LX1555MY Microsemi Analog Mixed Signal Group, LX1555MY Datasheet - Page 8
LX1555MY
Manufacturer Part Number
LX1555MY
Description
IC PWM CURRENT MODE 8.4V 8DIP
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet
1.LX1554CM.pdf
(18 pages)
Specifications of LX1555MY
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
48%
Voltage - Supply
11 V ~ 25 V
Buck
Yes
Boost
Yes
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-55°C ~ 125°C
Package / Case
8-DIP
Frequency-max
500kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
LX1552/3/4/5
8
FIGURE 9. — E.A. INPUT VOLTAGE vs. TEMPERATURE
FIGURE 11. — START-UP CURRENT vs. SUPPLY VOLTAGE
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
250
225
200
175
150
125
100
75
50
25
0
-75
0
LX1553/LX1555
T
A
-50
2
= 25°C
(T
A
4
) Ambient Temperature - (°C)
-25
(V
CC
6
) Supply Voltage - (V)
0
8
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
25
U
10
LTRA
P
12
50
-L
R O D U C T I O N
OW
C H A R A C T E R I S T I C C U R V E S
14
V
75
CC
S
= 15V
TART
16
100
-U
18
P
125
C
20
URRENT
D
, C
A T A
URRENT
FIGURE 10. — START-UP CURRENT vs. TEMPERATURE
FIGURE 12. — START-UP CURRENT vs. SUPPLY VOLTAGE
250
225
200
175
150
125
100
250
225
200
175
150
125
100
25
75
50
75
50
25
S
0
0
-M
-75
0
H E E T
ODE
LX1552/LX1554
T
A
-50
1
= 25°C
PWM
(T
A
2
) Ambient Temperature - (°C)
-25
(V
CC
3
) Supply Voltage - (V)
0
4
25
5
LX1553/LX1555
LX1552/LX1554
50
6
7
75
8
100
Copyright © 1994
Rev. 1.0b
9
125
10