BQ2004 Datasheet, PDF (4/15 Pages) Texas Instruments – Fast-Charge IC

bq2004
Dis-
Charge
charge ^Pending*
(Optional) (Pulse-Trickle)
Fast Charging
DIS
Switch-mode
MOD Configuration
or
External
MOD Regulation
(SNS Grounded)
Mode 1, LED2 Status Output
Top-Off
(Optional)
260 s
2080 s
260 s
2080 s
Mode 1, LED1 Status Output
Mode 2, LED2 Status Output
Mode 2, LED1 Status Output
Pulse-Trickle
260 s
Note*
260 s
Note*
Mode 3, LED2 Status Output
Mode 3, LED1 Status Output
Battery within temperature/voltage limits.
Battery discharged to 0.4 _* VCC. Battery outside
temperature/voltage limits.
Discharge-Before-Charge started
*See Table 3 for pulse-trickle period.
Figure 2. Charge Cycle Phases
TD200401a.eps
4