lt3743 Linear Technology Corporation, lt3743 Datasheet - Page 4

• Manufacturer Part Number: lt3743
• Description: High Current Synchronous Step-down Led Driver With Three-state Control
• Manufacturer: Linear Technology Corporation

LT3743
ELECTRICAL CHARACTERISTICS
PARAMETER
PWMG Control Signals
CTRL_SEL High to PWMGL Low Delay
CTRL_SEL High to PWMGH High Delay
CTRL_SEL Low to PWMGH Low Delay
CTRL_SEL Low to PWMGL High Delay
PWMGH and PWMGL Pull-up Impedance
PWMGH and PWMGL Pull-Down Impedance
Current Control Loop g
Offset Voltage
Input Common Mode Range
Output Impedance
g
Differential Gain
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 LT3743 will function with a supply voltage as low as 4.5V, but
to keep the gate drive voltages above 4V, the V
V
4
temperature range, otherwise specifi cations are at T
m
IN
V
V
CM(LOW)
CM(HIGH)
for operation below 6.0V
m
Amp
CC_INT
CONDITIONS
V
CM(HIGH)
pin must be tied to
Measured from V
A
= 25°C. V
The
l
IN
denotes the specifi cations which apply over the full operating
= 12V, V
IN
to V
Note 3: The LT3743E is guaranteed to meet performance specifi cations
from 0°C to 125°C junction temperature. Specifi cations 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 specifi cations over the –40°C
to 125°C operating junction temperature range.
Note 4: The minimum on and off times are guaranteed by design and are
not tested.
CM
EN/UVLO
= 5V, unless otherwise noted.
l
–2.75
MIN
375
1.75
TYP
150
170
475
3.2
3.5
1.7
10
30
0
0
2
MAX
2.75
200
220
625
40
60
UNITS
mV/V
μA/V
3743f
MΩ
mV
ns
ns
ns
ns
Ω
Ω
V
V