TENTATIVE
TOSHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB62777FNG
TB62777FNG
8-Channel Constant-Current LED Driver of the 3.3-V and 5-V Power Supply Voltage
Operation
The TB62777FNG is comprised of constant-current drivers
designed for LEDs and LED panel displays.
The regulated current sources are designed to provide a
constant current, which is adjustable through one external
resistor.
The TB62777FNG incorporates eight channels of shift registers,
latches, AND gates and constant-current outputs.
Fabricated using the Bi-CMOS process, the TB62777FNG
satisfies the system requirement of high-speed data transmission.
The TB62777FNG is RoHS.
Weight: 0.07 g (typ.)
Features
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Power supply voltages: V
DD
=
3.3 V/5 V
Output drive capability and output count: 50 mA
×
8 channels
Constant-current output range: 5 to 40 mA
Voltage applied to constant-current output terminals: 0.4 V (I
OUT
=
5 to 40 mA)
Designed for common-anode LEDs
Thermal shutdown (TSD)（MIN:150℃）
Power on reset (POR)
Input signal voltage level: 3.3-V and 5-V CMOS interfaces (Schmitt trigger input)
Maximum output voltage: 25V
Serial data transfer rate: 25 MHz (max) @cascade connection
Operating temperature range: T
opr
= −40
to 85°C
Package: SSOP-P-225-0.65B
Constant-current accuracy
Output Voltage
0.4 V to 4 V
Current accuracy
Between Channels
±3%
Current Accuracy
Between ICs
±6%
Output Current
15 mA
1
(Ver.0.2) 2008-1-23
MARKTECH [ MARKTECH CORPORATE ]
