SG3524B MICROSEMI [Microsemi Corporation], SG3524B Datasheet

no-image

SG3524B

Manufacturer Part Number
SG3524B
Description
REGULATING PULSE WIDTH MODULATOR
Manufacturer
MICROSEMI [Microsemi Corporation]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG3524BDW
Manufacturer:
ST
0
Part Number:
SG3524BDW
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
SG3524BJ
Quantity:
2 264
Part Number:
SG3524BJ
Manufacturer:
INTEL
Quantity:
780
Part Number:
SG3524BJ/12219
Manufacturer:
P
Quantity:
6 231
Part Number:
SG3524BOW
Manufacturer:
MSC
Quantity:
20 000
2/00 Rev 1.3 2/00
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
C.L.
Error
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
L
INFINITY Microelectronics Inc.
(714) 898-8121 ∞ ∞ ∞ ∞ ∞ FAX: (714) 893-2570
COLLECTOR A
EMITTER A
COLLECTOR B
EMITTER B

Related parts for SG3524B

SG3524B Summary of contents

Page 1

... 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 ...

Page 2

... Note 2: Range over which the device is functional. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1524B with -55°C ≤ T 25°C ≤ T ≤ 85°C, SG3524B with 0°C ≤ temperatures equal to the ambient temperature.) Parameter ...

Page 3

... 10mA 100mA 10mA 100mA 2KΩ 25° 2KΩ 25° 40V 2.0V IN SHUTDOWN 3 SG1524B/SG2524B/SG3524B SG1524B/2524B SG3524B Min. Typ. Max. Min. Typ. Max 0 140 50 400 600 400 600 3.5 3.9 3.5 0.6 1 0.6 1 3.0 4.0 3.0 4.0 0.2 ...

Page 4

... R =100K F 1000 10000 FREQUENCY (Hz) Figure 3 SG1524B Error Amp Voltage Gain vs. Freq over R V =20V, T =25° SG1524B/SG2524B/SG3524B 1000000 100 =2.7k) T 100000 1000000 F L INFINITY Microelectronics Inc. 11861 Western Avenue ∞ ∞ ∞ ∞ ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ ∞ ∞ ∞ ∞ FAX: (714) 893-2570 ...

Page 5

... LEADLESS CHIP CARRIER SG1524BL L- PACKAGE Note 1. Contact factory for JAN and DESC product availablity. 2. All packages are viewed from the top. 2/00 Rev 1.3 2/00 Copyright  2000 SG1524B/SG2524B/SG3524B (See Notes Below) Ambient Connection Diagram Temperature Range -55°C to 125°C -55°C to 125°C OSC. OUTPUT -25° ...

Related keywords