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BQ24750 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. BQ24750
Description  Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ24750 Datasheet(HTML) 6 Page - Texas Instruments

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
bq24750
SLUS735 – DECEMBER 2006
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
PH
–1
24
PVCC, ACP, ACN, SRP, SRN, BAT, BATDRV, ACDRV
0
24
REGN, LODRV
0
6.5
VDAC, IADAPT
0
3.6
Voltage range
VREF
3.3
V
ACSET, SRSET, TS, ACDET, ACOP, CHGEN, CELLS, ACGOOD, DPMDET
0
5.5
VADJ
0
6.5
BTST, HIDRV with respect to AGND and PGND
0
30
AGND, PGND
–0.3
0.3
Maximum difference voltage: ACP–ACN, SRP–SRN
–0.3
0.3
Junction temperature range
–40
125
°C
Storage temperature range
–55
150
7.0 V
≤ V
PVCC≤ 24 V, 0°C < TJ < +125°C, typical values are at TA = 25°C, with respect to AGND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OPERATING CONDITIONS
VPVCC_OP
PVCC Input voltage operating range
5.0
24.0
V
CHARGE VOLTAGE REGULATION
VBAT_REG_RNG
BAT voltage regulation range
4-4.512 V per cell, times 2,3,4 cells
8
18.048
V
VVDAC_OP
VDAC reference voltage range
2.6
3.6
V
VADJ_OP
VADJ voltage range
0
REGN
V
8 V, 8.4 V, 9.024 V
–0.5
0.5
Charge voltage regulation accuracy
12 V, 12.6 V, 13.536 V
–0.5
0.5
%
16 V, 16.8 V, 18.048 V
–0.5
0.5
Charge voltage regulation set to
VADJ connected to REGN, 8.4 V, 12.6 V,
–0.5
0.5
%
default to 4.2 V per cell
16.8 V
CHARGE CURRENT REGULATION
VIREG_CHG
Charge current regulation differential
VIREG_CHG = VSRP– VSRN
0
100
mV
voltage range
VSRSET_OP
SRSET voltage range
0
VDAC
V
VIREG_CHG = 40–100 mV
–3
3
VIREG_CHG = 20 mV
–5
5
Charge current regulation accuracy
%
VIREG_CHG = 5 mV
–25
25
VIREG_CHG = 1.5 mV
–33
33
INPUT CURRENT REGULATION
VIREG_DPM
Adapter current regulation differential
VIREG_DPM = VACP– VACN
0
100
mV
voltage range
VACSET_OP
ACSET voltage range
0
VDAC
V
VIREG_DPM = 40–100 mV
–3
3
VIREG_DPM = 20 mV
–5
5
Input current regulation accuracy
%
VIREG_DPM = 5 mV
–25
25
VIREG_DPM = 1.5 mV
–33
33
VREF REGULATOR
VVREF_REG
VREF regulator voltage
VACDET > 0.6 V, 0-30 mA
3.267
3.3
3.333
V
IVREF_LIM
VREF current limit
VVREF = 0 V, VACDET > 0.6 V
35
75
mA
6
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