INFINEON TLE4299 DATA SHEET

5-V Low-Drop Fixed Voltage Regulator TLE 4299

Data Sheet

Features

• Output voltage 5 V

± 2%

• 150 mA Output current

• Extreme low current consumption typical 65 in ON state

• Inhibit function: Below 1

mA current consumption

in off mode

• Early warning

• Reset output low down to

= 1 V

• Adjustable reset threshold

• Overtemperature protection

• Reverse polarity proof

• Wide temperature range

Type Ordering Code Package



TLE 4299 G Q67006-A9417 P-DSO-8-3 (SMD)



TLE 4299 GM Q67006-A9441 P-DSO-14-8 (SMD)



New type

P-DSO-8-3

P-DSO-14-3, -8, -9, -11

Functional Description

The TLE 4299 is a monolithic voltage regulator with fixed 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

mA. 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 of the

m-controller, the device supplies a reset signal. The reset delay t ime is selected

mA. To achieve proper operation

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.

Data Sheet Rev. 1.0 1 2002-01-17

TLE 4299

Circuit Description

The TLE 4299 is a PNP based very low drop linear voltage regular. It regulates the output voltage to circuit protects the device against potential caused by damages overcurrent and overtemperature.

= 5 V for an input voltag e range of 5.5 V £ V

£ 45 V. The control

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

± 2%.

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 functi on to disable it whe n the ECU is not used for example while the motor is off.

The reset logic compares the output voltage voltage drops below this level, the external reset delay capacitor

is lower than VLD, the reset output RO is switched Low. If the o utput voltage drop is

very short, the

level is not reached and no reset-signal is asserted. This feature

to an internal thresho ld. If the output

is discharged. When

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

the reset

output RO is set High again.

The reset threshold is ei ther the internal defined

voltage (typical 4.6 V) or can be

lowered by a voltage level at the RADJ input down to 3.5 V. The reset delay time and the

reset reaction time are defined by the external capacitor down to

= 1 V.

. The reset function is active

In addition to the normal reset function, the device gives an early warning. When th e SI voltage drops below and the

m-processor that this voltage has dropped. The sense function uses a hysteresis:

When the SI-voltage reaches the used as early warning function to notice the

, the devices asserts the SI output Low to indicate the logic

SI,low

level, SO is set high again. This feature can be

SI,high

m-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

and R

SI1

SI2

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

Data Sheet Rev. 1.0 2 2002-01-17

TLE 4299

RADJ

Band-

Gap-

Reference

Current

and

Saturation

Control

Reference

Reset

Control

Figure 1 Block Diagram TLE 4299 G

GND

AEB03103

Data Sheet Rev. 1.0 3 2002-01-17

TLE 4299

INH

RADJ

Band-

Gap-

Reference

Current

and

Saturation

Control

Inhibit

Control

Reference

Reset

Control

Figure 2 Block Diagram TLE 4299 GM

GND

AEB03104

Data Sheet Rev. 1.0 4 2002-01-17

TLE 4299

P-DSO-8-3

SI 2 7

RADJ 3 6

D4 5

Q SO RO GND

AEP02832

Figure 3 Pin Configuration (top view)

Pin Definitions and Functions (TLE 4299 G) Pin No. Symbol Function

1I Input; block directly to GND on the IC with a ceramic capacitor. 2SISense Input; if not needed connect to Q. 3RADJReset Threshold; if not needed connect to GND. 4DReset Delay; to select delay time, connect to GND via external

capacitor. 5GNDGround 6ROReset Output; the open-collector output is internally linked to Q

via a 20 kW pull-up resistor. Keep open, if the pin is not needed. 7SOSense Output; the open-collector output is internally linked to

the output via a 20 k

W pull-up resistor. Keep open, if the pin is not

needed. 8Q5-V Output; connect to GND with a 22

mF capacitor, ESR < 5 W.

Data Sheet Rev. 1.0 5 2002-01-17

TLE 4299

P-DSO-14-8

141RADJ SI

D2 13 GND 3 12 GND 4 11 GND 5

INH

RO 7 8

GND GND GND Q SO

AEP02831

Figure 4 Pin Configuration (top view)

Pin Definitions and Functions (TLE 4299 GM) Pin No. Symbol Function

1RADJReset Threshold; if not needed connect to GND. 2DReset Delay; connect to GND via external delay capacitor for

setting delay time. 3, 4, 5 GND Ground 6INH

Inhibit; If not needed connect to input pin I; a high signal switches

the regulator ON. 7ROReset Output; open-collector output, internally connected to Q

via a pull-up resistor of 20 k

W. Keep open, if the pin is not needed.

8SOSense Output; open-collector output, internally connected to Q

via a 20 k 9Q5-V Output; connect to GND with a 22

W pull-up resistor. Keep open, if the pin is not needed.

mF capacitor, ESR < 5 W.

10, 11, 12 GND Ground 13 I Input; block to GND directly at the IC by a ceramic capacitor. 14 SI Sense Input; if not needed connect to Q.

Data Sheet Rev. 1.0 6 2002-01-17

Absolute Maximum Ratings

= – 40 to 150 °C

Parameter Symbol Limit Values Unit Notes

min. max.

Input I

TLE 4299

Input voltage

Inhibit Input INH

Input voltage V

Sense Input SI

Input voltage Input current

V I

Reset Threshold RADJ

Voltage Current

V I

Reset Delay D

INH

– 40 45 V –

– 0.3 45 V – 11mA–

– 0.3 7 V – – 10 10 mA –

Voltage

– 0.3 7 V –

Reset Output RO

Voltage

– 0.3 7 V –

Sense Output SO

Voltage

– 0.3 7 V –

5-V Output Q

Output voltage Output current

Data Sheet Rev. 1.0 7 2002-01-17

V I

– 0.3 7 V – – 5

–

mA –

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