isl88731c Intersil Corporation, isl88731c Datasheet - Page 10

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isl88731c

Manufacturer Part Number
isl88731c
Description
Smbus Level 2 Battery Charger
Manufacturer
Intersil Corporation
Datasheet

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Typical Operating Performance
FIGURE 11. SWITCHING WAVEFORMS AT DIODE
FIGURE 15. LOAD TRANSIENT RESPONSE
FIGURE 13. BATTERY REMOVAL
EMULATION
PHASE
ADAPTER
CURRENT
10
UGATE
CSON/
V BATTERY
BATTERY
CURRENT
INDUCTOR
CURRENT
LGATE
BATTERY
VOLTAGE
CHARGE
CURRENT
SYSTEM
LOAD
ISL88731C
DCIN = 20V, 3S2P Li-Battery, T
noted. (Continued)
FIGURE 16. EFFICIENCY vs CHARGE CURRENT AND
FIGURE 12. SWITCHING WAVEFORMS IN CC MODE
100
95
90
85
80
BATTERY
CURRENT
0.0
FIGURE 14. BATTERY INSERTION
1.0
BATTERY VOLTAGE
PHASE
2.0
4.2V BATTERY
8.4V BATTERY
UGATE
12.6V BATTERY
INDUCTOR
CURRENT
3.0
16.8V BATTERY
A
= +25°C, unless otherwise
I
OUT
4.0
(A)
LGATE
5.0
CSON/
V BATTERY
6.0
September 9, 2010
7.0
FN6978.1
8.0

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