파트넘버.co.kr A6282 데이터시트 PDF


A6282 반도체 회로 부품 판매점

16-Channel Constant-Current LED Driver



Allegro MicroSystems 로고
Allegro MicroSystems
A6282 데이터시트, 핀배열, 회로
A6282
16-Channel Constant-Current LEDDriver
Features and Benefits
16 constant-current outputs, up to 50 mA each
LED output voltage up to 12 V
3.0 to 5.5 V logic supply range
Schmitt trigger inputs for improved noise immunity
Power-On Reset (POR), all register bits = 0
Low-power CMOS logic and latches
High data input rate: 30 MHz
Output current accuracy: between channels < ±3% and
between ICs ±7%, over the full operating temperature
range
Internal UVLO and thermal shutdown (TSD) circuitry
Packages:
24-pin TSSOP
with exposed thermal pad
(Package LP)
Not to scale
24-contact QFN
4 mm × 4 mm × 0.75 mm
(Package ES)
Description
TheA6282 device is designed for LED display applications.This
CMOS device includes an input shift register, accompanying
data latches, and 16 MOS constant current sink drivers.
The CMOS shift registers and latches allow direct interfacing
with microprocessor-based systems. With a 3.3 or 5 V logic
supply, typical serial data input rates can reach up to 30 MHz.
The LED drive current level can be set by a single external
resistor, selected by the application designer. A serial data
output permits cascading of multiple devices in applications
requiring additional drive lines.
The A6282 is available in two 24-terminal packages: QFN
(package ES) and TSSOP (LP), which have an exposed
thermal pad. Both packages are lead (Pb) free with 100% matte
tin leadframe plating.
Applications include the following:
Monocolor, multicolor, or full-color LED display
Monocolor, multicolor, or full-color LED signboard
Display backlighting
Multicolor LED lighting
SDI
Controller
CLK
LE
OE
Typical Application
VLED
10 μF
SDI OUT0
OUT15
SDO
CLK VDD VDD
LE A6282
100 nF
GND
OE
REXT
IC 1
SDI
CLK
LE
OE
10 μF
OUT0
A6282
OUT15 SDO
VDD VDD
100 nF
GND
REXT
IC 2
6282-DS, Rev. 4
Cascaded A6282 devices


A6282 데이터시트, 핀배열, 회로
A6282
16-Channel Constant-Current LED Driver
Selection Guide
Part Number
A6282EESTR-T
A6282ELPTR-T
Package
4 mm × 4 mm QFN, 24 pins, exposed thermal pad
TSSOP, 24 pins, exposed thermal pad
Packing
1500 pieces per 7-in. reel
4000 pieces per 13 in. reel
Absolute Maximum Ratings
Characteristic
Supply Voltage*
OUTx Current (any single output)
Input Voltage Range*
LED Load Supply Range*
ESD Rating
Symbol
Notes
VDD
IO
VI
VLED
VOE, VLE, VCLK, VSDI
HBM (JEDEC JESD22-A114, Human Body Model)
CDM (JEDEC JESD22-C101, Charged Device Model)
Operating Temperature Range (E)
Junction Temperature
Storage Temperature Range
*With respect to ground.
TA
TJ(max)
Tstg
Rating
–0.3 to 5.5
60
–0.3 to VDD + 0.3
–0.3 to 13.2
2.0
1.0
–40 to 85
150
–55 to 150
Unit
V
mA
V
V
kV
kV
°C
°C
°C
Thermal Characteristics
Characteristic
Package Thermal Resistance
Symbol
RθJA
Test Conditions1
ES package, 4-layer PCB based on JEDEC standard
LP packge, 4-layer PCB based on JEDEC standard
*Additional thermal information available on the Allegro website.
5.0
Value
37
28
Units
°C/W
°C/W
4.0
3.0 PacPkaacgkeagEeSL,PR, RQJA = 28 °C/W
2.0 QJA = 37 °C/W
1.0
0
25
50 75 100 125
Ambient Temperature (°C)
150
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2




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A6282 led

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