参数资料
型号: A6264KLYTR-T
厂商: Allegro Microsystems Inc
文件页数: 8/16页
文件大小: 0K
描述: IC LED DVR STOP/TAIL 10-MSOP
标准包装: 1
恒定电流:
拓扑: 线性(LDO),PWM
输出数: 4
内部驱动器:
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: 620-1363-6
A6264
Automotive Stop/Tail LED Array Driver
Detailed Description of Regulator Operation
The current sourced from each LAx output is determined by the
internal reference current as:
Two external resistors determine I REF and I REFH :
? Resistor R REF , from IREF to GND, such that
I LAx = G H × I REFI
(3)
I REF = 1200 / R REF
(4)
where I LAx is the current sourced from each LAx pin, G H is the
current gain, typically 12.5, and I REFI is the internal current refer-
ence.
? Resistor R REFH , from IREFH to GND, such that
The internal current reference, I REFI , has two possible values
depending on the state of the FULL input:
I REFH = 1200 / R REFH
(5)
? When FULL is low, I REFI is defined by I REF , the current drawn
from the IREF pin.
? When FULL is high, I REFI is defined by the sum of I REF and
I REFH , the current drawn from the IREFH pin.
where I REFx are in mA and R REFX are in Ω .
The voltage at the IREF and IREFH pins is a fixed, 1.2 V refer-
ence.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
8
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