TLC5957RTQR
Active48-CHANNEL, 16BIT ES-PWM LED DRIVER W/ PRE-CHARGE FET, LED OPEN DETECTION AND CATERPILLAR CANCELLING
Deep-Dive with AI
Search across all available documentation for this part.
TLC5957RTQR
Active48-CHANNEL, 16BIT ES-PWM LED DRIVER W/ PRE-CHARGE FET, LED OPEN DETECTION AND CATERPILLAR CANCELLING
Technical Specifications
Parameters and characteristics for this part
| Specification | TLC5957RTQR |
|---|---|
| Applications | Signage |
| Current - Output / Channel [custom] | 25 mA |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 16 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 56-VFQFN Exposed Pad |
| Supplier Device Package | 56-QFN (8x8) |
| Topology | Shift Register |
| Type | Linear |
| 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 | $ 6.47 | |
| 10 | $ 4.38 | |||
| 25 | $ 3.84 | |||
| 100 | $ 3.23 | |||
| 250 | $ 2.93 | |||
| 500 | $ 2.76 | |||
| 1000 | $ 2.61 | |||
| Digi-Reel® | 1 | $ 6.47 | ||
| 10 | $ 4.38 | |||
| 25 | $ 3.84 | |||
| 100 | $ 3.23 | |||
| 250 | $ 2.93 | |||
| 500 | $ 2.76 | |||
| 1000 | $ 2.61 | |||
| Tape & Reel (TR) | 2000 | $ 2.48 | ||
| 4000 | $ 2.43 | |||
| Texas Instruments | LARGE T&R | 1 | $ 3.92 | |
| 100 | $ 3.44 | |||
| 250 | $ 2.41 | |||
| 1000 | $ 1.94 | |||
Description
General part information
TLC5957 Series
The TLC5957 is a 48-channel constant current sink driver. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control.
The output channels are divided into three groups, each group has a 512 step color brightness control (CC), CC adjusts brightness between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible via a serial interface port.
TLC5957 has one error flag: LED open detection (LOD), which can be read via a serial interface port. Each constant-current has a pre-charge field- effect transistor (FET), which can remove ghosting and improve display performance on the multiplexing LED display. Besides, TLC5957 has an enhanced circuit, it can cancel the caterpillar effect caused by LED open.
Documents
Technical documentation and resources