TLE4299GV33XUMA1

TLE4299GV33XUMA1 Datasheet

TLE 4299

Part	Datasheet
TLE4299GV33XUMA1	TLE4299GV33XUMA1 (pdf)

Related Parts	Information
TLE4299GV33NT	TLE4299GV33NT

PDF Datasheet Preview
Low-Drop Fixed Voltage Regulator TLE 4299 • Output voltage 3.3V ± 2% • 150 mA Output current • Extreme low current consumption 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 Functional Description The TLE 4299 is a monolithic voltage regulator with fixed P-DSO-14-3, -8, -9, -11 5-V see data sheet TLE4299G/GM or 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. In addition the TLE 4299GMV 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 over temperature. Type TLE 4299 GV33 TLE 4299 GMV33 Datasheet Package PG-DSO-8-16 PG-DSO-14-30 TLE 4299 Circuit Description The TLE 4299 is a PNP based very low drop linear voltage regulator. It regulates the output voltage to VQ = V for an input voltage range of V VI 45 V. The control circuit protects the device against potential damages caused by overcurrent and overtemperature. The internal control circuit achieves a 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 VST, the reset output RO is switched Low. If the output voltage drop is very short, the VST 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 VDT the reset output RO is set High again. 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

PDF Datasheet Preview

Low-Drop Fixed Voltage Regulator

TLE 4299
• Output voltage 3.3V ± 2%
• 150 mA Output current
• Extreme low current consumption 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

Functional Description

The TLE 4299 is a monolithic voltage regulator with fixed

P-DSO-14-3, -8, -9, -11
5-V see data sheet TLE4299G/GM or 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. In addition the TLE 4299GMV 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 over temperature.

Type TLE 4299 GV33 TLE 4299 GMV33

Datasheet

Package PG-DSO-8-16 PG-DSO-14-30

TLE 4299

Circuit Description

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

The internal control circuit achieves a 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 VST, the reset output RO is switched Low. If the output voltage drop is very short, the VST 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 VDT the reset
output RO is set High again.

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

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived TLE4299GV33XUMA1 Datasheet file may be downloaded here without warranties.

Datasheet ID: TLE4299GV33XUMA1 638751