lt3741 Linear Technology Corporation, lt3741 Datasheet - Page 7

• Manufacturer Part Number: lt3741
• Description: High Power, Constant Current, Constant Voltage, Step-down Controller
• Manufacturer: Linear Technology Corporation

Typical perFormance characTerisTics
150
120
120
100
60
30
80
60
40
20
90
5
4
2
1
0
0
0
3
–50
–50
HG Driver R
Overcurrent Threshold
0
Non-Overlap Time
–15
–15
0.75
TEMPERATURE (°C)
TEMPERATURE (°C)
PULL-UP
DS(ON)
PULL-DOWN
20
20
CTRL_H (V)
HG TO LG
LG TO HG
1.5
55
55
2.25
90
90
3741 G20
3741 G23
3741 G28
125
125
3.0
150
120
30
90
60
–1
–2
–3
5
4
2
1
0
0
3
2
1
0
3
–50
–50
Minimum On-Time
0
Current Regulation Accuracy
CTRL1 = 1.5V, V
LG Driver R
–15
–15
2.5
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
PULL-UP
DS(ON)
PULL-DOWN
25°C
20
20
HG
LG
IN
5.0
= 12V
55
55
7.5
90
90
3741 G21
3741 G24
3741 G26
125
125
10
300
240
120
180
1.5
1.2
0.3
–2
–4
–6
60
0.9
0.6
6
4
2
0
0
0
–50
–50
0
Minimum Off-Time
Oscillator Frequency
Current Regulation Accuracy
CTRL1 = 0.75V, V
–15
–15
2.5
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
1.2MHz
900kHz
220kHz
5.0
HG
LG
IN
25°C
= 12V
55
LT3741
55
7.5
90
90
3741 G27
3741 G25
3741 G36

3741f
125
125
10