전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

UC2525A

활성

-25C~85C를 지원하는 35V, 듀얼 0.4A 400KHz PWM 컨트롤러

제품 상세 정보

Vin (max) (V) 40 Operating temperature range (°C) -25 to 85 Control mode Voltage Topology Boost, Buck, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 49
Vin (max) (V) 40 Operating temperature range (°C) -25 to 85 Control mode Voltage Topology Boost, Buck, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 49
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • 8-V to 35-V Operation
  • 5.1-V Reference Trimmed to 1%
  • 100-Hz to 500-kHz Oscillator Range
  • Separate Oscillator Sync Terminal
  • Adjustable Dead-Time Control
  • Internal Soft Start
  • Pulse-by-Pulse Shutdown
  • Input Undervoltage Lockout With Hysteresis
  • Latching PWM to Prevent Multiple Pulses
  • Dual Source and Sink Output Drivers
  • 8-V to 35-V Operation
  • 5.1-V Reference Trimmed to 1%
  • 100-Hz to 500-kHz Oscillator Range
  • Separate Oscillator Sync Terminal
  • Adjustable Dead-Time Control
  • Internal Soft Start
  • Pulse-by-Pulse Shutdown
  • Input Undervoltage Lockout With Hysteresis
  • Latching PWM to Prevent Multiple Pulses
  • Dual Source and Sink Output Drivers

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip 5.1-V reference is trimmed to 1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip 5.1-V reference is trimmed to 1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TL494 활성 40V, 0.2A 300KHz PWM 컨트롤러 Supports push-pull topology

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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4개 모두 보기
유형 직함 날짜
* Data sheet UCx52xA Regulating Pulse Width Modulators datasheet (Rev. D) PDF | HTML 2017/07/27
Technical article When should you use PWM controllers? PDF | HTML 2016/12/02
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 1999/09/05
Application note Understanding Buck Power Stages In Switchmode Power Supplies 1999/03/04

설계 및 개발

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패키지 CAD 기호, 풋프린트 및 3D 모델
PDIP (N) 16 Ultra Librarian
SOIC (DW) 16 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

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