tb62778fng Marktech Optoelectronics, tb62778fng Datasheet - Page 4

• Manufacturer Part Number: tb62778fng
• Description: 8-channel Constant-current Led Driver Of The 3.3-v And 5-v Power Supply Voltage Operation
• Manufacturer: Marktech Optoelectronics

Terminal Description
Equivalent Circuits for Inputs and Outputs
Pin No.
GND
1.
3. CLOCK and SERIAL-IN Terminals
5.
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
SERIAL-IN
ENABLE Terminal
OUT0 to OUT7 Terminals
ENABLE
CLOCK,
SERIAL-OUT
GND
GND
SERIAL-IN
V
V
Pin Name
ENABLE
CLOCK
LATCH
DD
DD
R-EXT
OUT0
OUT1
OUT
OUT3
OUT4
OUT5
OUT6
OUT7
GND
V
DD
2
GND terminal
Serial data input terminal
Serial clock input terminal
Latch input terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Constant-current output terminal
Output enable input terminal
All outputs ( OUT0 to OUT7 ) are disabled when the ENABLE terminal is driven High, and
enabled when it is driven Low.
Serial data output terminal. Serial data is clocked out on the falling edge of CLOCK.
An external resistor is connected between this terminal and ground. OUT0 to OUT7 are adjusted
to the same current value.
Power supply terminal
R (UP)
OUT0 to OUT7
TENTATIVE
4
2.
4. SERIAL-OUT Terminal
GND
V
DD
Function
LATCH Terminal
LATCH
GND
V
DD
R (DOWN)
(Ver.0.0) 08-02-07
TB62778FNG
SERIAL-OUT