SG2844M Microsemi Analog Mixed Signal Group, SG2844M Datasheet - Page 7

IC PWM CURRENT MODE 8DIP

SG2844M

Manufacturer Part Number
SG2844M
Description
IC PWM CURRENT MODE 8DIP
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of SG2844M

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
-25°C ~ 85°C
Package / Case
8-DIP
Frequency-max
500kHz
Lead Free Status / RoHS Status
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Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG2844M
Manufacturer:
Microsemi
Quantity:
5 510
Copyright © 2000
Rev. 1.6c
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
SG1845
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
SG1844
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. — START-UP CURRENT vs. TEMPERATURE
O N T R O L L E R
-10
0.7
0.6
0.5
0.4
0.3
0.2
-2
-4
-6
-8
S
2
0
-75
-75
H E E T
SG1844/SG1845 Series
-50
-50
Junction Temperature - (°C)
Junction Temperature - (°C)
-25
-25
0
0
SG1845
SG1844
25
25
V
Duty Cycle = 50%
IN
50
50
= 15V
75
75
100
100
125
125
7

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