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BQ24153 Просмотр технического описания (PDF) - Texas Instruments

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BQ24153 Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support TI
Texas Instruments TI
BQ24153 Datasheet PDF : 41 Pages
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www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS
bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
Using circuit shown in Figure 1, TA = 25°C, unless otherwise specified.
ADAPTER INSERTION
CYCLE BY CYCLE CURRENT LIMITING IN CHARGE MODE
VBUS
2 V/div
VSW
2 V/div
VSW
5 V/div
IBAT
0.5 A/div
10 ms/div
Figure 3. VBUS = 0-5V, Iin_limit = 500mA, Voreg = 4.2V
VBAT = 3.5V, Ichg = 550mA, 32S mode
BATTERY INSERTION/REMOVAL
VBAT
2 V/div
IL
0.5 A/div
2 ms/div
Figure 4. VBUS = 5V, VBAT = 3.5V
Charge Mode Overload Operation
PWM CHARGING WAVEFORMS
VSW
2 V/div
VSW
5 V/div
IBAT
0.5 A/div
Battery Inserted
Battery Removed
1 S/div
Figure 5. VBUS = 5 V, VBAT = 3.4V, Iin_limit = 500 mA (32s
Mode)
BATTERY DETECTION AT POWER UP (bq24153/6)
VBUS
5 V/div
IL
0.5 A/div
100 nS/div
Figure 6. VBUS = 5 V, VBAT = 2.6 V, Voreg = 4.2 V, Ichg = 1550
mA
BATTERY DETECTION AT POWER UP (bq24158)
VBUS
4 V/div
VBAT
2 V/div
IBUS
50 mA/div
100 mS/div
Figure 7. VBUS=5V, No battery connected
VBAT
2 V/div
VSW
5 V/div
IBUS
100 mA/div
100 mS/div
Figure 8. VBUS=5V, No battery connected
Copyright © 2010, Texas Instruments Incorporated
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