ACT4455 データシートの表示（PDF） - Active-Semi, Inc
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ACT4455 Datasheet PDF : 14 Pages
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ACT4455
Rev 2, 21-Nov-12
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Circuit of Figure 7, RCS1 = RCS2 = 50mΩ, L = 18µH, CIN = 150µF, COUT = 680µF, TA = 25°C, unless otherwise specified.)
Load Step Waveforms
VIN = 12V
IOUT1 = 0-2.1A
IOUT2 = 2.1A
CH1
CH2
CH1: VOUT Ripper, 200mV/div
CH2: IOUT, 2A/div
TIME: 400µs/div
CH1
CH2
Short Circuit
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
CH3
CH1: VOUT, 5V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 400µs/div
Short Circuit Recovery
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
CH1
CH2
CH2
CH1: VOUT, 2V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 1ms/div
Innovative PowerTM
CH1
CH2
CH3
Short Circuit
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 0A
CH1: VOUT, 5V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 400µs/div
Short Circuit Recovery
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 0A
CH1
CH2
CH3
CH1: VOUT, 2V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 1ms/div
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
CH1
Hiccup Mode
CH2
- 13 -
CH1: VOUT, 5V/div
CH2: SW, 5V/div
TIME: 1s/div
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