EV4013-S-00A, HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER

NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.

Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS

products into any application. MPS will not assume any legal responsibility for any said applications.

EV4013-S-00A Rev. 1.0

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11/4/2014

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QUICK START GUIDE

1. Preset the LED string forward voltage to 60-150V, connect the anode of LED string to ‘LED+’

and the cathode of LED string to ‘LED-’;

2. Preset the PVIN supply voltage to 36-60V, turn off the power supply, connect the power supply

to ‘PVIN’;

3. Preset the VIN supply voltage 8-26V, turn off the power supply, connect the power supply to

‘VIN’;

4. Connect the ‘EN’ connector to enable signal; the high level of EN signal is at the range of 1.5V-

5V, the low level is at the range of 0-0.8V;

5. Connect the ‘PWM’ connector to the PWM dimming signal; the high level of PWM signal is in

the range of 1.5V-5V, and the low level is in the range of 0-0.8V;

6. Connect the ‘ADIM’ connector to the DC input analog dimming signal; set the analog dimming

signal 2.34V for full scale LED current;

7. Turn on PVIN supply, turn on VIN supply, set PWM signal and ADIM signal to high level; turn on

EN signal, the LED string should be ignited.

8. To demo the PWM dimming function: connect the ‘PWM’ connector to an PWM signal; the

frequency of the PWM signal is in the range of 100Hz to 2kHz, the high level of the PWM signal

is 1.5V-5V and low level is 0-0.8V. Adjust the duty of the PWM signal; the LED current will follow

the duty of the PWM dimming signal.

9. To demo the DC-input analog dimming, ramp down the voltage of ADIM signal from 2.34V to

minimum (0V), the LED current amplitude will ramp down from full scale to minimum. The

“ADIM_P” connector should be left open here.

10. To demo pulse-input analog dimming; leave the ‘ADIM’ connector open, connect ‘ADIM_P’

connector with a pulse signal, the frequency of the pulse signal higher than 10kHz, the high

level higher than 1.5V and low level lower than 0.8V; Adjust the duty of the pulse signal from

100% to minimum, the LED current amplitude will decrease from full scale to minimum.