Datasheet
2
LT1160/LT1162
11602fb
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Supply Voltage (Note 2) ......................................... 20V
Boost Voltage ......................................................... 75V
Peak Output Currents (< 10µs) .............................. 1.5A
Input Pin Voltages .......................... – 0.3V to V
+
+ 0.3V
Top Source Voltage ..................................... –5V to 60V
Boost to Source Voltage ........................... –0.3V to 20V
Operating Temperature Range
Commercial .......................................... 0°C to 70°C
Industrial ......................................... – 40°C to 85°C
Junction Temperature (Note 3)............................ 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
LT1162CSW
LT1162ISW
ORDER PART
NUMBER
LT1160CN
LT1160CS
LT1160IN
LT1160IS
T
JMAX
= 125°C, θ
JA
= 58°C/ W (N)
T
JMAX
= 125°C, θ
JA
= 80°C/ W (SW)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Test Circuit, T
A
= 25°C, V
+
= V
BOOST
= 12V, V
TSOURCE
= 0V, C
GATE
=
3000pF. Gate Feedback pins connected to Gate Drive pins, unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
S
DC Supply Current (Note 4) V
+
= 15V, V
INTOP
= 0.8V, V
INBOTTOM
= 2V 7 11 15 mA
V
+
= 15V, V
INTOP
= 2V, V
INBOTTOM
= 0.8V 7 10 15 mA
V
+
= 15V, V
INTOP
= 0.8V, V
INBOTTOM
= 0.8V 7 11 15 mA
I
BOOST
Boost Current (Note 4) V
+
= 15V, V
TSOURCE
= 60V, V
BOOST
= 75V, 3 4.5 6 mA
V
INTOP
= V
INBOTTOM
= 0.8V
V
IL
Input Logic Low ● 1.4 0.8 V
V
IH
Input Logic High ● 2 1.7 V
I
IN
Input Current V
INTOP
= V
INBOTTOM
= 4V ● 725 µA
V
+
UVH
V
+
Undervoltage Start-Up Threshold 8.4 8.9 9.7 V
V
+
UVL
V
+
Undervoltage Shutdown Threshold 7.8 8.3 8.8 V
V
BUVH
V
BOOST
Undervoltage Start-Up Threshold V
TSOURCE
= 60V (V
BOOST
– V
TSOURCE
) 8.8 9.3 9.8 V
V
BUVL
V
BOOST
Undervoltage Shutdown Threshold V
TSOURCE
= 60V (V
BOOST
– V
TSOURCE
) 8.2 8.7 9.2 V
ELECTRICAL CHARACTERISTICS
T
JMAX
= 125°C, θ
JA
= 70°C/ W (N)
T
JMAX
= 125°C, θ
JA
= 110°C/ W (S)
1
2
3
4
5
6
7
TOP VIEW
N PACKAGE
14-LEAD PDIP
S PACKAGE
14-LEAD PLASTIC SO
14
13
12
11
10
9
8
SV
+
IN TOP
IN BOTTOM
UV OUT
SGND
PGND
NC
BOOST
T GATE DR
T GATE FB
T SOURCE
PV
+
B GATE DR
B GATE
FB
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
N PACKAGE
24-LEAD PDIP
24
23
22
21
20
19
18
17
16
15
14
13
SW PACKAGE
24-LEAD PLASTIC SO WIDE
SV
+
A
IN TOP
A
IN BOTTOM
A
UV
OUT
A
GND A
B GATE FB A
SV
+
B
IN TOP B
IN BOTTOM B
UV
OUT
B
GND B
B GATE FB B
BOOST A
T GATE DR A
T GATE FB A
T SOURCE A
PV
+
A
B GATE DR A
BOOST B
T GATE DR B
T GATE FB B
T SOURCE B
PV
+
B
B GATE DR B
(Note 1)
OBSOLETE
PART NUMBERS
LT1162CN
LT1162IN