LT3518EFE#PBF Linear Technology, LT3518EFE#PBF Datasheet - Page 4

• Manufacturer Part Number: LT3518EFE#PBF
• Description: IC LED DRIVR AUTOMOTIVE 16-TSSOP
• Manufacturer: Linear Technology
• Type: Automotiver

Specifications of LT3518EFE#PBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 250kHz ~ 2.5MHz
• Voltage - Supply: 3 V ~ 30 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 2.8A
• Internal Switch(s): Yes
• Efficiency: 88%
• Led Driver Application: Display Backlighting, Automotive And Avionic Lighting
• No. Of Outputs: 1
• Output Current: 2.3A
• Output Voltage: 45V
• Input Voltage: 3V To 30V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
PARAMETER
TGEN Input High Voltage
TGEN Input Low Voltage
TGEN Pin Bias Current
V
V
Gate Turn-On Delay
Gate Turn-Off Delay
Top Gate Drive V
LT3518
temperature range, otherwise specifications are at T
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 LT3518E 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
LT3518I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3518H is guaranteed over the full –40°C to
150°C operating junction temperature range. Operating lifetime is derated
at junction temperatures greater than 125°C.
4
REF
REF
Pin Voltage
Pin Voltage Line Regulation
GS
(V
ISP
– V
TG
)
CONDITIONS
TGEN = 5V
I
3V < V
C
C
V
PWM = 0V
REF
LOAD
LOAD
ISP
= –100µA
= 24V, TGEN = 5V
A
IN
= 1nF Between ISP and TG
= 1nF Between ISP and TG
= 25°C. (Note 2) V
< 40V
The
l
denotes the specifications which apply over the full operating
Note 3: Absolute maximum voltage at V
is 40V for nonrepetitive 1 second transients and 30V for continuous
operation.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the specified maximum operating junction temperature may impair device
reliability.
IN
= 5V, SHDN = 5V, PWM = 5V unless otherwise noted.
l
1.96
MIN
1.5
IN
, SHDN, PWM and TGEN pins
TYP
100
200
200
2
7
0
MAX
2.04
0.03
200
0.4
0.3
UNITS
3518fd
%/V
µA
ns
ns
V
V
V
V
V