- 您现在的位置：买卖IC网 > PDF目录20722 > A6282ELP-T (Allegro Microsystems Inc)IC LED DRIVER LINEAR 24-TSSOP PDF资料下载
参数资料
| 型号： | A6282ELP-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-TSSOP |
| 标准包装： | 62 |
| 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-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 24-TSSOP 裸露焊盘 |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 620-1222-5 |
A6282
16-Channel Constant-Current LED Driver
Functional Description
Normal Operation
Serial data present at the SDI (Serial Data In) input is transferred
to the shift register on the transition from logic 0 to logic 1 of the
CLK (Clock) input pulse. On succeeding CLK pulses, the register
shifts data towards the SDO (Serial Data Out) output. The serial
data must appear at the input prior to the rising edge of the CLK
waveform.
Data present in any register is transferred to the respective latch
when the LE (Latch Enable) input is high (serial-to-parallel con-
version). The latches continue to accept new data as long as LE is
held high (level triggered).
Applications where the latches are bypassed (LE tied high)
require that the ˉOˉ ˉ Eˉ (Output Enable) input be high during serial
data entry. When ˉOˉ ˉ Eˉ is high, the output sink drivers are disabled
(off). The data stored in the latches is not affected by the state
of ˉOˉ ˉ Eˉ . With ˉOˉ ˉ Eˉ active (low), the outputs are controlled by the
state of their respective latches.
Setting Maximum Channel Current
The maximum output current per channel is set by a single exter-
nal resistor, REXT, which is placed between the REXT pin and
GND. The voltage on REXT, V EXT , is set by an internal band gap
and is 1.21 V, typical.
The maximum channel output current can be calculated as:
I O (max) = (18483.1/ R EXT ) + 0.67 , for V DD = 3.0 to 3.6 V ,
or
I O (max) = (18841.2/ R EXT ) + 0.68 , for V DD = 4.5 to 5.5 V ,
where R EXT is the value of the user-selected external resistor,
which should not be less than 374 Ω .
A chart of the maximum per channel (OUT0 to OUT15) constant
output current, I O (max), at various values of R EXT , is shown in
the Operating Characteristics section.
Undervoltage Lockout
The A6282 includes an internal undervoltage lockout (UVLO)
circuit that disables the outputs in the event that the logic supply
voltage drops below a minimum acceptable level. This feature
prevents the display of erroneous information, a necessary func-
tion for some critical applications. Upon recovery of the logic
supply voltage after a UVLO event, all internal shift registers and
latches are set to 0. The A6282 is then in normal mode.
Thermal Shutdown Protection
If the junction temperature exceeds the threshold temperature,
T JTSD , 165°C typical, the outputs will be turned off until the junc-
tion temperature cools down through the thermal shutdown hys-
teresis, 15°C typical. The shift register and output latches register
will remain active during a thermal shutdown event. Therefore,
there is no need to reset the data in the output latches.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
9
相关PDF资料 |
PDF描述 |
|---|---|
| VE-J3P-CX-F3 | CONVERTER MOD DC/DC 13.8V 75W |
| EMA49DTKD | CONN EDGECARD 98POS DIP .125 SLD |
| ACM36DRMS | CONN EDGECARD 72POS .156 WW |
| HSC36DRYS-S93 | CONN EDGECARD 72POS DIP .100 SLD |
| HSC44DRTI-S734 | CONN EDGECARD 88POS DIP .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A6282ELPTR-T | 功能描述:IC LED DRIVER LINEAR 24-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
| A6282ELW-T | 功能描述:IC LED DRIVER LINEAR 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:1 系列:- 恒定电流:- 恒定电压:- 拓扑:PWM，切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:642kHz 电源电压:2.7 V ~ 5.5 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商设备封装:10-VSON 包装:剪切带 (CT) 工作温度:-30°C ~ 85°C 产品目录页面:1371 (CN2011-ZH PDF) 其它名称:BD1603NUV-E2CT |
| A6282ELWTR-T | 功能描述:IC LED DRIVER LINEAR 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:1 系列:- 恒定电流:- 恒定电压:- 拓扑:PWM，切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:642kHz 电源电压:2.7 V ~ 5.5 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商设备封装:10-VSON 包装:剪切带 (CT) 工作温度:-30°C ~ 85°C 产品目录页面:1371 (CN2011-ZH PDF) 其它名称:BD1603NUV-E2CT |
| A6283 | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:4.6W DUAL AUDIO POWER AMPLIFIER |
| A628-31 | 功能描述:ADAPTER PROGRAMMER 56-TSOP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
发布紧急采购，3分钟左右您将得到回复。