Overview
The UC2825BDW is a high-speed Pulse Width Modulation (PWM) controller designed by Texas Instruments for various power management applications. This device is particularly suited for AC/DC and isolated DC/DC switching regulators. It features a 30V, 2A double-ended PWM controller with an adjustable switching frequency up to 1MHz, making it versatile for a wide range of high-speed applications. The controller operates within a temperature range of -40°C to 85°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Topology | Boost, Flyback, Forward, Full bridge, Half bridge, Push pull |
|---|---|
| Control Mode | Current, Voltage |
| Duty Cycle (Max) (%) | 50 |
| Switching Frequency (Max) (kHz) | 1000 |
| Gate Drive (Typ) (A) | 2 |
| Operating Temperature Range (°C) | -40 to 85 |
| UVLO Thresholds On/Off (V) | 16/10 |
| Vin (Max) (V) | 22 |
| Vin (Min) (V) | 10 |
| Package Type | SOIC-16 |
Key Features
- Adjustable switching frequency up to 1MHz
- 30V, 2A double-ended PWM controller
- 16V/10V undervoltage locks (UVLO)
- Current limiting
- Dead time control
- Error amplifier
- Leading edge blanking
- Multi-topology support (Boost, Flyback, Forward, Full bridge, Half bridge, Push pull)
- Programmable maximum duty cycle
- Soft start function
- Synchronization pin
Applications
- AC/DC and isolated DC/DC switching regulators for power management systems
- Electronic ballasts for fluorescent lighting applications
Q & A
- What is the UC2825BDW? The UC2825BDW is a high-speed PWM controller from Texas Instruments designed for power management applications.
- What is the maximum switching frequency of the UC2825BDW? The maximum switching frequency is up to 1MHz.
- What are the supported topologies by the UC2825BDW? It supports Boost, Flyback, Forward, Full bridge, Half bridge, and Push pull topologies.
- What is the operating temperature range of the UC2825BDW? The operating temperature range is -40°C to 85°C.
- What are the UVLO thresholds for the UC2825BDW? The UVLO thresholds are 16V and 10V for on and off respectively.
- What is the typical gate drive current for the UC2825BDW? The typical gate drive current is 2A.
- What package type does the UC2825BDW come in? It comes in a SOIC-16 package.
- Does the UC2825BDW support soft start? Yes, it supports a soft start function.
- What is the maximum duty cycle of the UC2825BDW? The maximum duty cycle is 50%.
- Is the UC2825BDW RoHS compliant? Yes, it is RoHS compliant.
