SG2524D Microsemi Analog Mixed Signal Group, SG2524D Datasheet

IC PWM POWER SUPPLY SW 16SOIC

SG2524D

Manufacturer Part Number
SG2524D
Description
IC PWM POWER SUPPLY SW 16SOIC
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of SG2524D

Pwm Type
Voltage Mode
Number Of Outputs
2
Frequency - Max
400kHz
Duty Cycle
49%
Voltage - Supply
8 V ~ 40 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
Yes
Divider
No
Cuk
No
Isolated
No
Operating Temperature
-25°C ~ 85°C
Package / Case
16-SOIC
Frequency-max
400kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SG2524D

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG2524D
Manufacturer:
ST
0
Part Number:
SG2524D
Manufacturer:
MSC
Quantity:
20 000
Part Number:
SG2524DR
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
SG2524DR
Manufacturer:
TI
Quantity:
2 500
Part Number:
SG2524DR
0
Part Number:
SG2524DRG4
0
Rev 1.1a 03/18/2005
Copyright
DESCRIPTION
This monolithic integrated circuit contains all the control circuitry for a
regulating power supply inverter or switching regulator. Included in a 16-
pin dual-in-line package is the voltage reference, error amplifier, oscillator,
pulse width modulator, pulse steering flip-flop, dual alternating output
switches and current limiting and shut-down circuitry. This device can be
used for switching regulators of either polarity, transformer coupled DC to
DC converters, transformerless voltage doublers and polarity converters,
as well as other power applications. The SG1524 is specified for operation
over the full military ambient temperature range of -55°C to +125°C, the
SG2524 for -25°C to +85°C, and the SG3524 is designed for commercial
applications of 0°C to +70°C.
BLOCK DIAGRAM
1994
REGULATING PULSE WIDTH MODULATOR
1
FEATURES
HIGH RELIABILITY FEATURES - SG1524
8V to 40V operation
5V reference
Reference line and load regulation of 0.4%
Reference temperature coefficient < ± 1%
100Hz to 300KHz oscillator range
Excellent external sync capability
Dual 50mA output transistors
Current limit circuitry
Complete PWM power control circuitry
Single ended or push-pull outputs
Total supply current less than 10mA
Available to MIL-STD-883B and DESC SMD
MIL-M-38510/12601BEA - JAN1524J
Radiation data available
LMI level "S" processing available
SG1524/SG2524/SG3524
11861 Western Avenue
(714) 898-8121
Garden Grove, CA 92841
FAX: (714) 893-2570
Microsemi. Inc.

Related parts for SG2524D

SG2524D Summary of contents

Page 1

DESCRIPTION This monolithic integrated circuit contains all the control circuitry for a regulating power supply inverter or switching regulator. Included in a 16- pin dual-in-line package is the voltage reference, error amplifier, oscillator, pulse width modulator, pulse steering flip-flop, dual ...

Page 2

ABSOLUTE MAXIMUM RATINGS Input Voltage (+V ) ............................................................. 42V IN Collector Voltage ................................................................ 40V Logic Inputs ........................................................... -0.3V to 5.5V Current Limit Sense Inputs ................................... -0.3V to 0.3V Output Current (each transistor) .................................... 100mA Reference Load Current .................................................. 50mA Note ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter Oscillator Section (Note 4) Initial Accuracy Voltage Stability Maximum Frequency Sawtooth Peak Voltage Sawtooth Valley Voltage Clock Amplitude Clock Pulse Width Error Amplifier Section (Note 5) Input Offset Voltage Input Bias Current Input Offset Current DC Open ...

Page 4

APPLICATION NOTES OSCILLATOR The oscillator in the SG1524 uses an external resistor R establish a constant charging current into an external capacitor C . While this uses more current than a series-connected RC provides a linear ramp voltage ...

Page 5

APPLICATION NOTES (continued) CURRENT LIMITING The current limiting circuitry of the SG1524 is shown in Figure 3. By matching the base-emitter voltages of Q1 and Q2, and assuming a negligible voltage drop across R1: C.L. Threshold = V (Q1) + ...

Page 6

... J - PACKAGE JAN1524J SG1524J/DESC SG1524J SG2524J SG3524J 16-PIN PLASTIC DIP SG2524N N - PACKAGE SG3524N 16-PIN NARROW BODY SG2524D PLASTIC S.O.I.C. SG3524D D - PACKAGE RoHS / Pb-free transition DC:0440 20-PIN CERAMIC SG1524L/883B LEADLESS CHIP CARRIER SG1524L L- PACKAGE *RoHS compliant Note 1. Contact factory for JAN and DESC product availablity. ...

Related keywords