Toshiba's constant current LED drivers are designed to drive full-color LED modules and LED panels. The output current value can be set using an external resistor with an excellent accuracy. Convenient features to control large LED arrays are managed for example via the device's three-wire serial interface, which enable direct communication with a host controller. Possible features include output open-circuit detection (OOD) and output short-circuit detection (OSD), which communicate status to the controller via a serial interface. The serial interface also supports cascading of multiple drivers to control larger LED arrays.
Toshiba's constant current LED drivers feature 3-bit, 8-bit and 16-bit versions, and are available as surface mounted or through-hole packages. These drivers are designed in Toshiba's leading edge BiCMOS or CMOS processes.
TC62D748/TC62D749: Simple LED - Driver with Basic Features
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- 1.5mA - 90mA, 17V
- 3.0V-5.5V Power Supply
- Output current tolerance:
± 1.5% channel to channel
± 1.5%IC to IC
click to enlarge the image
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TC62D776: Simple LED - Driver with Advanced Features
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- 1.5mA - 90mA, 17V
- 3.0V-5.5V Power Supply
- Output current tolerance:
± 1.5% channel to channel
± 1.5%IC to IC
- Standby Function (1µA)
- 8-bit Current Gain Control
11%-200%
- Error Detection
Output Open Detection (OOD)
Output Short Detection
- Further Features:Output Delay
Power On Reset (POR)
Thermal Shutdown (TSD)
Half Clock Delay of Serial Output (Sout)
click to enlarge the image
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TC62D722/TC62D723: Advanced LED-Driver with PWM Control
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- 1.5mA - 90mA, 17V
- 3.0V-5.5V Power Supply
- Output current tolerance:
± 1.5% channel to channel
± 1.5%IC to IC
- Standby Function (1µA)
- 8-bit Current Gain Control
11%-200%
- Error Detection
Output Open Detection (OOD)
Output Short Detection
- Further Features: Output Delay
Power On Reset (POR)
Thermal Shutdown (TSD)
Half Clock Delay of Serial Output (Sout)
- 10/12/14/16-bit selectable PWM Grayscale with Auto-trigger
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LED Driver Focus Products
| Item |
Datasheet |
Channel |
Op.
Voltage |
Output
Current |
Max.
Output
Voltage |
Serial
Data
Transfer |
Output
current
between
Channels |
Output
current
between
ICs |
OOD *1 |
OSD *2 |
Package |
POR *3 |
TSD *4 |
Special Features
|
Status |
|
TB62777FG
TB62777FNG
|
 |
8
|
3.0V - 5.5V |
5mA - 40mA |
25V |
25MHz |
±3% |
±6% |
-
|
- |
SSOP16
SSOP16 |
Yes
|
Yes |
- Gain control with (6+1)bit DAC |
MP
|
|
TB62778FNG
|
|
8 |
3.0V - 5.5V |
5mA - 40mA |
25V |
25MHz |
±3% |
±6% |
Yes |
Yes |
VSOP16 |
Yes |
Yes |
- Current adjustment 25% - 100%
(via 7-bit register) |
MP |
| TB62779FNG |
|
9 |
3.3V - 5.5V |
5mA-40mA |
28V |
./. |
±3% |
±6% |
- |
- |
SSOP20 |
- |
Yes |
- I2C Interface
- Driver ID: 64 Driver
- Three external Resistors (RGB current)
- PWM Control (7-bit)
|
MP |
|
TC62D748CFG
TC62D748CFNAG
TC62D748BFNAG
|
|
16 |
3.0V - 5.5V |
1.5mA - 90mA |
17V |
25MHz |
±1.5% |
±1.5% |
- |
- |
SSOP24
QSOP24
QSOP24 |
- |
- |
- High accuracy
- High output current |
MP
|
|
TC62D749CFG
TC62D749CFNAG
TC62D749BFNAG
|
|
16 |
3.0V - 5.5V |
1.5mA - 90mA |
17V |
25MHz |
±1.5% |
±1.5% |
- |
- |
SSOP24
QSOP24
QSOP24 |
- |
- |
- High speed
OE pulse with 25ns
- High accuracy
- High output current |
MP |
|
TC62D776CFG
TC62D776CFNAG
|
|
16 |
3.0V - 5.5V |
1.5mA - 90mA |
25V |
25MHz |
±1.5% |
±1.5% |
Yes |
Yes |
SSOP24
QSOP24 |
Yes |
Yes |
- Standby Mode (1µA)
- 128-step current gain ctrl.
- Automatic Error Detection
- Output delay dunction |
(Samples OK)
Aug./11
Aug./11 |
|
TC62D722CFG
TC62D722CFNG
|
|
16 |
3.0V - 5.5V |
1.5mA - 90mA
|
17V |
30MHz |
±1.5% |
±1.5% |
Yes |
Yes
|
SSOP24
HTSSOP24 |
Yes |
Yes
|
- PWM CLK Frequency (30MHz)
- PWM clock open detection
- PWM grayscale (16/14/12/10bit)
- Output delay function
- High Accuracy
- 128-step current gain ctrl.
- Standby Mode (1µA)
|
(Samples OK)
Aug./11
Aug./11 |
|
TC62D723FG
TC62D723FNG
TC62D723FNAG
TC62D723FTAG
TC62D723FTBG
|
|
16 |
3.0V - 5.5V |
1.5mA - 90mA |
17V |
30MHz |
±1.5% |
±1.5% |
Yes |
Yes |
SSOP24
HTSSOP24
SSOP24
WQFN24
WQFN24
|
Yes |
Yes |
- PWM CLK Frequency (30MHz)
- PWM clock open detection
- PWM grayscale (16/14/12/10bit)
- Output delay function
- High Accuracy
- 128-step current gain ctrl.
- Standby Mode (1µA)
- Auto Trigger Function for PWM
|
(Samples OK)
Aug./11
Aug./11
Aug./11
Oct./11
Oct./11
|
*1 - Output Open Detection
*2 - Output Short Detection
*3 - Power On Reset
*4 - Thermal Shutdown
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