概述
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ±1 % and the input common-mode range of the error amplifier includes the reference voltage eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the CT and the discharge terminals provide a wide range of dead time ad- justment.These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuity and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown,as well as soft-start recycle with longer shutdown commands. These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages. This lockout circuitry includes approximately 500 mV of hysteresis for jitter-free operation. Another feature of these PWM circuits is a latch following the comparator. Once a PWM pulses has been terminated for any reason,the outputs will remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200 mA. The SG3525A output stage features NOR logic, giving a LOW output for an OFF state.

  • 所有功能

    • DUAL SOURCE/SINK OUTPUT DRIVERS
    • LATCHING PWM TO PREVENT MULTIPLE PULSES
    • PULSE-BY-PULSE SHUTDOWN
    • INTERNAL SOFT-START
    • 8 TO 35 V OPERATION
    • 100 Hz TO 500 KHz OSCILLATOR RANGE
    • 5.1 V REFERENCE TRIMMED TO ± 1 %
    • ADJUSTABLE DEADTIME CONTROL
    • INPUT UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
    • SEPARATE OSCILLATOR SYNC TERMINAL

电路原理图

EDA符号、封装和3D模型

STMicroelectronics - SG2525

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Symbols

符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
SG2525AN
批量生产
PDIP 16 工业 Ecopack2
SG2525AP
批量生产
SO-16 工业 Ecopack2
SG2525AP013TR
批量生产
SO-16 工业 Ecopack2

SG2525AN

Package:

PDIP 16

Material Declaration**:

Marketing Status

批量生产

Package

PDIP 16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG2525AP

Package:

SO-16

Material Declaration**:

PDF

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG2525AP013TR

Package:

SO-16

Material Declaration**:

PDF

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

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产品型号
Order from distributors
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
SG2525AN Available at distributors

经销商的可用性 SG2525AN

代理商名称
地区 库存 最小订购量 第三方链接

代理商库存报告日期:

无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube PDIP 16 - - CHINA
SG2525AP Available at distributors

经销商的可用性 SG2525AP

代理商名称
地区 库存 最小订购量 第三方链接

代理商库存报告日期:

无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube SO-16 - - CHINA
SG2525AP013TR Available at distributors

经销商的可用性 SG2525AP013TR

代理商名称
地区 库存 最小订购量 第三方链接

代理商库存报告日期:

无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape and Reel SO-16 - - CHINA

SG2525AN 批量生产

封装:
PDIP 16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SG2525AN

ECCN (EU):

NEC

包装类型:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

代理商名称

代理商库存报告日期:

SG2525AP 批量生产

封装:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SG2525AP

ECCN (EU):

NEC

包装类型:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

代理商名称

代理商库存报告日期:

SG2525AP013TR 批量生产

封装:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

SG2525AP013TR

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

代理商名称

代理商库存报告日期:

Swipe or click the button to explore more details Don't show this again

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商