SG3845DM Microsemi Analog Mixed Signal Group, SG3845DM Datasheet - Page 8
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SG3845DM
Manufacturer Part Number
SG3845DM
Description
IC PWM CURRENT MODE 8SOIC
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet
1.SG3845M.pdf
(12 pages)
Specifications of SG3845DM
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
50%
Voltage - Supply
8.2 V ~ 30 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
0°C ~ 70°C
Package / Case
8-SOIC
Frequency-max
500kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SG3845DM
Manufacturer:
Microsemi Analog Mixed Signal
Quantity:
1 820
8
SG1844/SG1845 Series
FIGURE 5. — REFERENCE VOLTAGE vs. TEMPERATURE
FIGURE 7. — START-UP VOLTAGE THRESHOLD vs.
16.08
16.06
16.04
16.02
16.00
15.98
5.02
5.01
5.00
4.99
4.98
-75
-75
-50
-50
TEMPERATURE
Junction Temperature - (°C)
Junction Temperature - (°C)
-25
-25
0
0
V
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
CC
= 15V
25
25
C
SG1844
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
- M
100
100
O D E
125
125
P W M C
D
A T A
FIGURE 6. — START-UP VOLTAGE THRESHOLD vs.
FIGURE 8. — OSCILLATOR DISCHARGE CURRENT vs.
O N T R O L L E R
8.32
8.30
8.28
8.26
8.24
8.22
8.20
8.18
8.2
8.0
7.8
7.6
7.4
7.2
S
-75
-75
H E E T
-50
-50
TEMPERATURE
TEMPERATURE
Junction Temperature - (°C)
Junction Temperature - (°C)
-25
-25
0
0
25
25
SG1845
50
50
75
75
100
100
Copyright © 2000
Rev. 1.6c
125
125