LT1158CS LINER [Linear Technology], LT1158CS Datasheet - Page 16

• Manufacturer Part Number: LT1158CS
• Description: Half Bridge N-Channel Power MOSFET Driver
• Manufacturer: LINER [Linear Technology]

LT1158
TYPICAL APPLICATIONS
16
V
R
3.3k
OUT
X
(1%)
L1: COILTRONICS
R
CONSTANT OFF TIME CURRENT MODE CONTROL LOOP
FREQUENCY =
VISHAY/ULTRONIX RCS01, SM1
S
24k
: VISHAY/DALE TYPE LVR-3
CTX50-5-52
ISOTEK CORP. ISA-PLAN SMR
0.01 F
2.90V
806
CMOS
ON/OFF
1000pF
1
2
3
4
1
2
3
4
100k
100k
t
LT1431
3.05V
1.10k
CMOS
OFF
1
555
(
16k
1 –
2N2222
VP0300
INSERT FOR
ZERO POWER
SHUTDOWN
3.30V
1.62k
V
Figure 12. High Efficiency 5V Step-Down Switching Regulator (Requires No Heatsinks)
V
OUT
IN
8
7
6
5
8
7
6
5
)
3.45V
1.91k
WHERE t
Figure 11. 5V to 3.XXV,15A Converter (Uses PC Board Area for Heatsink)
0.33µF
200pF
4.99k
3.60V
2.21k
1%
OFF
+
1%
24k
R
U
X
10 s
10 F
Q1, Q2: MTB75N05HD (USE WITH 10V TO 15V DRIVER SUPPLY)
CMOS 555: LMC555 OR TLC555
0.01 F
1000pF
DRIVER SUPPLY 10V TO 15V
(CAN BE POWERED FROM V
WITH LOGIC-LEVEL Q1, Q2)
SHUTDOWN
1
2
3
4
5
6
7
8
+
MTB75N03HDL (USE WITH V
0.01 F
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
10 F
470pF
+
1
2
3
4
5
6
7
8
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
LT1158
+
1N4148
T GATE DR
B GATE DR
T GATE FB
T SOURCE
SEE FIGURE 4 FOR EFFICIENCY CURVE
IN
SENSE
SENSE
LT1158
BOOST
IN
V
+
–
+
B GATE DR
DRIVER SUPLY)
T GATE DR
T GATE FB
T SOURCE
16
15
14
13
12
11
10
9
SENSE
SENSE
BOOST
0.1 F
V
+
–
+
510
16
15
14
13
12
11
10
9
100
100
0.05 F
0.22 F
BAS16
IRFZ34
IRFZ44
510k
1N4148
500k
1k
L1: COILTRONICS CTX02-12171-1
R
S
: KRL/BANTRY SL-1R010J 2
8V TO 20V INPUT
+
50 H
L1
Q2
Q1
V
+
1
2
3
4
IN
8 H
4.5V TO 6V
500 F
LOW ESR
L1
+
220 F
10V
OS-CON 4
20m
LT1431
SHORT-CIRCUIT
CURRENT = 22A
R
+
S
0.01
R
EA
SHORT-CIRCUIT
CURRENT = 6A
–
S
8
7
6
5
–
+
1000 F
LOW ESR
+5V/4A
OUTPUT
LT1158 F12
+
330 F
6.3V
AVX 4
LT1158 F11
V
15A
OUT