
LT1785/LT1785A/
LT1791/LT1791A
2
178591fc
ABSOLUTE MAXIMUM RATINGS (Note 1)
1
2
3
4
8
7
6
5
TOP VIEW
VCC
B
A
GND
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
R
D
RO
RE
DE
DI
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 150°C/W (S8)
TOP VIEW
N PACKAGE
14-LEAD PDIP
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
RO
RE
DE
DI
GND
VCC
NC
A
B
Z
Y
NC
R
D
TJMAX = 150°C, θJA = 130°C/W (N)
TJMAX = 150°C, θJA = 150°C/W (S)
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT1785CN8#PBF
LT1785CN8#TRPBF
1785
8-Lead PDIP
0°C to 70°C
LT1785CS8#PBF
LT1785CS8#TRPBF
1785
8-Lead Plastic SO
0°C to 70°C
LT1785IN8#PBF
LT1785IN8#TRPBF
1785I
8-Lead PDIP
–40°C to 85°C
LT1785IS8#PBF
LT1785IS8#TRPBF
1785I
8-Lead Plastic SO
–40°C to 85°C
LT1785ACN8#PBF
LT1785ACN8#TRPBF
1785A
8-Lead PDIP
0°C to 70°C
LT1785ACS8#PBF
LT1785ACS8#TRPBF
1785A
8-Lead Plastic SO
0°C to 70°C
LT1785AIN8#PBF
LT1785AIN8#TRPBF
1785AI
8-Lead PDIP
–40°C to 85°C
LT1785AIS8#PBF
LT1785AIS8#TRPBF
1785AI
8-Lead Plastic SO
–40°C to 85°C
LT1785HN8#PBF
LT1785HN8#TRPBF
1785H
8-Lead PDIP
–40°C to 125°C
LT1785HS8#PBF
LT1785HS8#TRPBF
1785H
8-Lead Plastic SO
–40°C to 125°C
LT1785AHN8#PBF
LT1785AHN8#TRPBF
1785AH
8-Lead PDIP
–40°C to 125°C
LT1785AHS8#PBF
LT1785AHS8#TRPBF
1785AH
8-Lead Plastic SO
–40°C to 125°C
LT1791CN#PBF
LT1791CN#TRPBF
1791
14-Lead PDIP
0°C to 70°C
LT1791CS#PBF
LT1791CS#TRPBF
1791
14-Lead Plastic SO
0°C to 70°C
Supply Voltage (VCC) ................................................18V
Receiver Enable Input Voltage...................... –0.3V to 6V
Driver Enable Input Voltage.......................... –0.3V to 6V
Driver Input Voltage ................................... –0.3V to 18V
Receiver Input Voltage ................................ –60V to 60V
Driver Output Voltage.................................. –60V to 60V
Receiver Output Voltage................... –0.3V to (VCC + 6V)
Operating Temperature Range
LT1785C/LT1791C/
LT1785AC/LT1791AC.................................... 0°C to 70°C
LT1785I/LT1791I/
LT1785AI/LT1791AI.................................. –40°C to 85°C
LT1785H/LT1791H/
LT1785AH/LT1791AH ............................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C