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LM3402MM 데이터시트(PDF) 2 Page - Texas Instruments |
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LM3402MM 데이터시트(HTML) 2 Page - Texas Instruments |
2 / 38 page SW 1 RON 2 VIN 3 BOOT 4 VCC 8 GND 7 DIM 6 CS 5 SW 1 RON 2 VIN 3 BOOT 4 VCC 8 GND 7 DIM 6 CS 5 DAP LM3402, LM3402HV SNVS450E – SEPTEMBER 2006 – REVISED MAY 2013 www.ti.com Connection Diagram Figure 1. 8-Lead Plastic VSSOP-8 Package Figure 2. 8-Lead Plastic SO PowerPAD-8 Package See Package Number DGK (S-PDSO-G8) See Package Number DDA0008B PIN DESCRIPTIONS Pin(s) Name Description Application Information 1 SW Switch pin Connect this pin to the output inductor and Schottky diode. 2 BOOT MOSFET drive bootstrap pin Connect a 10 nF ceramic capacitor from this pin to SW. 3 DIM Input for PWM dimming Connect a logic-level PWM signal to this pin to enable/disable the power FET and reduce the average light output of the LED array. 4 GND Ground pin Connect this pin to system ground. 5 CS Current sense feedback pin Set the current through the LED array by connecting a resistor from this pin to ground. 6 RON On-time control pin A resistor connected from this pin to VIN sets the regulator controlled on-time. 7 VCC Output of the internal 7V linear Bypass this pin to ground with a minimum 0.1 µF ceramic capacitor with X5R or regulator X7R dielectric. 8 VIN Input voltage pin Nominal operating input range is 6V to 42V (LM3402) or 6V to 75V (LM3402HV). DAP GND Thermal Pad Connect to ground. Place 4 to 6 vias from DAP to bottom layer ground plane. 2 Submit Documentation Feedback Copyright © 2006–2013, Texas Instruments Incorporated Product Folder Links: LM3402 LM3402HV |
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