Rev 07/28/06

SP7616 Evaluation Board Manual

Copyright 2006 Sipex Corporation

LED Drivers for parallel connected LED

Ultra Low Dropout Voltage of 150mV

No EMI, no switching noise

Integrated current matching

PWM and Analog brightness control

Enable/Shutdown control

Shutdown current < 1µA

SP7616 Eval Board Top Side (not to scale)

DESCRIPTION AND BOARD SCHEMATIC

This Evaluation Board is designed to help the user evaluate performance of the SP7616 for use

as a LED Driver. The evaluation board is a completely assembled and tested surface mount

board which provides easy probe access points to all inputs and outputs so that the user can

quickly connect and measure electrical characteristics and waveforms. The Evaluation Board

matched current source for any color LED. The current in the LEDs is programmed by an

external resistor. The SP7616 is capable of driving up to four LED chains from a source of up to

30Vin.

The evaluation board contains one SP7616 driver, and four locations to solder the led chains for

ease of use. The user will need to supply an active high PWM signal or an external power

supply with at least 2.5V volts to turn the Sp7616 driver on. (Note R2 on the PCB is referred to

as Rset in the data sheet.)

Figure 1. Evaluation Board Schematic Diagram for SP7616

SP7616

Evaluation Board Manual

R2=46K