ACT4523 datasheet(12/15 Pages) ACTIVE-SEMI

tên linh kiện	ACT4523

Giải thích chi tiết về linh kiện	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

PDF	15 Pages

Scroll/Zoom	100%

nhà sản xuất	ACTIVE-SEMI [Active-Semi, Inc]

Trang chủ	http://www.active-semi.com

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12 / 15 page

ACT4523

Rev 7, 01-Aug-13

Innovative Power

- 12 -

www.active-semi.com

TYPICAL PERFORMANCE CHARACTERISTICS CONT’D

Start up into CC mode

SW vs. Output Voltage Ripples

Start up into CC mode

VOUT = 5V

RLORD = 1.5Ω

IISET = 2A

VIN = 12V

CH1: VOUT, 2V/div

CH2: IOUT, 1A/div

TIME: 200µs/div

CH1: VOUT, 2V/div

CH2: IOUT, 1A/div

TIME: 200µs/div

VIN = 12V

VOUT = 5V

IOUT = 2.1A

CH1

CH2

CH1: VOUT Ripple, 20mV/div

CH2: SW, 5V/div

TIME: 2µs/div

VOUT = 5V

RLORD = 1.5Ω

IISET = 2A

VIN = 24V

CH1

CH2

CH1

CH2

Shutdown Current vs. Input Voltage

160

145

130

115

100

175

Input Voltage (V)

Standby Current vs. Input Voltage

2.5

1.5

0.5

Input Voltage (V)

Reverse Leakage Current (VIN Floating)

160

120

VOUT (V)

(L = 33µH, CIN = 10µF, COUT = 47µF, Ta = 25°C, RCOMP = 8.2k, CCOMP1 = 2.2nF, CCOMP2 = NC)

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