TB62777FNG/FG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB62777FNG, TB62777FG
8-Channel Constant-Current LED Driver of the 3.3-V and 5-V Power Supply Voltage
Operation
TB62777FNG
TB62777FG
Weight: SSOP16-P-225-0.65B 0.07 g (typ.)
SSOP16-P-225-1.00A 0.14 g
(typ.)
The TB62777FNG/FG 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/FG incorporates eight channels of shift
registers, latches, AND gates and constant-current outputs.
Fabricated using the Bi-CMOS process, the TB62777FNG/FG is
capable of high-speed data transfers.
The TB62777FNG/FG is RoHS.
Features
• 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
(min, I
OUT
= 5 to 40 mA)
• Designed for common-anode LEDs
• Thermal shutdown (TSD)（min: 150℃）
• Power on reset (POR)
• Logical 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: SSOP16-P-225-0.65B/ SSOP16-P-225-1.00A
• Constant-current accuracy
Output Voltage
Current accuracy
Between Channels
Current Accuracy
Between ICs
Output Current
0.4 V to 4 V ±3% ±6% 15 mA
2010-03-08
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