BQ24080-Q1 Datasheet, PDF (7/28 Pages) Texas Instruments – Li-Ion and Li-Pol Automotive Charger

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7.7 Typical Characteristics
450
I_O(OUT) = 1000 mA
400
350
I_O(OUT) = 750 mA
300
250
I_O(OUT) = 500 mA
200
150
I_O(OUT) = 250 mA
100
50
0
0
50
100
150
T_J - Junction Temperature - ^oC
Figure 1. Dropout Voltage vs Junction Temperature
bq24080-Q1, bq24081-Q1
SLUSCB6 – MAY 2015
Figure 2. V_IN Hot-Plug Power-Up Sequence
Figure 3. Charge Enable Power-Up Sequence
(CE = High-to-Low)
Figure 4. Battery Hot-Plug During Charging Phase
No battery – In termination deglitch prior to STAT1 going high. V_OUT (V_BAT) cycling between charge and done prior to screen capture
Stat1 goes high – In done state
2-V battery is inserted during the charge done state.
Charging is initiated – STAT1 goes low and charge current is applied.
Battery is removed – V_OUT goes into regulation, I_OUT goes to zero, and termination deglitch timer starts running (same as state 1).
Deglitch timer expires – charge done is declared.
Figure 5. Battery Hot-Plug and Removal Power Sequence
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