Overview
The TPIC2810DR, 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 device includes internal power-up clear and thermal shutdown mechanisms for enhanced reliability and protection.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package | SOIC (D) - 16 pins | Packaging type and pin count |
| Operating Temperature Range | -40°C to 125°C | Case temperature range for operation |
| Output Type | Low-side, open-drain DMOS transistors | Type of output transistors |
| Continuous Sink Current per Output | 100 mA | Maximum continuous current each output can handle |
| Maximum Current Limit per Output | 210 mA at TC = 25°C | Maximum current limit at 25°C, decreases with increasing junction temperature |
| Output Clamp Voltage | 40 V | Maximum voltage the output can clamp to |
| Drain Output ESD Protection | 3000 V | ESD protection rating for output terminals |
| Input ESD Protection | 2000 V | ESD protection rating for input terminals |
| rDS(on) | 5 Ω Typical | Typical drain-source on-state resistance |
| I2C Bus Frequency | Up to 2 MHz | Maximum frequency of the I2C bus interface |
| VCC Range | 3 V to 5.5 V | Operating voltage range for the device |
Key Features
- Low rDS(on) of 5 Ω typical, ensuring minimal voltage drop across the DMOS transistors.
- Eight power DMOS transistor outputs with 100 mA continuous sink-current capability each.
- Maximum current limit of 210 mA per output at TC = 25°C, with the limit decreasing as the junction temperature increases.
- Drain output ESD protection of 3000 V and input ESD protection of 2000 V.
- Output clamp voltage of 40 V.
- Internal power-up clear to initialize all registers to an off state when power is applied.
- Thermal sensor to monitor die temperature and shut off drain outputs in case of overcurrent conditions.
- I2C bus interface with up to 2 MHz frequency, allowing for efficient data transfer.
- Support for up to eight devices on the same I2C bus, selectable via input terminals A0, A1, and A2.
Applications
The TPIC2810DR is suitable for driving low-side switched resistive loads, particularly LEDs, in various applications such as:
- LED lighting systems and displays.
- Automotive lighting and control systems.
- Industrial control and automation systems.
- Consumer electronics requiring LED control.
Q & A
- What is the primary function of the TPIC2810DR?
The TPIC2810DR is an 8-bit shift register designed to drive low-side switched resistive loads such as LEDs through an I2C bus interface.
- What is the maximum continuous sink current per output?
Each output can handle a maximum continuous sink current of 100 mA.
- What is the maximum current limit per output at 25°C?
The maximum current limit per output at 25°C is 210 mA, which decreases as the junction temperature increases.
- What is the output clamp voltage of the TPIC2810DR?
The output clamp voltage is 40 V.
- What level of ESD protection does the TPIC2810DR offer?
The device offers 3000 V of ESD protection on output terminals and 2000 V on input terminals.
- What is the typical rDS(on) of the DMOS transistors?
The typical rDS(on) is 5 Ω.
- What is the operating voltage range of the TPIC2810DR?
The operating voltage range is from 3 V to 5.5 V.
- How many devices can be connected on the same I2C bus?
Up to eight TPIC2810DR devices can be connected on the same I2C bus, selectable via input terminals A0, A1, and A2.
- What is the maximum frequency of the I2C bus interface?
The maximum frequency of the I2C bus interface is up to 2 MHz.
- Is the TPIC2810DR suitable for switching inductive loads?
No, the TPIC2810DR is not recommended for switching inductive loads.
