BQ24297 Datasheet, PDF (8/48 Pages) Texas Instruments – I2C Controlled 3A Single Cell USB Charger

bq24296
bq24297
SLUSBP6A – SEPTEMBER 2013 – REVISED OCTOBER 2013
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THERMAL INFORMATION
THERMAL METRIC⁽¹⁾
θ_JA
θ_JCtop
θ_JB
ψ_JT
ψ_JB
θ_JCbot
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
RGE PACKAGE
24-PIN
32.2
29.8
9.1
0.3
9.1
2.2
UNITS
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
space
ELECTRICAL CHARACTERISTICS
V_{VBUS_UVLOZ} < V_VBUS < V_ACOV and V_VBUS > V_BAT + V_SLEEP, T_J = –40°C to 125°C and T_J = 25°C for typical values unless other
noted.
PARAMETER
QUIESCENT CURRENTS
I_BAT
Battery discharge current (BAT, SW, SYS)
I_VBUS
Input supply current (VBUS)
I_BOOST
Battery Discharge Current in boost mode
VBUS/BAT POWER UP
V_{VBUS_OP}
V_{VBUS_UVLOZ}
VBUS operating range
VBUS for active I²C, no battery
V_SLEEP
V_SLEEPZ
V_ACOV
V_{ACOV_HYST}
V_{BAT_UVLOZ}
Sleep mode falling threshold
Sleep mode rising threshold
VBUS over-voltage rising threshold
VBUS Over-Voltage Falling Hysteresis
Battery for active I²C, no VBUS
V_{BAT_DPL}
V_{BAT_DPL_HY}
V_VBUSMIN
I_BADSRC
t_BADSRC
Battery depletion threshold
Battery depletion rising hysteresis
Bad adapter detection threshold
Bad adapter detection current source
Bad source detection duration
TEST CONDITIONS
V_VBUS < V_UVLO, VBAT = 4.2 V, leakage between
BAT and VBUS
High-Z Mode, or no VBUS, BATFET disabled
(REG07[5] = 1), –40°C – 85°C
High-Z Mode, or no VBUS, BATFET enabled
(REG07[5] = 0), –40°C – 85°C
V_VBUS = 5 V, High-Z mode, No battery
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter not
switching
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter switching,
V_BAT=3.2V, I_SYS=0A
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter switching,
charge disable, V_BAT=3.8V, I_SYS=100µA
VBAT=4.2V, Boost mode, I_VBUS = 0A, converter
switching
V_VBUS rising
V_VBUS falling, V_VBUS-VBAT
V_VBUS rising, V_VBUS-VBAT
V_VBUS rising
V_VBUS falling
V_BAT rising
V_BAT falling
V_BAT rising
V_VBUS falling
MIN TYP
MAX UNITS
5
µA
16
20 µA
32
55 µA
15
30 µA
1.5
3 mA
4
mA
3.5
mA
3.5
mA
3.9
3.6
35
80
170
250
6.2
250
2.3
2.4
200
3.8
30
30
6.2 V
V
120 mV
350 mV
6.6 V
mV
V
2.6 V
mV
V
mA
ms
8
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