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ST-Microelectronics
STMicroelectronics
L497 HALL EFFECT PICKUP IGNITION CONTROLLER

DESCRIPTION
The L497is an integrated electronic ignition controller for breakerless ignition systems using Hall effect sensors.
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.

■ DIRECT DRIVING OF THE EXTERNAL POWER DARLINGTON
■ COIL CURRENT CHARGING ANGLE (dwell) CONTROL
■ PROGRAMMECOIL CURRENT PEAKLIMITATION
■ PROGRAMMABLE DWELL RECOVERY TIME WHEN 94 % NOMINAL CURRENT NOT REACHED
■ RPM OUTPUT
■ PERMANENT CONDUCTION PROTECTION
■ OVERVOLTAGE PROTECTION FOR EXTERNAL DARLINGTON
■ INTERNAL SUPPLY ZENER
■ REVERSE BATTERY PROTECTION


other parts : L497B  L497D1  
L497 PDF
Motorola
Motorola => Freescale
L4949 MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR

Μultifunction Very Low Dropout Voltage Regulator

The L4949 is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as power–on reset and input voltage sense.
It is designed for supplying the micro–computer controlled systems especially in automotive applications.

• Operating DC Supply Voltage Range 5.0 V to 28 V
• Transient Supply Voltage Up to 40 V
• Extremely Low Quiescent Current in Standby Mode
• High Precision Standby Output Voltage 5.0 V ±1%
• Output Current Capability Up to 100 mA
• Very Low Dropout Voltage Less Than 0.4 V
• Reset Circuit Sensing The Output Voltage
• Programmable Reset Pulse Delay With External Capacitor
• Voltage Sense Comparator
• Thermal Shutdown and Short Circuit Protections

 


other parts : L4949D  L4949N  
L4949 PDF
ST-Microelectronics
STMicroelectronics
L4918 VOLTAGE REGULATORS PLUS FILTER

DESCRIPTION
The L4918 combines both a filter and a voltage regulator in order to provide a high ripple rejection over a wider input voltage range. A supervisor low-pass loop of the element prevents the output transistor from saturation at low input voltages. The non linear behaviour of this control circuitry allows a fast setting of the filter.

.FIXED OUTPUT VOLTAGE 8.5V
.250mA OUTPUT CURRENT
.HIGH RIPPLE REJECTION
.HIGH LOAD REGULATION
.HIGH LINE REGULATION
.SHORT CIRCUIT PROTECTION
.THERMAL SHUT DOWN WITH HYSTERESIS
.DUMP PROTECTION

L4918 PDF
ST-Microelectronics
STMicroelectronics
L4943 MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

DESCRIPTION
The L4943 contains a triple voltage regulator and a high side driver. In stand-by the output is active as long as possible even when in thermal shutdown or under any other fault conditions. The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-by line to allow the µP to store data.

■ 3 PROGRAMMABLE OUTPUTS:
   ♦ 3 TO 11V (500mA);
   ♦ 3 TO 11V (500mA);
   ♦ 3 TO 7V (500mA) STANDBY
■ OUT1 AND OUT2 WITH INDEPENDENT ENABLE CONTROL FOR STAND-BY MODE
■ 0.4A HIGH SIDE DRIVER
■ LOAD DUMP PROTECTION
■ THERMAL SHUTDOWN

 

L4943 PDF
ST-Microelectronics
STMicroelectronics
L4960 2.5A POWER SWITCHING REGULATOR

DESCRIPTION
The L4960 is a monolithic power switching regulator delivering 2.5A at a voltage variable from 5V to 40V in step down configuration.
Features of the device include current limiting, soft start, thermal protection and 0 to 100% duty cycle for continuous operation mode.
TheL4960 is mountedina Heptawattplastic power package and requires very few external components.
Efficient operation at switching frequencies up to 150KHz allows a reduction in the size and cost of external filter components.

■ 2.5A OUTPUT CURRENT
■ 5.1V TO 40V OPUTPUT VOLTAGE RANGE
■ PRECISE (± 2%) ON-CHIP REFERENCE
■ HIGH SWITCHING FREQUENCY
■ VERY HIGH EFFICIENCY (UP TO 90%)
■ VERY FEW EXTERNAL COMPONENTS
■ SOFT START
■ INTERNAL LIMITING CURRENT
■ THERMAL SHUTDOWN

 


other parts : L4960H  
L4960 PDF
ST-Microelectronics
STMicroelectronics
L4921 VERY LOW DROP ADJUSTABLE REGULATORS

DESCRIPTION
The L4920 and L4921 are adjustable voltage regulator swith a very low voltage drop(0.4V typ.at 0.4A Tj = 25°C), low quiescent current and comprehensive on-chip protection.
These devices are protected against load dump and field decay transients, polarity reversal and over heating.
A foldback current limiter protects against load short circuits.
The output voltage is adjustable through an external divider from 1.25V to 20V. The minimum operating input voltage is 5.2V (TJ = 25°C).

. VERY LOW DROP VOLTAGE
. ADJUSTABLE OUTPUT VOLTAGE FROM 1.25V TO 20V
. 400mA OUTPUT CURRENT
. LOW QUIESCENT CURRENT
. REVERSE VOLTAGE PROTECTION
. + 60/ − 60V TRANSIENT PEAK VOLTAGE PROTECTION
. SHORT CIRCUIT PROTECTION WITH FOLD BACK CHARACTERISTICS
. THERMAL SHUT-DOWN

 


other parts : L4920  
L4921 PDF
ST-Microelectronics
STMicroelectronics
L4959 MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO

DESCRIPTION
The L4959 is a monolithic Multifunction Voltage Regulator, designed mainly for supplying Home Audio systems. The L4959 contains one unswitched linear 5.6V regulator for Micro, two switched regulators 8.6V and 12V, suitable to feed CD or CD players and LED, Signal Process. An additional 12V regulator for Solenoid Motor an CD_TRAY Driven is also available.

■ OUTPUTS:
   12V (1.3A); 12V (0.8A); 8.6V (0.6A); 5.6V (0.25A) STANDBY
■ OUT1 12V(a), OUT2 12V(b) AND OUT3 8.6V WITH INDEPENDENT ENABLE CONTROL FOR STAND-BY MODE
■ SHORT-CIRCUIT PROTECTION TO GROUND
■ THERMAL SHUTDOWN

L4959 PDF
ON-Semiconductor
ON Semiconductor
L4949 100 mA, 5.0 V, Low Dropout Voltage Regulator with Power−On Reset

The L4949 is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as power−on reset and input voltage sense.
It is designed for supplying the micro−computer controlled systems especially in automotive applications.

Features
• Operating DC Supply Voltage Range 5.0 V to 28 V
• Transient Supply Voltage Up to 40 V
• Extremely Low Quiescent Current in Standby Mode
• High Precision Standby Output Voltage 5.0 V ±1%
• Output Current Capability Up to 100 mA
• Very Low Dropout Voltage Less Than 0.4 V
• Reset Circuit Sensing The Output Voltage
• Programmable Reset Pulse Delay With External Capacitor
• Voltage Sense Comparator
• Thermal Shutdown and Short Circuit Protections
• NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
• Pb−Free Packages are Available

 


other parts : L4949D  L4949DG  L4949DR2  L4949DR2G  L4949N  L4949NG  NCV4949  NCV4949DG  NCV4949DR2  NCV4949DR2G  
L4949 PDF
ST-Microelectronics
STMicroelectronics
L497B HALL EFFECT PICKUP IGNITION CONTROLLER

DESCRIPTION
The L497is an integrated electronic ignition controller for breakerless ignition systems using Hall effect sensors.
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.

■ DIRECT DRIVING OF THE EXTERNAL POWER DARLINGTON
■ COIL CURRENT CHARGING ANGLE (dwell) CONTROL
■ PROGRAMMECOIL CURRENT PEAKLIMITATION
■ PROGRAMMABLE DWELL RECOVERY TIME WHEN 94 % NOMINAL CURRENT NOT REACHED
■ RPM OUTPUT
■ PERMANENT CONDUCTION PROTECTION
■ OVERVOLTAGE PROTECTION FOR EXTERNAL DARLINGTON
■ INTERNAL SUPPLY ZENER
■ REVERSE BATTERY PROTECTION


other parts : L497D1  L497  
L497B PDF
ST-Microelectronics
STMicroelectronics
L4962 POWER CONTROLLERS & MOTOR DRIVERS

POWER CONTROLLERS & MOTOR DRIVERS


other parts : ESM1600BFP_  ESM1600B_  ESM1602BFP_  ESM1602B_  L149_  L165_  L200_  L2720_  L2722_  L2724_  
L4962 PDF
ST-Microelectronics
STMicroelectronics
L4920 VERY LOW DROP ADJUSTABLE REGULATORS

DESCRIPTION
The L4920 and L4921 are adjustable voltage regulator swith a very low voltage drop(0.4V typ.at 0.4A Tj = 25°C), low quiescent current and comprehensive on-chip protection.
These devices are protected against load dump and field decay transients, polarity reversal and over heating.
A foldback current limiter protects against load short circuits.
The output voltage is adjustable through an external divider from 1.25V to 20V. The minimum operating input voltage is 5.2V (TJ = 25°C).

. VERY LOW DROP VOLTAGE
. ADJUSTABLE OUTPUT VOLTAGE FROM 1.25V TO 20V
. 400mA OUTPUT CURRENT
. LOW QUIESCENT CURRENT
. REVERSE VOLTAGE PROTECTION
. + 60/ − 60V TRANSIENT PEAK VOLTAGE PROTECTION
. SHORT CIRCUIT PROTECTION WITH FOLD BACK CHARACTERISTICS
. THERMAL SHUT-DOWN

 


other parts : L4921  
L4920 PDF
ST-Microelectronics
STMicroelectronics
L4963 1.5A SWITCHING REGULATOR

DESCRIPTION
The L4963 is a monolithic power switching regulator delivering 1.5A at 5.1V. The output voltage is adjust able from 5.1V to 36V, working in discontinuous variable frequency mode. Features of the device include remote inhibit, internal current limiting and thermal protection, reset and power fail outputs for microprocessor.

■ 1.5A OUTPUT LOAD CURRENT
■ 5.1 TO 36V OUTPUT VOLTAGE RANGE
■ DISCONTINUOUS VARIABLE FREQUENCY MODE
■ PRECISE (+/–2%) ON CHIP REFERENCE
■ VERY HIGH EFFICIENCY
■ VERY FEW EXTERNAL COMPONENTS
■ NO FREQ. COMPENSATION REQUIRED
■ RESET AND POWER FAIL OUTPUT FOR MICROPROCESSOR
■ INTERNAL CURRENT LIMITING
■ THERMAL SHUTDOWN

 


other parts : L4963D  L4963W  
L4963 PDF

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