LT1725IS Linear Technology, LT1725IS Datasheet - Page 5
LT1725IS
Manufacturer Part Number
LT1725IS
Description
IC CNTRLR ISOLATD FLYBACK 16SOIC
Manufacturer
Linear Technology
Type
Flybackr
Datasheet
1.LT1725ISPBF.pdf
(28 pages)
Specifications of LT1725IS
Internal Switch(s)
No
Synchronous Rectifier
No
Number Of Outputs
1
Frequency - Switching
50kHz ~ 250kHz
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output
-
Voltage - Output
-
Voltage - Input
-
Power - Output
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1725IS
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LT1725IS#PBF
Manufacturer:
LT
Quantity:
800
Part Number:
LT1725IS#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1725IS#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
TYPICAL PERFOR A CE CHARACTERISTICS
275
250
225
200
175
150
125
–50
Minimum Switch-On Time vs
Temperature
R
TON
–25
= 50k
0
TEMPERATURE (°C)
–20
–40
–60
–80
80
60
40
20
60
50
40
30
20
10
25
0
1.05
0
–50
Feedback Amplifier Output Current
vs FB Pin Voltage
Soft-Start Charging Current vs
Temperature
T
A
50
1.10
= 25°C
–25
75
1.15
FB PIN VOLTAGE (V)
W
0
TEMPERATURE (°C)
100
1.20
25
1725 G10
U
125
T
A
1.25
50
= –55°C
1.30
T
75
V(SFST) = 0V
A
= 125°C
275
250
225
200
175
150
125
1.35
100
–50
1725 G13
Minimum Enable Time vs
Temperature
1725 G15
R
MINENAB
1.40
125
–25
= 50k
0
TEMPERATURE (°C)
25
50
75
1600
1400
1200
1000
800
600
400
200
2.5
2.0
1.5
1.0
0.5
100
0
–50
–50
1725 G11
Feedback Amplifier
Transconductance vs Temperature
Soft-Start Sink Current vs
Temperature
125
–25
–25
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
275
250
225
200
175
150
125
25
25
–50
Enable Delay Time vs
Temperature
50
50
–25
V(SFST) = 1.5V
75
75
0
TEMPERATURE (°C)
100
100
25
1725 G14
1725 G16
125
125
50
LT1725
75
100
1725 G12
1725fa
5
125