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ELECTRICAL CHARACTERISTICS

bq24070

bq24071

SLUS694B – MARCH 2006 – REVISED AUGUST 2006

over junction temperature range (0°C

≤ T

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT BIAS CURRENTS

Active supply current, VCC

1

2

mA

Sleep current (current into BAT

2.6 V

≤ V

2

5

pin)

Excludes load on OUT pin

Input standby current

chip disabled, Excludes all loads,

200

µA

Total current into BAT pin with input

present and chip disabled;

BAT standby current

Excludes all loads, CE=LOW,

45

65

0°C

≤ T

Charge done current, BAT

Charge DONE, input supplying the load

1

5

OUT PIN-VOLTAGE REGULATION

bq24070

4.4

4.5

Output regulation

V

voltage

bq24071

6.0

6.3

OUT PIN – DPPM REGULATION

2.6

3.8

V

DPPM current source

Input present

95

100

105

µA

SF

DPPM scale factor

1.139

1.150

1.162

300

475

mV

BAT to OUT dropout voltage

40

100

(discharging)

OUT PIN - BATTERY SUPPLEMENT MODE

Enter battery supplement mode

(battery supplements OUT

≤ V

I(BAT)

current in the presence of input

– 60 mV

source

V

Exit battery supplement mode

≥ V

I(BAT)

– 20 mV

OUT PIN - SHORT CIRCUIT

Current source between BAT to OUT for

BAT to OUT short-circuit

short-circuit recovery to

10

mA

recovery

AC to OUT short-circuit limit

500

Ω

BAT PIN CHARGING – PRECHARGE

Precharge to fast-charge

Voltage on BAT

2.9

3

3.1

V

transition threshold

Deglitch time for fast-charge to

22.5

ms

Precharge range

10

150

mA

Precharge set voltage

225

250

275

mV

BAT PIN CHARGING - CURRENT REGULATION

100

1000

1500

mA

BAT to OUT pullup

1000

Ω

(1)

(2)

increase in current.

(3)

All deglitch periods are a function of the timer setting and is modified in DPPM or thermal regulation modes by the percentages that the

program current is reduced.

(4)

When input current remains below 2 A, the battery charging current may be raised until the thermal regulation limits the charge current.

4

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