MP3394—4-STRING, MAX 200mA/STRING WHITE LED DRIVER

MP3394 Rev. 1.07

www.MonolithicPower.com

6

3/21/2013

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TSSOP16EP

&SOIC16

SOIC20

Name Description

13

17

ISENSE

Current Sense Input. During normal operation, this pin senses the voltage

across the external inductor current sensing resistor for peak current mode

control and also to limit the inductor current during every switching cycle. If

this pin is not used in extending application with other master MP3394, tie

this pin to GND, do not let this pin floating.

14

18

GATE

Step-up Converter Power Switch Gate Output. This pin drives the external

power N-MOS device.

15

19

VIN

Supply Input. VIN supplies the power to the chip, as well as the step-up

converter switch. Drive VIN with a 5V to 28V power source. Must be locally

bypassed.

16

20

VCC

The Internal 6V Linear Regulator Output. VCC provides power supply for the

external MOSFET switch gate driver and the internal control circuitry. Bypass

VCC to GND with a ceramic capacitor.

4, 6,

15, 16

NC

No Connect.