LT1158CN Linear Technology, LT1158CN Datasheet - Page 17

• Manufacturer Part Number: LT1158CN
• Description: IC MOSFET DRVR 1/2BRDG NCH 16DIP
• Manufacturer: Linear Technology

Specifications of LT1158CN

• Configuration: Half Bridge
• Input Type: PWM
• Current - Peak: 500mA
• Number Of Configurations: 1
• Number Of Outputs: 2
• High Side Voltage - Max (bootstrap): 56V
• Voltage - Supply: 5 V ~ 30 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Delay Time: -

TYPICAL APPLICATIONS
V
R
3.3k
OUT
X
(1%)
L1: COILTRONICS
R
CONSTANT OFF TIME CURRENT MODE CONTROL LOOP
FREQUENCY =
S
24k
: VISHAY/DALE TYPE LVR-3
CTX50-5-52
VISHAY/ULTRONIX RCS01, SM1
ISOTEK CORP. ISA-PLAN SMR
0.01μF
2.90V
806Ω
1000pF
CMOS
ON/OFF
1
2
3
4
1
2
3
4
100k
100k
t
LT1431
3.05V
1.10k
OFF
CMOS
1
555
(
16k
1 –
2N2222
VP0300
INSERT FOR
ZERO POWER
SHUTDOWN
3.30V
1.62k
V
V
OUT
Figure 12. High Effi ciency 5V Step-Down Switching Regulator (Requires No Heatsinks)
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
≈ 10μs
X
10μF
Q1, Q2: MTB75N05HD (USE WITH 10V TO 15V DRIVER SUPPLY)
CMOS 555: LMC555 OR TLC555
0.01μF
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
0.01μF
10μF
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
470pF
+
1
2
3
4
5
6
7
8
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
LT1158
+
1N4148
B GATE DR
T GATE DR
T SOURCE
T GATE FB
SEE FIGURE 4 FOR EFFICIENCY CURVE
IN
SENSE
SENSE
LT1158
BOOST
IN
V
+
–
+
DRIVER SUPLY)
T GATE DR
B GATE DR
T GATE FB
T SOURCE
16
15
14
13
12
11
10
9
SENSE
SENSE
BOOST
0.1μF
V
+
–
+
510Ω
16
15
14
13
12
11
10
9
100Ω
100Ω
0.05μF
0.22μF
BAS16
IRFZ34
IRFZ44
510k
1N4148
500k
1k
L1: COILTRONICS CTX02-12171-1
R
S
: KRL/BANTRY SL-1R010J 2
8V TO 20V INPUT
+
50μH
L1
Q2
Q1
V
+
1
2
3
4
IN
8μH
4.5V TO 6V
500μF
LOW ESR
L1
+
220μF
10V
OS-CON 4
20mΩ
LT1431
R
SHORT-CIRCUIT
CURRENT = 22A
+
S
0.01Ω
R
EA
–
S
SHORT-CIRCUIT
CURRENT = 6A
+
8
7
6
5
LT1158
–
1000μF
LOW ESR
+
+5V/4A
OUTPUT
LT1158 F12
17
330μF
6.3V
AVX 4
LT1158 F11
1158fb
V
15A
OUT