Integrated circuits, Transistor, Semiconductors Free Datasheet Search and Download Site

L494

  

Datasheet

Match, Like L4940 L4941 L4943 L4945 L4946 L4947 L4948 L4949
Start with L4940* L4941* L4943* L4945* L4946* L4947* L4948* L4949*
End *BL494 *GL494 *IL494 *SL494 *TL494
Included *L494* *L494-*
View Details    
L4943 [MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO ] ST-Microelectronics
STMicroelectronics

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

 

View
L4949 [MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR ]

other parts : L4949D  L4949N 

Motorola
Motorola => Freescale

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

 

View
L4949 [100 mA, 5.0 V, Low Dropout Voltage Regulator with Power−On Reset ]

other parts : L4949D  L4949DG  L4949DR2  L4949DR2G  L4949N  L4949NG  NCV4949 

ON-Semiconductor
ON Semiconductor

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

 

View
L4941 [VERY LOW DROP 1A REGULATOR ]

other parts : L4941BD2T  L4941BDT  L4941BDT-TR  L4941BDTTR  L4941BP  L4941BV  L4941BX 

ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4941 is a three terminal 5V positive regulators available in TO-220, TO-220FP and D2PAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery powered equipments, reducing consumption and prolonging battery life. It employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection.

■ LOW DROPOUT VOLTAGE (450mV Typ. at 1A)
■ VERY LOW QUIESCENT CURRENT
■ THERMAL SHUTDOWN
■ SHORT CIRCUIT PROTECTION
■ REVERSE POLARITY PROTECTION

 

View
L4947 [5V-0.5A VERY LOW DROP REGULATOR WITH RESET ]

other parts : L4947R 

ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4947/L4947R is a monolithic integrated circuit in Pentawatt package specially designed to provide a stabilized supply voltage for automotive and industrial electronic systems. Thanks to its very low voltage drop, in automotive applications the L4947/L4947R can work correctly even during the cranking phase, when the battery voltage could fall as low as 6V. Furthermore, it incorporates a complete range of protection circuits against the dangerous overvoltages always present on the battery rail of the car. The reset function makes the device particularly suited to supply microprocessor based systems : a signal is available (after an externally programmable delay) to reset the microprocessor at power-on phase ; at power-off, this signal becomes low inhibiting the microprocessor.

■ PRECISE OUTPUT VOLTAGE (5V ± 4%) OVER FULL TEMPERATURE RANGE (– 40 / 125 °C)
■ VERY LOW VOLTAGE DROP (0.75Vmax) OVER FULL T RANGE
■ OUTPUT CURRENT UP TO 500mA
■ RESET FUNCTION
■ POWER-ON RESET DELAY PULSE DEFINED BY THE EXTERNAL CAPACITOR
■ + 80V LOAD DUMP PROTECTION
■ – 80V LOAD DUMP PROTECTION
■ REVERSE VOLTAGE PROTECTION
■ SHORT CIRCUIT PROTECTION AND THER MAL SHUT-DOWN (with hysteresis)
■ LOW START UP CURRENT

 

View
L4946 [QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET ] ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4946 is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (VO1), a 8V at 250mA (VO2), a 5V at 200mA (VO3) and a low drop 5V st-by line at 100mA (VO4).
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occurring. VO1,2,3 are off during st-by mode.
The STCAP pin allows the battery voltage to decay slowly giving the µP time to store data. This IC is designed for supplying microcomputer controlled systems specially in automotive applications.

■ 4 OUTPUTS: 10V (125mA); 8V (250mA); 5V (200mA); 5V (100mA)
■ 10V AND 5V (100mA) OUTPUT ARE LOW DROP
■ 5V (100mA) ST-BY OUTPUT VOLTAGE
■ EARLY WARNING OUTPUT FOR SUPPLY UNDERVOLTAGE (LVW)
■ THERMAL SHUTDOWN AND CURRENT LIMITATION (FOLDBACK)
■ REVERSE BATTERY AND LOAD DUMP PROTECTION
■ INHIBIT (ON/OFF) AND RESET FUNCTIONS

 

View
L4940 [VERY LOW DROP 1.5 A REGULATORS ]

other parts : L4940V10  L4940V12 

ST-Microelectronics
STMicroelectronics

Description
The L4940 series of three terminal positive regulators is available in TO-220, TO-220FP and D
2PAK packages and with several fixed output voltages, making it useful in a wide range of
industrial and consumer applications. Thanks to its very low input/output voltage drop, these
devices are particularly suitable for batteries powered equipment, reducing consumption andprolonging battery life. Each type employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection.

■ Precise 5, 8.5, 10, 12 V outputs
■ Low dropout voltage (450 mV typ. at 1 A)
■ Very low quiescent current
■ Thermal shutdown
■ Short circuit protection
■ Reverse polarity protection

View
L4945 [5V VERY LOW DROP VOLTAGE REGULATOR ] ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4945 is a monolithic integrated circuit in Versawatt package specially designed to provide a stabilized supply voltage for automotive and in dustrial electronic systems. Thanks to their very low voltage drop, in automotive applications the devices can work correctly even during the cranking phase, when the battery voltage could fall as low as 6V. Furthermore, they incorporate a complete range of protection circuits against the dangerous overvoltages always present on the battery rail of the car.

■ 5V ± 4% PRECISE OUTPUT VOLTAGE OVER FULL TEMPERATURE RANGE (– 40 / 125 °C)
■ VERY LOW VOLTAGE DROP (0.75Vmax) OVER FULL TEMPERATURE RANGE
■ OUTPUT CURRENT UP TO 500mA
■ OVERVOLTAGE AND REVERSE VOLTAGE PROTECTIONS
■ REVERSE VOLTAGE PROTECTION
■ SHORT CIRCUIT PROTECTION AND THERMAL SHUT-DOWN (with hysteresis)
■ LOW START UP CURRENT

 

View
L4949 [MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR ]

other parts : L4949E  L4949ED  L4949EP 

ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4949E is a monolithic integrated 5V voltage regulator with a very low dropout output and additional functions as power-on reset and input voltage sense. It is designed for supplying the microcomputer controlled systems especially in automotive applications.

■ OPERATING DC SUPPLY VOLTAGE RANGE 5V - 28V
■ TRANSIENT SUPPLY VOLTAGE UP TO 40V
■ EXTREMELY LOW QUIESCENT CURRENT IN STANDBY MODE
■ HIGH PRECISION STANDBY OUTPUT VOLTAGE 5V±1%
■ OUTPUT CURRENT CAPABILITY UP TO 100mA
■ VERY LOW DROPOUT VOLTAGE LESS THAN 0.5V
■ RESET CIRCUIT SENSING THE OUTPUT VOLTAGE
■ PROGRAMMABLE RESET PULSE DELAY WITH EXTERNAL CAPACITOR
■ VOLTAGE SENSE COMPARATOR
■ THERMAL SHUTDOWN AND SHORT CIRCUIT PROTECTIONS

 

View
L4946B [QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET ]

other parts : L4948 

ST-Microelectronics
STMicroelectronics

DESCRIPTION
The L4946B is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (VO1), a 8.5V at 250mA (VO2), a 5V at 200mA (VO3) and a low drop 5V st-by line at 100mA (VO4).
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occurring. VO1,2,3 are off during st-by mode.
The STCAP pin allows the battery voltage to decay slowly giving the µP time to store data. This IC is designed for supplying microcomputer controlled systems specially in automotive applications.

■ 4 OUTPUTS: 10V (125mA); 8.5V (250mA); 5V (200mA); 5V (100mA)
■ 10V AND 5V (100mA) OUTPUT ARE LOW DROP
■ 5V (100mA) ST-BY OUTPUT VOLTAGE
■ EARLY WARNING OUTPUT FOR SUPPLY UNDERVOLTAGE (LVW)
■ THERMAL SHUTDOWN AND CURRENT LIMITATION (FOLDBACK)
■ REVERSE BATTERY AND LOAD DUMP PROTECTION
■ INHIBIT (ON/OFF) AND RESET FUNCTIONS

 

View
1 2
Share Link : L494

New and Popular Datasheet

LM317  PN2222A  1N4007  LM324N  AP1510  B0540W-7  2N7002KDW  TP802C04  2N7002K  2N7002S  AH286_07  ZXLD1360Q  EM78566H  ZXT14P12DX  MMBT2907AT  2N7000  2N7002  BAS521  74AHCT125  74HCT08  1SS119  2N7002DWA  1N5711WS-7  ZLLS1000  TSX-4025  M4A  EPVP6200  BSS8402DW  BAV99BRW  555  2N7002MTF  2N7002DW  2N7002A  2N7002K-T1  2N7002K-TP  ZXM61P02FTC  TP802C04R  SCI7660  PR1507  MMDT3906VC  MMBT2907AT-7  MMBT2222A-7  MBR4045  IR333-H0-L10  IR333-H0  HD74HCT688P  ES1A_  EM78P156EL  DMN4800LSSL  CLC1006  BSS8402DW-7  BSS138DW-7  BAV99W-7  BAV70_  TDA2030A 

HOME




Language : 한국어     日本語     русский     简体中文     español
@ 2015 - 2018  [ Home ][ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]