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LM3402HVMMX Arkusz danych(PDF) 3 Page - Texas Instruments |
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LM3402HVMMX Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 39 page SW 1 RON 2 VIN 3 BOOT 4 VCC 8 GND 7 DIM 6 CS 5 DAP SW 1 RON 2 VIN 3 BOOT 4 VCC 8 GND 7 DIM 6 CS 5 LM3402, LM3402HV www.ti.com SNVS450F – SEPTEMBER 2006 – REVISED OCTOBER 2015 5 Pin Configuration and Functions DGK Package DDA Package 8-Pin VSSOP 8-Pin HSOP Top View Top View Pin Functions PIN I/O DESCRIPTION NO. NAME 1 SW O Switch pin. Connect this pin to the output inductor and Schottky diode. 2 BOOT O MOSFET drive bootstrap pin. Connect a 10-nF ceramic capacitor from this pin to SW. Input for PWM dimming. Connect a logic-level PWM signal to this pin to enable and disable the power 3 DIM I MOSFET and reduce the average light output of the LED array. 4 GND — Ground pin. Connect this pin to system ground. Current sense feedback pin. Set the current through the LED array by connecting a resistor from this pin to 5 CS I ground. 6 RON I ON-time control pin. A resistor connected from this pin to VIN sets the regulator controlled ON-time. Output of the internal 7-V linear regulator. Bypass this pin to ground with a minimum 0.1-µF ceramic capacitor 7 VCC O with X5R or X7R dielectric. Input voltage pin. Nominal operating input range for this pin is 6 V to 42 V (LM3402) or 6 V to 75 V 8 VIN I (LM3402HV). DAP — Thermal Pad. Connect to ground. Place 4-6 vias from DAP to bottom layer ground plane. Copyright © 2006–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3402 LM3402HV |
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