
2
LT1684
Voltages:
Active Tracking Differential Voltage
(GATE + – GATE –) ..................................– 0.3V to 42V
Local Supply Differential Voltage
(V + – V –) ...............................................– 0.3V to 36V
Local Supply
Voltage V + .............. (GATE + – 7.0V) to (GATE + + 0.3V)
Local Supply
Voltage V – .............. (GATE – – 0.3V) to (GATE – + 7.0V)
PWM Input Differential Voltage
(IN A – IN B) .........................................– 7.0V to 7.0V
PWM Input Voltage
Common Mode ................. (V – – 0.3V) to (V + + 0.3V)
LIM + Current Limit
Pin Voltage ..................... (OUT – 0.3V) to (V+ + 0.3V)
LIM– Current Limit
Pin Voltage .................... (V – – 0.3V) to (OUT + 0.3V)
All Other Pin Voltages ........... (V – – 0.3V) to (V + + 0.3V)
Currents:
LIM +, LIM – Current .......................................... – 350mA
OUT Current ....................................................... 350mA
BGOUT Current .................................................... ±10mA
PWM (IN A, IN B) Current ....................................
±5mA
GATE +, GATE – Current .......................................
±20mA
COMP1 Current ....................................................
±1mA
COMP2 Current ....................................................
±1mA
ATREF Current ..................................................... ±20mA
Temperatures:
Operating Junction Temperature Range
Commercial Grade ................................. 0
°C to 125°C
Industrial Grade ................................ – 40
°C to 125°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
(Note 1)
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
IN B
COMP1
COMP2
LIM–
V–
GATE–
ATREF
IN A
BGOUT
AMPIN
GATE+
V+
LIM+
OUT
ORDER PART
NUMBER
LT1684CN
LT1684CS
LT1684IN
LT1684IS
TJMAX = 125°C, θJA = 75°C/W (N)
TJMAX = 125°C, θJA = 115°C/W (S)
Consult factory for Military grade parts.
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W