TLC5946RHBT
Active16-CHANNEL, 12-BIT PWM LED DRIVER WITH 6-BIT DOT CORRECTION
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TLC5946RHBT
Active16-CHANNEL, 12-BIT PWM LED DRIVER WITH 6-BIT DOT CORRECTION
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Technical Specifications
Parameters and characteristics for this part
| Specification | TLC5946RHBT |
|---|---|
| Applications | Backlight, Signage |
| Current - Output / Channel [custom] | 40 mA |
| Frequency | 30 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 16 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-VQFN (5x5) |
| Topology | Shift Register |
| Type | Linear |
| Voltage - Output | 17 V |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.68 | |
| 10 | $ 2.40 | |||
| 25 | $ 2.27 | |||
| 100 | $ 1.97 | |||
| Digi-Reel® | 1 | $ 2.68 | ||
| 10 | $ 2.40 | |||
| 25 | $ 2.27 | |||
| 100 | $ 1.97 | |||
| Tape & Reel (TR) | 250 | $ 1.87 | ||
| 500 | $ 1.68 | |||
| 1250 | $ 1.41 | |||
| 2500 | $ 1.34 | |||
| 6250 | $ 1.29 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.24 | |
| 100 | $ 1.85 | |||
| 250 | $ 1.33 | |||
| 1000 | $ 1.00 | |||
Description
General part information
TLC5946 Series
The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor.
The TLC5946 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.
The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor.
