Overview
The UCC28513DWR is an advanced Power Factor Correction (PFC) and Pulse Width Modulation (PWM) combination controller produced by Texas Instruments, although it was originally developed by Unitrode. This integrated circuit is designed to provide complete control functionality for off-line power systems, ensuring compliance with IEC1000-3-2 harmonic reduction requirements. By combining the control and drive signals for both PFC and PWM stages in a single device, it offers significant performance and cost benefits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | UCC28513DWR | |
| Control Method | CCM (Continuous Conduction Mode) | |
| Device Type | PFC + PWM | |
| Operating Supply Current | 4 mA | |
| Operating Supply (Max) | 18 V | |
| Operating Temperature Range | -40°C to 105°C | |
| Package Type | SOIC (DW) | |
| Pins | 20 | |
| Startup Current | 0.1 mA | |
| UVLO Thresholds On/Off | 10.2 V / 9.7 V | |
| Peak Output Sink Current Gate Drive | 3 A | |
| Peak Output Source Current Gate Drive | -2 A | |
| Practical Operating Frequency (Max) | 0.5 MHz |
Key Features
- Provides control of PFC and PWM power stages in one device.
- Leading-edge PFC and trailing-edge PWM modulation for reduced ripple current in the boost capacitor.
- Built-in sequencing of PFC and PWM turn-on.
- 2-A source and 3-A sink gate drive for both PFC and PWM stages.
- Average current mode control for continuous conduction mode operation in PFC stage.
- Highly-linear multiplier for near-unity power factor.
- Input voltage feedforward implementation.
- Improved load transient response.
- Accurate power limiting and zero power detect.
- Peak current mode control operation in PWM stage.
- Programmable maximum duty cycle and soft-start.
- Two hysteresis options for differing hold-up time requirements.
Applications
The UCC28513DWR is designed for use in off-line power systems that require compliance with harmonic reduction standards such as IEC1000-3-2. It is particularly suitable for applications in:
- Switch-mode power supplies.
- Power factor correction circuits.
- Pulse width modulation control systems.
- High-efficiency power conversion systems.
Q & A
- What is the primary function of the UCC28513DWR?
The UCC28513DWR is a combination controller for Power Factor Correction (PFC) and Pulse Width Modulation (PWM) stages in off-line power systems.
- Who is the manufacturer of the UCC28513DWR?
The UCC28513DWR is manufactured by Texas Instruments, although it was originally developed by Unitrode.
- What is the operating temperature range of the UCC28513DWR?
The operating temperature range is -40°C to 105°C.
- What is the maximum operating supply voltage for the UCC28513DWR?
The maximum operating supply voltage is 18 V.
- What type of modulation does the UCC28513DWR use for PFC and PWM stages?
The UCC28513DWR uses leading-edge modulation for PFC and trailing-edge modulation for PWM.
- What are the key benefits of using the UCC28513DWR?
The key benefits include reduced ripple current, improved load transient response, and compliance with harmonic reduction standards.
- What is the package type and pin count of the UCC28513DWR?
The package type is SOIC (DW) with 20 pins.
- What are the peak output current capabilities of the gate drive for the UCC28513DWR?
The peak output sink current is 3 A and the peak output source current is -2 A.
- Does the UCC28513DWR support programmable features?
Yes, it supports programmable maximum duty cycle and soft-start.
- What are some typical applications for the UCC28513DWR?
Typical applications include switch-mode power supplies, power factor correction circuits, and high-efficiency power conversion systems.
