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LM3401 Folha de dados(PDF) 2 Page - Texas Instruments |
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LM3401 Folha de dados(HTML) 2 Page - Texas Instruments |
2 / 27 page DIM SNS HYS VIN HG GND ILIM CS 1 2 3 4 8 7 6 5 LM3401 SNVS516C – AUGUST 2007 – REVISED MAY 2013 www.ti.com 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. CONNECTION DIAGRAM Figure 1. Top View 8-Lead VSSOP See DGK Package PIN DESCRIPTIONS Pin # Pin Description Name 1 CS Current sense pin. Connect to the PFET drain 2 DIM Dimming input pin. When DIM is low, the HG drive is off. Can be connected to a logic level PWM signal 3 SNS Current feedback pin – to LED cathode. Connect a resistor from this pin to ground to set the DC LED current 4 HYS Hysteresis adjust pin. Connect a resistor from this pin to GND to set the hysteresis window 5 GND Ground pin 6 HG Gate drive output. Connect to the PFET gate 7 VIN Power supply input 8 ILIM Current limit adjust pin. Connect a resistor from this pin to the PFET source to set the current limit threshold 2 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LM3401 |
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