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UCC24636DBVR

Name: UCC24636DBVR
Rating: 4.7 (12 reviews)

IC REG SR CTRLR SYNC SOT23-6

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製造商。部分 #UCC24636DBVR
包 SOT-23 (DBV)-6
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Applications	Secondary-Side Controller, Synchronous Rectifier
Voltage-Supply	3.6V ~ 28V
OperatingTemperature	-40°C ~ 125°C
MountingType	Surface Mount
Package/Case	SOT-23-6

概述

Description

UCC24636DBVR is TI’s high‑voltage flyback controller IC (UCC24xx family) for off‑line switch‑mode power supplies. It is a primary‑side regulation controller that drives an external MOSFET to implement flyback conversion, often used in AC‑DC adapters, phone chargers, and similar low‑to‑mid‑power supplies. Key features typically include a wide input range from bulk DC, a high‑voltage startup/current source, current‑mode control, and protections such as undervoltage lockout, overcurrent/short‑circuit, overvoltage, plus soft‑start. It supports primary‑side regulation (PSR) feedback or can work with an optocoupler feedback path as needed. The DBVR suffix denotes its package variant (8‑pin). In short, it enables efficient, cost‑optimized off‑line power supplies with reduced or optional opto feedback. For exact electrical specs and current limitations, consult the latest TI datasheet.

Features

Here are the typical features of TI UCC24636DBVR (datasheet highlights):
- High-voltage primary-side PWM controller for off-line flyback converters
- Wide input/applicable to universal mains (offline) operation
- Current-mode (peak-current) PWM control with protection features
- Internal or fixed switching frequency with efficiency optimizations (e.g., valley/burst modes for light-load)
- Soft-start to limit inrush and output overshoot
- Cycle-by-cycle current limit and short-circuit protection
- Overvoltage and undervoltage protection (UVLO) with enable functionality
- Over-temperature/shutdown protection
- Fault latch and recovery
- Small 8-pin DBV package; RoHS-compliant variant (DBVR)
- Suitable for low-quiescent-power designs with good efficiency
Note: For exact electrical specifications (voltage ranges, frequency, thresholds, protections, etc.), please consult the TI datasheet.

Package

UCC24636DBVR is in the DBV package (an 8‑pin, VSSOP/SON‑style package). The trailing “R” denotes tape-and-reel packaging.

Pinout

- Pin count: 8 pins (DBVR package)
- Function: TI UCC24636DBVR is a high-voltage primary-side regulation (PSR) flyback controller for isolated off-line switch-mode power supplies. It drives an external MOSFET, provides high-voltage startup, current‑mode control, and protective features (shutdown/overcurrent), enabling regulation without an opto-isolator.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing ICs; headquartered in Dallas, Texas.

Application

Applications for UCC24636DBVR include:
- Off-line AC-DC power supplies with power-factor correction (PFC)
- Wall adapters and notebook/desktop power bricks
- LED lighting driver power supplies
- TV/monitor and set-top box power supplies
- Telecom and industrial equipment requiring high efficiency and low harmonic distortion