BQ24030 datasheet(5/20 Pages) TI

Part #	BQ24030

Description	SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYI)

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Manufacturer	TI [Texas Instruments]

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bq24030, bq24032, bq24035

SLUS618 – AUGUST 2004

ELECTRICAL CHARACTERISTICS (continued)

over junction temperature range (0

°C ≤ T

J≤ 125°C) and the recommended supply voltage range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

VVCC(min)≥ 4.35 V, VI(BAT) > V(LOWV),

VI(USB) - VI(BAT) > V(DO-MAX), ISET2= Low,

80

100

PSEL = Low(10)

USB input current range

mA

VVCC(min)≥ 4.35 V, VI(BAT) > V(LOWV),

VI(USB) - VI(BAT) > V(DO-MAX), ISET2= High,

400

500

PSEL = Low(11)

PRECHARGE and SHORT-CIRCUIT CURRENT REGULATION

Precharge to fast-charge transition

V(LOWV)

Voltage on BAT

2.9

3.0

3.1

V

threshold

VVCC(min)≥ 4.5 V, tFALL = 100 ns,

Deglitch time for fast-charge to

10 mV overdrive,

22.5

ms

precharge transition(12)

VI(BAT) decreasing below threshold

1 V < VI(BAT) < V(LOWV), t < t(PRECHG),

IO(PRECHG)

Precharge range

10

150

mA

IO(PRECHG) = (K(SET)× V(PRECHG))/ RSET

V(PRECHG)

Precharge set voltage

1 V < VI(BAT) < V(LOWV), t < t(PRECHG)

230

250

270

mV

Short circuit pull-up, BAT

VI(BAT)≤ 1 V

1

k

Ω

CHARGE TAPER DETECTION

VI(BAT) < V(RCH),

I(TAPER)

Charge taper detection range

10

150

mA

I(TAPER) = (K(SET)× V(TAPER))/ RSET

Voltage on ISET1, VREG(BAT) = 4.2 V,

V(TAPER)

Charge taper detection set voltage

235

250

265

mV

VI(BAT) > V(RCH)

VVCC(min)≥ 4.5 V, tFALL = 100 ns,

10 mV overdrive,

Deglitch time for taper detection

22.5

ms

ICHG increasing above or decreasing below

threshold

TEMPERATURE SENSE COMPARATORS

VHTF

High voltage threshold

2.465

2.500

2.535

V

VLTF

Low voltage threshold

0.485

0.500

0.515

V

ITS

Temperature sense current source

94

100

106

µA

VVCC(min)≥ 4.5 V, R(TMR) = 50 kΩ,

Deglitch time for temperature fault

VI(BAT) increasing or decreasing above and

22.5

ms

detection(12)

below; 100-ns fall time, 10-mv overdrive

BATTERY RECHARGE THRESHOLD

VO(BAT-

VRCH

Recharge threshold voltage

REG)

V

-0.075

-0.100

-0.125

VVCC(min)≥ 4.5 V, R(TMR) = 50 kΩ,

Deglitch time for recharge detec-

VI(BAT) increasing or decreasing below

22.5

ms

tion(12)

threshold, 100-ns fall time, 10-mv over-

drive

STAT1, STAT2. ACPG AND USBPG OUTPUTS

Low-level output saturation volt-

VOL

IOL = 5 mA

0.25

V

age

Input leakage current

1

5

µA

ISET2, CE AND PSEL INPUTS

VIL

Low-level input voltage

0

0.4

V

VIH

High-level input voltage

1.4

(10) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at

the USB charge rate. In thisconfiguration the specification is 75 mA (min) and 95 mA (max).

(11) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at

the USB charge rate. In thisconfiguration the specification is 375 mA (min) and 475 mA (max).

(12) All deglitch periodsare a function of the timer setting.

5

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