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UCC39422 - Multimode High Frequency PWM Controller

Download the UCC39422 datasheet PDF. This datasheet also covers the UCC39421 variant, as both devices belong to the same multimode high frequency pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

SYNC/SD 13 RT 14 1.8 V(MIN) 1.24 V VREF PWM OSC VPUMP 7 VIN 9 CHARGE PUMP VPUMP 8 CP 3 VOUT 2 RSEN RECT 4 ANTI

CROSS COND.

Key Features

  • include pulse-by-pulse current limiting, and a low 5-µA quiescent current during shutdown. The UCC39422 incorporates programmable power-on reset circuitry and an uncommitted comparator for low voltage detection. The available packages are 20-pin TSSOP or 20-pin N for the UCC39422, and 16-pin TSSOP or 16-pin N for the UCC39421. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)Ĕ} Supply Voltage (VIN, VOUT,VPUMP).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC39421-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC39422
Manufacturer Unitrode
File Size 1.18 MB
Description Multimode High Frequency PWM Controller
Datasheet download datasheet UCC39422 Datasheet

Other Datasheets by Unitrode

Part Number Description
UCC39421 Multimode High Frequency PWM Controller
UCC3941-3 (UCCx941-x) 1V Synchronous Boost Converter
UCC3941-5 (UCCx941-x) 1V Synchronous Boost Converter
UCC3912 Programmable Hot Swap Power Manager
UCC3915 15-V Programmable Hot Swap Power Manager
UCC3916 SCSI Termpower Manager
UCC3918 Low On-Resistance Hot Swap Power Manager
UCC3921 Latchable Negative Floating Hot Swap Power Manager
UCC3926 +-20A Integrated Current Sensor
UCC3960 Primary-Side Startup Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ą UCC29421, UCC29422, UCC39421, UCC39422 MULTIMODE HIGHĆFREQUENCY PWM CONTROLLER SLUS246C − OCTOBER 1999 − REVISED FEBRUARY 2005 D Operation Down to an Input Voltage of 1.8 V simplified schematic block diagram and application circuit D High Efficiency Boost, SEPIC or Flyback (Buck-Boost) Topologies D Drives External FETs for High-Current Applications D Up to 2-MHz Oscillator D Synchronizable Fixed Frequency Operation D High-Efficiency Low-Power Mode D High-Efficiency at Very Low-Power with Programmable Variable Frequency Mode D Pulse-by-Pulse Current Limit D 5-µA Supply Current in Shutdown D 150-µA Supply Current in Sleep Mode D Selectable NMOS or PMOS Rectification D Built-In Power-On Reset (UCC39422 Only) D Built-In Low-Voltage Detect (UCC39422 Only) description SYNC/SD 13 RT 14 1.