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TB62731FUG Fiches technique(PDF) 2 Page - Marktech Corporate

No de pièce TB62731FUG
Description  Step-up DC-DC Converter for White LED Driver
Download  17 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

TB62731FUG Fiches technique(HTML) 2 Page - Marktech Corporate

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TB62731FUG
2004-09-14
2
Block Diagram
Pin Functions
No
Symbol
Function
1
K
Pin connecting LED cathode to resistor used to set current.
Feedback pin for voltage waveforms for controlling the LED constant current.
2, 5
GND
Ground pin for the logic
3
SHDN
IC enable pin.
Low, Standby Mode takes effect and pin A is turned off.
4
VCC
Input pin for power supply for operating the IC.
Operating voltage range: 3.0~5.5 V
6
A
DC-DC converter switch pin.
The switch is an N-channel MOSFET transistor.
Note: Connect both GND pins to ground.
SHDN
OSC
S
Q
R
Buffer
350 kHz
STB
A
VCC
REF
i (add)
i (sub)
A
K
GND
GND


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