BQ24196_17 Datasheet, PDF (6/50 Pages) Texas Instruments – I2C Controlled 2.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

bq24196
SLUSB98A – OCTOBER 2012 – REVISED DECEMBER 2014
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7.3 Recommended Operating Conditions
V_IN
I_IN
I_SYS
V_BAT
I_BAT
T_A
Input voltage
Input current
Output current (SYS)
Battery voltage
Fast charging current
Discharging current with internal MOSFET
Operating free-air temperature range
MIN
MAX
UNIT
3.9
17 ⁽¹⁾
V
3
A
2.5
A
4.4
V
2.5
A
6 (continuous)
9 (peak)
A
(up to 1 sec
duration)
–40
85
°C
(1) The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the BTST or SW pins. A tight
layout minimizes switching noise.
7.4 Thermal Information
THERMAL METRIC⁽¹⁾
bq24196
RGE (24 PIN)
UNIT
R_θJA
R_θJCtop
R_θJB
ψ_JT
ψ_JB
R_θJCbot
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
32.2
29.8
9.1
°C/W
0.3
9.1
2.2
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
7.5 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_OTGBOOST
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
TEST CONDITIONS
MIN TYP
MAX UNIT
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 to 85°C
High-Z Mode, or no VBUS, REG07[5] = 0, –40°C
to 85°C
V_VBUS = 5 V, High-Z mode
V_VBUS = 17 V, High-Z mode
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter not
switching
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter
switching, V_BAT = 3.2 V, I_SYS = 0 A
V_VBUS > V_UVLO, V_VBUS > V_BAT, converter
switching, V_BAT = 3.8 V, I_SYS = 0 A
VBAT = 4.2 V, Boost mode, I_VBUS = 0 A,
converter switching
5 µA
12
20 µA
32
55 µA
15
30 µA
30
50 µA
1.5
3 mA
4
mA
15
mA
4
mA
V_VBUS rising
V_VBUS falling, V_VBUS-VBAT
V_VBUS rising, V_VBUS-VBAT
V_VBUS rising
V_VBUS falling
V_BAT rising
3.9
3.6
35 80
170 250
17.4 18
700
2.3
17
V
V
120 mV
350 mV
V
mV
V
6
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