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SG3526BDW

Description
Voltage Mode PWM Controller 100mA 500kHz 18-Pin SOIC W
File Size557KB,12 Pages
ManufacturerMicrosemi
Websitehttps://www.microsemi.com
Environmental Compliance
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SG3526BDW Overview

Voltage Mode PWM Controller 100mA 500kHz 18-Pin SOIC W

SG3526BDW Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
TypeVoltage Mode PWM Controller
Control MethodVoltage Mode PWM Controller
TopologyBuck|Flyback|Forward|Half-Bridge|Push-Pull
Number of PWM Outputs2
Switching Frequency (kHz)500
Maximum Duty Cycle (%)49(Typ)
Rise Time (ns)300
Output Current (mA)100(Max)
Fall Time (ns)100
Operating Supply Voltage (V)4.5 to 35
Minimum Operating Supply Voltage (V)4.5
Maximum Operating Supply Voltage (V)35
Adjustable OutputNo
On/Off PinYes
Synchronous PinNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
Supplier PackageSOIC W
Pin Count18
Standard Package NameSOP
MountingSurface Mount
Package Height2.55(Max)
Package Length11.7(Max)
Package Width7.6(Max)
PCB changed18
Lead ShapeGull-wing
SG1526B/SG2526B/SG3526B
REGULATING PULSE WIDTH MODULATOR
DESCRIPTION
The SG1526B is a high-performance pulse width modulator
for switching power supplies which offers improved
functional and electrical characteristics over the industry-
standard SG1526. A direct pin-for-pin replacement for the
earlier device with all its features, it incorporates the
following enhancements: a bandgap reference circuit for
improved regulation and drift characteristics, improved
undervoltage lockout, lower temperature coefficients on
oscillator frequency and current-sense threshold, tighter
tolerance on softstart time, much faster SHUTDOWN
response, improved double-pulse supperession logic for
higher speed operation, and an improved output driver
design with low shoot-through current, and faster rise and
fall times. This versatile device can be used to implement
single-ended or push-pull switching regulators of either
polarity, both transformerless and transformer-coupled. The
SG1526B is specified for operation over the full military
ambient temperature range of -55°C to 150°C. The
SG2526B is characterized for the industrial range of -25°C
to 150°C, and the SG3526B is designed for the commercial
range of 0°C to 125°C.
FEATURES
8V to 35V Operation
5V Low drift 1% Bandgap Reference
1Hz to 500kHz Oscillator Range
Dual 100mA Source/Sink
Digital Current Limiting
Double Pulse Suppression
Programmable Deadtime
Improved Undervoltage Lockout
Single Pulse Metering
Programmable Soft-start
Wide current Limit Common Mode Range
TTL/CMOS Compatible Logic Ports
Symmetry Correction Capability
Guaranteed 6 Unit Synchronization
Shoot-through Currents Less than 100mA
Improved Shutdown Delay
Improved Rise and Fall Time
HIGH RELIABILITY FEATURES
Available To MIL-STD-883, ¶ 1.2.1
Available to DSCC - Standard Microcircuit
Drawing (SMD)
MIL-M38510/12603BVA - SG1526BJ-JAN
Radiation data available
MSC-AMS Level "S" Processing Available
BLOCK DIAGRAM
V
REF
+V
IN
GROUND
R
D
R
T
Reference
Regulator
Undervoltage
Lockout
+V
C
To Internal
Circuitry
Oscillator
SYNC
OUTPUT A
C
T
RESET
C
SOFTSTART
COMPENSATION
+ ERROR
Soft
Start
+V
IN
S
Amp
D
Q
METERING
F/F
Q
S
T
R
Q
Q
Q
TOGGLE
F/F
OUTPUT B
MEMORY
F/F
— ERROR
+ C.S.
— C.S.
SHUTDOWN
December
2014 Rev1.2
www.microsemi.com
© 2014 Microsemi Corporation
1

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SG3526BDW SG2526BDW SG3526BN SG1526BJ SG1526BJ-883B SG2526BN SG1526BL M38510/12603BVA
Description Voltage Mode PWM Controller 100mA 500kHz 18-Pin SOIC W Voltage Mode PWM Controller 100mA 500kHz 18-Pin SOIC W Voltage Mode PWM Controller 100mA 500kHz 18-Pin PDIP Tube Voltage Mode PWM Controller 100mA 500kHz 18-Pin CDIP Tube Voltage Mode PWM Controller 100mA 500kHz 18-Pin CDIP Tube Voltage Mode PWM Controller 100mA 500kHz 18-Pin PDIP Voltage Mode PWM Controller 100mA 500kHz 20-Pin CLLCC Voltage Mode PWM Controller 100mA 500kHz 18-Pin CDIP
EU restricts the use of certain hazardous substances Compliant Compliant Compliant with Exemption Not Compliant Not Compliant Compliant Not Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active Active Active Active Active
Type Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller
Control Method Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller Voltage Mode PWM Controller
Topology Buck|Flyback|Forward|Half-Bridge|Push-Pull Push-Pull|Forward|Half-Bridge|Flyback|Buck Forward|Flyback|Buck|Push-Pull|Half-Bridge Buck|Flyback|Push-Pull|Half-Bridge|Forward Push-Pull|Half-Bridge|Forward|Flyback|Buck Push-Pull|Half-Bridge|Forward|Flyback|Buck Forward|Half-Bridge|Push-Pull|Buck|Flyback Buck|Flyback|Forward|Half-Bridge|Push-Pull
Number of PWM Outputs 2 2 2 2 2 2 2 2
Switching Frequency (kHz) 500 500 500 500 500 500 500 500
Maximum Duty Cycle (%) 49(Typ) 49(Typ) 49(Typ) 49(Typ) 49(Typ) 49(Typ) 49(Typ) 49(Typ)
Rise Time (ns) 300 300 300 300 300 300 300 300
Output Current (mA) 100(Max) 100(Max) 100(Max) 100(Max) 100(Max) 100(Max) 100(Max) 100(Max)
Fall Time (ns) 100 100 100 100 100 100 100 100
Operating Supply Voltage (V) 4.5 to 35 4.5 to 35 4.5 to 35 4.5 to 35 4.5 to 35 4.5 to 35 4.5 to 35 4.5 to 35
Minimum Operating Supply Voltage (V) 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
Maximum Operating Supply Voltage (V) 35 35 35 35 35 35 35 35
Adjustable Output No No No No No No No No
On/Off Pin Yes Yes Yes Yes Yes Yes Yes Yes
Synchronous Pin No No No No No No No No
Supplier Temperature Grade Commercial Industrial Commercial Military Military Industrial Military Military
Supplier Package SOIC W SOIC W PDIP CDIP CDIP PDIP CLLCC CDIP
Pin Count 18 18 18 18 18 18 20 18
Standard Package Name SOP SOP DIP DIP DIP DIP LLCC DIP
Mounting Surface Mount Surface Mount Through Hole Through Hole Through Hole Through Hole Surface Mount Through Hole
Package Length 11.7(Max) 11.7(Max) 23.34(Max) 24.38(Max) 24.38(Max) 23.34(Max) 9.14(Max) 24.38(Max)
Package Width 7.6(Max) 7.6(Max) 7.11(Max) 7.11(Max) 7.11(Max) 7.11(Max) 9.14(Max) 7.11(Max)
PCB changed 18 18 18 18 18 18 20 18
Lead Shape Gull-wing Gull-wing Through Hole Through Hole Through Hole Through Hole No Lead Through Hole
Minimum Operating Temperature (°C) - -25 - -55 -55 -25 -55 -
Maximum Operating Temperature (°C) 70 85 70 125 125 85 125 -
Package Height 2.55(Max) 2.55(Max) 3.3 - - 3.3 2.29(Max) -
HTS - 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 - -
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