AP3606 datasheet(5/18 Pages) BCDSEMI

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Preliminary Datasheet

4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER

AP3606/AP3607

Dec. 2008 Rev. 1. 2

BCD Semiconductor Manufacturing Limited

Recommended Operating Conditions

Parameter

Symbol

Min

Max

Unit

Input Voltage

VIN

2.7

5.5

Operating Ambient Temperature

-40

ºC

Electrical Characteristics

VIN=3.6V, VEN=VIN, TA=25ºC, CIN=C1=C2=COUT=1µF, VF(forward voltage)=3.2V, unless otherwise noted.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Input Section

Input Voltage

VIN

ID=0mA to 80mA

2.7

5.5

Under Voltage Lockout Threshold

VIN Falling

2.2

Under Voltage Lockout Hysteresis

250

Supply Current

ICC

No Load

1.7

Shutdown Supply Current

ISHDN

VEN=GND

µA

Charge Pump Section

Switch Frequency

fOSC

VIN=3.0V, 1.5x Mode

0.7

1.3

MHz

AP3606

VD=3.2V,

ID1=ID2=ID3=ID4=20mA

1x Mode to 1.5x Mode Transition

Voltage (VIN Falling)

V1.5X

AP3607

VD=3.2V,

ID1=ID2=ID3=ID4=

ID5=ID6=20mA

3.5

3.6

AP3606

VD=3.2V,

ID1=ID2=ID3=ID4=20mA

1.5x Mode to 1x Mode Transition

Voltage (VIN Rising)

V1X

AP3607

VD=3.2V,

ID1=ID2=ID3=ID4=

ID5=ID6=20mA

3.7

3.8

Current Source Section

WLED Current

100% Setting,

3.0V≤VIN≤5.0V

TA=-40ºC to 85ºC

18.5

21.5

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