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TB62755FPG
LED driver for LCD backlighting
TB62755FPG TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB62755FPG Step Up Type DC-DC Converter for White LED
The TB62755FPG is a high efficient Step-Up Type DC-DC
Converter specially designed for constant current driving of White
LED.
This IC can drive 2-8 white LEDs connected series using a
Li-ion battery.
This IC contains N-ch MOSFET Transistor for Coil-Switching,
and LED current (IF) is set with an external resistor.
This IC is especially for driving back light white LEDs in LCD
of PDA, Cellular Phone, or Handy Terminal Equipment.
Features 2-8 white LEDs connected series (typ. 7LEDs) Variable LED current IF is set with a external resistor: 20 mA (typ.) @RSENS = 15 Ω Output power: Available for 800 mW LED loading (7LEDs, IF = Over 25 mA) High efficiency: 80% over (using recommended external parts) Output over voltage shutdown function
: Switching operation is shut downed when OVD terminal voltage is over 37 V (typ.). IC package: SON6-P-0202-0.50 Switching frequency: 1.0 MHz (typ.)
Pin Assignment (top view) Note: This IC could be destroyed in some case if amounted in 180° inverse direction.
Please be careful about IC direction in mounting.
Weight: 0.005 g (typ.)
VIN
OVD
SHDN
SW
GND
FB
1
3
2
VIN
OVD
SHDN
SW
GND
FB
1
3
2
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