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NR8040T100M

Description
1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD
CategoryThe sensor   
File Size616KB,17 Pages
ManufacturerAllegro
Websitehttp://www.allegromicro.com/
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NR8040T100M Overview

1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD

NR8040T100M Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals2
Maximum operating temperature120 Cel
Minimum operating temperature-25 Cel
Rated inductance10 uH
self resonant frequency22 MHz
Processing package descriptionChip, ROHS COMPLIANT
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
isolationYes
core materialFERRITE
DC Resistance0.0340 ohm
surface mountYes
Terminal shapeONE SURFACE
special functionDCR IS MEASURED AT 30% TOLERANCE
terminal coatingNOT SPECIFIED
Terminal layoutDouble ENDED
Manufacturer SeriesNR8040
Inductor applicationsDC-DC converter
Shape and size descriptionRectangular PACKAGE
deviation20 %
Inductor typeUniversal inductor
1Rated value test frequency0.1000 MHz
Maximum rated current3.1 A
A6211
Constant-Current 3-Ampere PWM Dimmable
Buck Regulator LED Driver
Features and Benefits
• Supply voltage 6 to 48 V
• True average output current control
• 3.0 A maximum output over operating temperature range
• Cycle-by-cycle current limit
• Integrated MOSFET switch
• Dimming via direct logic input or power supply voltage
• Internal control loop compensation
• Undervoltage lockout (UVLO) and thermal shutdown
protection
• Low power shutdown (1
μA
typical)
• Robust protection against:
Adjacent pin-to-pin short
Pin-to-GND short
Component open/short faults
Description
The A6211 is a single IC switching regulator that provides
constant-current output to drive high-power LEDs. It integrates
a high-side N-channel DMOS switch for DC-to-DC step- down
(buck) conversion. A true average current is output using a
cycle-by-cycle, controlled on-time method.
Output current is user-selectable by an external current sense
resistor. Output voltage is automatically adjusted to drive
various numbers of LEDs in a single string. This ensures the
optimal system efficiency.
LED dimming is accomplished by a direct logic input pulse
width modulation (PWM) signal at the enable pin.
The device is provided in a compact 8-pin narrow SOIC package
(suffix LJ) with exposed pad for enhanced thermal dissipation.
It is lead (Pb) free, with 100% matte tin leadframe plating.
Package 8-pin SOICN with exposed
thermal pad (suffix LJ):
Applications:
• General Illumination
• Scanners and multi-function printers (light bars)
• Architectural lighting
• Industrial Lighting
• Display case lighting / MR16
Not to scale
Typical Application Circuit
V
IN
(6 to 48 V)
GND
C1
1
R1 2
EN
A6211
7
TON
BOOT
3
6
GND
EN
4
VCC 5
CS
VIN
SW
8
C4
D1
...
L1
LED+
Enable/PWM Dimming
(100 Hz to 2 kHz)
C5
LED–
RSENSE
A6211-DS

NR8040T100M Related Products

NR8040T100M A6211 B250A-13-F EMZA500ADA470MF80G RL1632R-R150-F UMK316BJ475KL-T
Description 1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD 2 A, 50 V, SILICON, RECTIFIER DIODE 2 A, 50 V, SILICON, RECTIFIER DIODE CAPACITOR, ALUMINUM ELECTROLYTIC, NON SOLID, POLARIZED, 50 V, 47 uF, SURFACE MOUNT RESISTOR, CURRENT SENSE, THIN FILM, 0.5 W, 1 %, 100 ppm, 0.15 ohm, SURFACE MOUNT, 1206 CAPACITOR, CERAMIC, MULTILAYER, 50 V, X5R, 4.7 uF, SURFACE MOUNT, 1206
Processing package description Chip, ROHS COMPLIANT GREEN, PLASTIC, SMA, 2 PIN GREEN, PLASTIC, SMA, 2 PIN ROHS COMPLIANT CHIP, ROHS COMPLIANT Chip, ROHS COMPLIANT
EU RoHS regulations Yes Yes Yes Yes Yes Yes
state ACTIVE ACTIVE ACTIVE TRANSFERRED Active ACTIVE
terminal coating NOT SPECIFIED MATTE Tin MATTE Tin Tin BISMUTH MATTE TIN tin
Maximum operating temperature 120 Cel - - 105 Cel 125 Cel 85 Cel
Minimum operating temperature -25 Cel - - -55 Cel -55 Cel -55 Cel
Terminal shape ONE SURFACE - - FLAT WRAPAROUND WRAPAROUND
Manufacturer Series NR8040 - - MZA RL M
packaging shape - Rectangle Rectangle Cylindrical PACKAGE RECTANGULAR PACKAGE Rectangular PACKAGE
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