BQ25700A Datasheet, PDF (9/82 Pages) Texas Instruments – SMBus Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

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Electrical Characteristics (continued)
over T_J = –40 to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
CHARGE CURRENT REGULATION IN FAST CHARGE
V_{IREG_CHG_RNG}
Charge current regulation
differential voltage range
VIREG_CHG = VSRP –
VSRN
REG0x14() = 0x1000H
I_{CHRG_REG_ACC}
Charge current regulation
accuracy 10-mΩ current
sensing resistor, VBAT above
0x3E() setting (0°C to 85°C)
REG0x14() = 0x0800H
REG0x14() = 0x0400H
REG0x14() = 0x0200H
CHARGE CURRENT REGULATION IN LDO MODE
CELL 2s-4s
I_CLAMP
Pre-charge current clamp
CELL 1 s, V_SRN < 3 V
CELL 1 s, 3 V < V_SRN <
VSYSMIN
REG0x14() = 0x0180H
2S-4S
1S
I_{PRECHRG_REG_ACC}
Pre-charge current regulation
accuracy with 10-Ω SRP/SRN
series resistor, VBAT below
REG0x3E() setting (0°C to
85°C)
REG0x14() = 0x0100H
2S-4S
1S
REG0x14() = 0x00C0H
2S-4S
1S
REG0x14() = 0x0080H
2S-4S
I_{LEAK_SRP_SRN}
SRP, SRN leakage current
mismatch (0°C to 85°C)
INPUT CURRENT REGULATION
V_{IREG_DPM_RNG}
Input current regulation
differential voltage range
V_{IREG_DPM} = V_ACP – V_ACN
I_{DPM_REG_ACC}
Input current regulation
accuracy (–40°C to 105°C)
with 10-Ω ACP/ACN series
resistor
REG0x3F() = 0x4FFFH
REG0x3F() = 0x3BFFH
REG0x3F() = 0x1DFFH
REG0x3F() = 0x09FFH
I_{LEAK_ACP_ACN}
ACP, ACN leakage current
mismatch
V_{IREG_DPM_RNG_ILIM}
Voltage Range for input
current regulation
I_{DPM_REG_ACC_ILIM}
Input Current Regulation
Accuracy on ILIM_HIZ pin
V_{ILIM_HIZ} = 1 V + 40 × IDPM ×
R_AC, with 10-Ω ACP/ACN
series resistor
I_{LEAK_ILIM}
I_{LIM_HIZ} pin leakage
INPUT VOLTAGE REGULATION
V_{ILIM_HIZ} = 2.6 V
V_{ILIM_HIZ} = 2.2 V
V_{ILIM_HIZ} = 1.6 V
V_{ILIM_HIZ} = 1.2 V
V_{IREG_DPM_RNG}
Input voltage regulation range Voltage on VBUS
Copyright © 2017, Texas Instruments Incorporated
bq25700A
SLUSCQ8 – MAY 2017
MIN
0
–3%
–4%
–5%
–12%
–15%
–25%
–20%
–35%
–25%
–50%
–30%
–12
TYP
MAX UNIT
4096
2048
1024
512
384
384
2
384
256
192
128
81.28 mV
mA
2%
mA
3%
mA
6%
mA
12%
mA
mA
A
mA
15%
25%
mA
20%
35%
mA
25%
50%
mA
30%
10 µA
0.5
3820
2830
1350
340
–16
1
3800
2800
1300
300
–1
3.2
4000
3000
1500
500
64 mV
4000 mA
3000 mA
1500 mA
500 mA
10 µA
4V
4200 mA
3200 mA
1700 mA
700 mA
1 µA
19.52 V
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