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参数资料
| 型号： | A2550KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/15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
Features and Benefits
Description
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Three independent low-side DMOS output drivers
Short-circuit protection of drivers
Eliminates need for flyback diodes on relays
Thermal shutdown
Separate precision 5 V regulator (2%)
Current clamp on 5 V regulator
16-pin TSSOP package with exposed thermal pad
Programmable reset (NPOR) delay time
Programmable watchdog
Automotive voltage and temperature ranges
Active clamps for automotive load dump specifications
Lead (Pb) free
Large numbers of relay-based applications require the use of a
microprocessor which implements complex system control. In
these systems, there is the need for microprocessor logic supply
voltage, power-on reset circuitry, and watchdog capabilities. The
Allegro ? A2550 combines the functions of voltage regulator,
watchdog, and reset, as well as three low-side DMOS relay
driver outputs. Primarily targeted at automotive applications,
this IC is designed to provide robust performance over extended
voltage and temperature ranges.
Three low-side DMOS drivers can drive inductive loads, such
as relay coils. Each driver integrates rugged voltage clamps
which survive automotive load dump pulses up to 48 V. The
40 V rating on VBB also ensures adequate survival in harsh
Package: 16 pin TSSOP (suffix LP) with
exposed pad
Approximate Scale
automotive environments.
A 5 V linear regulator provides 40 mA of output current, with
a tolerance of 2% over the operating temperature range. To
enhance the usefulness of the IC in automotive applications,
the 5 V regulator output, as well as the three low-side driver
outputs are protected against overcurrent conditions.
Continued on the next page…
Typical Application
System
Logic
1
2
3
4
5
6
7
8
IN1
IN2
IN3 A2550
LGND
NPOR
WDI
EN
VREG5
OUT1
OUT2
OUT3
PGND
CWD
CPOR
ENBAT
VBB
16
15
14
13
12
11
10
9
Relays or other
inductive loads
0.47 μ F
X7R
2550-DS, Rev. 4
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| 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) |
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