SG2525 系列
stm
microsemi
16引脚电压模式PWM电源控制芯片
SG2525 产品系列介绍
1. 概述
SG2525 产品系列是一类用途广泛且高度通用的集成电路（IC），主要设计用于脉冲宽度调制（PWM）控制应用。这些集成电路在电力电子领域发挥着至关重要的作用，能够对功率转换器、电机驱动器以及其他需要可变占空比脉冲信号的系统进行高效、精确的控制。
2. 主要特性
2.1 精确的 PWM 控制
- SG2525 能够对输出信号的脉冲宽度进行精确控制。它可以生成占空比范围广泛的 PWM 信号，通常为 0% 至 100%（不过在实际应用中，由于内部电路的限制，有效范围可能会略小）。这种精确控制对于开关电源等应用至关重要，因为占空比决定了输出电压或电流。
- 它内置了一个误差放大器，用于将电力系统输出的反馈信号与参考电压进行比较。基于此比较结果，误差放大器会调整 PWM 占空比，以维持所需的输出参数。
2.2 可调振荡器
- SG2525 中的振荡器具有高度可调性。用户只需改变外部电阻和电容的值，就可以设置 PWM 信号的工作频率。这种灵活性使得 SG2525 能够应用于各种具有不同频率要求的场合。例如，在低功率应用中，为了降低开关损耗，可能会选择较低的频率；而在高功率或高速应用中，则可以选择较高的频率。
- 振荡器频率通常可以在几kHz 到几百kHz 的范围内进行调整，适用于广泛的电力电子设计。
2.3 双输出
- SG2525 提供两个互补的输出信号。这些输出用于驱动外部功率开关，如 MOSFET 或 IGBT，可采用推挽或半桥配置。输出的互补特性确保功率开关以交替方式导通和关断，这对于高效的功率转换至关重要。
- 输出信号具有足够的驱动能力，可直接驱动中小型功率开关，在许多应用中减少了对额外缓冲电路的需求。
2.4 保护特性
- 过流保护：SG2525 具备过流保护机制。它可以检测功率电路中的电流，若电流超过预设阈值，将自动减小 PWM 占空比或关闭输出，以保护功率开关和其他组件免受损坏。
- 欠压锁定：设有欠压锁定功能，确保集成电路仅在电源电压处于安全且指定的范围内时工作。如果电源电压降至锁定阈值以下，SG2525 将禁用其输出，防止系统出现不当操作和潜在损坏。
3. 应用
3.1 开关电源
- 在离线式和 DC - DC 开关电源中，SG2525 用于控制功率晶体管或 MOSFET。通过调整 PWM 占空比，它可以将电源的输出电压调节为恒定值，而不受输入电压或负载电流变化的影响。例如，在笔记本电脑电源适配器中，SG2525 有助于将来自墙上插座的高压交流输入转换为稳定的低压直流输出，供笔记本电脑使用。
3.2 电机驱动器
- 对于直流电机驱动器，SG2525 可用于控制…… （原文此处未完整）
系列图片（16 张）
常见问答
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SG2525 - 型号列表共 7 个型号
| 制造商零件编号 | 价格/库存 | Number of PWM Outputs | Synchronous Pin | Operating Temperature | Mounting | Standard Package | Switching Frequency | Rise Time | Output Current | Minimum Operating Temperature | Supplier Package | Maximum Operating Temperature | Adjustable Output | On/Off Pin | Maximum Duty Cycle | Minimum Operating Supply Voltage | Pin Count | Fall Time | Packaging | Control Method | Maximum Operating Supply Voltage | Number of Outputs | Duty Cycle | Flyback | Buck | Cuk | Boost | Isolated | PWM Type | Frequency - Max | Voltage - Supply | Inverting | Doubler | Divider | Package/Case | Output Current | Switching Frequency | PCB | EU RoHS | Standard Package Name | Lead Shape | rohs | Product | Factory Pack Quantity | Maximum Operating Temperature | Mounting Style | Duty Cycle - Max | Output Voltage | Minimum Operating Temperature | Package / Case | RoHS | Rise Time | Fall Time | Package | Maximum Duty Cycle | Unit Pack | MOQ | Type | Operating Supply Voltage | Product Category | Package Type | Package Width | Package Length | Package Height | Matchcode | T(A) min | Standard Leadtime | T(A) max | I(out) | Automotive | f(s) | V(in) max | V(out) | Leadfree Defin. | Other Names | Switching Freq | Operating Temperature Classification | Rad Hardened | Operating Supply Voltage (Max) | Topology | Operating Supply Current | Description/Function | Brand | Input Voltage | Shutdown | Case | Output current | Integrated circuit type | Gross weight | Output voltage | Number of channels | Supply voltage | Multiplicity | Kind of integrated circuit | Collective package [pcs] | spg | Operating Temperature Range | CommonModeRejectionRatio | Current,InputBias | Current,InputOffset | Current,Output | Current,Supply | Frequency,Oscillator | PackageType | PowerDissipation | PrimaryType | Regulation,Line | Regulation,Load | Temperature,Operating,Range | Time,Fall | Time,Rise | Transconductance | Voltage,Gain | Voltage,Input | Voltage,Noise | Voltage,Offset | Voltage,Output | Voltage,Output,High | Voltage,Output,Low | Voltage,Supply | Voltage,Supply,RejectionRatio | Dimensions | Height | Length | Maximum Switching Frequency | Mounting Type | Typical Operating Supply Voltage | Width | 倍增器 | 分频器 | PWM 类型 | 操作温度 | 电压 - 电源 | 降压 | 反向 | 封装/外壳 | 反激式 | 频率 - 最大值 | 占空比 | 输出数 | 升压 | 最大负载循环 | 控制方法 | 典型工作电源电压 | 下降时间 | 上升时间 | 最高工作温度 | 安装类型 | 开/关端子 | 高度 | 最低工作温度 | 最高开关频率 | 宽度 | 封装类型 | 引脚数目 | 长度 | PWM输出数目 | 同步引脚 | 输出电流 | 尺寸 | Isolation | Series |
|---|
 | 询价 | 2 | Yes | -25 to 85 °C | Surface Mount | Tape & Reel | 400 | 100 | 400(Max) | -25 | SO N | 85 | No | Yes | 49(Typ) | 4.5 | 16 | 50 | Tape and Reel | Voltage Mode PWM Controller | 35 | 2 | 49% | No | No | No | No | No | Voltage Mode | 500kHz | 8 V ~ 35 V | No | No | No | 16-SOIC (0.154", 3.90mm Width) | 400(Max) mA | 400 kHz | 16 | Compliant | SOIC | Gull-wing | Lead free / RoHS Compliant | Voltage Controllers | 2500 | + 85 C | SMD/SMT | 49 % | 5.1 V | - 25 C | SO-16 | RoHS Compliant | 100 ns | 50 ns | 16SO N | 49(Typ) % | 2500 | 2500 | SMPS | 8 V to 35 V | Switching Controllers | SO N | 4(Max) | 10(Max) | 1.6(Max) | SG2525AP013TR | -55°C | 15 weeks | 150°C | 0.5A | NO | 500000Hz | 35V | 5.1V | RoHS-conform | 497-2039-2 | 400 KHz | Commercial | No | 35 V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
 | 询价 | 2 | Yes | -25°C ~ 85°C | Surface Mount | 1,000 | 350 | 100 | 400(Max) | -25 | SOWB | 85 | No | Yes | 49(Typ) | 4.5 | 16 | 50 | Tube | Voltage Mode PWM Controller | 35 | 2 | 49% | Yes | Yes | No | No | No | Voltage Mode | 350kHz | 8 V ~ 35 V | No | No | No | 16-SOIC (0.154", 3.90mm Width) | 500 mA | 350 kHz | 16 | Compliant | - | - | Lead free / RoHS Compliant | Regulating Pulse Width Modulator | 1 | + 85 C | SMD/SMT | 49 % | 5.1 V | - 25 C | SOIC-16 | RoHS Compliant | 100 ns | 50 ns | - | - | - | - | - | 8 V to 35 V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Forward|Push-Pull | 14 mA | Regulating Pulse Width Modulator | Microsemi | 8 V to 35 V | Shutdown | - | - | - | - | - | - | - | - | - | - | - | - 25 C to + 85 C | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
 | 询价 | 2 | Yes | -25 to 85 °C | Through Hole | Rail / Tube | 400 | 100 | 400(Max) | -25 | PDIP | 85 | No | Yes | 49(Typ) | 4.5 | 16 | 50 | Tube | Voltage Mode PWM Controller | 35 | 2 | 49% | No | No | No | No | No | Voltage Mode | 500kHz | 8 V ~ 35 V | No | No | No | 16-DIP (0.300", 7.62mm) | 400(Max) mA | 400 kHz | - | Compliant | PDIP | Through Hole | Lead free / RoHS Compliant | Voltage Controllers | 25 | + 85 C | Through Hole | 49 % | 5.15 V | - 25 C | PDIP-16 | RoHS Compliant | 100 ns | 50 ns | 16PDIP | 49(Typ) % | 25 | 25 | SMPS | - | Switching Controllers | PDIP | - | - | - | SG2525AN | -55°C | 15 weeks | 150°C | 0.5A | NO | 500000Hz | 35V | 5.1V | RoHS-conform | 497-2038-5 | 400 KHz | Commercial | No | 35 V | - | - | - | - | - | - | DIP16 | 500mA | driver | 1.89 g | 0.2...5.6V | 2 | 8...35V DC | 1 | PWM controller | 1000 | 1000 | - | 75dB | 1μA | 1μA | 0to100mA(SteadyState),0to400mA(Peak) | 14mA | 400kHz | DIP-16 | 1000mW | Controllers | 10mV | 20mV | -25to+85°C | 50ns | 100ns | 1.5ms | 75dB | 35V | 40μV | 0.5mV | 5.1V | 18V | 1V | 4.5to35V | 60dB | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 询价 | 2 | Yes | -25 to 85 °C | Surface Mount | Rail / Tube | 400 | 100 | 400(Max) | -25 | SO N | 85 | No | Yes | 49(Typ) | 4.5 | 16 | 50 | Tube | Voltage Mode PWM Controller | 35 | 2 | 49% | No | No | No | No | No | Voltage Mode | 500kHz | 8 V ~ 35 V | No | No | No | 16-SOIC (0.154", 3.90mm Width) | 400(Max) mA | 400 kHz | 16 | Compliant | SOIC | Gull-wing | Lead free / RoHS Compliant | Voltage Controllers | 50 | +85 °C | SMD/SMT | 49 % | 5.15 V | -25 °C | SO-16 | RoHS Compliant | 100ns | 50ns | 16SO N | 49(Typ) % | 50 | 1000 | PWM Controllers | 8 V to 35 V | Switching Controllers | SO N | 4(Max) | 10(Max) | 1.6(Max) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 14 mA | Regulating pulse width modulators | STMicroelectronics | 8 V to 35 V | Shutdown | SO16 | 500mA | driver | 0.62 g | 0.2...5.6V | 2 | 8...35V DC | 1 | PWM controller | 150 | 150 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 10 x 4 x 1.65mm | 1.65mm | 10mm | 400 kHz | Surface Mount | 4.5 → 35 V | 4mm | No | No | Voltage Mode | -25°C ~ 85°C | 8 V ~ 35 V | No | No | 16-SOIC (0.154", 3.90mm Width) | No | 500kHz | 49% | 2 | No | 49% | 电压 | 4.5 → 35 V | 50ns | 100ns | +85 °C | 表面贴装 | 是 | 1.65mm | -25 °C | 400 kHz | 4mm | SOIC | 16 | 10mm | 2 | 是 | 400 mA | 10 x 4 x 1.65mm | Non-Isolated | SG2525 |
 | 询价 | 2 | Yes | - | Through Hole | - | 350 | 100 | 400(Max) | -25 | CDIP | 85 | No | Yes | 49(Typ) | 4.5 | 16 | 50 | - | Voltage Mode PWM Controller | 35 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 16 | - | CDIP | Through Hole | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Forward|Push-Pull | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 询价 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
 | 询价 | - | - | -25°C ~ 85°C | - | 2,500 | - | - | - | - | - | - | - | - | - | - | - | - | Tube | - | - | 2 | 49% | Yes | Yes | No | No | No | Voltage Mode | 350kHz | 8 V ~ 35 V | No | No | No | 16-DIP | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
共 7 个型号