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參數資料
| 型號： | CA3228E |
| 廠商： | INTERSIL CORP |
| 元件分類： | 消費家電 |
| 英文描述： | Speed Control System with Memory |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 1/9頁 |
| 文件大?。?/td> | 113K |
| 代理商： | CA3228E |
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
Harris Corporation 1999
10-31
CA3228
Description
The CA3228 is a monolithic integrated circuit designed as an
automotive speed-control system.
The system monitors vehicle speed and compares it to a
stored reference speed. Any deviation in vehicle speed
causes a servo mechanism to open or close the engine
throttle as required to eliminate the speed error. The refer-
ence speed, set by the driver, is stored in a 9-bit counter.
The reference speed can be altered by the ACCEL and
COAST driver commands. The ACCEL command causes
the vehicle to accelerate at a controlled rate; the COAST
command disables the servo, thereby forcing the vehicle to
slowdown. Application of the brake disables the servo and
places the system in the standby mode while the RESUME
command returns the vehicle to the last stored speed.
Vehicle speed and driver commands are inputs to the
integrated circuit via external sensors. Actuators are needed
to convert the output signals into the mechanical action
necessary to control vehicle speed.
The CA3228 is supplied in a 24 lead dual-in-line plastic
package (E suffix). Refer to AN7326 for application
information.
Features
Low Power Dissipation
I
2
L Control Logic
Power-On Reset
On-Chip Oscillator for System Time Reference
Single Input Line for Operator Commands
Amplitude Encoded Control Signals
Transient Compensated Input Commands
Controlled Acceleration Mode
Internal Redundant Brake and Low-Speed Disable
Braking Disable
Applications
Automotive Speed Control
Residential
Controls
and
Industrial
Heating
and
Cooling
Industrial AC and DC Motor Speed Control
Applications Requiring Acceleration and Deceleration
Control
File Number
1436.3
June 1999
Pinout
CA3228 (PDIP)
TOP VIEW
1
2
3
4
5
6
7
8
9
10
11
12
GND
NC
DRIVER COMMAND
COMMAND DELAY
OSCILLATOR
V MEMORY
CURRENT SENSE SPEED
SENSOR INPUT
F/V OUT
F/V FILTER
V
S
BRAKE INPUT
16
17
18
19
20
21
22
23
24
15
14
13
GND
VACUUM CONTROL
VENT CONTROL
CONTROL AMP+
CONTROL AMP OUTPUT
ALIGN
ACCELERATE CAPACITOR
ACCELERATE RESISTOR
V
CC
OUTPUT GATE
CONTROL AMP-
V ERROR
Ordering Information
PART
NUMBER
TEMPERATURE
PACKAGE
CA3228E
-40
o
C to +85
o
C
24 Lead Plastic DIP
NO or email: centapp@harris.com
Call Central Applications 1-800-442-7747
相關PDF資料 |
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相關代理商/技術參數 |
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|---|---|
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