TLE4299G

Number of Outputs : 1
Mounting Style : SMD/SMT
Output Voltage : 5 V
Output Type : Fixed
Maximum Operating Temperature : + 150 C
Output Current : 150 mA
Input Voltage MAX : 45 V
Load Regulation : 30 mV
Dropout Voltage (Max) : 0.5 V at 100 mA
Package / Case : PDSO-8


Features:

• Output voltage 5 V ±2%
• 150 mA Output current
• Extreme low current consumption typical 65 A in ON state
• Inhibit function: Below 1 A current consumptionin off mode
• Early warning
• Reset output low down to V_Q = 1 V
• Adjustable reset threshold
• Overtemperature protection
• Reverse polarity proof
• Wide temperature range


Pinout




Specifications

Parameter	Symbol	Limit Values		Unit	Notes
		Min.	Max.
Input I
Voltage	VI	-40	45	V
Inhibit INH
Input voltage	VINH	-40	45	V
Sense Input SI
Input voltage	VSI	-0.3	45	V
Input current	ISI	1	1	mA
Reset Threshold RADJ
Voltage	VRE	0.3	7	V
Current	IRE	-10	10	mA
Reset Delay D
Voltage	VD	0.3	7	V
Reset Output RO
Voltage	VR	0.3	7	V
Sense Output SO
Voltage	VSO	0.3	7	V
5-V Output Q
Output voltage	VQ	0.3	7	V
Output current	IQ	5		mA

Data Sheet Rev. 1.0


Description

The TLE4299G 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 A. In addition the TLE4299G GM includes an inhibit function. When the inhibit signal is removed, the device is switched off and the quiescent current is less than 1 A. To achieve proper operation of the -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 TLE4299G is pin-compatible to the TLE 4269 and functional similar with the additional inhibit function. The TLE4299G is designed to supply microcontroller systems even under automotive environment conditions. Therefore it is protected against overload, short circuit and over temperature.

The TLE4299G is a PNP based very low drop linear voltage regular. It regulates the output voltage to V_Q = 5 V for an input voltage range of 5.5 V V_I 45 V. The control circuit protects the device against potential caused by damages overcurrent and overtemperature.

The TLE4299G achieves a 5 V output voltage with a tolerance of ± 2%.

The TLE4299G 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 V_Q to an internal threshold. If the output voltage drops below this level, the external reset delay capacitor CD is discharged. When V_D is lower than V_LD, the reset output RO is switched Low. If the output voltage drop is very short, the V_LD 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 V_UD the reset output RO is set High again.

The reset threshold of TLE4299G is either the internal defined VRT 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 C_D. The reset function is active down to V_I = 1 V.

In addition to the normal reset function, the TLE4299G gives an early warning. When the SI voltage drops below V_SI,low, the devices asserts the SI output Low to indicate the logic and theprocessor that this voltage has dropped. The sense function uses a hysteresis:
When the SI-voltage reaches the V_SI,high level, SO is set high again. This feature of TLE4299G can be used as early warning function to notice the 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 R_SI1 and R_SI2. For the exact timing and calculation of the reset and sense timing and thresholds, please refer to the application section.

Parameters:

Technical/Catalog Information	TLE4299G
Vendor	Infineon Technologies
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	DSO-8
Packaging	Tape & Reel (TR)
Regulator Topology	Positive Fixed
Current - Output	150mA
Voltage - Output	5V
Operating Temperature	-40°C ~ 150°C
Voltage - Input	4.5 ~ 45 V
Number of Regulators	1
Current - Limit (Min)	250mA
Current Short Circuit (Isc)	-
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	TLE4299G TLE4299G