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LM3401 Folha de dados(PDF) 2 Page - Texas Instruments

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Nome de Peças LM3401
Descrição Electrónicos  Hysteretic PFET Controller for High Power LED Drive
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM3401 Folha de dados(HTML) 2 Page - Texas Instruments

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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
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Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LM3401


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