TLE4287GNT

TLE4287G 5-V Voltage Regulator Data Sheet Rev. 1.41, 2012-01-30 Automotive Power 5-V Voltage Regulator TLE4287G 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 TLE4287G 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 Package TLE4287G PG-DSO-14 Data Sheet 2 Rev. 1.41, 2012-01-30 TLE4287G 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 State Table for Turn-On/Turn-Off Logic Enable EN Hold H VQ Remarks L X 0V Initial state H X 5V Regulator switched on via pin 6, by ignition for example H L 5V Pin 9 clamped active to GND by controller while pin 6 is still HIGH X L 5V Previous state remains, even ignition is shut off: self-holding state L L 5V Ignition shut off while regulator is in self-holding state L H 0V 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 3 Rev. 1.41, 2012-01-30 TLE4287G I N.C. GND GND GND EN RO 1 2 3 4 5 6 7 14 13 12 11 10 9 8 GND Q GND GND GND H D AEP02240 Figure 1 Pin Configuration (top view) Table 2 Pin Definitions and Functions Pin No. Symbol Function 1 I Input; block to ground directly at the IC by a ceramic capacitor 2 N.C. Not connected 3, 4, 5, 10, 11, 12, 14 GND Ground 6 EN Enable; active high, device is turned ON by HIGH signal at this pin, internally connected to GND via pull-down resistor of 100 kΩ 7 RO Reset Output; open-collector output, internally connected to Q via a pull-up resistor of 30 kΩ 8 D Reset Delay; connect to GND via external delay capacitor for setting delay time 9 H Hold and release; active low, see Table 1 for function, connected to Q via a pull-up resistor of 50 kΩ 13 Q Output; block to GND with a capacitor CQ ≥ 100 nF Data Sheet 4 Rev. 1.41, 2012-01-30 TLE4287G Temperature Sensor Input Saturation Control and Protection Circuit 13 5V Output 1 Control Amplifier Adjustment Buffer Bandgap Reference Reset Generator 7 Reset Output 8 Reset Delay Turn-ON / Turn-OFF Logic 6 Enable Figure 2 Data Sheet 9 Hold 3,4,5,10,11,12,14 GND AEB02241 Block Diagram 5 Rev. 1.41, 2012-01-30 TLE4287G Table 3 Absolute Maximum Ratings Parameter Symbol Limit Values Unit Remarks 42 V – – – mA internally limited VQ IQ -0.3 7 V – – – – internally limited VR IR -0.3 7 V – – – – internally limited VD ID -0.3 42 V – – – – – VEN IEN -42 42 V – -5 5 mA t ≤ 400 ms VH IH -2 7 V – – – – internally limited IGND -0.5 – A – Tj Tstg -40 150 °C – -50 150 °C – VESD -1.5 1.5 kV HBM1) Min. Max. VI II -0.5 Input I Voltage Current Output Q Voltage Current 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 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 6 Rev. 1.41, 2012-01-30 TLE4287G Table 4 Operating Range Parameter Symbol Limit Values Min. Input voltage Junction temperature Unit Remarks Max. VI Tj 7.5 42 V – -40 150 °C – Rthj-pin Rthj-a – 32 K/W measured to pin 4 – 112 K/W 1) Thermal Resistances Junction pin Junction ambient 1) Package mounted on PCB 80 × 80 × 1.5 mm3; 35μ Cu; 5μ Sn; Footprint only; zero airflow. Data Sheet 7 Rev. 1.41, 2012-01-30 TLE4287G Table 5 Electrical Characteristics 7.5 V ≤ VI ≤ 40 V; -40 °C < Tj < 150 °C; VEN > 4 V (unless otherwise specified) Parameter Symbol Limit Values Min. Typ. Max. Unit Test Condition Output voltage VQ 4.90 5.0 5.10 V 5 mA < IQ < 200 mA 7.5 V < VI < 22 V Output voltage VQ 4.90 5.0 5.10 V 5 mA < IQ < 80 mA 7.5 V < VI < 36 V Output current limitation IQ VDR Iq 250 – – mA – 1.8 2.5 V VI < 22 V IQ = 200 mA1) – 1.0 10 μA Regulator OFF: Tj < 125 °C, VEN = 0 V, H = open 7.5 V ≤ VI ≤ 16.5V Iq – 2.3 5 mA 5 mA < IQ < 200 mA, VI = 16 V Load regulation ΔVQ,lo -25 – +25 mV 5 mA < IQ < 200 mA Line regulation ΔVQ,li -25 – +25 V Power Supply Ripple Rejection PSRR – 55 – dB 7.5 V < VI < 22 V IQ = 20 mA fr = 100 Hz; Vr = 0.5 Vpp Temperature output voltage drift ΔVQ/ΔT – 0.5 – mV/K – Output capacitance CQ 100 – – nF – VQ,rt 4.50 4.65 4.80 V – Reset output low voltage VRL – 0.1 0.4 V Reset output high voltage VRH 4.5 – 5.05 V Rext = 4.7 kΩ to VQ2) Rext = ∞ 30 40 kΩ Drop voltage Current consumption Iq = II - IQ Current consumption Iq = II - IQ Reset Generator Reset switching threshold Reset pull-up resistor RR 20 Reset charging current ID,c VDU VDL VD,sat 10 15 38 μA VD = 1.5 V 2.2 3 3.6 V – 0.1 0.43 0.8 V – – 50 – mV VQ < VQ,rt Upper timing threshold Lower timing threshold Delay saturation voltage Data Sheet 8 internally connected to Q Rev. 1.41, 2012-01-30 TLE4287G Table 5 Electrical Characteristics (cont’d) 7.5 V ≤ VI ≤ 40 V; -40 °C < Tj < 150 °C; VEN > 4 V (unless otherwise specified) Parameter Symbol trd trr Reset delay time Reset reaction time Limit Values Unit Test Condition 30 ms 2.0 4.0 μs CD = 100 nF CD = 100 nF 2.3 3.0 4.0 V IC turned-ON 2.0 2.5 3.5 V IC turned-OFF 50 100 200 kΩ internally connected to GND Min. Typ. Max. 7.5 20 0.5 Enable EN, Hold H VEN Enable turn-OFF voltage VEN Enable pull-down resistor REN Enable turn-ON voltage Enable hysteresis ΔVEN 0.2 0.4 0.8 V – Enable input current IEN VH – 35 100 μA VEN = 4 V 30 35 50 % Hold keep on voltage referred to VQ; VQ > 4.5 V VH Hold release voltage 60 70 80 referred to VQ; % VQ > 4.5 V RH Hold pull-up resistor 20 50 100 kΩ 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. 1 I Input Enable e.g. from Terminal 15 Reset to µC Q 13 100 nF 6 7 EN RO TLE 4287 GND 3, 4, 5, 10, 11, 12, 14 H 9 D Hold from µC Figure 3 Data Sheet 5V Output CI CQ 8 100 nF CD 100 nF AES02243 Application Circuit 9 Rev. 1.41, 2012-01-30 TLE4287G VI VEN VEN, ON VEN, OFF < trr VQ VQ, rt trr VD VDU VDL VD, sat VRO trd VRL Power-ON Thermal Reset Shutdown Figure 4 Data Sheet Voltage Drop Undervoltage Secondary Load at Input at Output Spike Bounce Shutdown AES03087_4287 Time Response 10 Rev. 1.41, 2012-01-30 TLE4287G VI VEN VEN, ON VEN, OFF 1) 5) < 1 µs VH VH, rel VH, hold 2) 4) < 10 µs 6) 10) 7) VQ VQ, nom VQ, rt 8) VD VDU VDL VD, sat VRO trr trd 3) 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 Data Sheet Enable and Hold Behavior 11 Rev. 1.41, 2012-01-30 TLE4287G Package Outlines 1.75 MAX. C 1) 4 -0.2 B 1.27 0.64 ±0.25 0.1 2) 0.41+0.10 -0.06 6±0.2 0.2 M A B 14x 14 0.2 M C 8 1 7 1) 8.75 -0.2 8˚MAX. 0.19 +0.06 0.175 ±0.07 (1.47) 0.35 x 45˚ 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. Dimensions in mm SMD = Surface Mounted Device Data Sheet 12 Rev. 1.41, 2012-01-30 TLE4287G Revision History Version Date Rev. 141 2012-01-30 Editorial changes: added coverpage changed Product name TLE4287G (without blanks) Typo on page 7: Junction temperature max: 150°C Rev. 1.4 2009-01-12 Initial datasheet of RoHS-compliant product of TLE4287G. Page 1 and Page 7: “ESD 2kV” statements removed. Page 6: ESD specification added: HBM 1.5kV Page 6: 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 Changes 13 Rev. 1.41, 2012-01-30 Edition 2012-01-30 Published by Infineon Technologies AG 81726 Munich, Germany © 2009 Infineon Technologies AG All Rights Reserved. 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