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参数资料
| 型号： | A6261KLYTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 10/19页 |
| 文件大小： | 0K |
| 描述： | IC LED ARRAY DVR 400MA 10-MSOP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 线性（LDO），PWM |
| 输出数： | 4 |
| 类型 - 主要： | 车载，通用 |
| 类型 - 次要： | 高亮度 LED（HBLED） |
| 电源电压： | 6 V ~ 50 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 125°C |
| 其它名称： | 620-1359-6 |
A6261
Protected LED Array Driver
T JM will increase as the voltage at the THTH pin, V THTH , is
reduced and is defined as approximately:
T JM = 1.46 – V THTH (°C)
0.0039
(4)
In extreme cases, if the chip temperature exceeds the overtem-
perature limit, T JF , all regulators will be disabled. The tempera-
ture will continue to be monitored and the regulators re-activated
when the temperature drops below the threshold provided by the
specified hysteresis.
A resistor connected between THTH and GND will reduce V THTII
and increase T JM . A resistor connected between THTH and a refer-
ence supply greater than 1 V will increase V THTH and reduce T JM .
Figure 3 shows how the nominal value of the thermal monitor
activation temperature varies with the voltage at THTH and with
either a pull-down resistor, R TH , to GND or with a pull-up resis-
tor, R TH , to 3 V and to 5 V.
250
200
R TH pull-up
to 5 V
150
Note that it is possible for the A6261 to transition rapidly
between thermal shutdown and normal operation. This can hap-
pen if the thermal mass attached to the exposed thermal pad is
small and T JM is increased to close to the shutdown temperature.
The period of oscillation will depend on T JM , the dissipated
power, the thermal mass of any heatsink present, and the ambient
temperature.
1.3
1.2
1.1
R TH pull-down
to GND
100
50
0
R TH pull-up
to 3 V
V THTH
1.0
0.9
0.8
70
80
90
100
110
120
130
140
150
Thermal Monitor Activation Temperature, T JM (°C)
Figure 3. T JM versus a pull-up or pull-down resistor, R TH , and V THTH .
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
10
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相关代理商/技术参数 |
参数描述 |
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| A6262 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A6262 is a linear, programmable current regulator providing up to 100 mA from each of four outputs to drive arrays of high brightness LEDs. |
| A6262KLPTR-T | 功能描述:IC LED ARRAY DRIVER AUTO 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），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:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| A6262KLYTR-T | 功能描述:IC LED ARRAY DRIVER AUTO 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 特色产品:LM3445 TRIAC Dimmable LED Driver 标准包装:55 系列:PowerWise® 恒定电流:是 恒定电压:- 拓扑:PWM，降压（降压） 输出数:1 内部驱动器:无 类型 - 主要:- 类型 - 次要:高亮度 LED（HBLED） 频率:30kHz ~ 1MHz 电源电压:8 V ~ 12 V 输出电压:- 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOICN 包装:管件 工作温度:-40°C ~ 125°C 产品目录页面:1285 (CN2011-ZH PDF) 其它名称:LM3445M |
| A6263 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Protected LED Array Driver |
| A62635-000 | 制造商:TE Connectivity 功能描述:TP-FIREST-0.750 - Bulk |
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