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参数资料
| 型号： | A6282ELWTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-SOIC |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 线性 |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 颜色，白色 LED |
| 频率： | 30MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 12V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 620-1269-6 |
A6282
16-Channel Constant-Current LED Driver
Features and Benefits
Description
?
?
?
?
16 constant-current outputs, up to 50 mA each
LED output voltage up to 12V
3.0 to 5.5 V logic supply range
Schmitt trigger inputs for improved noise immunity
The A6282 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
? 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-contact QFN
4 mm × 4 mm × 0.75 mm
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
24-pin TSSOP
(Package ES)
with exposed thermal pad
(Package LP)
Not to scale
Typical Application
V LED
10 μ F
10 μ F
SDI
SDI
OUT0
OUT15
SDO
SDI
OUT0
OUT15
SDO
Controller
CLK
LE
CLK
LE
A6282
VDD
GND
V DD
100 nF
CLK
LE
A6282
VDD
GND
V DD
100 nF
OE
OE
REXT
OE
REXT
6282-DS, Rev. 4
IC 1
Cascaded A6282 devices
IC 2
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