tb62752afugel Marktech Optoelectronics, tb62752afugel Datasheet - Page 2

• Manufacturer Part Number: tb62752afugel
• Description: Step Up Type Dc/dc Converter For White Led
• Manufacturer: Marktech Optoelectronics

Block Diagram
Pin Function
Pin No.
1
2
3
4
5
6
VIN
2.2µF
Symbol
SHDN
GND
OVD
VIN
SW
VIN
FB
SHDN
Voltage-Input Terminal for IC-Enable / Disable LED-I
I
Over Voltage Detection Terminal.
IC Switching Operation is disabled with detection over voltage.
If the voltage returns to detection level or less, Operation is enabled again.
Supply Voltage Input Terminal. ( 2.8V to 5.5V)
Switch Terminal for DC/DC Converter. Nch MOSFET Built-In.
Ground Terminal.
LED I
F
(1.1MHz)
adjustment with PWM input signal is also available.
Reference
OSC
F
Setting Resister Connecting Terminal.
Shutdown
Function
Current
Control
Limit
PWM
22µH
2
Function Description
GND
Error
AMP.
TENTATIVE
SW
F
.
300mV
Over Voltage
Detection
OVD
FB
TB62752AFUG
@20mA
15Ω
2005-08-5
1.0µF