LT3743IUFD#PBF Linear Technology, LT3743IUFD#PBF Datasheet - Page 4

• Manufacturer Part Number: LT3743IUFD#PBF
• Description: IC LED DRVR HP CONST CURR 28QFN
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3743IUFD#PBF

• Topology: High Side, Low Side, PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: General Purpose
• Type - Secondary: RGB
• Frequency: 200kHz ~ 1MHz
• Voltage - Supply: 6 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Efficiency: 92%
• Led Driver Application: Lighting
• No. Of Outputs: 1
• Output Current: 20A
• Output Voltage: 40V
• Input Voltage: 6V To 36V
• Dimming Control Type: PWM
• Operating Temperature Range: -40°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -

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 LT3743E is guaranteed to meet performance specifi cations
from 0°C to 125°C junction temperature. Specifi cations over the –40°C
4
temperature range, otherwise specifi cations are at T
m
V
V
CM(LOW)
CM(HIGH)
m
Amp
CONDITIONS
V
V
SENSE
CM(HIGH)
+
= 4V, V
Measured from V
A
= 25°C. V
SENSE
The
–
= 4V
l
IN
denotes the specifi cations which apply over the full operating
= 12V, V
IN
to V
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 3: The minimum on and off times are guaranteed by design and are
not tested.
CM
EN/UVLO
= 5V, unless otherwise noted.
l
MIN
375
–3
1.75
TYP
150
170
475
3.2
3.5
1.7
10
30
0
0
2
MAX
200
220
625
40
60
3
UNITS
V/mV
3743fb
μA/V
MΩ
mV
ns
ns
ns
ns
Ω
Ω
V
V