tb62733ftg TOSHIBA Semiconductor CORPORATION, tb62733ftg Datasheet - Page 6

• Manufacturer Part Number: tb62733ftg
• Description: Charge Pump Type Dc/dc Converter For White Led Driver
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TOSHIBA
 
This datasheet is tentative, the values and contents are subject to change without any notice.
 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
                   
  2. Operate Vout1 only   
  3. Operate Vout2 only   

Feed Back Voltage Control
 1. Operate both Vout1 and Vout2
 ÞÚVout 1 operating
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.
                                            
 : Out1 is controlled by feed back terminal 1. (FB1)
 : Operation by feed back terminal 1 (FB1)
 : Operation by feed back terminal 2 (FB2)
Feed back
Feed back
Feed Back
Control 1
Control 2
Control 1
No feed back operation for Out2

Vout1
Vout2
Vout1
Vout2
FB1
FB2
FB1
FB2
C3
2.0ôF
C3
2.0ôF
C3
2.0ôF
C3
2.0ôF
27-Jul-04 (Rev1.7)TB62733FTG (Page. 6)
R
R
R
R
X
X
X
X
 TB62733FTG
LED ON
 LED ON
 LED ON
LED OFF