TLE4473GV53NT

TLE4473GV53NT Datasheet

TLE 4473 GV53 TLE 4473 GV52

Part	Datasheet
TLE4473GV53NT	TLE4473GV53NT (pdf)

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Dual Low Drop Voltage Regulator TLE 4473 GV53 TLE 4473 GV52 • Output 1 300 mA, V ±3% or V ±3% • Output 2 180 mA, 5 V ±2% • Low quiescent current consumption • Disable function separately for both outputs • Wide operation range up to 42 V • Very low dropout voltage • 2 independent reset circuits • Watchdog • Output protected against short circuit • Wide temperature range -40 °C to 150 °C • Overtemperature protection • Overload protection Functional Description The TLE 4473 is a monolithic integrated voltage regulator with two very low-drop outputs, Q1 for loads up to 300 mA and Q2 providing a maximum of 180 mA. An input voltage in the range of V VI 45 V is transformed to VQ2 = V ±2% and VQ1 = V ±3% TLE 4473 GV53 or VQ1 = V ±3% TLE 4473 GV52 . The device is also available with dual 5 V output voltage, please refer to the TLE 4473 GV55 data sheet. Two inhibit pins allow a flexible power management. Both outputs can independently be enabled or disabled. Thus the current consumption of the application can be reduced to a minimum. The quiescent current of the TLE 4473 with both outputs disabled is < 1 µA. The TLE 4473 is designed to supply microprocessor systems and sensors under the severe conditions of automotive applications and is therefore equipped with additional protection functions against overload, short circuit and overtemperature. The device operates in the wide junction temperature range of -40 °C to 150 °C. Type TLE 4473 GV53 TLE 4473 GV52 Data Sheet Package PG-DSO-12 PG-DSO-12 TLE 4473 GV53 TLE 4473 GV52 The low drop regulator features a reset with adjustable power on delay for each of the outputs. In addition the output for the microcontroller supply comes up with a watchdog in order to supervise a microcontroller. VBat TLE 4473 GV53 / TLE 4473 GV52 Overtemperature Shutdown Bandgap Reference Current and Saturation Control, Overcurrent Protection Q2 4 10 µF Reset RO2 2 Generator e. g. µC I/O or Sensor Supply 9 INH2 µC ?1 Inhibit D2 10 100 nF Ignition 8 INH1 Inhibit Current and Saturation Control, Overcurrent Protection 6, 12 GND Reset RO1 3 Generator 22 µF or 10 µF µC Core Supply µC Reset Watchdog WI 1 Watchdog from µC D1 11 100 nF AEB03507.VSD Figure 1 Block Diagram with Typical External Components Data Sheet

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Dual Low Drop Voltage Regulator

TLE 4473 GV53 TLE 4473 GV52
• Output 1 300 mA, V ±3% or V ±3%
• Output 2 180 mA, 5 V ±2%
• Low quiescent current consumption
• Disable function separately for both outputs
• Wide operation range up to 42 V
• Very low dropout voltage
• 2 independent reset circuits
• Watchdog
• Output protected against short circuit
• Wide temperature range -40 °C to 150 °C
• Overtemperature protection
• Overload protection

Functional Description

The TLE 4473 is a monolithic integrated voltage regulator with two very low-drop outputs, Q1 for loads up to 300 mA and Q2 providing a maximum of 180 mA. An input
voltage in the range of V VI 45 V is transformed to VQ2 = V ±2% and VQ1 = V ±3% TLE 4473 GV53 or VQ1 = V ±3% TLE 4473 GV52 . The device is
also available with dual 5 V output voltage, please refer to the TLE 4473 GV55 data sheet. Two inhibit pins allow a flexible power management. Both outputs can independently be enabled or disabled. Thus the current consumption of the application can be reduced to a minimum. The quiescent current of the TLE 4473 with both outputs disabled is < 1 µA. The TLE 4473 is designed to supply microprocessor systems and sensors under the severe conditions of automotive applications and is therefore equipped with additional protection functions against overload, short circuit and overtemperature.

The device operates in the wide junction temperature range of -40 °C to 150 °C.

Type TLE 4473 GV53 TLE 4473 GV52

Data Sheet

Package PG-DSO-12 PG-DSO-12

TLE 4473 GV53 TLE 4473 GV52

The low drop regulator features a reset with adjustable power on delay for each of the outputs. In addition the output for the microcontroller supply comes up with a watchdog in order to supervise a microcontroller.

VBat

TLE 4473 GV53 / TLE 4473 GV52

Overtemperature Shutdown

Bandgap Reference

Current and Saturation

Control, Overcurrent Protection

Q2 4 10 µF

Reset RO2 2 Generator
e. g. µC I/O or Sensor Supply
9 INH2 µC
?1 Inhibit

D2 10 100 nF

Ignition
8 INH1

Inhibit

Current and Saturation

Control, Overcurrent Protection
6, 12 GND

Reset RO1 3 Generator
22 µF or 10 µF
µC Core Supply
µC Reset

Watchdog WI 1

Watchdog from µC

D1 11 100 nF

AEB03507.VSD

Figure 1 Block Diagram with Typical External Components

Data Sheet

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Datasheet ID: TLE4473GV53NT 638755