PRODUCT DATABOOK 1996/1997
SG1844/SG1845 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
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
OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
TEMPERATURE (SINK TRANSISTOR)
FIGURE #
FIGURE #
Application Information
12.
OSCILLATOR TIMING CIRCUIT
13.
OSCILLATOR FREQUENCY vs. R
T
FOR VARIOUS C
T
Typical Applications Section
14.
CURRENT SENSE SPIKE SUPPRESSION
15.
MOSFET PARASITIC OSCILLATIONS
16.
BIPOLAR TRANSISTOR DRIVE
17.
ISOLATED MOSFET DRIVE
18.
ADJUSTABLE BUFFERED REDUCTION OF CLAMP LEVEL WITH
SOFTSTART
19.
EXTERNAL DUTY CYCLE CLAMP AND MULTI-UNIT
SYNCHRONIZATION
20.
OSCILLATOR CONNECTION
21.
ERROR AMPLIFIER CONNECTION
10.
CURRENT SENSE THRESHOLD vs. ERROR AMPLIFIER OUTPUT
11.
OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
TEMPERATURE (SOURCE TRANSISTOR)
6
Copyright © 2000
Rev. 1.4 4/00
MICROSEMI [ MICROSEMI CORPORATION ]
