UCC2888DG4

UCC2888DG4 Product Details

Product Parameters of UCC2888DG4 

•  Manufacturer: Texas Instruments

•  Product Category: AC/DC Converters, Offline Switches

•  Package: 8-SOIC (0.154", 3.90mm Width)

•  Output Isolation: Non-Isolated

•  Internal Switch(s): No

•  Topology: Flyback

•  Voltage - Start Up: 8.4 V

•  Voltage - Supply (Vcc/Vdd): 6V ~ 9.3V

•  Duty Cycle: 7.6%

•  Frequency - Switching: -

•  Fault Protection: Short Circuit

•  Control Features: -

•  Operating Temperature: -40°C ~ 85°C (TA)

•  Product Status: Obsolete

Product Introduction of UCC2888DG4 

The UCC2888DG4 is a off-line power supply controller that can be used to design high-efficiency and low-cost flyback converters. The device features a low-power startup circuit that reduces the power consumption in standby mode, a current-sense circuit that provides accurate cycle-by-cycle current limiting, and a latching PWM that ensures zero-voltage switching. The device also has a built-in soft-start function that prevents output overshoot and a brownout detection function that protects the converter from low input voltage conditions.

Product Application Scope of UCC2888DG4 

The UCC2888DG4 can be used for various applications that require isolated and regulated DC output from AC input, such as:

•  Battery chargers

•  Auxiliary power supplies

•  LED drivers

•  Telecom power supplies

•  Industrial power supplies

Common Questions and Answers of UCC2888DG4 

•  Q: What is the difference between UCC2888DG4 and UCC3888DG4?

•  A: The UCC2888DG4 and UCC3888DG4 are similar devices, except that the UCC3888DG4 has a synchronous rectifier control output that can be used to drive an external MOSFET for improved efficiency.

•  Q: What is the advantage of zero-voltage switching?

•  A: Zero-voltage switching (ZVS) is a technique that reduces the switching losses and electromagnetic interference (EMI) of the converter by turning on the switch when the voltage across it is zero.

•  Q: Why is the UCC2888DG4 obsolete?

•  A: The UCC2888DG4 is obsolete because Texas Instruments has discontinued the production of this device.

•  Q: What are some alternative devices to the UCC2888DG4?

•  A: Some alternative devices to the UCC2888DG4 are:

•  UCC28700: A primary-side regulated flyback controller with constant-voltage and constant-current output regulation.

•  UCC28600: A quasi-resonant flyback controller with green-mode operation and frequency foldback.

•  UCC28910: A high-voltage flyback controller with integrated 700V MOSFET and current sensing.