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LT3760IFE#TRPBF

Description
IC LED DRIVER CTRLR DIM 28TSSOP
Categorysemiconductor    Power management   
File Size166KB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric Compare View All

LT3760IFE#TRPBF Overview

IC LED DRIVER CTRLR DIM 28TSSOP

LT3760IFE#TRPBF Parametric

Parameter NameAttribute value
typeDC DC controller
TopologyBoost
internal switchnone
Number of outputs8
Voltage - Power supply (minimum)6V
Voltage - Power Supply (Highest)40V
Voltage - Output6.95V
Current - Output/Channel100mA
frequency100kHz ~ 1MHz
DimmingAnalog, PWM
applicationbacklight
Operating temperature-40°C ~ 125°C (TJ)
Installation typesurface mount
Package/casing28-SOIC (0.173", 4.40mm wide) exposed pad
Supplier device packaging28-TSSOP-EP
DEMO MANUAL DC1573A
LT3760
8-Channel 100mA
High Voltage LED Driver
Description
DC1573A is an 8-Channel 100mA High Voltage LED Driver
featuring the LT
®
3760. The LT3760 drives up to 100mA
per string and has a maximum LED string voltage of 45V.
DC1573A is set at 1MHz switching frequency for smallest
inductor and capacitor size as well as maximum PWM
dimming performance. Overvoltage protection is set at
55V in case the LEDs are removed from the circuit. If the
LEDs are opened, the
FAULT
terminal output flag goes
low and reports the fault condition. The V
IN
terminal is
powered from 10V to 14V input separated from the 24V
PV
IN
supply for best thermal performance. If one or more
of the 8 LED channels is not used, its LED pin or terminal
should be tied to LED+ to disable it. Multiple channels can
be used in parallel for higher LED current by tying their
LED1-8 pins together.
The LT3760 data sheet gives a complete description of
the part, operation and applications information. The data
sheet must be read in conjunction with this demo manual
for demonstration circuit 1573A. The LT3760 is assembled
in a small 28-lead FE (4.4mm TSSOP) package with a
thermally enhanced ground pad. Proper board layout is
essential for maximum thermal performance. See the
Layout Considerations section in the data sheet.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
perForMAnce sUMMArY
PARAMETER
PV
IN
Power Input Voltage Range
V
IN
Pin Input Voltage Range
Switching Frequency
LED String Current I
LED(1-8)
OVP Open LED Voltage
Efficiency
Undervoltage Lockout
Low Voltage Turn-On (UVLO + V
HYST
)
Peak Switch Current Limit
(T
A
= 25°C)
CONDITION
Operating
Operating
R
T
= 39.2k
R14 = 5.76k
R8 = 11k, R7 = 20k
PV
IN
= 24V, V
IN
= 10V, V
LED
= 45V, I
LED1-8
= 100mA
R1 = 499k, R4 = 40.2k
R1 = 499k, R4 = 40.2k
R
S1
= 0.015Ω
VALUE (TYPICAL)
20V to 28V
8V to 14V
1MHz
100mA
55V
92%
20.1V
21.4V
3.3A
dc1573af
1

LT3760IFE#TRPBF Related Products

LT3760IFE#TRPBF DC1573A LT3760EFE#PBF LT3760IFE#PBF LT3760EFE#TRPBF
Description IC LED DRIVER CTRLR DIM 28TSSOP eval board led driver lt3760 IC LED DRIVER CTRLR DIM 28TSSOP IC LED DRIVER CTRLR DIM 28TSSOP IC LED DRIVER CTRLR DIM 28TSSOP
type DC DC controller - DC DC controller DC DC controller DC DC controller
Topology Boost - Boost Boost Boost
internal switch none - none none none
Number of outputs 8 - 8 8 8
Voltage - Power supply (minimum) 6V - 6V 6V 6V
Voltage - Power Supply (Highest) 40V - 40V 40V 40V
Voltage - Output 6.95V - 6.95V 6.95V 6.95V
Current - Output/Channel 100mA - 100mA 100mA 100mA
frequency 100kHz ~ 1MHz - 100kHz ~ 1MHz 100kHz ~ 1MHz 100kHz ~ 1MHz
Dimming Analog, PWM - Analog, PWM Analog, PWM Analog, PWM
application backlight - backlight backlight backlight
Operating temperature -40°C ~ 125°C (TJ) - -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Installation type surface mount - surface mount surface mount surface mount
Package/casing 28-SOIC (0.173", 4.40mm wide) exposed pad - 28-SOIC (0.173", 4.40mm wide) exposed pad 28-SOIC (0.173", 4.40mm wide) exposed pad 28-SOIC (0.173", 4.40mm wide) exposed pad
Supplier device packaging 28-TSSOP-EP - 28-TSSOP-EP 28-TSSOP-EP 28-TSSOP-EP
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