LT1245IS8 Linear Technology, LT1245IS8 Datasheet - Page 6

• Manufacturer Part Number: LT1245IS8
• Description: IC PWM CURRENT MODE HI-SPD 8SOIC
• Manufacturer: Linear Technology

Specifications of LT1245IS8

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 48%
• Voltage - Supply: 8.2 V ~ 25 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT1241 Series
TYPICAL PERFOR
6
60
50
40
30
20
10
0
Output Deadtime vs Oscillator
Frequency – LT1242, LT1244
0
Output Rise and Fall Time
V
C
CC
L
= 1nF
= 15V
OSCILLATOR FREQUENCY (kHz)
TIME 50ns/DIV
100
5nF
500pF
2nF
W
LT1241 • TPC19
LT1241 • TPC22
100pF
A
1nF
1000
U
CE
C
HARA TERISTICS
75
70
65
60
55
50
Output Deadtime vs Oscillator
Frequency – LT1241, LT1243,LT1245
0
Output Cross-Conduction Current
V
C
CC
L
= 15pF
= 15V
OSCILLATOR FREQUENCY (kHz)
C
10nF
TIME 50ns/DIV
100
5nF
500pF
2nF
LT1241 • TPC20
LT1241 • TPC23
100pF
1nF
1000
100
10
1
10k
Timing Resistor vs Oscillator
Frequency
V
C
Current Sense Delay
C
CC
L
T
V
T
= 1nF
J
=10nF
CC
= 15V
= 25 C
= 15V
OSCILLATOR FREQUENCY (Hz)
5nF
TIME 50ns/DIV
1nF
2nF
100k
100pF
LT1241 • TPC21
200pF
LT1241 • TPC24
500pF
1M