Datasheet

LT3743
4
3743fd
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, V
EN/UVLO
= 5V, unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
PWMG Control Signals
CTRL_SEL High to PWMGL Low Delay 10 40 ns
CTRL_SEL High to PWMGH High Delay 150 200 ns
CTRL_SEL Low to PWMGH Low Delay 30 60 ns
CTRL_SEL Low to PWMGL High Delay 170 220 ns
PWMGH and PWMGL Pull-up Impedance 3.2 Ω
PWMGH and PWMGL Pull-Down Impedance 1.75 Ω
Current Control Loop g
m
Amp
Offset Voltage V
SENSE
+
= 4V, V
SENSE
–
= 4V
l
–3 0 3 mV
Input Common
Mode Range
V
CM(LOW)
V
CM(HIGH)
V
CM(HIGH)
Measured from V
IN
to V
CM
0
2
V
V
Output Impedance 3.5 MΩ
g
m
375 475 625 µA/V
Differential Gain 1.7 V/mV
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note
2: The LT3743E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LT3743I is guaranteed to meet performance specifications over the –40°C
to 125°C operating junction temperature range.
Note 3: The minimum on and off times are guaranteed by design and
are
not tested.