TLE4263G

5-V Low Drop Voltage Regulator TLE 4263 Features • • • • • • • • • • • • • Output voltage tolerance ≤ ±2% 200 mA output current capability Low-drop voltage Very low standby current consumption Overtemperature protection Reverse polarity protection Short-circuit proof Adjustable reset threshold Watchdog Wide temperature range Suitable for use in automotive electronics Green Product (RoHS compliant) AEC Qualified P-DSO-14-3, -8, -9, -11, 14 ^ Functional Description TLE 4263 is a 5-V low drop voltage regulator in a SMD package PG-DSO-14-30, PG-DSO-20-35, or PG-DSO-8-16. The maximum input voltage is 45 V. The maximum output current is more than 200 mA. The IC is short-circuit proof and incorporates temperature protection which turns off the IC at overtemperature. P-DSO-20-1, -6, -7, -9, -14, -15, -17, - The IC regulates an input voltage VI in the range of 6 V < P/PG-DSO-8-3, -6, -7, -8, -9, VI < 45 V to VQ,nom = 5.0 V. A reset signal is generated for an output voltage of VQ,rt < 4.5 V. This voltage threshold can be decreased to 3.5 V by external connection of a voltage divider. The reset delay can be set externally by a capacitor. The integrated watchdog logic supervises the connected microcontroller. The IC can be switched off via the inhibit input, which causes the current consumption to drop from 900 µA to typical 0 µA. Type TLE 4263 GS TLE 4263 G Data Sheet Package PG-DSO-8-16 PG-DSO-20-35 1 Type TLE 4263 GM Package PG-DSO-14-30 Rev. 2.8, 2007-03-20 TLE 4263 Choosing External Components The input capacitor CI is necessary for compensation of line influences. Using a resistor of approx. 1 Ω in series with CI, the oscillating circuit consisting of input inductivity and input capacitance can be damped. The output capacitor is necessary for the stability of the regulating circuit. Stability is guaranteed at values ≥ 22 µF and an ESR of ≤ 3 Ω within the operating temperature range. For small tolerances of the reset delay the spread of the capacitance of the delay capacitor and its temperature coefficient should be noted. TLE 4263 G N.C. N.C. RO GND GND GND GND N.C. D RADJ 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 AEP01099_4263 TLE 4263 GM INH N.C. VI GND GND GND GND N.C. VQ W TLE 4263 GS RO N.C. GND GND GND D RADJ 1 2 3 4 5 6 7 14 13 12 11 10 9 8 AEP03067 INH I GND GND GND Q W I INH RO GND 1 2 3 4 8 7 6 5 AEP01668_4263 Q W RADJ D Figure 1 Pin Configuration (top view) Data Sheet 2 Rev. 2.8, 2007-03-20 TLE 4263 Table 1 Pin Definitions and Functions Pin Symbol Function PG-DSO-8 -16 3 RO Reset output; open-collector output connected to the output via a resistor of 30 kΩ. Not connected Ground Reset delay; connected to ground with a capacitor. Reset threshold; to adjust the switching threshold connect a voltage divider (output to GND) to the pin. If this input is connected to GND, reset is triggered at an output voltage of 4.5 V. Watchdog; rising edge triggered input for monitoring a microcontroller. 5-V output voltage; block to ground with a capacitor, C ≥ 22 µF, ESR ≤ 3 Ω at 10 kHz Input voltage; block to ground directly at the IC with a ceramic capacitor. Inhibit; TTL-compatible, low-active input. Pin Pin PG-DSO-14 PG-DSO-20-30 35 1 3 2 6 7 1, 2, 19, 13 9 10 – 4 5 6 N.C. GND D RADJ 3 - 5, 10 - 12 4-7, 14-17 8 11 7 W 9 12 8 Q 13 18 1 I 14 20 2 INH Data Sheet 3 Rev. 2.8, 2007-03-20 TLE 4263 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 externally scaled down output voltage at the reset threshold input drops below 1.35 V, the external reset delay capacitor is discharged by the reset generator. When the voltage of the capacitor reaches the lower threshold VDRL, a reset signal occurs at the reset output and is held until the upper threshold VDU is exceeded. If the reset threshold input is connected to GND, reset is triggered at an output voltage of typ. 4.65 V. A connected microcontroller will be monitored through the watchdog logic. In case of missing pulses at pin W, the reset output is set to low. The pulse sequence time can be set in a wide range with the reset delay capacitor. The IC can be switched at the TTL-compatible, low-active inhibit input. The IC also incorporates a number of internal circuits for protection against: • • • Overload Overtemperature Reverse polarity W Temperature Sensor Saturation Control and Protection Circuit Watchdog Input Ι Q Output Control Amplifier Bandgap Reference Buffer Reset Generator D Reset Delay RO Reset Output RADJ Reset Threshold Adjustment INH Inhibit GND GND AEB03068 Figure 2 Block Diagram Data Sheet 4 Rev. 2.8, 2007-03-20 TLE 4263 Table 2 Parameter Input I Input voltage Input current Absolute Maximum Ratings Symbol Limit Values Min. Max. 45 – 42 – 6 42 – 7 – 45 6 – 150 150 45 150 V – V – V V – V – V V A °C °C V °C – internally limited – internally limited – – internally limited – internally limited – – – – – – – Unit Remarks VI II VR IR VRADJ VD ID VQ IQ VINH VW IGND Tj Tstg VI Tj -42 – -0.3 – -0.3 -0.3 – -0.3 – -42 -0.3 -0.5 – -50 – -40 Reset Output RO Voltage Current Reset Threshold RADJ Voltage Reset Delay D Voltage Current Output Q Voltage Current Inhibit INH Voltage Watchdog W Voltage Ground GND Current Temperature Junction temperature Storage temperature Operating Range Input voltage Junction temperature Data Sheet 5 Rev. 2.8, 2007-03-20 TLE 4263 Table 2 Parameter Absolute Maximum Ratings (cont’d) Symbol Limit Values Min. Max. 112 92 185 164 32 K/W PG-DSO-14-301); Footprint only K/W PG-DSO-14-301); 300 mm2 Heat sink K/W PG-DSO-8-161); Footprint only K/W PG-DSO-8-161); 300 mm2 Heat sink K/W PG-DSO-14-302) Unit Remarks Thermal Resistance Junction-ambient Rthj-a – – – – Junction-pin 2) Measured to pin 4. Rthj-p – 1) Worst case; package mounted on PCB 80 × 80 × 1.5 mm3; 35µ Cu; 5µ Sn; zero airflow. Data Sheet 6 Rev. 2.8, 2007-03-20 TLE 4263 Table 3 Characteristics VI = 13.5 V; -40 °C < Tj < 125 °C; VINH > 3.5 V; (unless specified otherwise) Parameter Normal Operation Output voltage Output voltage Symbol Limit Values Min. Typ. 5.00 5.00 Max. 5.10 5.10 V V 5 mA ≤ IQ ≤ 150 mA; 6 V ≤ VI ≤ 28 V 6 V ≤ VI ≤ 32 V; IQ = 100 mA; Tj = 100 °C 1) Unit Test Condition VQ VQ 4.90 4.90 IQ Current consumption; Iq Iq = II - IQ Iq Iq Iq Drop voltage Vdr Load regulation ∆VQ,lo Line regulation ∆VQ.li Output current Power Supply Ripple Rejection Reset Generator Switching threshold Reset adjust threshold Reset low voltage Saturation voltage Upper timing threshold Lower reset timing threshold Charge current Reset delay time Reset reaction time 200 – – – – – – – – 250 0 900 10 15 0.35 – 3 54 400 50 mA µA VINH = 0 IQ = 0 mA IQ = 150 mA IQ = 150 mA; VI = 4.5 V IQ = 150 mA1) IQ = 5 mA to 150 mA VI = 6 V to 28 V; IQ = 150 mA fr = 100 Hz; Vr = 0.5 Vpp VRADJ = 0 V VQ > 3.5 V IRO = 1 mA VQ < VR,th – – – 1300 µA 18 mA 23 mA 0.50 25 25 – V mV mV dB PSRR VQ,rt VRADJ,th VRO,l VD,sat VDU VDRL ID,ch trd trr 4.5 1.26 – – 1.45 0.20 40 1.3 0.5 4.65 1.35 0.10 50 1.70 0.35 60 2.8 1.2 4.8 1.44 0.40 100 2.05 0.55 85 4.1 4 V V V mV V V µA ms µs CD = 100 nF CD = 100 nF Rev. 2.8, 2007-03-20 Data Sheet 7 TLE 4263 Table 3 Characteristics (cont’d) VI = 13.5 V; -40 °C < Tj < 125 °C; VINH > 3.5 V; (unless specified otherwise) Parameter Watchdog Discharge current Upper timing threshold Lower timing threshold Inhibit Switching voltage Turn-OFF voltage Input current Symbol Limit Values Min. Typ. 6.25 1.70 0.35 22.5 – – 10 Max. 9.10 2.05 0.55 27 – 0.8 25 µA V V ms V V µA Unit Test Condition ID,wd VDU VDWL 4.40 1.45 0.20 16 3.6 – 5 VD = 1.0 V – – Watchdog trigger time TWI,tr CD = 100 nF IC turned on IC turned off VINH,ON VINH,OFF IINH VINH = 5 V 1) Drop voltage = Vi - VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 6 V input). Note: The reset output is low within the range VQ = 1 V to VQ,rt. Data Sheet 8 Rev. 2.8, 2007-03-20 TLE 4263 Input 470 nF 6 V...45 V KL 15 Reset To MC Ι INH RO Q D 100 nF RADJ 22 µF Output 100 k Ω TLE 4263G GND W 56 k Ω Watchdog from MC AES03069 Figure 3 Application Circuit ΙΙ 1000 µF 470 nF Ι Q ΙQ 22 µF TLE 4263G RO D Ι D, ch CD 100 nF GND Ι GND W RADJ 5.6 k Ω ΙE VΙ + Vr INH Ι RD VQ VRO VE VC VW VRADJ PSRR = 20 log Vr ∆VQ, r AES03070_4263 Figure 4 Test Circuit Data Sheet 9 Rev. 2.8, 2007-03-20 TLE 4263 Reset Timing The power-on reset delay time is defined by the charging time of an external capacitor CD which can be calculated as follows: CD = (trd × ID,ch)/∆V Definitions: • • • • • (1) CD = delay capacitor trd = reset delay time ID,ch = charge current, typical 60 µA ∆V = VDU, typical 1.70 V VDU = upper delay switching threshold at CD for reset delay time VI < trr VQ VQ, rt VD VDU VDRL dV ID, ch = dt CD t t trd VRO trr t t Power-ON Reset Overtemperature Voltage Drop at Input Undervoltage Secondary Load Bounce Spike AET03066 Figure 5 Time Response, Watchdog with High-Frequency Clock Data Sheet 10 Rev. 2.8, 2007-03-20 TLE 4263 Reset Switching Threshold The present default value is typ. 4.65 V. When using the TLE 4263 the reset threshold can be set to 3.5 V < VQ,rt < 4.6 V by connecting an external voltage divider to pin RADJ. The calculation can be easily done since the reset adjust input current can be neglected. If this feature is not needed, the pin has to be connected to GND. VQ,rt = (1 + R1/R2) × VRADJ,th Definitions: • • (2) VQ,rt = reset threshold VRADJ,th = comparator reference voltage, typical 1.35 V Watchdog Timing The frequency of the watchdog pulses has to be higher than the minimum pulse sequence which is set by the external reset delay capacitor CD. Calculation can be done according to the formula given in Figure 6. VW VΙ t VQ T WD, p t VD VDU VDWL VRO T WI, tr t t WD, L t T WI, tr = (VDU - VDWL ) t Ι D, wd CD AED03099_4263 Figure 6 Timing of the Watchdog Function Reset Data Sheet 11 Rev. 2.8, 2007-03-20 TLE 4263 Reset Switching Threshold versus Output Voltage 1.6 V RADJ V 1.4 1.2 1.0 AED01098_4263 Timing Threshold Voltage VDU and VDRL versus Temperature 3.2 V V 2.8 2.4 2.0 AED03062 VI = 13.5 V V Ι = 13.5 V 0.8 0.6 0.4 0.2 0 1.6 1.2 0.8 0.4 0 -40 VDU VDRL 0 1 2 3 4V5 VQ 0 40 80 120 ˚C 160 Tj Reset Switching Threshold versus Temperature 1.6 VRADJ V 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 -40 AED01088 Current Consumption of Inhibit versus Temperature 16 µA IINH 14 12 10 8 6 4 2 AED03063 VINH = 5 V 0 40 80 120 ˚C 160 0 -40 0 40 80 120 ˚C 160 Tj Tj Data Sheet 12 Rev. 2.8, 2007-03-20 TLE 4263 Drop Voltage versus Output Current 800 mV 700 600 500 400 300 200 100 0 mA AED03060_4263 Current Consumption versus Output Current 32 Iq mA 28 24 20 AED03061 Vdr T j = 125 ˚C 25 ˚C VI = 13.5 V 16 12 8 4 0 0 50 100 150 200 300 0 50 100 150 200 mA 300 IQ IQ Current Consumption versus Input Voltage 30 AED01096 Output Voltage versus Input Voltage 12 VQ V 10 AED01097 Ιq mA 25 20 R L = 25 Ω 8 15 6 R L = 25 Ω 10 4 5 2 0 0 0 10 20 30 40 V 50 VΙ 0 2 4 6 8 V 10 VΙ Data Sheet 13 Rev. 2.8, 2007-03-20 TLE 4263 Charge Current and Discharge Current versus Temperature 80 µA 70 60 50 40 30 AED03064 Output Voltage versus Temperature 5.2 V 5.1 AED01090 Ι VQ Ι D, ch V Ι = 13.5 V V D = 1.5 V VI = 13.5 V 5.0 4.9 4.8 20 10 0 -40 Ι D, dis 4.7 0 40 80 120 C 160 Tj 4.6 -40 0 40 80 120 ˚C 160 Tj Pulse Time versus Temperature 40 ms TWI,tr 35 30 25 20 15 AED03065_4263 Output Current versus Input Voltage 300 AED01091 ΙQ mA 250 T j = 25 C V Ι = 13.5 V C D = 100 nF 200 150 100 10 5 0 -40 50 0 40 80 120 C 160 Tj 0 0 10 20 30 40 V 50 VΙ Data Sheet 14 Rev. 2.8, 2007-03-20 TLE 4263 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 7 PG-DSO-14-30 (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). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 15 Dimensions in mm Rev. 2.8, 2007-03-20 8˚MAX. 1) 0.19 +0.06 TLE 4263 2.45 -0.2 0.2 -0.1 2.65 MAX. 0.35 x 45˚ 1.27 0.35 +0.15 2) 0.4 +0.8 0.1 0.2 20x 11 10.3 ±0.3 20 1 12.8 -0.2 1) Index Marking 1) 2) 10 Does not include plastic or metal protrusion of 0.15 max. per side Does not include dambar protrusion of 0.05 max. per side 8˚ MAX. 7.6 -0.2 1) 0.23 +0.09 GPS05094 Figure 8 PG-DSO-20-35 (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). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 16 Dimensions in mm Rev. 2.8, 2007-03-20 TLE 4263 0.35 x 45° 1.75 MAX. 0.175 ±0.07 (1.45) 4 -0.21) 0.19 +0.0 6 1.27 0.41 +0.1 -0.06 8 5 0.1 B 6 ±0.2 0.64 ±0.25 0.2 M A B 8x Index Marking 1 4 5 -0.21) A 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 GPS01229 Figure 9 PG-DSO-8-16 (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). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 17 Dimensions in mm Rev. 2.8, 2007-03-20 8° MAX. TLE 4263 Revision History Version Rev. 2.8 Date Changes 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4263 Page 1: AEC certified statement added Page 1 and Page 15 ff:RoHS compliance statement and Green product feature added Page 1 and Page 15 ff: Package changed to RoHS compliant version Legal Disclaimer updated Data Sheet 18 Rev. 2.8, 2007-03-20 Edition 2007-03-20 Published by Infineon Technologies AG 81726 Munich, Germany © 2007 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. 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