BQ24751RHDRG4 Datasheet, PDF (6/38 Pages) Texas Instruments – Host-controlled Multi-chemistry Battery Charger

bq24751
SLUS734D – DECEMBER 2006 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
PH
PVCC, ACP, ACN, SRP, SRN, BAT, BATDRV, ACDRV
REGN, LODRV
VDAC, IADAPT
Voltage range
VREF
ACSET, SRSET, TS, ACDET, ACOP, CHGEN, CELLS, ACGOOD,
LEARN, OVPSET
VADJ
BTST, HIDRV with respect to AGND and PGND
AGND, PGND
Maximum difference
voltage
ACP–ACN, SRP–SRN
Junction temperature range, T_J
Storage temperature range, T_stg
MIN NOM MAX UNIT
–1
24
0
24
0
6.5
0
3.6
3.3
V
0
5.5
0
6.5
0
30
–0.3
0.3
–0.3
0.3 V
–55
125 °C
–40
150 °C
ELECTRICAL CHARACTERISTICS
7.0 V ≤ V_PVCC ≤ 24 V, 0°C < T_J < +125°C, typical values are at T_A = 25°C, with respect to AGND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
OPERATING CONDITIONS
V_{PVCC_OP}
PVCC Input voltage operating range
CHARGE VOLTAGE REGULATION
5.0
24.0
V
V_{BAT_REG_RNG}
V_{VDAC_OP}
V_{ADJ_OP}
BAT voltage regulation range
VDAC reference voltage range
VADJ voltage range
4-4.512 V per cell, times 2,3,4 cells
8 V, 8.4 V, 9.024 V
8
2.6
0
–0.5%
18.048
V
3.6
V
REGN
V
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
default to 4.2 V per cell
VADJ connected to REGN, 8.4 V, 12.6 V,
16.8 V
–0.5%
0.5%
CHARGE CURRENT REGULATION
V_{IREG_CHG}
Charge current regulation differential V_{IREG_CHG} = V_SRP – V_SRN
voltage range
0
100 mV
V_{SRSET_OP}
SRSET voltage range
Charge current regulation accuracy
V_{IREG_CHG} = 40–100 mV
V_{IREG_CHG} = 20 mV
V_{IREG_CHG} = 5 mV
V_{IREG_CHG} = 1.5 mV (V_BAT>4V)
0
VDAC
V
–3
3
–5
5
%
–25
25
–33
33
6
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