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UCC38C42
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UCC38C42

  • Category:ACDC- and -DCDC-power supply
  • Product Name:BiCMOS low-power current mode PWM controller
  • Manufacturers:TI
  • Production Batch Number:09+
  • Encapsulation:8MSOP, 8PDIP, 8SOIC
  • Stock Status:There is stock
  • Stock Quantity:12000
  • Minimum order quantity: 1
  • Details:Click here to find PDF information on UCC38C42
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  • Product introduction

 

The UCC38C4x family is a high performance current mode PWM controller. This is an enhanced version of BiCMOS with pin-to-pin compatibility with the industry standard UC384xA family and the UC384x family of PWM controllers. In addition, the 7 volt low-voltage version is offered for start-up as the UCC38C40 and UCC38C41.

Providing the necessary functions to control fixed-frequency, peak current mode power supplies, this series offers the following performance benefits. The device provides high operating frequencies up to one low start-up and operating current megahertz, resulting in improved efficiency, minimized start-up losses, and low operating power consumption. The device also features a very fast current detection output delay time of 35 nanoseconds and ±1 improved peak output rise and fall times with the ability to drive large currents directly external MOSFETs.

characteristic
 
  • Enhanced home and replacement UC3842A pin-to-pin compatibility
  • 1 - MHz operation
  • 50μA start-up current, 100μA maximum
  • Low operating 2.3 mA current of 52 kHz
  • Cycle overcurrent protection with fast 35 ns cycle
  • Peak output current ± 1
  • Rail Times 25-ns rise and 20 nanosecond rail output swing fall
  • ± 1% initial side 2.5-V error amplifier reference
  • Side vibration discharge current
  • The new version of low voltage lockout
  • The MSOP-8 package reduces board space
  • apply
    • Switching power supply
    • DC-DC converters
    • Board mount the power module
parameter
    UCC38C42
topology   Boost, buck, reverse, forward
Control method   Current mode
Duty cycle (max.) (%)   100
Frequency (max) (khertz)   1000 years
On/Off of Undervoltage Lockout Threshold (5)   14.5 / 9
Pins/Packets   8MSOP，8PDIP，8SOIC
(#) Regulated output   One
Operating temperature range(°C)   0 to 70

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