TLE4287G

5-V Voltage Regulator TLE 4287 G Features • • • • • • • • • • • • • Output voltage tolerance ≤ ±2% Very low standby current consumption Input voltage up to 42 V Reset function down to 1 V output voltage Adjustable reset time On/Off logic Overtemperature protection Reverse polarity protection Short-circuit proof Very wide temperature range Very small output capacitor Green Product (RoHS compliant) AEC Qualified Functional Description The TLE 4287 G is a monolithic integrated 5 V voltage regulator in PG-DSO-14 package. It supplies an output current IQ > 250 mA. The IC is short circuit proof and incorporates temperature protection which turns off the device at overtemperature. The input voltage VI is regulated in the range of 7.5 V < VI < 40 V to VQ,nom = 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 VQ < 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 can be set by choosing the external capacitor over a wide range. When the output voltage rises above VQ ≥ 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. Type TLE 4287 G Data Sheet 1 Package PG-DSO-14 Rev. 1.4, 2009-01-12 TLE 4287 G The device has two logic inputs, EN and H. It is turned ON by a voltage > 4 V at EN, for example by the ignition and remains active in case H is set LOW, even if the voltage at EN goes LOW. This makes it possible to implement a self-holding circuit without external components. When the device is turned OFF, the output voltage drops to 0 V and current consumption tends towards 0 µA (see Table 1). Design Notes for External Components The input capacitor CI is necessary for compensation line influences. The resonant circuit consisting of lead inductance and input capacitance can be damped by a resistor of approx. 1 Ω in series with CI. The output capacitor is necessary for the stability of the regulating circuit. Stability is guaranteed for CQ ≥ 100 nF within the operating temperature range. Table 1 Enable EN L H H X L L State Table for Turn-On/Turn-Off Logic Hold H X X L L L H VQ 0V 5V 5V 5V 5V 0V Remarks Initial state Regulator switched on via pin 6, by ignition for example Pin 9 clamped active to GND by controller while pin 6 is still HIGH Previous state remains, even ignition is shut off: self-holding state Ignition shut off while regulator is in self-holding state Regulator shut down by releasing of pin 9 while pin 6 remains LOW, final state. No active clamping required by external self-holding circuit (µC) to keep regulator shut off Data Sheet 2 Rev. 1.4, 2009-01-12 TLE 4287 G I N.C. GND GND GND EN RO 1 2 3 4 5 6 7 14 13 12 11 10 9 8 AEP02240 GND Q GND GND GND H D Figure 1 Table 2 Pin No. 1 2 3, 4, 5, 10, 11, 12, 14 6 I Pin Configuration (top view) Pin Definitions and Functions Symbol Function Input; block to ground directly at the IC by a ceramic capacitor Not connected Ground Enable; active high, device is turned ON by HIGH signal at this pin, internally connected to GND via pull-down resistor of 100 kΩ Reset Output; open-collector output, internally connected to Q via a pull-up resistor of 30 kΩ Reset Delay; connect to GND via external delay capacitor for setting delay time Hold and release; active low, see Table 1 for function, connected to Q via a pull-up resistor of 50 kΩ Output; block to GND with a capacitor CQ ≥ 100 nF N.C. GND EN 7 8 9 13 RO D H Q Data Sheet 3 Rev. 1.4, 2009-01-12 TLE 4287 G Temperature Sensor Saturation Control and Protection Circuit 13 5V Output Input 1 Control Amplifier Adjustment Bandgap Reference Buffer Reset Generator 7 Reset Output 8 Reset Delay Turn-ON / Turn-OFF Logic 6 Enable 9 Hold 3,4,5,10,11,12,14 GND AEB02241 Figure 2 Block Diagram Data Sheet 4 Rev. 1.4, 2009-01-12 TLE 4287 G Table 3 Parameter Input I Voltage Current Output Q Voltage Current Absolute Maximum Ratings Symbol Limit Values Min. Max. 42 – 7 – 7 – 42 – 42 5 7 – – 150 150 1.5 V mA V – V – V – V mA V – A °C °C kV – internally limited – internally limited – internally limited – – – Unit Remarks VI II VQ IQ VR IR VD ID VEN IEN VH IH IGND Tj Tstg -0.5 – -0.3 – -0.3 – -0.3 – -42 -5 -2 – -0.5 -40 -50 -1.5 Reset Output RO Voltage Current Reset Delay D Voltage Current Enable EN Voltage Current Hold H Voltage Current Ground GND Current Temperatures Junction temperature Storage temperature ESD Susceptibility ESD Resistivity to GND – – HBM1) – – internally limited t ≤ 400 ms VESD 1) ESD susceptibility, Human Body Model HBM according to EIA/JESD 22-A114B Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Data Sheet 5 Rev. 1.4, 2009-01-12 TLE 4287 G Table 4 Parameter Input voltage Operating Range Symbol Limit Values Min. Max. 42 165 32 112 V °C K/W K/W – – measured to pin 4 1) Unit Remarks Junction temperature Thermal Resistances Junction pin Junction ambient VI Tj Rthj-pin Rthj-a 7.5 -40 – – 1) Package mounted on PCB 80 × 80 × 1.5 mm3; 35µ Cu; 5µ Sn; Footprint only; zero airflow. Data Sheet 6 Rev. 1.4, 2009-01-12 TLE 4287 G Table 5 Electrical Characteristics 7.5 V ≤ VI ≤ 40 V; -40 °C < Tj < 150 °C; VEN > 4 V (unless otherwise specified) Parameter Output voltage Output voltage Output current limitation Drop voltage Current consumption Iq = II - IQ Symbol Limit Values Min. Typ. 5.0 5.0 – 1.8 1.0 Max. 5.10 5.10 – 2.5 10 V V mA V µA 5 mA < IQ < 200 mA 7.5 V < VI < 22 V 5 mA < IQ < 80 mA 7.5 V < VI < 36 V 4.90 4.90 250 – – Unit Test Condition VQ VQ IQ VDR Iq VI < 22 V IQ = 200 mA1) Regulator OFF: Tj < 125 °C, VEN = 0 V, H = open 7.5 V ≤ VI ≤ 16.5V 5 mA < IQ < 200 mA, VI = 16 V 5 mA < IQ < 200 mA 7.5 V < VI < 22 V IQ = 20 mA Current consumption Iq = II - IQ Load regulation Line regulation Power Supply Ripple Rejection Temperature output voltage drift Output capacitance Reset Generator Reset switching threshold Iq ∆VQ,lo ∆VQ,li – -25 -25 – – 100 4.50 – 4.5 20 10 2.2 0.1 – 2.3 – – 55 0.5 – 4.65 0.1 – 30 15 3 0.43 50 7 5 +25 +25 – – – 4.80 0.4 5.05 40 38 3.6 0.8 – mA mV V dB PSRR ∆VQ/∆T fr = 100 Hz; Vr = 0.5 Vpp mV/K – nF V V V kΩ µA V V mV – – CQ VQ,rt Reset output low voltage VRL Reset output high voltage VRH Reset pull-up resistor Reset charging current Upper timing threshold Lower timing threshold Delay saturation voltage Data Sheet Rext = 4.7 kΩ to VQ2) Rext = ∞ internally connected to Q RR ID,c VDU VDL VD,sat VD = 1.5 V – – VQ < VQ,rt Rev. 1.4, 2009-01-12 TLE 4287 G Table 5 Electrical Characteristics (cont’d) 7.5 V ≤ VI ≤ 40 V; -40 °C < Tj < 150 °C; VEN > 4 V (unless otherwise specified) Parameter Reset delay time Reset reaction time Enable EN, Hold H Enable turn-ON voltage Symbol Limit Values Min. Typ. 20 2.0 3.0 2.5 100 0.4 35 35 70 50 Max. 30 4.0 4.0 3.5 200 0.8 100 50 80 100 ms µs V V kΩ V µA % % kΩ 7.5 0.5 2.3 2.0 50 0.2 – 30 60 20 Unit Test Condition trd trr CD = 100 nF CD = 100 nF IC turned-ON IC turned-OFF internally connected to GND – VEN Enable turn-OFF voltage VEN Enable pull-down resistor REN Enable hysteresis Enable input current Hold keep on voltage Hold release voltage Hold pull-up resistor ∆VEN IEN VH VH RH VEN = 4 V referred to VQ; VQ > 4.5 V referred to VQ; VQ > 4.5 V internally connected to Q 1) Measured when the output voltage VQ has dropped 100 mV from the nominal value. 2) The reset output is LOW between VQ = 1 V and Vrt. Input Enable e.g. from Terminal 15 Reset to µC 1I Q 13 CI 100 nF 6 7 EN RO TLE 4287 D 8 5V Output CQ 100 nF GND 3, 4, 5, 10, 11, 12, 14 H 9 CD 100 nF AES02243 Hold from µC Figure 3 Data Sheet Application Circuit 8 Rev. 1.4, 2009-01-12 TLE 4287 G VI VEN VEN, ON VEN, OFF VQ VQ, rt < trr VD VDU VDL VRO trr VD, sat trd VRL Power-ON Thermal Reset Shutdown Voltage Drop Undervoltage Secondary Load at Input at Output Spike Bounce Shutdown AES03087_4287 Figure 4 Time Response Data Sheet 9 Rev. 1.4, 2009-01-12 TLE 4287 G VI VEN VEN, ON VEN, OFF VH VH, rel VH, hold VQ VQ, nom VQ, rt VD VDU VDL VRO 8) 2) 4) 1) 5) < 1 µs < 10 µs 6) 7) 10) VD, sat trd 3) trr 9) VRL 1) Enable active 2) Hold inactive, pulled up by VQ 3) Power-ON Reset 4) Hold active, clamped to GND by external MC 5) Enable inactive, clamped by int, pull-down resistor 6) Pulse width smaller than 1 µs 7) Hold inactive, released by MC 8) Voltage Controller shutdown 9) Output-low reset 10) No switch on via VE6 possible after E6 was released to VE6 > VE6, rel for more than 4 µs AES03088 Figure 5 Enable and Hold Behavior Data Sheet 10 Rev. 1.4, 2009-01-12 TLE 4287 G Package Outlines 0.35 x 45˚ 1.75 MAX. 0.175 ±0.07 (1.47) C 4 -0.2 1.27 0.41+0.10 2) -0.06 14 B 0.1 0.2 M A B 14x 8 6±0.2 0.64 ±0.25 0.2 M C 1 7 1) 8.75 -0.2 A Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area GPS01230 Figure 6 PG-DSO-14 (Plastic Dual Small Outline) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). Find more information on Infineon packages on the Infineon internet page “Packages”: http://www.infineon.com/packages. SMD = Surface Mounted Device Data Sheet 11 Dimensions in mm Rev. 1.4, 2009-01-12 8˚MAX. 1) 0.19 +0.06 TLE 4287 G Revision History Version Rev. 1.4 Date Changes 2009-01-12 Initial datasheet of RoHS-compliant product of TLE 4287 G. Page 1 and Page 6: “ESD 2kV” statements removed. Page 5: ESD specification added: HBM 1.5kV Page 5: Maximum Junction Temperature modified to -40°C < Tj < 150°C Table 5: Respecified Current Consumption Iq when Regulator OFF. Page 1: “AEC certified” statement added Page 1 and Page 12: RoHS compliance statement and Green product feature added Page 1 and Page 12: Package changed to RoHS compliant version Legal Disclaimer updated Data Sheet 12 Rev. 1.4, 2009-01-12 Edition 2009-01-12 Published by Infineon Technologies AG 81726 Munich, Germany © 2009 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.