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參數(shù)資料
| 型號(hào)： | KA3903 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Power Window Motor Control IC |
| 中文描述： | BRUSH DC MOTOR CONTROLLER, 0.4 A, PDIP16 |
| 封裝： | 0.300 INCH, DIP-16 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 286K |
| 代理商： | KA3903 |
FAN8903(KA3903)
5
Application Information
General
When the start-key is turned on by operator, the FAN8903 will wait the command up or down of the window.
Upon the command up, the power stage composed of relays will be activated by basic function circuit which consists of input,
logic, timing and output circuit.
So the motor starts to rotate in the right direction to lift the window, while rotate in the counter direction with the command
down to down the window.
The OCP (over current protector) is made up to protect the motor in an abnormal condition of the system during the rotation of
motor according to the command up or down.
The OCP time technique is used to detect over current not sensitive to a start peak current or a current slightly lager than the
reference current.
The FAN8903 is based on the safety by consisting of the human body protection circuit with a simple switch attached to the
window frame for cost-effective method but hard to the european specification. It also is possible to use photo sensor to meet
the specification.
Moreover the FAN8903 has the car-key turn-off function and the mode selection function.
BAT.
FAN8903
UP
DOWN
START KEY
PRETECTION FUNCTIONS
SPECIAL FUNCTIONS
INPUT
LOGIC
TIMING
OUTPUT
POWER
STAGE
WINDOW
FRAME
S/W
OCP
OVP
HUMAN BODY
UVLO & REFERENCE
KEY-OFF
MODE SELECTION
BASIC FUNCTIONS
M
POWER WINDOW SYSTEM
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