BQ25700A Datasheet, PDF (11/82 Pages) Texas Instruments – SMBus Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

www.ti.com
Electrical Characteristics (continued)
over T_J = –40 to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
I_{AC_SW_LIGHT_boost}
I_{AC_SW_LIGHT_buckboost}
Input current during PFM in
boost mode, no load, I_VBUS +
I_ACP + I_ACN + I_VSYS + I_SRP +
I_SRN + I_SW1 + I_BTST2 + I_SW2 +
I_BTST2
Input current during PFM in
buck boost mode, no load,
I_VBUS + I_ACP + I_ACN + I_VSYS +
I_SRP + I_SRN + I_SW1 + I_BTST1 +
I_SW2 + I_BTST2
VIN = 5 V, VBAT = 8.4 V, 2
s, REG0x12[10] = 0;
MOSFET Qg = 4 nC
VIN = 12 V, VBAT = 12 V,
REG0x12[10] = 0; MOSFET
Qg = 4 nC
VBAT = 8.4 V, VBUS = 5 V,
800-kHz switching
frequency, MOSFET Qg = 4
nC
I_{OTG_STANDBY}
Quiescent current during PFM VBAT = 8.4 V, VBUS = 12
in OTG mode I_VBUS + I_ACP +
I_ACN + I_VSYS + I_SRP + I_SRN +
I_SW1 + I_BTST2 + I_SW2 + I_BTST2
V, 800-kHz switching
frequency, MOSFET Qg = 4
nC
VBAT = 8.4 V, VBUS = 20
V, 800-kHz switching
frequency, MOSFET Qg = 4
nC
V_{ACP/N_OP}
V_{IADPT_CLAMP}
I_IADPT
A_IADPT
Input common mode range
I_ADPT output clamp voltage
I_ADPT output current
Input current sensing gain
Voltage on ACP/ACN
V_(IADPT) / V_(ACP-ACN),
REG0x12[4] = 0
V_(IADPT) / V_(ACP-ACN),
REG0x12[4] = 1
V_{IADPT_ACC}
C_{IADPT_MAX}
Input current monitor
accuracy
Maximum output load
capacitance
V_(ACP-ACN) = 40.96 mV
V_(ACP-ACN) = 20.48 mV
V_(ACP-ACN) =10.24 mV
V_(ACP-ACN) = 5.12 mV
V_{SRP/N_OP}
V_{IBAT_CLAMP}
I_IBAT
A_IBAT
Battery common mode range Voltage on SRP/SRN
IBAT output clamp voltage
IBAT output current
Charge and discharge current
sensing gain on IBAT pin
V_(IBAT) / V_(SRN-SRP),
REG0x12[3] = 0,
V_(IBAT) / V_(SRN-SRP),
REG0x12[3] = 1,
I_{IBAT_CHG_ACC}
C_{IBAT_MAX}
Charge and discharge current
monitor accuracy on IBAT pin
Maximum output load
capacitance
V_(SRN-SRP) = 40.96 mV
V_(SRN-SRP) = 20.48 mV
V_(SRN-SRP) =10.24 mV
V_(SRN-SRP) = 5.12 mV
SYSTEM POWER SENSE AMPLIFIER
V_PSYS
I_PSYS
A_PSYS
PSYS output voltage range
PSYS output current
PSYS system gain
V_(PSYS) / (P_(IN)+ P_(BAT)),
REG0x30[9] = 1
Copyright © 2017, Texas Instruments Incorporated
bq25700A
SLUSCQ8 – MAY 2017
MIN
TYP
MAX UNIT
2.7
mA
2.4
mA
3
4.2
mA
3.8
3.1
–2%
–3%
–6%
–10%
2.5
3.05
–2%
–3%
–6%
–12%
0
0
6.2
26 V
3.2
3.3 V
1 mA
20
V/V
40
V/V
2%
3%
6%
10%
100 pF
18 V
3.2
3.3 V
1 mA
8
V/V
16
V/V
2%
4%
6%
12%
100 pF
3.3 V
160 µA
1
µA/W
Submit Documentation Feedback
11