A708 datasheet(2/8 Pages) ADDTEK

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A708

DD076_A

AUGUST 2007

ABSOLUTE MAXIMUM RATINGS

(Note)

Input Voltage, VDD

-0.3V to 13.2V

Output Sustaining Voltage, VLEDn

-0.3V to 17V

Voltage at all other pins

-0.3V to 12V

Maximum Junction Temperature, TJ

150

Storage Temperature Range

-40

OC to 150°C

Lead Temperature (soldering, 10 seconds)

260

Note:

Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.

Currents are positive into, negative out of the specified terminal.

POWER DISSIPATION TABLE

Package

(°C / W )

Derating factor ( mW/°C )

TA≧25

TA≦25°C

Power rating (mW)

TA=70 °C

Power rating (mW)

TA= 85°C

Power rating (mW)

220

4.5

568

363

295

Note :

Junction Temperature Calculation:

J = T

A + (PD x θJA).

D: Power Dissipation, T

A: Ambient temperature, θJA: Thermal Resistance-Junction to Ambient

The

JA numbers are guidelines for the thermal performance of the device/PC-board system.

All of the above assume no ambient airflow.

BLOCK DIAGRAM

VDDI

VDD

GND

LED1

Driving

Stage

LED2

Driving

Stage

LED3

Driving

Stage

Control

Logic

A708

Reference

Current

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