ACT8712QLEHA-T View Datasheet(PDF) - Active-Semi, Inc

Part Name

Description

MFG CO.

ACT8712QLEHA-T

Four Channel Integrated Power Management IC for Handheld Portable Equipment

Active-Semi, Inc 

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ACT8712

Rev0, 25-Feb-08

WLED BIAS DC/DC CONVERTER

ELECTRICAL CHARACTERISTICS

(VVSYS = 3.6V, TA = 25°C, unless otherwise specified.)

PARAMETER

Input Voltage Rangec

TEST CONDITIONS

UVLO Voltage Threshold

VSYS Voltage Rising

UVLO Voltage Hysteresis

VSYS Voltage Falling

Supply Current

FB3 Feedback Voltage

ON2 = VIN, VFB3 = 0.3V

ON2 = GA, ILOAD = 0mA

FB3 Input Current

Oscillator Frequency

Minimum On-Time

Maximum Duty Cycle

Switch Current Limit

Duty = 83%, L = 22µH, COUT3 = 4.7µF

Switch On-Resistance

ISW3 = 100mA

Switch Leakage Current

Over-Voltage Threshold

VSW3 = 30V, ON2 = GA

REG3/VSET[ ] = [111111]

MIN

2

2.9

235

1.35

87

500

27.5

TYP

3

80

75

0.1

255

50

1.6

100

92

750

0.67

28.5

MAX

5.5

3.1

150

1

275

1.85

1.1

10

29.5

UNIT

V

V

mV

µA

µA

mV

nA

MHz

ns

%

mA

Ω

µA

V

c: As long as VSYS is within the VSYS operating range, this spec refers to the voltage range of the input that the inductor is connected

to.

Innovative Products. Active Solutions.

ActivePMUTM is a trademark of Active-Semi.

I2CTM is a trademark of Philips Electronics.

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Copyright © 2008 Active-Semi, Inc.

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