LT1425CS Linear Technology, LT1425CS Datasheet - Page 3

• Manufacturer Part Number: LT1425CS
• Description: IC SW REG ISOLATED FLYBCK 16SOIC
• Manufacturer: Linear Technology
• Type: Flybackr

Specifications of LT1425CS

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Current - Output: 200mA
• Frequency - Switching: 285kHz
• Voltage - Input: 2.8 ~ 20 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Power - Output: 6W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
The
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
SYMBOL
Load Compensation
SYNC Function
Power Supply
V
I
CC
IN(MIN)
1.2
1.0
0.8
0.6
0.4
0.2
0
denotes the specifications which apply over the full operating
0
Switch Saturation Voltage vs
Switch Current
0.2
PARAMETER
Minimum SYNC Amplitude
Synchronization Range
SYNC Pin Input Resistance
Minimum Input Voltage
Supply Current
Shutdown Mode Supply Current
Shutdown Mode Threshold
0.4
V
SWITCH CURRENT (A)
RCCOMP
0.6
/ I
0.8
SW
1.0
W
–55 C
125 C
1.2
25 C
1425 G01
U
1.4
2.0
1.5
1.0
0.5
0
0
Switch Current Limit vs
Duty Cycle
T
10 20 30
A
CONDITIONS
= 25 C
V
IN
= 5V, T
DUTY CYCLE (%)
40
50 60 70 80 90 100
J
Note 2: Feedback amplifier transconductance is R
Note 3: Voltage gain is R
= 25 C, V
SW
1425 G02
Open, V
REF
C
= 1.4V, unless otherwise specified.
referred.
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
–50
Minimum Input Voltage vs
Temperature
MIN
320
0.4
–25
0
TEMPERATURE ( C)
0.45
TYP
1.5
2.8
7.0
0.9
40
15
REF
25
referred.
50
MAX
450
2.2
3.1
9.5
1.3
40
LT1425
75
100
1425 G03
UNITS
3
kHz
mA
k
125
V
V
A
V