LT1242 LINER [Linear Technology], LT1242 Datasheet - Page 3

• Manufacturer Part Number: LT1242
• Description: High Speed Current Mode Pulse Width Modulators
• Manufacturer: LINER [Linear Technology]

The
temperature range.
Note 1: Unless otherwise specified, V
ELECTRICAL C
PARAMETER
Error Amplifier Section
Output Voltage High Level
Output Voltage Low Level
Current Sense Section
Gain
Maximum Current Sense Input Threshold
Power Supply Rejection Ratio
Input Bias Current
Delay to Output
Blanking Time
Blanking Override Voltage
Output Section
Output Low Level
Output High Level
Rise Time
Fall Time
Output Clamp Voltage
Undervoltage Lockout
Start-Up Threshold
Minimum Operating Voltage
Hysteresis
PWM
Maximum Duty Cycle
Minimum Duty Cycle
Total Device
Start-Up Current
Operating Current
LT1241
LT1242/LT1244
LT1243/LT1245
LT1241/LT1243/LT1245
LT1242/LT1244
LT1241
LT1242/LT1244
LT1243/LT1245
LT1241/LT1244/LT1245
LT1242/LT1243
denotes those specifications which apply over the full operating
HARA TERISTICS
CC
= 15V, R
C
CONDITIONS
V
V
V
I
I
I
I
C
C
I
T
T
OUT
OUT
OUT
OUT
O
J
J
PIN2
PIN2
PIN3
L
L
= 1mA
= 25 C
= 25 C
= 1nF, T
= 1.0nF, T
T
= 20mA
= 200mA
= 20mA
= 200mA
= 2.3V, R
= 2.7V, R
< 1.1V
= 10k, C
J
= 25 C
J
T
= 25 C
L
L
= 3.3nF.
= 15k to GND
= 15k to Pin 8
(Notes 1, 2)
Note 2: Low duty cycle pulse techniques are used during test to maintain
junction temperature close to ambient.
11.75
MIN
2.85
0.90
12.0
9.0
7.8
7.0
9.0
1.6
5.5
0.4
15
46
94
5
3.00
1.00
0.25
0.75
TYP
100
170
5.6
0.2
1.5
9.6
8.4
7.6
2.0
6.0
0.8
– 1
70
50
50
30
18
16
10
48
96
0
7
LT1241 Series
MAX
3.15
1.10
19.5
10.2
100
250
1.1
0.4
2.2
9.0
8.2
10
80
60
17
11
10
UNITS
3
V/V
mA
dB
ns
ns
ns
ns
%
%
%
V
V
V
A
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A