ISL6252 Datasheet, PDF (10/25 Pages) Intersil Corporation – Highly Integrated Battery Charger Controller for Notebook Computers

ISL6252, ISL6252A
Typical Operating Performance DCIN = 20V, 4S2P Li-Battery, T_A = +25°C, Unless Otherwise Noted. (Continued)
CSON
5V/div
EN
5V/div
INDUCTOR
CURRENT
2A/div
CHARGE
CURRENT
2A/div
FIGURE 10. CHARGE ENABLE AND SHUTDOWN
BBAATTTTEERYRY
IINNSSEERRTITOINON
B^BA^ATT^TE^TR^EY^RY
R^RE^EM^MOV^OA^VL^AL
INDUCTOR
CURRENT
2A/div
CSON
10V/div
VCOMP
VCOMP
IC_IO_CM_OP_MP
VCOMP
2V/div
ICOMP
2V/div
FIGURE 11. BATTERY INSERTION AND REMOVAL
CHLIM==0.02.V2V
CSON==8V8V
PHASE
10V/div
INDUCTOR
CURRENT
1A/div
UGATE
5V/div
FIGURE 12. SWITCHING WAVEFORMS AT DIODE EMULATION
PHASE
10V/div
UGATE
2V/div
LGATE
2V/div
FIGURE 13. SWITCHING WAVEFORMS IN CC MODE
AADDAAPPTTEERRRREEMMOOVVAALL
SGATE-CSIP
2V/div
SYSTEM BUS
VOLTAGE
10V/div
BGATE-CSIP
2V/div
INDUCTOR
CURRENT
2A/div
FIGURE 14. AC ADAPTER REMOVAL
BGATE-CSIP
2V/div
SYSTEM BUS
VOLTAGE
10V/div
AADDAAPPTTEERRININSSEERRTTIOIONN
SGATE-CSIP
2V/div
INDUCTOR
CURRENT
2A/div
FIGURE 15. AC ADAPTER INSERTION
10
FN6498.3
August 25, 2010