7802801EA MICROSEMI, 7802801EA Datasheet

7802801EA

Manufacturer Part Number
7802801EA
Description
Manufacturer
MICROSEMI
Datasheet

Specifications of 7802801EA

Number Of Pwm Outputs
2
On/off Pin
Yes
Adjustable Output
No
Topology
Push-Pull
Switching Freq
300KHz
Operating Supply Voltage (max)
40V
Synchronous Pin
No
Operating Temperature Classification
Military
Mounting
Through Hole
Pin Count
16
Package Type
CDIP
Lead Free Status / Rohs Status
Supplier Unconfirmed

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
7802801EA
Manufacturer:
S
Quantity:
3
Part Number:
7802801EA
Manufacturer:
TI
Quantity:
1 382
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 7802801EA

7802801EA Summary of contents

Page 1

... Single ended or push-pull outputs Total supply current less than 10mA HIGH RELIABILITY FEATURES - SG1524 Available to MIL-STD-883B and DESC SMD MIL-M-38510/12601BEA - JAN1524J Radiation data available LMI level "S" processing available 1 SG1524/SG2524/SG3524 Microsemi. Inc. 11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570 ...

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

CONNECTION DIAGRAMS & ORDERING INFORMATION Package Part No. 16-PIN CERAMIC DIP SG1524J/883B 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 / ...

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