ACT4515_12 datasheet(14/16 Pages) ACTIVE-SEMI

Teilenummer	ACT4515

Bauteilbeschribung	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

PDF	16 Pages

Scroll/Zoom	100%

Hersteller	ACTIVE-SEMI [Active-Semi, Inc]

Direct Link	http://www.active-semi.com

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14 / 16 page

ACT4515

Rev 6, 14-Nov-12

Innovative Power

- 14 -

www.active-semi.com

SW vs. Output Voltage Ripples

TYPICAL PERFORMANCE CHARACTERISTICS CONT’D

(Circuit of Figure 7, IISET = 0.9A, L = 82µH, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified.)

Start up with EN

Load Step Waveforms

Short Circuit

VIN = 24V

V0UT = 5V

I0UT = 0.9A

CH1

CH2

CH1: SW, 10V/div

CH2: VRIPPLE, 50mV/div

TIME: 2µs/div

VIN = 12V

V0UT = 5V

I0UT = 0.9A

CH1

CH2

CH1: EN, 1V/div

CH2: VOUT, 1V/div

TIME: 10ms/div

Start up with EN

CH1

CH2

CH1: EN, 1V/div

CH2: VOUT, 1V/div

TIME: 10ms/div

VIN = 12V

V0UT = 5V

IISET = 0.9A

CH1

CH2

CH1: IOUT, 500mA/div

CH2: VOUT, 500mV/div

TIME: 100μs/div

Load Step Waveforms

VIN = 24V

V0UT = 5V

IISET = 0.9A

CH1

CH2

CH1: IOUT, 500mA/div

CH2: VOUT, 500mV/div

TIME: 100μs/div

VIN = 12V

V0UT = 5V

IISET = 0.9A

CH1

CH2

CH1: VOUT, 2V/div

CH2: IOUT, 1A/div

CH3: SW

TIME: 20µs/div

VIN = 24V

V0UT = 5V

IISET = 0.9A

CH3

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