UCC2583_TI 温度范围为 -40°C 至 85°C 的开关模式次级侧后置稳压器

UCC2583的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
功能描述：温度范围为 -40°C 至 85°C 的开关模式次级侧后置稳压器
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UCC2583的产品详情：

The UCC3583 is a synchronizable secondary side post regulator for precision regulation of the auxiliary outputs of multiple output power supplies. It contains a leading edge pulse width modulator, which generates the gate drive signal for a FET power switch connected in series with the rectifying diode. The turn-on of the power switch is delayed from the leading edge of the secondary power pulse to regulate the output voltage. The UCC3583 contains a ramp generator slaved to the secondary power pulse, a voltage error amplifier, a current error amplifier, a PWM comparator and associated logic, a gate driver, a precision reference, and protection circuitry.

The ramp discharge and termination of the gate drive signal are triggered by the synchronization pulse, typically derived from the falling edge of the transformer secondary voltage. The ramp starts charging again once its low threshold is reached. The gate drive signal is turned on when the ramp voltage exceeds the control voltage. This leading edge modulation technique prevents instability when the UCC3583 is used in peak current mode primary controlled systems.

The controller operates from a floating power supply referenced to the output voltage being controlled. It features an undervoltage lockout (UVLO) circuit, a soft start circuit, and an averaging current limit amplifier. The current limit can be programmed to be proportional to the output voltage, thus achieving foldback operation to minimize the dissipation under short circuit conditions.

UCC2583的优势和特性：

Precision Secondary Side Post Regulation for Multiple Output Power Supplies
Useful for Both Single Ended and Center Tapped Secondary Circuits
Ideal Replacement for Complex Magnetic Amplifier Regulated Circuits
Leading Edge Modulation
Does Not Require Gate Drive Transformer
High Frequency (>500kHz) Operation
Applicable for Wide Range of Output Voltages
High Current Gate Driver (0.5A Sink/1.5A Source)
Average Current Limiting Loop

UCC2583的参数（英文）：

Topology
Secondary Side Regulator
Duty cycle (Max) (%)
95
Supply voltage (Max) (V)
15
UVLO thresholds on/off (V)
9/8.4
Features
Error Amplifier, Post Regulation, Soft Start, Synchronization Pin
Operating temperature range (C)
-40 to 85
Rating
Catalog
Frequency (Max) (kHz)
500
Gate drive (Typ) (A)
1.5

UCC2583具体的完整产品型号参数及价格（美元）：

UCC2583的完整型号有：UCC2583D、UCC2583DTR、UCC2583QTR，以下是这些产品的关键参数及官网采购报价：

UCC2583D，工作温度：-40 to 85，封装：SOIC (D)-14，包装数量MPQ：50个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UCC2583D的批量USD价格：2.785（1000+）

UCC2583DTR，工作温度：-40 to 85，封装：SOIC (D)-14，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UCC2583DTR的批量USD价格：2.379（1000+）

UCC2583QTR，工作温度：-40 to 85，封装：PLCC (FN)-20，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网UCC2583QTR的批量USD价格：2.379（1000+）

UCC2583的评估套件：

UCC2583的电路图解：

UCC2583的评估套件：