LTC4010_15 Datasheet, PDF (18/24 Pages) Linear Technology – High Efficiency Standalone Nickel Battery Charger

LTC4010
Applications Information
FROM
ADAPTER
12V
20k
D1 D2 D3
R1 10k
20µF
LTC4010
V_CC
FAULT TGATE
CHRG
READY
D4
6V
Q1
TO
SYSTEM
LOAD
BGATE
49.9k
TIMER PGND
GND
CHEM
SENSE
BAT
0.1µF
INTV_DD
V_CDIV
V_CELL
V_TEMP
10k
33nF
6.8µH
0.05Ω
R2
20µF
68nF
NiMH PACK
WITH 10k NTC
(2AHr)
4010 F07
Figure 7. Full-Featured 2 Amp LTC4010 Application
FROM
ADAPTER
28V
V+
10µF
LTC4010
V_CC
FAULT TGATE
CHRG
READY
BGATE
PAUSE
FROM MCU
TIMER PGND
49.9k
SENSE
GND
CHEM BAT
10k ^R2
V_CDIV
V_CELL
33nF
INTV_DD V_TEMP
0.1µF
68nF
15µH
0.1Ω
10µF
TO
SYSTEM
LOAD
NiMH PACK
WITH 10k NTC
(2AHr)
4010 F08
Figure 8. LTC4010 with MCU Interface
4010fb
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