TB62737FUG Toshiba, TB62737FUG Datasheet - Page 2

• Manufacturer Part Number: TB62737FUG
• Manufacturer: Toshiba

Specifications of TB62737FUG

• Package: SOT23-6
• Supply Voltage: 2.8V to 5.5V
• # Leds Supported: 2 to 6 LEDs in series
• Sw Frequency: 1.1MHz
• Led Current Accuracy: ±5.23% (max)
• Protection Feature: Output overvoltage protection
• Other Features & Functions: Analog dimming
• Rohs Compatible Product(s) (#): -

Block Diagram
Pin Assignment
Pin Function
Note: This IC could be destroyed in some case if amounted in 180° inverse direction.
Pin No.
1
2
3
4
5
6
Please be careful about IC direction in mounting.
SHDN
Symbol
SHDN
OVD
GND
V
SW
V
FB
IN
IN
SHDN
(top view)
OVD
V
3
1
IN
Voltage-input terminal for IC-enable/setting 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. (2.8 V to 5.5 V)
Switch terminal for DC-DC converter. Nch MOSFET built-in.
Ground terminal.
LED I
F
1
2
3
0 V to 0.5 V: Shutdown (PS) mode, IC operation is disabled.
1.0 V to 2.5 V: I
Over 2.5 V: I
adjustment with PWM input signal is also available.
Over voltage
detection
Week 1 to 26
F
mono multi
Reference
setting resistor connecting terminal.
detect
Level
F
CTL
AMP.
= 100%
F
= 25% to 100%
6
5
4
mono multi
Off time
control
FB
GND
SW
SW
4
2
Function Description
AMP.
AMP.
Error
SHDN
CTL
OVD
V
F
IN
.
OVD
1
2
3
2
Week 27 to 53
GND
5
6
FB
6
5
4
TB62737FUG
FB
GND
SW
2010-07-01