TECHNICAL DATA 5-V Low-Drop Voltage Regulator ILE 4260 is a 5-V low-drop fixed-voltage regulator in P-TO220-5 package. The maximum input voltage is 42 V (65 V≤ 400 ms). The device can produce an output current of more than 500 mA. It is shortcircuit-proof and incorporates temperature protection that disables the circuit at unpermissibly high temperatures. Due to the wide temperature range of – 40 to 150 °C, the ILE 4260 is also suitable for use in automotive applications. The IC regulates an input voltage VI in the range 6 < VI < 35 V to VQnominal =5.0 V. A reset signal is generated for an output voltage of VQ < 4.75 V. The reset delay can be set externally with a capacitor. If the output current is reduced below 10 mA, the regulator switches internally to standby and the reset generator is turned off. The standby current drops to max. 700 µA. ILE4260-2 ILE4260S-2 ILE4260-2 I L E 4260S-2 I L E 4260-2 P-TO220-5-2 P-TO220-5-1 TA = -40° ÷ 125° C for all packages Features • Low-drop voltage • Very low quiescent current • Low starting current consumption • Integrated temperature protection • Protection against reverse polarity • Input voltage up to 42 V • Overvoltage protection up to 65 V (≤ 400 ms) • Short-circuit proof • Suited for automotive electronics • Wide temperature range January, 2011, Rev. 01 ILE4260-2 Pin Configuration (top view) Pin Definitions and Functions (ILE 4260 and ILE 4260 S) Pin No. 1 Symbol VI 2 QVRES 3 4 5 GND DRES VQ Function Input; block directly to ground at the IC by a 470-nF capacitor Reset output; open collector output controlled by the reset delay Ground Reset delay; wired to ground with a capacitor 5-V output voltage; block to ground with a 22-µF capacitor January, 2011, Rev. 01 ILE4260-2 Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. If the output voltage goes below 96% of its typical value, an external capacitor is discharged on pin 4 by the reset generator. If the voltage on the capacitor reaches the lower threshold VST, a reset signal is issued on pin 2 and not cancelled again until the upper threshold VDT is exceeded. For an output current of less than IQN Off = 10 mA the standby changeover turns off the reset generator. The latter is turned on again when the output current increases, the output voltage drops below 4.2 V or the delay capacitor is discharged by external measures. The IC also incorporates a number of internal circuits for protection against: • Overload • Overvoltage • Overtemperature • Reverse polarity Block Diagram January, 2011, Rev. 01 ILE4260-2 Absolute Maximum Ratings Parameter Input (Pin 1) Input voltage Limit Values min max Symbol Unit Remarks – 42 – 42 65 V V t ≤ 400 ms – 1.6 A – –0.3 42 V – – – – internally limited IGND –0.5 – A – VD ID – 0.3 42 V – – – – internally limited – 5.25 VI V – Current VI – VQ IQ – 1.4 A – Temperature Storage temperature Tstg – 50 150 °C – – 32 V 1) – 40 165 °C – – 65 K/W – – 3 K/W – Input current VI VI II Reset Output (Pin 2) Voltage VR Current IR Ground (Pin 3) Current Reset Delay (Pin 4) Voltage Current Output (Pin 5) Differential voltage Operating Range Input voltage VI Junction temperature Tj Thermal Resistances Junction ambient Rthja Junction case Rthjc 1) – See diagram “Output Current versus Input Voltage” * Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. January, 2011, Rev. 01 ILE4260-2 Characteristics VI = 13.5 V; Tj = 25 °C; (unless otherwise specified) Limit Values Parameter Symbol min. typ. max. Unit Test Condition Normal Operation Output voltage VQ 4.75 5.0 5.25 V 25 mA ≤ IQ ≤ 500 mA 6 V ≤ VI ≤ 28 V – 40 °C ≤ Tj ≤ 125 °C Short -circuit current ISC 500 1000 – mA VI =17 V to 28 V; VQ = 0 V Current consumption Iq = II – IQ Iq – 8.5 10 mA1) 6 V ≤ VI ≤ 28 V IQ = 150 mA Current consumption Iq = II – IQ Iq – 50 65 mA1) 6 V ≤ VI ≤ 28 V IQ = 500 mA Current consumption Iq = II – IQ Iq – – 80 mA1) VI ≤ 6 V IQ = 500 mA Drop voltage VDR – 0.35 0.5 V VI = 4.5 V; IQ = 0.5 A Drop voltage VDR – 0.2 0.3 V VI = 4.5 V; IQ = 0.15 A Load regulation ∆VQ – 15 35 mV 25mA≤ IQ ≤ 500 mA Supply-voltage regulation ∆VQ – 15 50 mV VI ≤ 6 V to 28 V; IQ = 100 mA Supply-voltage regulation ∆VQ – 5 25 mV VI ≤ 6 V to 16 V; IQ = 100 mA Ripple rejection SVR – 54 – dB f = 100 Hz; Vr = 0.5 Vpp Temperature drift of output voltage1) αVQ – 2× 10–4 – 1/°C Quiscent current; Iq = II – IQ Iq – 500 700 µA 10V ≤ VI ≤ 16 V; IQ = 0mA Quiscent current; Iq = II – IQ Iq – 750 850 µA 10V ≤ VI ≤ 16 V; IQ = 5mA – Standby Operation January, 2011, Rev. 01 ILE4260-2 Characteristics (cont’d) VI = 13.5 V; Tj = 25 °C; (unless otherwise specified) Limit Values Parameter Symbol min. typ. Unit max. Test Condition Standby Off/Normal On Current consumption IqSOFF – 1.0 1.2 mA see test diagram Current consumption IqNON – 1.7 2.2 mA see test diagram Current consumption IqNOFF – 1.55 2.00 mA see test diagram Current consumption IqSON – 850 1050 µA see test diagram Switching threshold IQNOFF 7.5 10 12.5 mA see test diagram Switching hysteresis ∆IQ 2.25 3 4 mA see test diagram Reset Generator Switching threshold VRT 94 96 97 % in % of VQ; Normal Off/Standby On IQ > 500mA;VI = 6 V Saturation voltage VR – 0.25 0.40 V IR = 3 mA;VI = 4.5 V Reverse current IR – – 1 µA VR = 5 V Charge current ID 7 10 13 µA – Switching threshold VST 0.9 1.1 1.3 V – Delay switching threshold VDT 2.15 2.50 2.75 V – Delay time tD – 25 – ms CD = 100 nF Delay time tt – 5 – µs CD = 100 nF General Data Turn-Off voltage VIOFF 40 43 45 V IQ < 1 mA Turn-Off hysteresis ∆VI – 3.0 – V – Leakage current IQS – 500 – µA VQ = 0 V; VI = 45 V Reverse output current IQR – – 1.5 mA VQ = 5 V; VI = open 1) See diagram January, 2011, Rev. 01 ILE4260-2 Application Circuit Time Responce January, 2011, Rev. 01 ILE4260-2 Time Response in Standby Condition January, 2011, Rev. 01 ILE4260-2 Package Dimensions P-TO220-5-2 P-TO220-5-1 January, 2011, Rev. 01