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UMK316BJ475KL-T

Description
CAPACITOR, CERAMIC, MULTILAYER, 50 V, X5R, 4.7 uF, SURFACE MOUNT, 1206
CategoryPassive components   
File Size616KB,17 Pages
ManufacturerAllegro
Websitehttp://www.allegromicro.com/
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UMK316BJ475KL-T Overview

CAPACITOR, CERAMIC, MULTILAYER, 50 V, X5R, 4.7 uF, SURFACE MOUNT, 1206

UMK316BJ475KL-T Parametric

Parameter NameAttribute value
Maximum operating temperature85 Cel
Minimum operating temperature-55 Cel
negative deviation10 %
positive deviation10 %
Rated DC voltage urdc50 V
Processing package descriptionChip, ROHS COMPLIANT
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
terminal coatingtin
Installation featuressurface mount
Manufacturer SeriesM
size code1206
capacitance4.7 uF
packaging shapeRectangular PACKAGE
Capacitor typeceramics
Terminal shapeWRAPAROUND
Temperature Coefficient15%
Temperature characteristic code×5R
multi-layerYes
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

UMK316BJ475KL-T Related Products

UMK316BJ475KL-T A6211 B250A-13-F EMZA500ADA470MF80G NR8040T100M RL1632R-R150-F
Description CAPACITOR, CERAMIC, MULTILAYER, 50 V, X5R, 4.7 uF, SURFACE MOUNT, 1206 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 1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD RESISTOR, CURRENT SENSE, THIN FILM, 0.5 W, 1 %, 100 ppm, 0.15 ohm, 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 tin MATTE Tin MATTE Tin Tin BISMUTH NOT SPECIFIED MATTE TIN
Maximum operating temperature 85 Cel - - 105 Cel 120 Cel 125 Cel
Minimum operating temperature -55 Cel - - -55 Cel -25 Cel -55 Cel
Manufacturer Series M - - MZA NR8040 RL
packaging shape Rectangular PACKAGE Rectangle Rectangle Cylindrical PACKAGE - RECTANGULAR PACKAGE
Terminal shape WRAPAROUND - - FLAT ONE SURFACE WRAPAROUND
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