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LM3402HVMRX 데이터시트(PDF) 3 Page - Texas Instruments

부품명 LM3402HVMRX
상세설명  0.5A Constant Current Buck Regulator
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
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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
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Product Folder Links: LM3402 LM3402HV


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