Overview
The TPS40200DRBT, produced by Texas Instruments, is a flexible, non-synchronous voltage-mode controller designed with a built-in 200-mA driver for P-channel FETs. This controller operates with input voltages ranging from 4.5 V to 52 V, making it highly versatile for various power management applications. It features a power-saving mechanism that turns off the driver current once the external FET is fully turned on, reducing power dissipation. The device supports voltage-mode feedback with feed-forward input voltage compensation, ensuring stable operation across the full input voltage range. The TPS40200 is available in 8-pin SOIC and VSON packages, offering a compact solution with advanced functionalities.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 V to 52 V | V |
| Output Voltage Range | 700 mV to 90% VIN | V |
| Internal P-channel FET Driver Current | 200 mA | mA |
| Programmable Fixed-Frequency Range | 35 kHz to 500 kHz | kHz |
| Reference Voltage | 700 mV (1% accuracy) | mV |
| Package Types | 8-pin SOIC (D), 8-pin VSON (DRB) | - |
| Undervoltage Lockout (UVLO) Threshold | Typically 4.25 V | V |
Key Features
- Voltage feed-forward compensation to maintain constant PWM gain over the full input voltage range.
- Programmable fixed-frequency operation between 35 kHz and 500 kHz.
- Programmable short-circuit protection and hiccup overcurrent fault recovery.
- Programmable closed-loop soft-start to prevent output voltage overshoot.
- External synchronization capability to align with other controllers or system clocks.
- Undervoltage lockout (UVLO) to prevent operation below a certain input voltage threshold.
- Compact 8-pin SOIC and VSON packages for space-efficient designs.
Applications
The TPS40200 is suitable for a variety of power management applications, including:
- Industrial power supplies requiring wide input voltage ranges.
- Automotive systems where input voltage can vary significantly.
- Telecom and networking equipment needing reliable and efficient power conversion.
- LED drivers and other lighting systems that require precise voltage control.
- General-purpose DC-DC conversion in embedded systems and consumer electronics.
Q & A
- What is the input voltage range of the TPS40200?
The input voltage range of the TPS40200 is from 4.5 V to 52 V.
- What is the output voltage range of the TPS40200?
The output voltage range is from 700 mV to 90% of the input voltage (VIN).
- What is the current rating of the internal P-channel FET driver?
The internal P-channel FET driver has a current rating of 200 mA.
- Can the switching frequency of the TPS40200 be programmed?
- Does the TPS40200 have undervoltage lockout (UVLO) protection?
- How does the TPS40200 handle overcurrent conditions?
The TPS40200 features programmable short-circuit protection and hiccup overcurrent fault recovery.
- Can the TPS40200 be synchronized with other controllers or system clocks?
- What are the available package types for the TPS40200?
The TPS40200 is available in 8-pin SOIC (D) and 8-pin VSON (DRB) packages.
- Does the TPS40200 have a soft-start feature?
- What is the reference voltage accuracy of the TPS40200?
The integral 700-mV reference is trimmed to 1% accuracy.
