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Numéro de référence | TC4949 | ||
Description | Multifunction Very Low Dropout Voltage Regulator | ||
Fabricant | Telcom Semiconductor | ||
Logo | |||
1 Page
Multifunction Very Low Dropout Voltage Regulator
Multifunction Very Low Dropout Voltage Regulator
TTCC4499449
FEATURES
s Operating DC Supply Voltage Range 5.0V to 28V
s Transient Supply Voltage up to 40V
s Extremely Low Quiescent Current in
Standby Mode
s High Precision Standby Output Voltage 5.0V ±1%
s Output Current Capability up to 100mA
s Very Low Dropout Voltage less than 0.4V
s Reset Circuit Sensing the Output Voltage
s Programmable Reset Pulse Delay with
External Capacitor
s Voltage Sense Comparator
s Thermal Shutdown and Short Circuit Protections
GENERAL DESCRIPTION
The TC4949 is a monolithic integrated 5.0V 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 sys-
tems especially in automotive applications.
ORDERING INFORMATION
Part
Number
Package
TC4949VPA
TC4949VOA
8-Pin PDIP (Narrow)
8-Pin SOIC (Narrow)
Temperature
Range
–40 to +125°C
–40 to +125°C
REPRESENTATIVE BLOCK DIAGRAM
PIN CONFIGURATIONS
Supply
Voltage (VCC)
1
Output
Voltage (VOUT)
VZ 3
8 CT 4
Preregulator
6.0V
2.0µA
Sense
Input
(SIN)
2
Regulator
VS
1.23VREF
+
–
Reset
+
–
+
- 2.0V
+
–
+
- 1.23V
Sense
Reset
6
Sense
Output
(SOUT)
7
8-Pin PDIP
VCC 1
SIN 2
VZ 3
CT 4
TC4949
8-Pin SOIC
VCC 1
5 Gnd
SIN 2
VZ 3
TC4949
CT 4
www.datasheet4u.comTC4949-1 1/6/00
TelCom Semiconductor reserves the right to make ch1anges in the circuitry and specifications of its devices.
8 VOUT
7 SOUT
6 RESET
5 GND
8 VOUT
7 SOUT
6 RESET
5 GND
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Pages | Pages 9 | ||
Télécharger | [ TC4949 ] |
No | Description détaillée | Fabricant |
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