BQ25703A Datasheet, PDF (10/81 Pages) Texas Instruments – I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

bq25703A
SLUSCU1 – MAY 2017
Electrical Characteristics (continued)
over T_J = –40 to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
REG0x07/06()=0x3C80H
V_{DPM_REG_ACC}
Input voltage regulation
accuracy
REG0x07/06()=0x1E00H
REG0x07/06()=0x0500H
OTG CURRENT REGULATION
V_{IOTG_REG_RNG}
Input current regulation
differential voltage range
V_{IREG_DPM} = V_ACP – V_ACN
I_{OTG_ACC}
Input current regulation
accuracy with 50-mA LSB,
with 10-Ω ACP/ACN series
resistor
REG0x09/08() = 0x3C00H
REG0x09/08() = 0x1E00H
REG0x09/08() = 0x0A00H
OTG VOLTAGE REGULATION
V_{IREG_DPM_RNG}
Input voltage regulation range Voltage on VBUS
REG0x0B/0A()=0x3CC0H
V_{OTG_REG_ACC}
OTG voltage regulation
accuracy
REG0x0B/0A()=0x1D80H
REG0x0B/0A()=0x0240H
REFERENCE AND BUFFER
REGN REGULATOR
V_{REGN_REG}
REGN regulator voltage (0
mA–60 mA)
V_DROPOUT
REGN voltage in drop out
mode
I_{REGN_LIM_Charging}
REGN current limit when
converter is enabled
C_REGN
REGN output capacitor
required for stability
C_VDDA
REGN output capacitor
required for stability
QUIESCENT CURRENT
I_{BAT_BATFET_ON}
System powered by battery.
BATFET on. I_SRN + I_SRP +
I_SW2+ I_BTST2 + I_SW1 + I_BTST1+
ACP ^{+ I}ACN ^{+ I}VBUS ^{+ I}VSYS
I_{AC_SW_LIGHT_buck}
Input current during PFM in
buck mode, no load, I_VBUS +
I_ACP + I_ACN + I_VSYS + I_SRP +
I_SRN + I_SW1 + I_BTST + I_SW2 +
I_BTST2
V_VBUS = 10 V
V_VBUS = 5 V, I_LOAD = 20 mA
V_VBUS = 10 V, force V_REGN =
4V
I_LOAD = 100 µA to 50 mA
I_LOAD = 100 µA to 50 mA
VBAT = 18 V, REG0x01[7] =
1, in low power mode
VBAT = 18 V, REG0x01[7] =
0, REG0x31[6:5] = 01,
REGN off
VBAT=18 V, REG0x01[7] =
0, REG0x31[6:5] = 10,
REGN off
VBAT = 18 V, REG0x01[7] =
0, REG0x31[4] = 0, REGN
on, EN_PSYS
VBAT = 18 V, REG0x01[7] =
0, REG0x = 1, REGN on
VIN = 20 V, VBAT = 12.6 V,
3 s, REG0x01[2] = 0;
MOSFET Qg = 4 nC
10
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MIN
–2%
–2.5%
–3%
0
2800
1300
300
4.48
–2%
–2%
–3%
5.7
3.8
50
2.2
1
TYP
18688
10880
4480
MAX
2%
2.5%
5%
UNIT
mV
mV
mV
3000
1500
500
20.032
12.032
5.056
81.28 mV
3200 mA
1700 mA
700 mA
20.8 V
V
2%
V
2%
V
3%
6
6.3 V
4.3
4.6 V
65
mA
µF
µF
22
45 µA
105
175 µA
60
90 µA
860
1150
µA
960
1250
2.2
mA
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