SG3524BDW Microsemi Analog Mixed Signal Group, SG3524BDW Datasheet

IC PWM POWER SUPPLY SW 16SOIC

SG3524BDW

Manufacturer Part Number
SG3524BDW
Description
IC PWM POWER SUPPLY SW 16SOIC
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of SG3524BDW

Pwm Type
Voltage Mode
Number Of Outputs
2
Frequency - Max
600kHz
Duty Cycle
49%
Voltage - Supply
7 V ~ 40 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
0°C ~ 70°C
Package / Case
16-SOIC
Frequency-max
600kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SG3524BDWR
SG3524BDWR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG3524BDW
Manufacturer:
ST
0
Part Number:
SG3524BDW
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Rev 1.3a 3.21.2005
Copyright  2000
DESCRIPTION
The SG1524B is a pulse width modulator for switching power supplies
which features improved performance over industry standards like the
SG1524.
combines advanced processing techniques and circuit design to provide
improved reference accuracy, and extended common mode range at the
error amplifier and current limit inputs. A DC-coupled flip-flop eliminates
triggering and glitch problems, and a PWM data latch prevents edge
oscillations. The circuit incorporates true digital shutdown for high speed
response, while an undervoltage lockout circuit prevents spurious outputs
when the supply voltage is too low for stable operation. Full double-pulse
suppression logic insures alternating output pulses when the Shutdown
pin is used for pulse-by-pulse current limiting. The SG1524B is specified
for operation over the full military ambient temperature range of -55°C to
125°C. The SG2524B is characterized for the industrial range of -25°C to
85°C, and the SG3524B is designed for the commercial range of 0°C
to 70°C.
DESCRIPTION
NON-INVERTING
+C.L. SENSE
-C.L. SENSE
INVERTING
GROUND
+V
A direct pin-for-pin replacement for the earlier device, it
R
C
IN
T
T
Error
C.L.
Reference
Regulator
Oscillator
+V
COMPENSATION
IN
To Internal
Circuitry
P.W.M.
V
REF
REGULATING PULSE WIDTH MODULATOR
SHUTDOWN
OSC
Undervoltage
Lockout
LATCH
D
PWM
S
1
Q
Q
MEMORY
S
R
F/F
Q
SG1524B/SG2524B/SG3524B
FEATURES
• • • • • 7V to 40V operation
• • • • • 5V reference trimmed to ± ± ± ± ± 1%
• • • • • 100Hz to 400KHz oscillator range
• • • • • Excellent external sync capability
• • • • • Dual 100mA output transistors
• • • • • Wide current limit common mode range
• • • • • DC-coupled toggle flip-flop
• • • • • PWM data latch
• • • • • Undervoltage lockout
• • • • • Full double-pulse suppression logic
• • • • • 60V output collectors
HIGH RELIABILITY FEATURES
♦ ♦ ♦ ♦ ♦ Available to MIL-STD-883 and DESC SMD
♦ ♦ ♦ ♦ ♦ Scheduled for MIL-M-38510 QPL listing
♦ ♦ ♦ ♦ ♦ Radiation data available
♦ ♦ ♦ ♦ ♦ LMI level "S" processing available
TOGGLE
T
- SG1524B
F/F
Q
Q
11861 Western Avenue ∞ ∞ ∞ ∞ ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ ∞ ∞ ∞ ∞ FAX: (714) 893-2570
COLLECTOR A
EMITTER A
COLLECTOR B
EMITTER B
Microsemi Inc.

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SG3524BDW Summary of contents

Page 1

DESCRIPTION The SG1524B is a pulse width modulator for switching power supplies which features improved performance over industry standards like the SG1524. A direct pin-for-pin replacement for the earlier device, it combines advanced processing techniques and circuit design to provide ...

Page 2

ABSOLUTE MAXIMUM RATINGS Input Voltage (+V ) .......................................................... IN Collector Voltage ............................................................. Logic Inputs .......................................................... Current Limit Sense Inputs ..................................... Output Current (each transistor) ................................. Reference Load Current ............................................... Note 1. Values beyond which damage may occur. THERMAL DATA J ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter Oscillator Section (Note 4) Initial Accuracy Voltage Stability Temperature Stability (Note 7) Minimum Frequency (Note 7) Maximum Frequency Sawtooth Peak Voltage Sawtooth Valley Voltage Clock Amplitude Clock Pulse Width Error Amplifier Section (Note 5) Input Offset Voltage ...

Page 4

TYPICAL CHARACTERISTIC CURVES 100 Rev 1.3a Copyright  2000 1000000 100000 1nF 3nF 10000 10nF 0.1uF 1000 1uF 100 1000 10000 100000 R (Ohm) T Figure 1 ...

Page 5

... SG2524BJ SG3524BJ 16-PIN PLASTIC DIP SG2524BN N - PACKAGE SG3524BN 16-PIN WIDE BODY SG2524BDW PLASTIC S.O.I.C. SG3524BDW DW - PACKAGE 20-PIN CERAMIC SG1524BL/883B LEADLESS CHIP CARRIER SG1524BL L- PACKAGE Note 1. Contact factory for JAN and DESC product availablity. 2. All packages are viewed from the top. Rev 1.3a Copyright  ...

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