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参数资料
| 型号： | L497B |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 封装： | DIP-16 |
| 文件页数： | 1/11页 |
| 文件大小： | 474K |
| 代理商： | L497B |
L497
July 2003
HALL EFFECT PICKUP IGNITION CONTROLLER
.
DIRECT
DRIVING
OF
THE
EXTERNAL
POWER DARLINGTON
.
COIL CURRENT CHARGING ANGLE (dwell)
CONTROL
.
PROGRAMME COIL CURRENT PEAK LIMITA-
TION
.
PROGRAMMABLE DWELL RECOVERY TIME
WHEN 94 % NOMINAL CURRENT NOT
REACHED
.
RPM OUTPUT
.
PERMANENT CONDUCTION PROTECTION
.
OVERVOLTAGE PROTECTION FOR EXTER-
NAL DARLINGTON
.
INTERNAL SUPPLY ZENER
.
REVERSE BATTERY PROTECTION
DESCRIPTION
The L497 is an integrated electronic ignition control-
ler for breakerless ignition systems using Hall effect
sensors.
ORDERING NUMBERS : L497B (DIP16)
L497D1 (SO16)
DIP16
SO16
The device drives an NPN external darlington to
control the coil current providing the required stored
energy with low dissipation.
A special feature of the L497 is the programmable
time for the recovery of the correct dwell ratio Td/T
when the coil peak current fails to reach 94 % of the
nominal value. In this way only one spark may have
an energy less than 94 % of the nominal one during
fast acceleration or cold starts.
BLOCK DIAGRAM
1/11
Obsolete
Product(s)
- Obsolete
Product(s)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L497D1 | 功能描述:马达/运动/点火控制器和驱动器 Hall Effect Control RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L4981 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:L4981 功率因数校正集成电路 |
| L4981A | 功能描述:功率因数校正 IC Very High Power RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L4981A | 制造商:STMicroelectronics 功能描述:POWER FACTOR CORRECTOR 4981 DIP20 |
| L4981A_01 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:POWER FACTOR CORRECTOR |
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