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Details for LM3405AXMY/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs
LED DRIVER BUCK 1.6MHZ HVSSOP-8
LM3405AXMY/NOPB image

LM3405AXMY/NOPB by Texas Instruments

LED DRIVER BUCK 1.6MHZ HVSSOP-8
Features
1.6-MHz Switching Frequency
300-mu2126 NMOS Switch
40-nA Shutdown Current at VIN = 5 V
Cycle-by-Cycle Current Limit
Drives up to 5 High-Brightness LEDs in Series at 1 A
EN/DIM Input for Enabling and PWM Dimming of LEDs
Input Voltage UVLO
Internally Compensated Current-mode Control
Overcurrent Protection
Thermal Shutdown
Thin SOT-6 and MSOP-PowerPADu2122-8 Packages
VIN Operating Range of 3 V to 22 V
Part Information
LM3405AXMY/NOPB image
RoHS Compliant
Description
The LM3405A is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.205-V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Switching frequency is internally set to 1.6 MHz, allowing small surface mount inductors and capacitors to be used. The LM3405A uses current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. With a maximum input voltage of 22 V, the device can drive up to 5 High-Brightness LEDs in series at 1-A forward current, with the single LED forward voltage of approximately 3.7 V. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by-cycle current limit and overcurrent protection.
Specifications
Device Topology:
Buck (Step Down)
Input Voltage Min:
3V
Input Voltage Max:
22V
Output Voltage Max:
20V
Output Current Max:
1A
Switching Frequency:
1.6MHz
No. of Outputs:
1Outputs
IC Mounting:
SMD
Driver Case Style:
MSOP PowerPAD
No. of Pins:
8Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Output Current:
1A
Output Voltage:
20V
Alternate Descriptions
LED DRIVER, BUCK, 1.6MHZ, HVSSOP-8; Device Topology:Buck (Step Down); Input Voltage Min:3V; Input Voltage Max:22V; Output Voltage Max:20V; Output Current Max:1A; Switching Frequency:1.6MHz; No. of Outputs:1Outputs; IC Mounting:SMD; RoHS Compliant: Yes Newark Electronics
LED DRVR 5Segment 3.3V/5V/9V/12V/15V/18V 8-Pin MSOP T/R Avnet America
LED DRVR 5Segment 3.3V/5V/9V/12V/15V/18V 8-Pin MSOP T/R Avnet Europe