參數(shù)資料
型號: SG1524B
廠商: Microsemi Corporation
英文描述: CAP .01UF 250V PEN FILM 1913 10%
中文描述: 調(diào)控脈寬調(diào)制器
文件頁數(shù): 1/5頁
文件大?。?/td> 64K
代理商: SG1524B
2/00 Rev 1.3 2/00
Copyright
2000
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
Garden Grove, CA 92841
(714) 898-8121
FAX: (714) 893-2570
1
SG1524B/SG2524B/SG3524B
REGULATING PULSE WIDTH MODULATOR
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
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.
+V
IN
Reference
Regulator
Oscillator
To Internal
Circuitry
V
REF
Undervoltage
Lockout
P.W.M.
Error
C.L.
COMPENSATION
SHUTDOWN
Q
Q
R
S
S
Q
Q
Q
D
T
EMITTER B
COLLECTOR B
EMITTER A
COLLECTOR A
-C.L. SENSE
+C.L. SENSE
NON-INVERTING
INVERTING
PWM
LATCH
TOGGLE
F/F
MEMORY
F/F
OSC
+V
IN
GROUND
R
T
C
T
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
- SG1524B
Available to MIL-STD-883
and DESC SMD
Scheduled for MIL-M-38510 QPL listing
Radiation data available
LMI level "S" processing available
DESCRIPTION
相關(guān)PDF資料
PDF描述
SG2524B REGULATING PULSE WIDTH MODULATOR
SG2524BDW REGULATING PULSE WIDTH MODULATOR
SG2524BJ REGULATING PULSE WIDTH MODULATOR
SG2524BN REGULATING PULSE WIDTH MODULATOR
SG3524B REGULATING PULSE WIDTH MODULATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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