Overview
The TL2845DR-8 is a high-performance pulse-width modulation (PWM) controller produced by Texas Instruments. This product is designed for use in switch-mode power supplies (SMPS) and other power management applications. The TL2845DR-8 is part of the TL284x series, which is known for its reliability and efficiency in controlling power converters. Its market positioning targets engineers and designers working on industrial, automotive, and consumer electronics applications. The TL2845DR-8 stands out for its precise voltage regulation, robust design, and ease of integration into various power systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Type | PWM | - | Single-ended |
| Input Voltage | 8 to 30 | V | Operating range |
| Switching Frequency | Up to 500 | kHz | Adjustable |
| Operating Temperature | -40 to 85 | °C | Industrial range |
| Package | SOIC-8 | - | Surface mount |
| Current Limit | 1 | A | Peak output current |
| Error Amplifier Gain | 95 | dB | Typical |
| Standby Current | 1 | mA | Typical |
| Output Duty Cycle | 0 to 100 | % | Adjustable |
Key Features
- Precise voltage regulation for stable power supply outputs.
- Adjustable switching frequency up to 500 kHz for flexible design.
- Integrated error amplifier for enhanced control accuracy.
- Robust design with overcurrent and thermal protection.
- Wide input voltage range (8V to 30V) for versatile applications.
Applications
The TL2845DR-8 is widely used in switch-mode power supplies (SMPS), DC-DC converters, and AC-DC power supplies. Its precise control and robust design make it suitable for industrial automation, automotive electronics, and consumer electronics. In industrial applications, it ensures stable power delivery in harsh environments. In automotive systems, it supports efficient power management for onboard electronics. For consumer electronics, it enables compact and efficient power solutions.
Q & A
1. What is the operating voltage range of the TL2845DR-8?
The TL2845DR-8 operates within an input voltage range of 8V to 30V.
2. Can the switching frequency be adjusted?
Yes, the switching frequency is adjustable up to 500 kHz.
3. What is the package type of the TL2845DR-8?
The TL2845DR-8 comes in an SOIC-8 surface-mount package.
4. Does the TL2845DR-8 include overcurrent protection?
Yes, it features overcurrent protection with a peak output current limit of 1A.
5. What is the typical error amplifier gain?
The typical error amplifier gain is 95 dB.
6. Is the TL2845DR-8 suitable for automotive applications?
Yes, its robust design and wide operating temperature range make it suitable for automotive electronics.
7. What is the standby current of the TL2845DR-8?
The standby current is typically 1 mA.
8. Can the TL2845DR-8 handle 100% duty cycle?
Yes, the output duty cycle is adjustable from 0% to 100%.
9. What is the operating temperature range?
The TL2845DR-8 operates in temperatures ranging from -40°C to 85°C.
10. Is the TL2845DR-8 compatible with other TL284x series controllers?
Yes, it is compatible with other controllers in the TL284x series, offering design flexibility.
