Texas Instruments' model UCC2895MDWREP is a PWM controller, a phase-shifted pulse width modulation (PWM) controller that controls the full-bridge power level by phase-shifting the switches of one half-bridge relative to the other half-bridge. It allows constant frequency PWM combined with resonant zero voltage switching to provide high efficiency at high frequencies. The device can be used as a voltage mode or current mode controller.
While the UCC2895MDWREP maintains the functionality of the UC2875/6/7/8 series, it improves upon that controller series with other features such as enhanced control logic, adaptive delay settings and shutdown functionality.
Since the device has built-in BCDMOS, its operating current is significantly lower compared to bipolar devices. The UCC2895MDWREP can operate at a maximum clock frequency of 1MHz.
Functional features of UCC2895MDWREP
1. Programmable output rotation delay;
2. Adaptive delay setting;
3. Bidirectional oscillator synchronization;
4. Capability control of voltage mode or current mode;
5. Programmable soft start/soft stop and chip disabled by single pin;
6. 0% to 100% duty cycle control;
7. 7MHz error amplifier;
8. Operating frequency is 1 MHz;
9. Low active current consumption (5 mA type at 500 kHz);
10. Undervoltage lockout during extremely low current consumption (150μA type);
11. Support national defense, aerospace and medical care.
Application areas of UCC2895MDWREP
UCC2895MDWREP is mainly used in power systems with high-efficiency/high-voltage input and output chopper control applications. Its main application areas are as follows:
1. Power converter: UCC2895MDWREP can be used in various types of power converters, such as switching mode power supplies, offline voltage regulators and DC/DC converters.
2. Server and data center power supply: Due to its high-efficiency characteristics, UCC2895MDWREP is often used in server and data center power supply systems to improve energy utilization and reduce energy costs.
3. Industrial power supply: Industrial equipment usually requires stable and reliable power supply. UCC2895MDWREP is suitable for the design of industrial power supply system and can ensure the stable operation of industrial equipment.
4. LED lighting: UCC2895MDWREP can be used in LED driving circuits to control high-brightness LED lighting systems and provide high-efficiency and stable power supplies.
Parameters of UCC2895MDWREP
Brand: Texas Instruments
Product Category: PWM Controller
Package: 20-SOIC
Packaging: whole package
Output type: PWM
Output configuration: positive
Topology: phase-shifted full bridge
Number of outputs: 1
Output stage: 1
Voltage-power supply (Vcc/Vdd): 10V ~ 16.5V
Frequency-Switch: 1MHz
Duty cycle (maximum): 100%
Clock Synchronization: Yes
Control features: frequency control, soft start, synchronization
Working temperature: -55°C ~ 125°C(TJ)
Installation type: surface mount type
Basic product number: UCC2895
HTSUS: 8542.39.0001
Pin diagram of UCC2895MDWREP
Schematic diagram of UCC2895MDWREP
Package diagram of UCC2895MDWREP
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