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TB62733FTG Fiches technique(PDF) 6 Page - Toshiba Semiconductor

No de pièce TB62733FTG
Description  Charge Pump type DC/DC Converter for White LED Driver
Download  12 Pages
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Fabricant  TOSHIBA [Toshiba Semiconductor]
Site Internet  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TB62733FTG Fiches technique(HTML) 6 Page - Toshiba Semiconductor

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TOSHIBA
TB62733FTG
This datasheet is tentative, the values and contents are subject to change without any notice.
27-Jul-04 (Rev1.7) TB62733FTG (Page. 6)
Feed Back Voltage Control
In case of output capacitance C3 is connected to Vout0, capacitance C3 connecting to Vout1 and Vout2
May be omitted.
However, if you have to care about output ripple, it is better C3 connect to each Vout1and Vout2.
This device has a capability of variable control for feed back voltage by using two input such as SP1 and SP2.
Two kind of feed back terminal exist and the following feed back control is performed.
1. Operating both Vout1 and Vout2
: Out1 is controlled by feed back terminal 1. (FB1)
No feed back operation for Out2
2. Operate Vout1 only
: Operation by feed back terminal 1 (FB1)
3. Operate Vout2 only
: Operation by feed back terminal 2 (FB2)
FB1
C3
2.0μF
Vout1
RX
FB2
C3
2.0μF
Vout2
RX
Feed back
Control 1
1. Operate both Vout1 and Vout2
FB1
C3
2.0μF
Vout1
RX
FB2
C3
2.0μF
Vout2
RX
Feed Back
Control 1
2.
Vout 1 operating
LED ON
LED ON
LED ON
Feed back
Control 2
LED OFF


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