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參數(shù)資料
| 型號： | A2550KLPTR-T |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Relay Driver with 5 V Regulator for Automotive Applications |
| 中文描述： | 繼電器驅動器，帶有5 V穩(wěn)壓器為汽車應用 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 560K |
| 代理商： | A2550KLPTR-T |
Description
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
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.
2550-DS
Features and Benefits
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
Relay Driver with 5 V Regulator
for Automotive Applications
Continued on the next page…
Package: 16 pin TSSOP (suffix LP) with
exposed pad
Typical Application
Approximate Scale
A2550
OUT1
OUT2
OUT3
PGND
CWD
CPOR
ENBAT
VBB
1
2
3
4
5
6
7
8
IN1
IN2
IN3
LGND
NPOR
WDI
EN
VREG5
16
15
14
13
12
11
10
9
A2550
System
Logic
Relays or other
inductive loads
0.47
μ
F
X7R
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| A2557EB | 功能描述:IC DRIVER QUAD 60V 300MA 16-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 內部開關 系列:- 標準包裝:1,000 系列:- 類型:高端/低端驅動器 輸入類型:SPI 輸出數(shù):8 導通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:PG-DSO-20-45 包裝:帶卷 (TR) |
| A2557EB-T | 功能描述:IC DRIVER QUAD 60V 300MA 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 內部開關 系列:- 標準包裝:1,000 系列:- 類型:高端/低端驅動器 輸入類型:SPI 輸出數(shù):8 導通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:PG-DSO-20-45 包裝:帶卷 (TR) |
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