SG3844Y SEMICOA, SG3844Y Datasheet - Page 8
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SG3844Y
Manufacturer Part Number
SG3844Y
Description
Manufacturer
SEMICOA
Datasheet
1.SG3844Y.pdf
(12 pages)
Specifications of SG3844Y
Pwm Type
Current Mode PWM Controller
Number Of Pwm Outputs
1
On/off Pin
No
Adjustable Output
No
Switching Freq
500kHz
Duty Cycle
50%
Output Current
200mA
Synchronous Pin
No
Rise Time
50ns
Fall Time
50ns
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
8
Package Type
CDIP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SG3844Y
Manufacturer:
NEC
Quantity:
5 510
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