SG2843M Microsemi Analog Mixed Signal Group, SG2843M Datasheet - Page 7
SG2843M
Manufacturer Part Number
SG2843M
Description
IC PWM CURRENT MODE 8DIP
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet
1.SG3842M.pdf
(14 pages)
Specifications of SG2843M
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
100%
Voltage - Supply
8.2 V ~ 30 V
Buck
No
Boost
No
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-25°C ~ 85°C
Package / Case
8-DIP
Frequency-max
500kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Copyright © 2000
Rev. 1.6a 10/04
FIGURE 1. — DROPOUT VOLTAGE vs. TEMPERATURE
FIGURE 3. — CURRENT SENSE TO OUTPUT DELAY vs.
10.0
220
200
180
160
140
120
9.6
9.2
8.8
8.4
8.0
-75
-75
-50
-50
TEMPERATURE
Junction Temperature - (°C)
Junction Temperature - (°C)
-25
-25
SG1843
0
0
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
SG1842
25
25
C
U R R E N T
P
50
50
R O D U C T I O N
C H A R A C T E R I S T I C C U R V E S
75
75
V
PIN3
- M
= 1.1V
100
100
O D E
125
125
P W M C
D
A T A
FIGURE 2. — OSCILLATOR TEMPERATURE STABILITY
FIGURE 4. — OUTPUT DUTY CYCLE vs. TEMPERATURE
O N T R O L L E R
-10
50
49
48
47
46
45
44
-2
-4
-6
-8
S
2
0
-75
-75
H E E T
SG1842/SG1843 Series
200kHz
-50
-50
Junction Temperature - (°C)
Junction Temperature - (°C)
-25
-25
100kHz
50kHz
0
0
25
25
V
Duty Cycle = 50%
IN
50
50
100kHz
200kHz
= 15V
75
75
100
100
50kHz
125
125
7