PRODUCT DATABOOK 1996/1997
SG1842/SG1843 Series
C
URRENT
-M
ODE
PWM C
ONTROLLER
P
R O D U C T I O N
D
A T A
S
H E E T
GRAPH / CURVE INDEX
FIGURE INDEX
Characteristic Curves
FIGURE #
1.
2.
3.
4.
5.
6.
7.
8.
9.
DROPOUT VOLTAGE vs. TEMPERATURE
OSCILLATOR TEMPERATURE STABILITY
CURRENT SENSE TO OUTPUT DELAY vs. TEMPERATURE
OUTPUT DUTY CYCLE vs. TEMPERATURE
START-UP CURRENT vs. TEMPERATURE
REFERENCE VOLTAGE vs. TEMPERATURE
START-UP VOLTAGE THRESHOLD vs. TEMPERATURE
START-UP VOLTAGE THRESHOLD vs. TEMPERATURE
OSCILLATOR DISCHARGE CURRENT vs. TEMPERATURE
FIGURE #
FIGURE #
Application Information
13.
OSCILLATOR TIMING CIRCUIT
14.
OSCILLATOR FREQUENCY vs. R
T
FOR VARIOUS C
T
Typical Applications Section
15.
CURRENT SENSE SPIKE SUPPRESSION
16.
MOSFET PARASITIC OSCILLATIONS
17.
BIPOLAR TRANSISTOR DRIVE
18.
ISOLATED MOSFET DRIVE
19.
ADJUSTABLE BUFFERED REDUCTION OF CLAMP LEVEL WITH
SOFTSTART
20.
EXTERNAL DUTY CYCLE CLAMP AND MULTI-UNIT
SYNCHRONIZATION
21.
OSCILLATOR CONNECTION
22.
ERROR AMPLIFIER CONNECTION
23.
SLOPE COMPENSATION
24.
OPEN LOOP LABORATORY FIXTURE
25.
OFF-LINE FLYBACK REGULATOR
10.
OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
TEMPERATURE (SINK TRANSISTOR)
11.
CURRENT SENSE THRESHOLD vs. ERROR AMPLIFIER OUTPUT
12.
OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
TEMPERATURE (SOURCE TRANSISTOR)
6
Copyright © 2000
Rev. 1.6 4/00
MICROSEMI [ MICROSEMI CORPORATION ]
