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LED Driver. LM3410 Datasheet

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LED Driver. LM3410 Datasheet






LM3410 Driver. Datasheet pdf. Equivalent




LM3410 Driver. Datasheet pdf. Equivalent





Part

LM3410

Description

Constant Current Boost and SEPIC LED Driver



Feature


LM3410 PowerWise® 525kHz/1.6MHz, Consta nt Current Boost and SEPIC LED Driver w ith Internal Compensation January 23, 2008 LM3410 PowerWise® 525kHz/1.6MHz, Constant Current Boost and SEPIC LED D river with Internal Compensation Genera l Description The LM3410 constant curre nt LED driver is a monolithic, high fre quency, PWM DC/DC converter in 5-pin SO T23, 6-pin LLP, & 8-.
Manufacture

National Semiconductor

Datasheet
Download LM3410 Datasheet


National Semiconductor LM3410

LM3410; pin eMSOP packages. With a minimum of ex ternal components the LM3410 is easy to use. It can drive 2.8A typical peak cu rrents with an internal 170 mΩ NMOS s witch. Switching frequency is internall y set to either 525 kHz or 1.60 MHz, al lowing the use of extremely small surfa ce mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies .


National Semiconductor LM3410

up to 88% are easy to achieve. External shutdown is included, featuring an ultr a-low standby current of 80 nA. The LM3 410 utilizes current-mode control and i nternal compensation to provide high-pe rformance over a wide range of operatin g conditions. Additional features inclu de dimming, cycle-by-cycle current limi t, and thermal shutdown. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Sp.


National Semiconductor LM3410

ace Saving SOT23-5 & 6-LLP Package Input voltage range of 2.7V to 5.5V Output v oltage range of 3V to 24V 2.8A Typical Switch Current High Switching Frequency — 525 KHz (LM3410-Y) — 1.6 MHz (LM 3410-X) 170 mΩ NMOS Switch 190 mV Int ernal Voltage Reference Internal Soft-S tart Current-Mode, PWM Operation Therma l Shutdown Applications ■ ■ ■ LED Backlight Current Source L.

Part

LM3410

Description

Constant Current Boost and SEPIC LED Driver



Feature


LM3410 PowerWise® 525kHz/1.6MHz, Consta nt Current Boost and SEPIC LED Driver w ith Internal Compensation January 23, 2008 LM3410 PowerWise® 525kHz/1.6MHz, Constant Current Boost and SEPIC LED D river with Internal Compensation Genera l Description The LM3410 constant curre nt LED driver is a monolithic, high fre quency, PWM DC/DC converter in 5-pin SO T23, 6-pin LLP, & 8-.
Manufacture

National Semiconductor

Datasheet
Download LM3410 Datasheet




 LM3410
January 23, 2008
LM3410
PowerWise® 525kHz/1.6MHz, Constant Current Boost and
SEPIC LED Driver with Internal Compensation
General Description
The LM3410 constant current LED driver is a monolithic, high
frequency, PWM DC/DC converter in 5-pin SOT23, 6-pin LLP,
& 8-pin eMSOP packages. With a minimum of external com-
ponents the LM3410 is easy to use. It can drive 2.8A typical
peak currents with an internal 170 mNMOS switch. Switch-
ing frequency is internally set to either 525 kHz or 1.60 MHz,
allowing the use of extremely small surface mount inductors
and chip capacitors. Even though the operating frequency is
high, efficiencies up to 88% are easy to achieve. External
shutdown is included, featuring an ultra-low standby current
of 80 nA. The LM3410 utilizes current-mode control and in-
ternal compensation to provide high-performance over a wide
range of operating conditions. Additional features include
dimming, cycle-by-cycle current limit, and thermal shutdown.
Features
Space Saving SOT23-5 & 6-LLP Package
Input voltage range of 2.7V to 5.5V
Output voltage range of 3V to 24V
2.8A Typical Switch Current
High Switching Frequency
525 KHz (LM3410-Y)
1.6 MHz (LM3410-X)
170 mNMOS Switch
190 mV Internal Voltage Reference
Internal Soft-Start
Current-Mode, PWM Operation
Thermal Shutdown
Applications
LED Backlight Current Source
LiIon Backlight OLED & HB LED Driver
Handheld Devices
LED Flash Driver
Typical Boost Application Circuit
30038501
© 2008 National Semiconductor Corporation 300385
30038502
www.national.com
Free Datasheet http://www.datasheet4u.com/




 LM3410
Connection Diagrams
Top View
Top View
Top View
30038503
5–Pin SOT23
Ordering Information
Order Number
LM3410YMF
LM3410YMFX
LM3410YSD
LM3410YSDX
LM3410YMY
LM3410YMYX
LM3410XMF
LM3410XMFX
LM3410XSD
LM3410XSDX
LM3410XMY
LM3410XMYX
Frequency
525 kHz
1.6 MHz
6-Pin LLP
30038504
8-Pin eMSOP
30038505
Package Type
SOT23-5
LLP-6
eMSOP-8
SOT23-5
LLP-6
eMSOP-8
Package Drawing
MF05A
SDE06A
MUY08A
MF05A
SDE06A
MUY08A
Supplied As
1000 units Tape & Reel
3000 units Tape & Reel
1000 units Tape & Reel
4500 units Tape & Reel
1000 units Tape & Reel
3500 units Tape & Reel
1000 units Tape & Reel
3000 units Tape & Reel
1000 units tape & reel
4500 units Tape & Reel
1000 units Tape & Reel
3500 units Tape & Reel
www.national.com
2
Free Datasheet http://www.datasheet4u.com/




 LM3410
Pin Descriptions - 5-Pin SOT23
Pin Name Function
1 SW Output switch. Connect to the inductor, output diode.
2
GND
Signal and power ground pin. Place the bottom resistor of the feedback network as close as possible to this
pin.
3 FB Feedback pin. Connect FB to external resistor divider to set output voltage.
4
DIM
Dimming & shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not allow
this pin to float or be greater than VIN + 0.3V.
5 VIN Supply voltage pin for power stage, and input supply voltage.
Pin Descriptions - 6-Pin LLP
Pin
1
2
3
4
5
6
DAP
Name
PGND
VIN
DIM
FB
AGND
SW
GND
Function
Power ground pin. Place PGND and output capacitor GND close together.
Supply voltage for power stage, and input supply voltage.
Dimming & shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not allow
this pin to float or be greater than VIN + 0.3V.
Feedback pin. Connect FB to external resistor divider to set output voltage.
Signal ground pin. Place the bottom resistor of the feedback network as close as possible to this pin & pin
4.
Output switch. Connect to the inductor, output diode.
Signal & Power ground. Connect to pin 1 & pin 5 on top layer. Place 4-6 vias from DAP to bottom layer GND
plane.
Pin Descriptions - 8-Pin eMSOP
Pin
1
2
3
4
5
6
7
8
DAP
Name
-
PGND
VIN
DIM
FB
AGND
SW
-
GND
Function
No Connect
Power ground pin. Place PGND and output capacitor GND close together.
Supply voltage for power stage, and input supply voltage.
Dimming & shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not allow
this pin to float or be greater than VIN + 0.3V.
Feedback pin. Connect FB to external resistor divider to set output voltage.
Signal ground pin. Place the bottom resistor of the feedback network as close as possible to this pin & pin 5
Output switch. Connect to the inductor, output diode.
No Connect
Signal & Power ground. Connect to pin 2 & pin 6 on top layer. Place 4-6 vias from DAP to bottom layer GND
plane.
3 www.national.com
Free Datasheet http://www.datasheet4u.com/






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