TLE4299GNTMA1

TLE4299GNTMA1 Datasheet

TLE 4299

Part	Datasheet
TLE4299GNTMA1	TLE4299GNTMA1 (pdf)

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TLE4299GMNTMA1	TLE4299GMNTMA1

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5-V Low Drop Fixed Voltage Regulator TLE 4299 • Output voltage 5 V ± 2% • 150 mA Output current • Extreme low current consumption typical 65 µA in ON state • Inhibit function Below 1 µA current consumption in off mode • Early warning • Reset output low down to VQ = 1 V P-DSO-8-3, -6, -7, -8, -9 Functional Description The TLE 4299 is a monolithic voltage regulator with fixed P-DSO-14-3, -8, -9, -11, 14 5-V output, supplying loads up to 150 mA. It is especially designed for applications that may not be powered down while the motor is off. It only needs a quiescent current of typical 65 µA. In addition the TLE 4299 GM includes an inhibit function. When the inhibit signal is removed, the device is switched off and the quiescent current is less than 1 µA. To achieve proper operation of the µ-controller, the device supplies a reset signal. The reset delay time is selected application-specific by an external delay capacitor. The reset threshold is adjustable. An early warning signal supervises the voltage at pin SI. The TLE 4299 is pin-compatible to the TLE 4269 and functional similar with the additional inhibit function. The TLE 4299 is designed to supply microcontroller systems even under automotive environment conditions. Therefore it is protected against overload, short circuit and overtemperature. Type TLE 4299 G TLE 4299 GM Data Sheet Ordering Code Q67006-A9417 Q67006-A9441 Package P-DSO-8-3 P-DSO-14-8 TLE 4299 Circuit Description The TLE 4299 is a PNP based very low drop linear voltage regular. It regulates the output voltage to VQ = 5 V for an input voltage range of V VI 45 V. The control circuit protects the device against potential caused by damages overcurrent and overtemperature. The internal control circuit achieves a 5 V output voltage with a tolerance of The device includes a power on reset and an under voltage reset function with adjustable reset delay time and adjustable reset switching threshold as well as a sense control/early warning function. The device includes an inhibit function to disable it when the ECU is not used for example while the motor is off. The reset logic compares the output voltage VQ to an internal threshold. If the output voltage drops below this level, the external reset delay capacitor CD is discharged. When VD is lower than VLD, the reset output RO is switched Low. If the output voltage drop is very short, the VLD level is not reached and no reset-signal is asserted. This feature avoids resets at short negative spikes at the output voltage e.g. caused by load changes. As soon as the output voltage is more positive than the reset threshold, the delay capacitor is charged with constant current. When the voltage reaches VUD the reset output RO is set High again. The reset threshold is either the internal defined VRT voltage typical V or can be lowered by a voltage level at the RADJ input down to V. The reset delay time and the reset reaction time are defined by the external capacitor CD. The reset function is active down to VI = 1 V. In addition to the normal reset function, the device gives an early warning. When the SI voltage drops below VSI,low, the devices asserts the SI output Low to indicate the logic and the µ-processor that this voltage has dropped. The sense function uses a hysteresis: When the SI-voltage reaches the VSI,high level, SO is set high again. This feature can be used as early warning function to notice the µ-controller about a battery voltage drop and a possible reset in a short time. Of cause also any other voltage can be observed by this feature. The user defines the threshold by the resistor-values RSI1 and RSI2. For the exact timing and calculation of the reset and sense timing and thresholds, please refer to the application section. Data Sheet TLE 4299 BandGapReference Current and Saturation Control SI RADJ Reference Reset Control Figure 1 Block Diagram TLE 4299 G SO RO AEB03103 Data Sheet TLE 4299 INH SI RADJ BandGapReference Inhibit Control

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5-V Low Drop Fixed Voltage Regulator

TLE 4299
• Output voltage 5 V ± 2%
• 150 mA Output current
• Extreme low current consumption typical 65 µA
in ON state
• Inhibit function Below 1 µA current consumption
in off mode
• Early warning
• Reset output low down to VQ = 1 V

P-DSO-8-3, -6, -7, -8, -9

Functional Description

The TLE 4299 is a monolithic voltage regulator with fixed

P-DSO-14-3, -8, -9, -11, 14
5-V output, supplying loads up to 150 mA. It is especially
designed for applications that may not be powered down
while the motor is off. It only needs a quiescent current of
typical 65 µA. In addition the TLE 4299 GM includes an inhibit function. When the inhibit
signal is removed, the device is switched off and the quiescent current is less than 1 µA.

To achieve proper operation of the µ-controller, the device supplies a reset signal. The
reset delay time is selected application-specific by an external delay capacitor. The reset
threshold is adjustable. An early warning signal supervises the voltage at pin SI. The

TLE 4299 is pin-compatible to the TLE 4269 and functional similar with the additional
inhibit function. The TLE 4299 is designed to supply microcontroller systems even under
automotive environment conditions. Therefore it is protected against overload, short
circuit and overtemperature.

Type TLE 4299 G TLE 4299 GM

Data Sheet
Ordering Code Q67006-A9417 Q67006-A9441

Package P-DSO-8-3 P-DSO-14-8

TLE 4299

Circuit Description

The TLE 4299 is a PNP based very low drop linear voltage regular. It regulates the
output voltage to VQ = 5 V for an input voltage range of V VI 45 V. The control
circuit protects the device against potential caused by damages overcurrent and overtemperature.

The internal control circuit achieves a 5 V output voltage with a tolerance of

The device includes a power on reset and an under voltage reset function with adjustable reset delay time and adjustable reset switching threshold as well as a sense control/early warning function. The device includes an inhibit function to disable it when the ECU is not used for example while the motor is off.

The reset logic compares the output voltage VQ to an internal threshold. If the output voltage drops below this level, the external reset delay capacitor CD is discharged. When VD is lower than VLD, the reset output RO is switched Low. If the output voltage drop is very short, the VLD level is not reached and no reset-signal is asserted. This feature
avoids resets at short negative spikes at the output voltage e.g. caused by load changes.

As soon as the output voltage is more positive than the reset threshold, the delay
capacitor is charged with constant current. When the voltage reaches VUD the reset
output RO is set High again.

The reset threshold is either the internal defined VRT voltage typical V or can be
lowered by a voltage level at the RADJ input down to V. The reset delay time and the
reset reaction time are defined by the external capacitor CD. The reset function is active down to VI = 1 V.

In addition to the normal reset function, the device gives an early warning. When the SI
voltage drops below VSI,low, the devices asserts the SI output Low to indicate the logic
and the µ-processor that this voltage has dropped. The sense function uses a hysteresis:

When the SI-voltage reaches the VSI,high level, SO is set high again. This feature can be
used as early warning function to notice the µ-controller about a battery voltage drop and a possible reset in a short time. Of cause also any other voltage can be observed by this feature.

The user defines the threshold by the resistor-values RSI1 and RSI2.

For the exact timing and calculation of the reset and sense timing and thresholds, please refer to the application section.

Data Sheet

TLE 4299

BandGapReference

Current and

Saturation Control

SI RADJ

Reference

Reset Control

Figure 1 Block Diagram TLE 4299 G

SO RO

AEB03103

Data Sheet

TLE 4299

INH SI

RADJ

BandGapReference

Inhibit Control

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Datasheet ID: TLE4299GNTMA1 638750