ISL6253 查看數據表（PDF） - Intersil

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产品描述 (功能)

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ISL6253

Highly Integrated Battery Charger for Notebook Computers

Intersil 

ISL6253

Typical Operating Performance (Continued)

Circuit of Figure 18, VDCIN = 20V, 4S2P Li-Ion Battery, TA = 25°C, unless otherwise noted.

EN

5V/DIV

INDUCTOR

CURRENT

2A/DIV

BATTERY

VOLTAGE

2V/DIV

t: 0.5ms/DIV

FIGURE 7. CHARGE ENABLE AND SHUTDOWN

SYSTEM BUS

VOLTAGE

5V/DIV

INDUCTOR

CURRENT

2A/DIV

BGATE-CSIP

B2GVA/DTIEV-CSIP

2V/div

SGATE-CSIP

2SVG/ADTIVE-CSIP

2V/dDiIvV

t: 0.5ms/DIV

FIGURE 8. AC ADAPTER INSERTION

BGATE-CSIP

2V/DIV

LOAD CURRENT = 2A

SYSTEM BUS

VOLTAGE

5V/DIV

SGATE-CSIP

2V/DIV

INDUCTOR

CURRENT

2A/DIV

t: 5µs/DIV

FIGURE 9. AC ADAPTER REMOVAL

VPHASE

10V/DIV

VCSON

10V/DIV

INDUCTOR

CURRENT

2A/DIV

t: 20µs/DIV

FIGURE 11. BATTERY REMOVAL

7

INDUCTOR

CURRENT

2A/DIV

BATTERY

VOLTAGE

10V/DIV

ICOMP

VCOMP

2V/DIV

t: 1ms/DIV

FIGURE 10. BATTERY INSERTION

BATTERY

VOLTAGE

2V/DIV

INDUCTOR

CURRENT

1A/DIV

CHARGE

CURRENT

1A/DIV

t: 0.1ms/DIV

FIGURE 12. CHARGE MODE TRANSITION FROM TRICKLE

MODE TO CONSTANT CURRENT MODE

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