TLE4287G

Output Type : Fixed
Polarity : Positive
Mounting Style : SMD/SMT
Output Voltage : 5 V
Maximum Operating Temperature : + 150 C
Load Regulation : 25 mV
Output Current : 0.25 A
Input Voltage MAX : 42 V
Package / Case : DSO
Line Regulation : 25 V


Features:

• Output voltage tolerance £ ± 2%
• Very low standby current consumption
• Input voltage up to 42 V
• Reset function down to 1 V output voltage
• ESD protection up to 2000 V
• Adjustable reset time
• On/Off logic
• Overtemperature protection
• Reverse polarity protection
• Short-circuit proof
• Very wide temperature range
• Very small output capacitor




Pinout






Specifications

40 °C < Tj < 150 °C
Parameter	Symbol	Limit Values		Unit	Remarks
Input I
Voltage	VI	0.5	42	V	-
Current	II		-	mA	internally limited
Output Q
Voltage	VQ	0.3	7	V	-
Current	IQ		-	-	internally limited
Reset Output R
Voltage	VR	0.3	7	V	-
Current	Ir	-	-	-	internally limited
Reset Delay
Voltage	Vd	-0.3	42	V	-
Current	Id	-	-	-	-
Enable
Voltage	VEN	-42	42	V	-
Current	IEN	-5	5	mA	t 400 ms
Hold
Voltage	VH	-2	7	V	-
Current	IH	-	-	-	internally limited

Description

The TLE4287G is a monolithic integrated 5-V voltage regulator in P-DSO-14-4 package. It supplies an output current I_Q > 250 mA. The I_C is short circuit proof and incorporates temperature protection that disables it at overtemperature.

The input voltage VI of TLE4287G is regulated in the range of 7.5 V < V_I < 40 V to V_Qrated = 5 V. Therefore a reference voltage, which is kept highly accurate by resistance adjustment, is compared via a control amplifier to a voltage that is proportional to the output voltage. The control amplifier drives the base of the series transistor by a buffer.

A comparator in the reset-generator block compares a reference voltage that is independent of the input voltage to the scaled-down output voltage. In the case of an output voltage V_Q < 4.5 V the reset delay capacitor is discharged and a reset signal is generated by setting the reset output LOW. The reset delay time of TLE4287G can be set by an external capacitor within a wide range. When the output voltage rises above V_Q 4.5 V the reset delay capacitor is charged again. As soon as the delay capacitor voltage reaches the upper switching threshold the reset output pin is set HIGH again.

Parameters:

Technical/Catalog Information	TLE4287G
Vendor	Infineon Technologies
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	DSO-14
Packaging	Tape & Reel (TR)
Regulator Topology	Positive Fixed
Current - Output	250mA
Voltage - Output	5V
Operating Temperature	-40°C ~ 165°C
Voltage - Input	7.5 ~ 42 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	TLE4287G TLE4287G