A708 datasheet(3/8 Pages) ADDTEK

3 / 8 page

A708

DD076_A

AUGUST 2007

PIN DESCRIPTION

Pin Name

Pin Function

LED1 ~ LED3

Output pins; connect to LED’s cathode.

Enable control pin. Pulling this pin high will enable the device. Pulling this pin to GND

will disable the device.

VDD

Power supply

GND

Ground

PGND

Power ground

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Min

Typ

Max

Unit

Supply Voltage

VDD

2.7

Output Sink current

ILED

Operating free-air temperature range

-40

+85

°C

ELECTRICAL CHARACTERISTICS

VDD=3.7V, VIH=3.3V, VIL=GND, No Load, TA=25°C, (Unless otherwise noted)

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Apply

“Low” Input Voltage

VIL

0.4

“High” Input Voltage

VIH

1.7

VDD

“Low” Input Current

IIL

-5.0

+5.0

µA

“High” Input Current

IIH

-5.0

+5.0

µA

LED Dropout Voltage

VLEDL

Note 1

Rank A

LED Sink Current

ILED

LED Sink Current Deviation

△I

LEDn

Note 2

±3

Load Regulation

VLEDn=0.15~3V

±3

Line Regulation

VDD=2.7~12V, VLEDn=0.15V

±3

LEDn

Supply Current

IDD

300

600

Standby Supply Current

IDDSTBY

0.1

VDD

Note 1: LED Dropout Voltage: 90% × ILEDn @ VLEDn=150mV

Note 2: ILEDn(max)-ILEDn(average) and ILEDn(average)-ILEDn(min)

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