Datasheet

3
LTC1693
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Switching Timing (Note 4)
t
RISE
Output Rise Time C
OUT
= 1nF ● 17.5 35 ns
C
OUT
= 4.7nF ● 48.0 85 ns
t
FALL
Output Fall Time C
OUT
= 1nF ● 16.5 35 ns
C
OUT
= 4.7nF ● 42.0 75 ns
t
PLH
Output Low-High Propagation Delay C
OUT
= 1nF ● 38.0 70 ns
C
OUT
= 4.7nF ● 40.0 75 ns
t
PHL
Output High-Low Propagation Delay C
OUT
= 1nF ● 32 70 ns
C
OUT
= 4.7nF ● 35 75 ns
Driver Isolation
R
ISO
GND1-GND2 Isolation Resistance LTC1693-1, LTC1693-2 GND1-to-GND2 Voltage = 75V ● 0.075 1 GΩ
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Supply current is the total current for both drivers.
Note 3: Only the LTC1693-3 has a PHASE pin.
Note 4: All AC timing specificatons are guaranteed by design and are not
production tested.
Note 5: Only applies to the LTC1693-1 and LTC1693-2.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
IN Threshold Voltage vs V
CC
TEMPERATURE (°C)
–50
INPUT THRESHOLD HYSTERESIS (V)
1.2
1.3
1.4
25 75
1693 G03
1.1
1.0
–25 0 50 100 125
0.9
0.8
V
CC
= 12V
V
IH
-V
IL
IN Threshold Hysteresis
vs Temperature
IN Threshold Voltage
vs Temperature
V
CC
(V)
5
2.00
2.25
2.75
810
1693 G01
1.75
1.50
67
91112
1.25
1.00
2.50
INPUT THRESHOLD VOLTAGE (V)
V
IH
V
IL
T
A
= 25°C
TEMPERATURE (°C)
–50
INPUT THRESHOLD VOLTAGE (V)
2.75
25
1693 G02
2.00
1.50
–25 0 50
1.25
1.00
3.00
2.50
V
IH
V
IL
2.25
1.75
75 100 125
V
CC
= 12V
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 12V, unless otherwise noted.