LT1245CN8 Linear Technology, LT1245CN8 Datasheet - Page 4

• Manufacturer Part Number: LT1245CN8
• Description: IC PWM CURRNT MODE HI-SPEED 8DIP
• Manufacturer: Linear Technology

Specifications of LT1245CN8

• 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: 0°C ~ 100°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFOR
LT1241 Series
4
200
150
100
11
10
50
10
9
8
7
6
0
9
8
7
6
5
4
3
2
1
0
–50
10k
Start-Up Current
Undervoltage Lockout – LT1241
0
Supply Current vs
Oscillator Frequency
THRESHOLD
V
R
C
–25
START-UP
2
LT1243/5
CC
L
T
MINIMUM OPERATING VOLTAGE
= 10k
= 15pF
OSCILLATOR FREQUENCY (Hz)
= 15V
4
START-UP THRESHOLD
0
TEMPERATURE ( C)
6
LT1242, LT1243
25
LT1241, LT1244, LT1245
V
8
LT1241
CC
100k
(V)
10
50
12
75
LT1242/4
T
J
W
14
= 25 C
LT1241 • TPC01
LT1241 • TPC04
LT1241 • TPC18
100
16
A
U
125
1M
18
CE
C
HARA TERISTICS
200
180
160
140
120
100
17
16
15
11
10
80
60
40
20
60
58
56
54
52
50
48
46
44
42
40
9
0
–50
–50
–50
Start-Up Current
Undervoltage Lockout –
LT1242, LT1244
Oscillator Frequency
–25
–25
–25
MINIMUM OPERATING VOLTAGE
C
START-UP THRESHOLD
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
V
R
C
75
CC
T
T
= 3300pF
= 10k
LT1241 • TPC02
LT1241 • TPC05
LT1241 • TPC07
= 5V
100
100
100
125
125
125
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
10
11
10
9
8
7
6
5
9
8
7
6
–50
–50
–50
Supply Current
Undervoltage Lockout –
LT1243, LT1245
Oscillator Sink Current
V
C
V
R
PIN4
CC
T
T
–25
–25
–25
= 3300pF
= 10k
MINIMUM OPERATING VOLTAGE
= 15V
= 2V
START-UP THRESHOLD
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
LT1241 • TPC06
LT1241 • TPC08
LT1241 • TPC03
100
100
100
125
125
125