay = 100 kΩ to VS

1.5

2.5

Comparator 2 (INA303),

VOUT step = 4.5 V to 0.5 V, VLIMIT = 1 V,

delay = 100 kΩ to VS

1.5

2.5

ILIMIT1

Limit threshold output current,

comparator 1

TA = 25ºC, VLIMIT1 < VS – 0.6 V

79.2

80

80.8

µA

TA = –40ºC to +125ºC,

VLIMIT1 < VS – 0.6 V

78.4

81.6

ILIMIT2

Limit threshold output current,

comparator 2

TA = 25ºC, VLIMIT2 < VS – 0.6 V

79.7

80

80.4

µA

TA = –40ºC to +125ºC,

VLIMIT2 < VS – 0.6 V

79.2

80.8

VOS

Offset voltage, both comparators

A1 versions

0.5

3.5

mV

A2 versions

0.5

3.5

A3 versions

0.5

4.0

HYS

Hysteresis

comparator 1, comparator 2

100

mV

Internal programmable delay error

TA = –40ºC to +125ºC

4%

VTH

Delay threshold voltage

TA = –40ºC to +125ºC

1.21

1.22

1.23

V

ID

Delay charging current

TA = –40ºC to +125ºC, VDELAY = 0.6 V

4.85

5

5.15

µA

RD

Delay discharge resistance

70

Ω

VIH

LATCH1, LATCH2 high-level input

voltage

TA = –40ºC to +125ºC

1.4

6

V

VIL

LATCH1, LATCH2 low-level input voltage

TA = –40ºC to +125ºC

0

0.4

V

VOL

Alert low-level output voltage

IOL = 3 mA, TA = –40ºC to +125ºC

70

400

mV

ALERT1, ALERT2 pin leakage input

current

VOH = 3.3 V

0.1

1

µA

LATCH1, LATCH2 digital leakage input

current

0 V

≤ VLATCH1 , VLATCH2 ≤ VS

1

µA

POWER SUPPLY

IQ

Quiescent current

TA = 25ºC

850

950

µA

TA = –40ºC to +125ºC

1150