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UCC38C41
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UCC38C41

  • 所属类别：ACDC-和-DCDC-电源
  • 产品名称：BiCMOS 低功耗电流模式 PWM 控制器
  • 厂商：TI
  • 生产批号：08+
  • 封装：8MSOP, 8PDIP, 8SOIC
  • 库存状态：有库存
  • 库存量：5000
  • 最低订购量：1
  • 详细资料：点击查找UCC38C41的pdf资料
  • 点击询价
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  • Product Introduction

The UCC38C4x home 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 home and PWM controller UC384x home. In addition, the 7-volt low-voltage version of the start-up is available as a UCC38C40 and UCC38C41.

Providing the necessary features to control a fixed-frequency, peak-current-mode power supply, the series offers the following performance benefits: The device provides high operating frequencies up to one low start-up and operating current megahertz to improve efficiency, minimize start-up losses, and low operating power. The device also features a very fast current-detected output with a delay time of 35 nanoseconds and an improved peak output rise and fall time of ±1 for driving high currents directly from external MOSFETs.

characteristic
 
  • Enhance pin-to-pin compatibility with home and replacement UC3842A
  • 1 - MHz operation
  • 50μA start-up current, 100μA max
  • The low operating current of 2.3 mA is 52 kHz
  • Periodic overcurrent protection for cycles as fast as 35 ns
  • ± 1 peak output current
  • Orbital time 25-ns rise and 20 nanosecond orbit output swing fall
  • ± 1% of the initial edge of the 2.5-V error amplifier reference
  • Side vibration discharge current
  • New version of low voltage locking
  • The MSOP-8 package reduces board space
  • apply
    • Switching power supply
    • DC-to-DC converters
    • Board-mounted power module
parameter
    UCC38C41
topology   Boost, buck, reverse, forward
Control method   Current mode
Duty Cycle (Max) (%)   50
Frequency (max) (kHz)   1000 years
On/off of undervoltage lockout threshold (5)   7/6.6
Pin/Pack   8MSOP，8SOIC，8PDIP
(#) Regulated output   One
Operating Temperature Range (°C)   0 to 70

ICs related to UCC38C41 include:


Model Manufacturers lot number encapsulation illustrate
UCC3960 TI 11+ 8PDIP, 8SOIC Primary side start controller
UCC38C45 TI 08+ 8MSOP, 8PDIP, 8SOIC BiCMOS low-power current-mode PWM controller
UCC38C44 TI 09+ 8MSOP, 8PDIP, 8SOIC BiCMOS low-power current-mode PWM controller
UCC38C43 TI 08+ 8MSOP, 8PDIP, 8SOIC BiCMOS low-power current-mode PWM controller
UCC38C42 TI 09+ 8MSOP, 8PDIP, 8SOIC BiCMOS low-power current-mode PWM controller
UCC38C40 TI 10+ 8MSOP, 8PDIP, 8SOIC BiCMOS low-power current-mode PWM controller
UCC3895 TI 07+ 20PDIP, 20PLCC, 20SOIC, 20TSSOP BiCMOS Advanced Phase-Shift PWM Controller
UCC3889 TI 10+ 8PDIP, 8SOIC Offline power controller
UCC3888 TI 08+ 8PDIP, 8SOIC Offline power controller
UCC3884 TI 08+ 16PDIP, 16SOIC Frequency foldback current mode PWM controller

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