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參數(shù)資料
| 型號： | A2550 |
| 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： | A2550 |
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
相關PDF資料 |
PDF描述 |
|---|---|
| A2550KLP-T | Relay Driver with 5 V Regulator for Automotive Applications |
| A2550KLPTR-T | Relay Driver with 5 V Regulator for Automotive Applications |
| A2557KEB-T | PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION and SLEEP MODE |
| A2557EB-T | PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION and SLEEP MODE |
| A2557EEB-T | PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION and SLEEP MODE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A2550-1M0 | 制造商:Ohmite Mfg Co 功能描述: |
| A2550KLP-T | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Relay Driver with 5 V Regulator for Automotive Applications |
| A2550KLPTR-T | 功能描述:IC RELAY DRVR AUTO W/REG 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
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