參數(shù)資料
型號(hào): AS8410
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 運(yùn)動(dòng)控制電子
英文描述: PWM DC Motor Regulator
中文描述: BRUSH DC MOTOR CONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 2/19頁
文件大?。?/td> 601K
代理商: AS8410
PWM DC Motor Regulator – Data Sheet
AS8410
Rev. 1.0, December 2000
page
2
of
19
1 Key Features
The AS8410 builds up a complete PWM DC Motor current regulation loop with an external
n-channel power FET. A full diagnosis of motor failures with stand-alone failure handling
procedures is integrated.
One of the most important features of this ASSP namely in automotive applications is the
slew rate regulated switching of the external power FET. This technology enables two
features of the DC motor regulator, which was up to now impossible to realise at the same
time:
An excellent EMC behaviour (very low RF emission in the whole frequency
range)
A high power efficiency > 95 % (fall / rise time < 150 ns)
A short overview of the main features of the AS8410 is given here below:
Main properties:
Complete PWM DC motor regulator with an external power FET
Single voltage supply in the range VB = 6 V … 35 V (Vpump
max
= 45 V)
Analogue motor current regulation loop (two modes: set value as digital duty ratio of a
low frequency (e.g. 10 Hz) or as an analogue voltage in the range V
in
= 0 … 5 V)
High power efficiency of the whole regulator module (> 95 %)
Low RF emission in the whole frequency range
Fully protected, analogue / digital failure handling procedures (see below: Security
functions)
different operating modes (set value input, over temperature-handling procedure)
Applicable directly on the automotive board supply battery (burst and surge)
Simple programming possibilities for different classes of DC motors and
Automatic sleep mode controlled by the set value
Security functions:
1. Extensive diagnosis of the DC motor and the power FET,
failures handling procedures and report of the failures:
1.1 Over current detection and protection
1.2 No load detection of the motor
1.3 Open wire detection (motor or power switch)
1.4 Short circuit of the power switch detection
1.5 Blocked motor detection and protection
1.6 Short-circuited motor segments detection and protection
1.7 Protection of the power FET and the ASIC, if the motor works in generator
mode
2. Over- / Under Voltage detection and protection
3. Over Temperature detection and protection in two modes
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