ZHCS519G April   2000  – May 2019 LM2585

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      12V 反激式稳压器设计示例
  4. 4 修订历史记录
  5. 5 Pin Configurations
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Ratings
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: 3.3 V
    6. 6.6  Electrical Characteristics: 5 V
    7. 6.7  Electrical Characteristics: 12-V
    8. 6.8  Electrical Characteristics: Adjustable
    9. 6.9  Electrical Characteristics: All Versions
    10. 6.10 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Step-Up (Boost) Regulator Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Boost Regulator Applications
      2. 8.2.2 Typical Flyback Regulator Applications
        1. 8.2.2.1 Transformer Selection (T)
        2. 8.2.2.2 Transformer Footprints
          1. 8.2.2.2.0.1 T6
          2. 8.2.2.2.0.2 T6
      3. 8.2.3 Design Requirements
      4. 8.2.4 Detailed Design Procedure
        1. 8.2.4.1 Custom Design With WEBENCH® Tools
        2. 8.2.4.2 Programming Output Voltage (Selecting R1 And R2)
        3. 8.2.4.3 Short Circuit Condition
        4. 8.2.4.4 Flyback Regulator Input Capacitors
        5. 8.2.4.5 Switch Voltage Limits
        6. 8.2.4.6 Output Voltage Limitations
        7. 8.2.4.7 Noisy Input Line Condition
        8. 8.2.4.8 Stability
      5. 8.2.5 Application Curve
    3. 8.3 Additional Application Examples
      1. 8.3.1 Test Circuits
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Heat Sink/Thermal Considerations
  10. 10器件和文档支持
    1. 10.1 器件支持
      1. 10.1.1 第三方产品免责声明
      2. 10.1.2 开发支持
        1. 10.1.2.1 使用 WEBENCH® 工具创建定制设计
    2. 10.2 接收文档更新通知
    3. 10.3 社区资源
    4. 10.4 商标
    5. 10.5 静电放电警告
    6. 10.6 Glossary
  11. 11机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.8 Electrical Characteristics: Adjustable

PARAMETER TEST CONDITIONS TYP MIN MAX UNIT
SYSTEM PARAMETERS Test Circuit of Figure 48(1)
VOUT Output Voltage VIN = 4V to 10V 12.0 11.52/11.40 12.48/12.60 V
ILOAD = 0.2A to 0.8A
ΔVOUT/ Line Regulation VIN = 4V to 10V 20 100/200 mV
ΔVIN ILOAD = 0.2A
ΔVOUT/ Load Regulation VIN = 10V 20 100/200 mV
ΔILOAD ILOAD = 0.2A to 0.8A
η Efficiency VIN = 10V, ILOAD = 0.6A 93%
UNIQUE DEVICE PARAMETERS(2)
VREF Output Reference Measured at Feedback Pin 1.230 1.208/1.205 1.252/1.255 V
Voltage VCOMP = 1.0V
ΔVREF Reference Voltage VIN = 4V to 40V 1.5 mV
Line Regulation
GM Error Amp ICOMP = −30 μA to +30 μA 3.200 1.800 6.000 mmho
Transconductance VCOMP = 1.0V
AVOL Error Amp VCOMP = 0.5V to 1.6V 670 400/200 V/V
Voltage Gain RCOMP = 1.0 MΩ (3)
IB Error Amp VCOMP = 1.0V 125 425/600 nA
Input Bias Current