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参数资料
| 型号： | UCC283TD-3TR |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | Low noise low drop voltage regulator with shutdown function |
| 中文描述： | 积极的固定电压稳压器 |
| 文件页数： | 5/19页 |
| 文件大小： | 296K |
| 代理商： | UCC283TD-3TR |
SLUS458C AUGUST 2001 REVISED SEPTEMBER 2003
5
www.ti.com
pin assignments
COMP:
This pin provides the output of the error amplifier for compensation. In addition, the COMP pin is
frequently used as a control port by utilizing a secondary-side error amplifier to send an error signal across the
secondary-primary isolation boundary through an opto-isolator.
CS:
The current sense pin is the non-inverting input to the PWM comparator. This is compared to a signal
proportional to the error amplifier output voltage. A voltage ramp can be applied to this pin to run the device with
a voltage mode control configuration.
FB:
This pin is the inverting input to the error amplifier. The non-inverting input to the error amplifier is internally
trimmed to 2.5 V
±
1%.
GND:
Ground return pin for the output driver stage and the logic level controller section.
OUT:
The output of the on-chip drive stage. OUT is intended to directly drive a MOSFET. The OUT pin in the
UCC38C40, UCC38C42 and UCC38C43 is the same frequency as the oscillator, and can operate near 100%
duty cycle. In the UCC38C41, UCC38C44 and the UCC38C45, the frequency of OUT is one-half that of the
oscillator due to an internal T flipflop. This limits the maximum duty cycle to < 50%.
RT/CT:
Timing resistor and timing capacitor. The timing capacitor should be connected to the device ground
using minimal trace length.
VDD:
Power supply pin for the device. This pin should be bypassed with a 0.1-
μ
F capacitor with minimal trace
lengths. Additional capacitance may be needed to provide hold up power to the device during startup.
VREF:
5-V reference. For stability, the reference should be bypassed with a 0.1-
μ
F capacitor to ground using
the minimal trace length possible.
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相关代理商/技术参数 |
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| UCC283TD-5 | 功能描述:IC REG LDO 5V 3A TO-263 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式和可调式 输出电压:3.3V，1.25 V ~ 5.7 V 输入电压:4.5 V ~ 7 V 电压 - 压降（标准）:1.1V @ 1A 稳压器数量:2 电流 - 输出:1A 电流 - 限制（最小）:1A 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-252-5，DPak（4 引线 + 接片），TO-252AD 供应商设备封装:PPAK 包装:管件 其它名称:497-3576-5 |
| UCC283TD-5TR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Fixed Voltage Regulator |
| UCC283TDADJ | 制造商:Texas Instruments 功能描述: |
| UCC283TD-ADJ | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-DROPOUT 3-A LINEAR REGULATOR FAMILY |
| UCC283TD-ADJTR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Adjustable Voltage Regulator |
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