bq24700, bq24701

NOTEBOOK PC BATTERY CHARGE CONTROLLER

AND SELECTOR WITH DPM

SLUS452B – APRIL 2001 – REVISED NOVEMBER 2002

8

POST OFFICE BOX 655303

otherwise specified) (continued)

battery current output amplifier

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

GTR

Transfer gain

(SRP – SRN) = 50 mV, See Note 6

5

18.2

V

VIBAT

Battery current readback output voltage

(IBAT)

(SRP – SRN) = 50 mV, SRP = 12 V,

VCC = 18 V,

TA = 25°C

0.97

1.00

1.03

V

Line rejection voltage

TA = 25°C

10

mV/V

CM

Common-mode input range (SRP)

5

18.2

V

VO(IBAT)

Battery current output voltage range

(IBAT)

0

2.5

V

IS(O)

Output source current (IBAT)

(SRP – SRN) = 100 mV

150

600

1200

µA

Total batter c rrent readback mid scale

(SRP – SRN) = 50 mV, TA = 25°C, See Note 7

–4%

4%

Total battery current readback mid-scale

accuracy

(SRP – SRN) = 50 mV, –40

°C ≤ TA ≤ 85°C,

See Note 7

–6%

6%

Total batter c rrent readback f ll scale

(SRP – SRN) = 100 mV, TA = 25°C, See Note 7

–6%

6%

Total battery current readback full-scale

accuracy

(SRP – SRN) = 100 mV, –40

°C ≤ TA ≤ 85°C,

See Note 7

–8%

8%

5-V voltage reference

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V

O tp t oltage (VREF)

0

°C ≤ TA ≤ 70°C

5.000

5.030

5.060

V

VREF Output voltage (VREF)

–40

°C ≤ TA ≤ 85°C

4.960

5.030

5.070

V

Line regulation

0.15

0.37

mV/V

Load regulation

1 mA

≤ ILOAD ≤ 5 mA

1.0

2.5

mV/mA

Short circuit current

8

18

30

mA

half supply regulator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VHSP(on)

VCC up-threshold for half supply

regulation

14.5

15.5

16.5

V

VCC hysteresis for half supply regulation

–7.2%

–6.5%

–6%

VHSP/VCC Voltage regulation

VCC

≥ VHSP(on), 16.5 V ≤ VCC ≤ 20 V

0.45

0.50

0.55

VHSP

VCC < VHSP(on), 7 V ≤ VCC ≤ 14.5 V

2.0

V

NOTES: 6. Battery readback transfer gain G

TR +

V

IBAT

(SRP

* SRN)

7. Total battery current readback accuracy is based on the measured value of VIBAT, VIBATm, and the calculated value of VIBAT,

VIBATc, using the measured value of the transfer gain, GTR.

V

IBATc +

(SRP

* SRN)

GTR

Total Accuracy in %

+

V

IBATm *

V

IBATc

V

IBATm

100