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LM3508 Datasheet(PDF) 2 Page - Texas Instruments |
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LM3508 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 20 page A1 A2 B1 B2 B3 C2 C1 C3 A3 LM3508 SNVS494C – APRIL 2007 – REVISED MAY 2013 www.ti.com Connection Diagram 9-Bump (Large) DSBGA (1.514mm x 1.514mm x 0.6mm) Package Number YZR000911A Top View PIN DESCRIPTIONS Pin Name Function A1 PGND Power Ground Connection. A2 SW Inductor connection and drain connection for both NMOS and PMOS power devices. A3 OUT Output capacitor connection, PMOS source connection for synchronous rectifier, and OVP sensing node. B1 ILED Regulated current source input. B2 DIM Current source modulation input. A logic low at DIM turns off the internal current source. A logic high turns the LEDs fully on (VSET=200mV). Apply a PWM signal at DIM for LED brightness control. B3 IN Input voltage connection. C1 SET Current sense connection and current source output. Connect a 1% resistor (RSET) from SET to PGND to set the maximum LED current (ILED = 200mV/RSET) . C2 EN Enable input. A logic low at EN turns off the LM3508. A logic high turns the device on. C3 AGND Analog ground. Connect AGND to PGND through a low impedance connection. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 2 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LM3508 |
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