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  • 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.

    主要特性

    • 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

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SG3525AN PDIP 16 Tube
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SG3525AP013TR SO-16 Tape And Reel
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SG3525AP SO-16 Tube
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SG3525AN

封装

PDIP 16

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Tube

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0.6384*

Distributor availability ofSG3525AN

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DIGIKEY WORLDWIDE 2743 1 Order Now
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FUTURE WORLDWIDE 4322 1 Order Now
ARROW EUROPE 1844 0 Order Now
Newark Element14 AMERICA 1177 0 Order Now
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库存

465

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1711

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Unit Price (US$)

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SG3525AP013TR

封装

SO-16

包装类型

Tape And Reel

Unit Price (US$)

0.6384*

Distributor availability ofSG3525AP013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4408 1 Order Now
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MOUSER WORLDWIDE 892 1 Order Now
Farnell Element14 EUROPE 2202 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

4408

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

365

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

892

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2202

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

2500

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

0.6384

数量

1000

ECCN (US)

EAR99

Country of Origin

CHINA

SG3525AP

封装

SO-16

包装类型

Tube

Unit Price (US$)

0.6384*

Distributor availability ofSG3525AP

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1200 1 Order Now
RS COMPONENTS EUROPE 1628 2 Order Now
AVNET AMERICA 1314 0 Order Now
FUTURE WORLDWIDE 3700 1 Order Now
ARROW EUROPE 2040 0 Order Now
Newark Element14 AMERICA 4 0 Order Now
ARROW AMERICA 195 1000 Order Now
MOUSER WORLDWIDE 1020 1 Order Now
Farnell Element14 EUROPE 937 1 Order Now
ANGLIA Live EUROPE 1680 1 Order Now
RUTRONIK EUROPE 500 50 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

1200

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1628

Min.Order

2

地区

EUROPE Order Now

AVNET

库存

1314

Min.Order

0

地区

AMERICA Order Now

FUTURE

库存

3700

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2040

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

4

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

195

Min.Order

1000

地区

AMERICA Order Now

MOUSER

库存

1020

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

937

Min.Order

1

地区

EUROPE Order Now

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库存

1680

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地区

EUROPE Order Now

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库存

500

Min.Order

50

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

0.6384

数量

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
SG3525AN
Active
PDIP 16 工业 Ecopack2
SG3525AP
Active
SO-16 工业 Ecopack2
SG3525AP013TR
Active
SO-16 工业 Ecopack2

SG3525AN

Package:

PDIP 16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG3525AP

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG3525AP013TR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.