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TB62750FTG Datasheet(Fiches technique) 4 Page - Marktech Corporate

Numéro de pièce TB62750FTG
Description  Step Up Type DC-DC Converter for White LED
Télécharger  10 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

TB62750FTG Datasheet(HTML) 4 Page - Marktech Corporate

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TB62750FTG
28-Apr-05 (Rev0.2) TB627350FTG (Page. /11)
4
Tentative
Explanation of the Terminal
No.
Symbol
Function
1
K3
Connected to the LED cathode.
2
RSENS3
Connected to the current-setting resistor: R1 for the flash.
3
K2
Connected to the LED cathode.
4
RSENS2
Connected to the current-setting resistor: R1 for the flash.
5
K1
Connected to the LED cathode.
6
RSENS1
Connected to the current-setting resistor: R1 for the flash.
7
FB+
8
FB-
Detecting the voltage of the current-setting resistor: R1 for the flash. It can change
the light-mode-current with the resistor: R3 which is connected to FB+.
9
NC
No Connect
10
NC
No Connect
11
IL
Connected to the ILED setting resistor: R2 in the light mode.
The light-mode-current is changed depending on the setting ratio of R2 and R3.
12
SS
Setting the constant to limit the current when DC-DC operation starts.
The rising time is changed depending on the constant of the condenser.
13
PGND3
Ground terminal for the power device.
14
SW3
Switching the DC-DC converter. Nch MOSFET is built-in.
15
PGND2
Ground terminal for the power device.
16
SW2
Switching the DC-DC converter. Nch MOSFET is built-in.
17
PGND1
Ground terminal for the power device.
18
SW1
Switching the DC-DC converter. Nch MOSFET is built-in.
19
OVP
Detecting the over-voltage.
20
EN2
Inputting the logic signals which set the modes.
"ON"
:Flash mode
"OFF" :Lighting mode
21
EN1
Inputting the logic signals which set the modes.
"ON" :DC-DC operation
"OFF" :Stop
22
AGND
Ground terminal for analog.
23
VIN
Inputting the power supply voltage to the IC. The operating voltage is 2.8 to 5.5V.
24
NC
No Connect


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