SP7616
Evaluation Board Manual
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 < 1碌A(chǔ)
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
schematic diagram is shown in Figure 1.
The SP7616 driver provides a simple solution for a
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.)
R2=46K
Figure 1. Evaluation Board Schematic Diagram for SP7616
Rev 07/28/06
SP7616 Evaluation Board Manual
Copyright 2006 Sipex Corporation
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