Overview
The TLC5917IDRG4 is an 8-channel constant-current sink LED driver produced by Texas Instruments. Designed for driving LEDs, this integrated circuit (IC) is widely used in applications requiring precise current control and high reliability. It is particularly suitable for automotive, industrial, and consumer electronics applications. The TLC5917IDRG4 stands out for its ability to provide consistent brightness across multiple LEDs, making it a preferred choice for lighting control systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 8 | - | |
| Output Current per Channel | 5 to 120 | mA | Adjustable |
| Supply Voltage | 3 to 5.5 | V | |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOIC-16 | - | |
| Communication Interface | I2C | - | |
| Dimming Control | PWM | - | 256 steps |
| ESD Protection | ±4 | kV | HBM |
Key Features
- 8-Channel LED Driver: Supports up to 8 LEDs with independent current control.
- Adjustable Current: Each channel can be configured for currents between 5 mA and 120 mA.
- PWM Dimming: Provides 256-step pulse-width modulation (PWM) for precise brightness control.
- I2C Interface: Enables easy communication and control with a microcontroller.
- High Reliability: Built-in ESD protection ensures durability in harsh environments.
Applications
The TLC5917IDRG4 is ideal for a variety of applications, including:
- Automotive Lighting: Used in interior and exterior LED lighting systems.
- Industrial Displays: Provides consistent brightness in control panels and indicators.
- Consumer Electronics: Enhances LED backlighting in TVs, monitors, and appliances.
- Signage: Ensures uniform illumination in LED signs and billboards.
Q & A
1. What is the maximum current per channel?
The maximum current per channel is 120 mA.
2. Can the TLC5917IDRG4 operate at high temperatures?
Yes, it can operate in temperatures ranging from -40°C to 125°C.
3. What is the communication interface used?
It uses an I2C interface for communication.
4. Is PWM dimming supported?
Yes, it supports 256-step PWM dimming.
5. What is the supply voltage range?
The supply voltage range is 3 V to 5.5 V.
6. How many LEDs can it drive?
It can drive up to 8 LEDs independently.
7. Does it have ESD protection?
Yes, it has ±4 kV ESD protection.
8. What package does it come in?
It comes in an SOIC-16 package.
9. Is it suitable for automotive applications?
Yes, it is widely used in automotive lighting systems.
10. Can the output current be adjusted?
Yes, the output current can be adjusted between 5 mA and 120 mA per channel.
