- 您现在的位置：买卖IC网 > PDF目录1772 > A2550KLPTR-T (Allegro Microsystems Inc)IC RELAY DRVR AUTO W/REG 16TSSOP PDF资料下载
参数资料
| 型号： | A2550KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC RELAY DRVR AUTO W/REG 16TSSOP |
| 标准包装： | 1 |
| 应用： | 汽车用，继电器驱动器 |
| 输出数： | 3 |
| 电源电压： | 7 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1182-6 |
A2550
Relay Driver with 5 V Regulator
for Automotive Applications
Functional Description
Pin Descriptions
EN Enable pin; logical OR with ENBAT. This logic-level
input enables the A2550. If there are no faults, the regulator
is live and outputs can be switched. When both the EN and
ENBAT pins are held low, the A2550 enters Sleep mode.
ENBAT Enable pin; logical OR with EN. Same as EN,
except that this pin is high-voltage protected, and specified
up to V BB so it can be tied to the battery or power source.
Not to exceed V BB because the ESD structure places a diode
between the ENBAT and VBB pins.
WDI Watchdog Input. Monitors the microcontroller to detect
when it stops functioning. This pin is connected to an edge
trigger. To avoid a fault, the latter must be triggered before
CWD times-out. When not used, WDI is defeated by tying it
to NPOR and shorting CWD.
CWD Watchdog timer capacitor terminal. Used with WDI.
A current source charges the external capacitor tied to this
pin. A reverse current source discharges the capacitor when
either WDI transitions or the high Trip Voltage, V TRIP(H) , is
reached (see specification table for values). The charge-up
time defines the maximum period allowed WDI to toggle
before a fault is issued; the charge-down time defines the
width of NPOR pulses issued to wake-up the microcon-
troller.
NPOR NOT Power On Reset. This active-low pin indicates
a fault. Except for watchdog faults, NPOR is held low during
the fault state. Refer to the Fault Logic table to determine
which faults are latched. Watchdog faults generate a train of
pulses to “wake up” the microcontroller.
CPOR Power-On Reset timer capacitor terminal. When-
ever VREG5 first charges up (at start-up or when a fault
is cleared) a “fault” condition remains in effect until the
onboard current source drives CPOR to the high Trip Volt-
age, V TRIP(H) . This allows external circuits, such as a micro-
controller, to be initialized before activating the outputs.
CPOR is defeated by pulling it high to VREG5 with a 50 k ?
resistor.
INx Input pin. Active-high CMOS input. Internally tied to
200 k ? pull-down resistors.
OUTx Output pin. Open drain DMOS. Clamps to a voltage
greater than V BB when an inductive load is switched off.
Includes current mirror for overcurrent protection.
VBB Power pin, or “battery.” Specified for automotive volt-
ages.
VREG5 5 V Regulator output. Clamped at the Current
Limit Level ( I REG5Lim ) for excessive loads. As load resistance
decreases, VREG5 is pulled below the UVLO level. In that
case, a fault is generated (NPOR low).
LGND Logic Ground. The reference pin for the logic
circuits. Must be connected to PGND externally.
PGND Power Ground. The reference pin for the outputs
(OUTx). Must be connected to LGND externally.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
7
相关PDF资料 |
PDF描述 |
|---|---|
| A3901SEJTR-T | IC MOTOR DRVR STEPPER DUAL 10MLP |
| A3903EEETR-T | IC MOTOR DRIVER DC LV 8-DFN |
| A3904ECGTR | IC VOICE COIL MOTOR DVR 6-WLCSP |
| A3906SES-T | IC DVR DC/STEPPER MOTOR DUAL |
| A3908EEETR-T | IC MOTOR DRIVER DC LV 500MA 8DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A2550N | 制造商:SONY 制造商全称:Sony Corporation 功能描述:RF Amplifier for CD Players |
| A2557 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE |
| A2557_09 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Protected Quad Driver with Fault Detection and Sleep Mode |
| A2557EB | 功能描述:IC DRIVER QUAD 60V 300MA 16-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 内部开关 系列:- 标准包装:1,000 系列:- 类型:高端/低端驱动器 输入类型:SPI 输出数:8 导通状态电阻:850 毫欧，1.6 欧姆 电流 - 输出 / 通道:205mA，410mA 电流 - 峰值输出:500mA，1A 电源电压:9 V ~ 16 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:PG-DSO-20-45 包装:带卷 (TR) |
| A2557EB-T | 功能描述:IC DRIVER QUAD 60V 300MA 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 内部开关 系列:- 标准包装:1,000 系列:- 类型:高端/低端驱动器 输入类型:SPI 输出数:8 导通状态电阻:850 毫欧，1.6 欧姆 电流 - 输出 / 通道:205mA，410mA 电流 - 峰值输出:500mA，1A 电源电压:9 V ~ 16 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:PG-DSO-20-45 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。