BQ24707 Datasheet, PDF (8/36 Pages) Texas Instruments – 1-4 Cell Li+ Battery SMBus Charge Controller With Independent Comparator and Advanced Circuit Protection

bq24707
bq24707A
SLUSA78B – JULY 2010 – REVISED MARCH 2011
TYPICAL CHARACTERISTICS
Table 1. Table of Graphs
VCC, ACDET, REGN and ACOK Power up (bq24707)
Charge Enable by ILIM
Current Soft-start
Charge Disable by ILIM
Continuous Conduction Mode Switching Waveforms
Cycle-by-Cycle Synchronous to Non-synchronous
100% Duty and Refresh Pulse
System Load Transient (Input DPM)
Battery Insertion
Battery to Ground Short Protection
Battery to Ground Short Transition
Efficiency vs Output Current
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FIGURE NO.
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
CH1: VCC, 10V/div, CH2: ACDET, 2V/div, CH3: ACOK, 5V/div,
CH4: REGN, 5V/div, 200ms/div
Figure 3. VCC, ACDET, REGN and ACOK Power Up
(bq24707)
CH2: ILIM, 1V/div, CH4: inductor current, 1A/div, 10ms/div
Figure 4. Charge Enable by ILIM
CH1: PHASE, 10V/div, CH2: Vin, 10V/div, CH3: LODRV, 5V/div,
CH4: inductor current, 2A/div, 2ms/div
Figure 5. Current Soft-Start
CH2: ILIM, 1V/div, CH4: inductor current, 1A/div, 4us/div
Figure 6. Charge Disable by ILIM
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