Overview
The TPIC2810, produced by Texas Instruments, is a monolithic, medium-voltage, low-current, 8-bit shift register designed to drive low-side switched resistive loads such as LEDs. This device is not recommended for switching inductive loads. It features an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register, with data transfer facilitated through an I2C bus interface. The TPIC2810 includes internal power-up clear and thermal shutdown mechanisms for enhanced reliability and protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Logic Supply Voltage (VCC) | 3.0 - 5.5 | V |
| High-Level Input Voltage (VIH) | 0.7VCC | V |
| Low-Level Input Voltage (VIL) | 0.3VCC | V |
| Pulse Drain Output Current (TC = 25°C, VCC = 5 V) | 210 | mA |
| Continuous Drain Output Current | 100 | mA |
| Output Clamp Voltage | 40 | V |
| Drain Output ESD Protection | 3000 | V |
| Operating Case Temperature Range | -40 to 125 | °C |
| Storage Temperature Range | -65 to 150 | °C |
Key Features
- Eight Power DMOS Transistor Outputs with 100-mA continuous current and 210-mA maximum current limit at TC = 25°C.
- Low rDS(on) of 5 Ω typical.
- Drain Output ESD Protection of 3000 V and input ESD protection of 2000 V.
- I2C bus interface for data transfer with subaddressing capability.
- Internal power-up clear and thermal shutdown for enhanced reliability.
- Output storage register controls the state of the FETs.
Applications
The TPIC2810 is suitable for driving low-side switched resistive loads such as LEDs in various applications, including display panels, signage, and other lighting systems. It is also applicable in scenarios where medium-voltage, low-current drive capabilities are required.
Q & A
- What is the primary function of the TPIC2810? The TPIC2810 is designed to drive low-side switched resistive loads such as LEDs using an 8-bit shift register and I2C interface.
- What is the maximum continuous current per output? Each output can handle up to 100 mA of continuous current.
- What is the maximum current limit at TC = 25°C? The maximum current limit is 210 mA at TC = 25°C.
- What type of protection does the TPIC2810 offer? The device offers 3000 V of ESD protection on output terminals and 2000 V on input terminals.
- What is the operating case temperature range of the TPIC2810? The operating case temperature range is -40°C to 125°C.
- How does the I2C interface work on the TPIC2810? The I2C interface allows for serial data transfer using a two-wire bus consisting of a serial clock signal (SCL) and a serial data signal (SDA), with subaddressing capability.
- What happens during power-up of the TPIC2810? The device has an internal power-up clear that initializes all registers to an off state when power is applied.
- Can the TPIC2810 be used for inductive loads? No, the TPIC2810 is not recommended for switching inductive loads.
- How many devices can be placed on the I2C bus? Up to eight TPIC2810 devices can be placed on the I2C bus.
- What is the storage temperature range of the TPIC2810? The storage temperature range is -65°C to 150°C.
