LT1158CS LINER [Linear Technology], LT1158CS Datasheet - Page 3

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

ELECTRICAL CHARACTERISTICS
open, Gate Feedback pins connected to Gate Drive pins unless otherwise specified.
SYMBOL
V14 – V13 Top Turn-Off Threshold
V8
I
V5
V12 – V11 Fault Conduction Threshold
V12 – V11 Current Limit Threshold
V12 – V11 Current Limit Inhibit
t
t
t
t
t
t
The
range.
Note 1: T
dissipation P
LT1158IN, LT1158CN: T
LT1158IS, LT1158CS: T
TYPICAL PERFORMANCE CHARACTERISTICS
5
R
D
F
R
D
F
14
12
10
0
8
6
4
2
0
denotes specifications that apply over the full operating temperature
DC Supply Current
I
2
J
+ I
5
is calculated from the ambient temperature T
PARAMETER
Bottom Turn-Off Threshold
Fault Output Leakage
Fault Output Saturation
V
Top Gate Rise Time
Top Gate Turn-Off Delay
Top Gate Fall Time
Bottom Gate Rise Time
Bottom Gate Turn-Off Delay
Bottom Gate Fall Time
D
10
DS
according to the following formulas:
+ I
10
Threshold
16
SUPPLY VOLTAGE (V)
15
ENABLE LOW
INPUT HIGH
J
J
INPUT LOW
20
= T
= T
A
A
25
+ (P
+ (P
V13 = 0V
D
30
D
W
V13 = V
110 C/W)
70 C/W)
35
LT1158 G01
+
U
40
CONDITIONS
V
V
V
V
V
V
V
until V15 goes low
Pin 6 (+) Transition, Meas. V15 – V13 (Note 3)
Pin 6 (–) Transition, Meas. V15 – V13 (Note 3)
Pin 6 (–) Transition, Meas. V15 – V13 (Note 3)
Pin 6 (–) Transition, Meas. V9 (Note 3)
Pin 6 (+) Transition, Meas. V9 (Note 3)
Pin 6 (+) Transition, Meas. V9 (Note 3)
+
+
+
+
+
+
+
= V16 = 5V, V6 = 0.8V
= V16 = 5V, V6 = 2V
= 30V, V16 = 15V, V6 = 2V
= 30V, V16 = 15V, V6 = 2V, I5 = 10mA
= 30V, V16 = 15V, V6 = 2V, I5 = 100 A
= 30V, V16 = 15V, V6 = 2V, Closed Loop
= V12 = 12V, V6 = 2V, Decrease V11
A
14
12
10
and power
8
0
6
4
2
–50
DC Supply Current
I
V
2
+
–25
+ I
= 12V
Test Circuit, T
10
+ I
16
0
TEMPERATURE (°C)
25
ENABLE LOW
INPUT HIGH
INPUT LOW
Note 2: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See typical performance
characteristics and applications information.
Note 3: Gate rise times are measured from 2V to 10V, delay times are
measured from the input transition to when the gate voltage has decreased
to 10V, and fall times are measured from 10V to 2V.
50
A
= 25 C, V
75
100
LT1158 G02
+
= V16 = 12V, V11 = V12 = V13 = 0V, Pins 1 and 4
125
MIN
130
120
1.1
90
1
1
LT1158I
30
20
25
15
10
1.75
1.25
TYP
110
150
130
350
120
130
200
100
1.5
0.1
0.5
0
5
Dynamic Supply Current (V
1
50% DUTY CYCLE
C
GATE
MAX
130
170
180
250
550
250
250
400
200
2.5
1.4
2
1
1
= 3000pF
INPUT FREQUENCY (kHz)
MIN TYP MAX
120
120
1.1
85
1
1
V
LT1158C
+
10
= 12V
1.75
1.25
150
110
130
350
120
130
200
100
1.5
0.1
0.5
LT1158
V
135
180
180
250
550
250
250
400
200
2.5
1.4
+
2
1
1
= 24V
+
V
)
+
LT1158 G03
= 6V
UNITS
3
mV
mV
mV
100
ns
ns
ns
ns
ns
ns
V
V
A
V
V