BQ294604 datasheet(5/17 Pages) TI

Part #	BQ294604

Description	Single-Cell Protector for Li-Ion Batteries

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Manufacturer	TI [Texas Instruments]

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bq294602, bq294604

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SLUSAS0B – DECEMBER 2011 – REVISED MARCH 2012

DC CHARACTERISTICS

Typical values stated where TA = 25°C and VDD = 4 V, MIN/MAX values stated where TA = –40°C to 110°C and VDD = 4 V

(unless otherwise noted).

Test

Symbol

Parameter

Condition

Min

Typ

Max

Unit

#

Voltage Protection Threshold VCx

1.0

bq294602, fixed delay 4 s, V1 > VOV

4.35

V

1.1

bq294604, fixed delay 6.5 s, V1 > VOV

4.35

V

V(PROTECT) –

1.2

VOV

Overvoltage

bq294622, fixed delay 4 s, V1 > VOV

(1)

4.45

V

Detection

1.3

bq294624, fixed delay 6.5 s, V1 > VOV

(1)

4.45

V

1.4

bq294682, fixed delay 4 s, V1 > VOV

(1)

4.225

V

1.5

bq294684, fixed delay 6.5 s, V1 > VOV

(1)

4.225

V

Overvoltage

1.6

VHYS

Detection

250

300

400

V

Hysteresis

OV Detection

1.7

VOA

TA = 25°C

–10

10

mV

Accuracy

TA = –40°C

–40

44

mV

OV Detection

TA = 0°C

–20

20

mV

1.8

VOA –DRIFT

Accuracy due to

TA = 60°C

–24

24

mV

Temperature

TA = 110°C

–54

54

mV

Supp ly and Leakage Current

(V1–VSS) = 4.0 V (See Figure 9 for reference)

1

2

1.9

ICC

Supply Current

µA

(V1–VSS) = 2.8 V with TA = –40°C to 60°C

1.25

Measured at V1 = 4.0 V

Input Current at

1.10

IIN

(V1–VSS) = 4.0 V

–0.1

0.1

µA

V1 Pins

TA = 0°C to 60°C (See Figure 9 for reference.)

Output Drive OUT

1.11

(V1–VSS) > VOV

3.0

VDD - 0.3

V

VDD = V1, IOH = 100 µA, TA = –40°C to 110°C

1.12

Output Drive

VOUT

Voltage

(V1–VSS) < VOV, IOL = 100 µA, TA = 25°C

1.13

250

400

mV

TA = –40°C to 110°C

OUT Short

1.14

IOUT(Short)

OUT = 0 V, (V1–VSS) > VOV

1.5

3.0

mA

Circuit Current

Output Rise

1.15

tR

CL = 1 nF, VOH(OUT) = 0 V to 5 V

(2)

5

µs

Time

Output

1.16

ZO

2

5

k

Ω

Impedance

Fixed Delay Timer

Fixed Delay, bq2946x2

3.2

4

4.8

Fault Detection

1.17

tDELAY

s

Delay Time

Fixed Delay, bq2946x4

5.2

6.5

7.8

Fault Detection

1.18

tDELAY_CTM

Delay Time in

Fixed delay (Internal settings)

15

ms

Test Mode

(1)

Product Preview only

(2)

Specified by design. Not 100% tested in production.

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Product Folder Link(s): bq294602 bq294604

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