Dual Low Drop Voltage Regulator TLE 4473 GV53 TLE 4473 GV52 Features • • • • • • • • • • • • Output 1: 300 mA, 3.3 V (±3%) or 2.6 V (±3%) Output 2: 180 mA, 5 V (±2%) Low quiescent current consumption Disable function separately for both outputs Wide operation range: up to 42 V Very low dropout voltage 2 independent reset circuits Watchdog Output protected against short circuit Wide temperature range: -40 °C to 150 °C Overtemperature protection Overload protection Functional Description The TLE 4473 is a monolithic integrated voltage regulator with two very low-drop outputs, Q1 for loads up to 300 mA and Q2 providing a maximum of 180 mA. An input voltage in the range of 5.6 V ≤ VI ≤ 45 V is transformed to VQ2 = 5.0 V (±2%) and VQ1 = 3.3 V ±3% (TLE 4473 GV53) or VQ1 = 2.6 V ±3% (TLE 4473 GV52). The device is also available with dual 5 V output voltage, please refer to the TLE 4473 GV55 data sheet. Two inhibit pins allow a flexible power management. Both outputs can independently be enabled or disabled. Thus the current consumption of the application can be reduced to a minimum. The quiescent current of the TLE 4473 with both outputs disabled is < 1 µA. The TLE 4473 is designed to supply microprocessor systems and sensors under the severe conditions of automotive applications and is therefore equipped with additional protection functions against overload, short circuit and overtemperature. The device operates in the wide junction temperature range of -40 °C to 150 °C. Type Package TLE 4473 GV53 PG-DSO-12 TLE 4473 GV52 PG-DSO-12 Data Sheet 1 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 The low drop regulator features a reset with adjustable power on delay for each of the outputs. In addition the output for the microcontroller supply comes up with a watchdog in order to supervise a microcontroller. VBat TLE 4473 GV53 / TLE 4473 GV52 7 I Q2 4 10 µF Overtemperature Shutdown Bandgap Reference Current and Saturation Control, Overcurrent Protection e. g. µC I/O or Sensor Supply 4.7 kΩ Reset Generator RO2 2 ?1 D2 10 µC 9 INH2 Inhibit 100 nF Q1 5 22 µF or 10 µF Current and Saturation Control, Overcurrent Protection Ignition 8 INH1 Reset Generator Watchdog Inhibit µC Core Supply 4.7 kΩ RO1 3 µC Reset WI 1 Watchdog (from µC) D1 11 100 nF 6, 12 GND Figure 1 Data Sheet AEB03507.VSD Block Diagram with Typical External Components 2 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Reset and Watchdog Behaviour: The reset output RO1 is in high-state if the voltage on the delay capacitor CD1 is greater or equal VDL1. The delay capacitor CD1 is charged with the current IDC1 for output voltages greater than the reset threshold VRT1. If the output voltage drops below VRT1 (“reset condition”), the delay capacitor CD1 will be discharged rapidly. If VD1 reaches VDL1, the reset output RO1 is set to low. At power-on, the charging process of CD1 starts from 0 V, which leads to the equation C D1 × V DU1 t D, on = ---------------------------I DC1 (1) for the power-on reset delay time. When the voltage at the delay capacitor has reached VDU1 and RO1 was set to high, the watchdog circuit is enabled and discharges CD1 with the constant current IDD1. If there is no rising edge observed at the watchdog input, CD1 will be discharged down to VDL1, where the reset output RO1 will be set to low and CD1 will be charged again with the current IDC1 until VD1 reaches VDU1 and reset will be set high again. If a watchdog pulse (rising edge at watchdog input WI) occurs during the discharge period, CD1 is charged again and the reset output stays high. After VD1 has reached VDU1, the periodical cycle starts again. The watchdog timing is shown in Figure 2. The maximum duration between two watchdog pulses corresponds to the minimum watchdog trigger time TWI,tr. Higher capacitances on pin D1 result in larger watchdog trigger time: T WI,tr max = 0.42 ms/nF × C D1 (2) If the output voltage Q2 decreases below VRT2 , the external capacitor CD2 is discharged. When the voltage at this capacitor drops below VDL2, a reset signal is generated at pin 11 (RO2), i.e. the reset output is set to low-level. If the output voltage rises above the reset threshold, CD2 will be charged with the constant current IDC2. After the power-onreset time, the voltage at the capacitor reaches VDU2 and the reset output will be set to high again. The value of the power-on-reset time can be set within a wide range depending of the capacitance of CD2 using Equation (1) analogous for Q2. Data Sheet 3 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 VW Ι t VΙ VQ t T WD, p VD1 t T WI, tr VDU1 VDL1 t WD, L VWO T WI, tr = (VDU1 - VDL1) Ι DD1 C D1 ; T WD, p = (VDU1 - VDL1) (Ι DC1 + Ι DD1 ) Ι DC1 x Ι DD1 C D1 ; t WD, L = t (VDU1 - VDL1) Ι DC1 t C D1 AED03099_4473gv53 Figure 2 Data Sheet Watchdog Timing Schedule 4 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 P-DSO-12-6 WI 1 12 GND RO2 2 11 D1 RO1 3 10 D2 Q2 4 9 INH2 Q1 5 8 INH1 N.C. 6 7 I AEP03318_4473gv53.VSD Pin 6 and heat slug should be connected to GND Figure 3 Pin Configuration TLE 4473 GV53, TLE 4473 GV52 (top view) Table 1 Pin Definitions and Functions (TLE 4473 GV53, TLE 4473 GV52) Pin No. Symbol Function 1 WI Watchdog input; input for watchdog pulses, positive edge triggered 2 RO2 Reset output for Q2; open collector output 3 RO1 Reset and watchdog output for Q1; open collector output 4 Q2 Output voltage 2 (5 V); block to GND with a capacitor CQ2 ≥ 22 µF, ESR < 5 Ω at 10 kHz or CQ2 ≥ 10 µF, ESR < 4 Ω at 10 kHz 5 Q1 Output voltage 1 (3.3 V/2.6 V); block to GND with a capacitor CQ1 ≥ 10 µF, ESR < 5 Ω at 10 kHz 6 N.C. Not connected; connect to GND 7 I Input voltage; block to GND directly at the IC with a ceramic capacitor. 8 INH1 Inhibit input 1; low level at INH2 and INH1 disables Q2 and Q1 9 INH2 Inhibit input 2; low level disables Q2 10 D2 Reset Delay 2; connect a capacitor to set reset delay for Q2 11 D1 Reset Delay 1; connect a capacitor to GND to set reset delay and watchdog timing for Q1 12 GND Ground Heatsink N. C. Not connected; connect to GND Data Sheet 5 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Table 2 Absolute Maximum Ratings -40 °C < Tj < 150 °C Parameter Symbol Limit Values Unit Remarks Min. Max. VI II -42 45 V – – – mA Internally limited VQ2 IQ2 -0.3 18 V – – – mA Internally limited VQ1 IQ1 -0.3 18 V – – – mA Internally limited VINH1 IINH1 -42 45 V – -2 2 mA – VINH2 IINH2 -42 45 V – -2 2 mA – VRO1 IRO1 -0.3 18 V – – – mA Internally limited VRO2 IRO2 -0.3 18 V – – – mA Internally limited VD1 ID1 -0.3 7 V – -5 5 mA – VD ID -0.3 7 V – -5 5 mA – Input I Voltage Current Stand-by Output Q2 Voltage Current Main Output Q1 Voltage Current Inhibit Input INH1 Voltage Current Inhibit Input INH2 Voltage Current Reset Output RO1 Voltage Current Reset Output RO2 Voltage Current Reset Delay D1 Voltage Current Reset Delay D2 Voltage Current Data Sheet 6 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Table 2 Absolute Maximum Ratings (cont’d) -40 °C < Tj < 150 °C Parameter Symbol Limit Values Unit Remarks Min. Max. VRADJ IRADJ -0.3 7 V – -5 5 mA – Tj Tstg -40 150 °C – -50 150 °C – VESD –2 2 kV Human Body Model Watchdog Input WI Voltage Current Temperatures Junction temperature Storage temperature ESD Protection Electrostatic Discharge Voltage Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Data Sheet 7 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Table 3 Operating Range Parameter Symbol Limit Values Unit Remarks Min. Max. 5.6 42 V Q1 & Q2 4.5 42 V only Q1 regulating -40 150 °C – – 3 K/W – Junction ambient Rthj-pin Rthj-a – 115 K/W PCB Heat Sink Area 0 mm2 1) Junction ambient Rthj-a – 100 K/W PCB Heat Sink Area 100 mm2 1) Junction ambient Rthj-a – 60 K/W PCB Heat Sink Area 300 mm2 1) Junction ambient Rthj-a – 48 K/W PCB Heat Sink Area 600 mm2 1) Input voltage Junction temperature VI Tj Thermal Resistances PG-DSO-12 Junction pin 1) Package mounted on PCB 80 × 80 × 1.5 mm3; 35 µ Cu; 5 µ Sn; zero airflow. Note: In the operating range the functions given in the circuit description are fulfilled. Integrated protection functions are designed to prevent IC destruction under fault conditions. Protection functions are not designed for repetitive operation. Data Sheet 8 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Electrical Characteristics VI1 =13.5 V; VINH1 =VINH2= 5V; – 40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values min. typ. max. Unit Test Condition REGULATOR 2: Output Q2 Output voltage VQ2 4.90 5.0 5.10 V 1 mA < IQ2< 180 mA; 6 V < VI < 28 V Output current limitation IQ2 200 300 600 mA VQ2 = 4.5 V – 300 600 mV IQ2 = 100 mA; 1) Output drop voltage; VDRQ2 VDRQ2 = VI2 – VQ2 Load regulation ∆VQ2,Lo – 15 50 mV 1 mA < IQ2 < 200 mA; Line regulation ∆VQ2,Li – 5 20 mV IQ2 = 1 mA; 6 V < VI < 28 V Power supply ripple rejection PSRR – 65 – dB fr = 100 Hz; Vr = 1 Vpp – 165 µA TLE 4473 GV52; IQ2 = 500 µA; Tj = 25 °C; VINH1 < VINH1 OFF (Q1 off) – 205 µA TLE 4473 GV52; IQ2= 500 µA; Tj = 85 °C; Current Consumption Quiescent current; stand-by Iq = II – IQ2 Iq VINH1 < VINH1 OFF (Q1 off) – 180 µA TLE 4473 GV53; IQ2 = 500 µA; Tj = 25 °C; VINH1 < VINH1 OFF (Q1 off) – 210 µA – 235 µA TLE 4473 GV53; IQ2= 500 µA; Tj = 85 °C; VINH1 < VINH1 OFF (Q1 off) IQ2 = 500 µA; VINH1 < VINH1 OFF (Q1 off) Data Sheet 9 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Electrical Characteristics (cont’d) VI1 =13.5 V; VINH1 =VINH2= 5V; – 40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values min. typ. Unit Test Condition max. Current Consumption (cont’d) Quiescent current; stand-by Iq = II – IQ2 Iq Quiescent current; inhibited Iq – – 1 µA VINH1=VINH2= 0V; TJ < 85°C VINH2 ON VINH2 OFF IINH2 ON IINH2 OFF – – 2.3 V VQ2 on 0.8 – – V VQ2 off –1 0.5 3 µA –1 0.1 1 µA VINH2 = 5 V 0 V < VINH2 < 0.8 V IDC2 VDU2 5.0 9.0 13.0 µA VD2 = 0.7 V 1.6 1.8 2.2 V – Lower timing threshold VDL2 0.3 0.45 0.6 V – Saturation Voltage VD2,SAT 100 mV VQ2 < VRT2 Reset delay time TRD2 12 28 ms Reset reaction time Trr – 10 µs CD2 = 100 nF CD2 = 100 nF 5 mA IQ2 = 100 mA; VINH1 < VINH1 OFF(Q1 off) Inhibit Input INH2 Turn-on Voltage Turn-off Voltage H-input current L-input current Reset Timing D2 Charge current Upper timing threshold Data Sheet 20 10 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Electrical Characteristics (cont’d) VI1 =13.5 V; VINH1 =VINH2= 5V; – 40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values Unit Test Condition min. typ. max. 4.5 4.65 4.8 V – – – 1.4 mA Collector current of RO1, power good, reset still delayed. VQ2=5V, VD2=0V,VRO2=0.3V – 0.15 0.3 V VQ2 ≥ 1 V, VD2=0V, Reset Output RO2 Reset switching threshold VRT2 Reset output current IRO2 Reset output low voltage VRO2L Reset high voltage VRO2H 4.5 – – V RRO2,ext=4.7kΩ Output voltage VQ12 3.20 3.3 3.40 V TLE 4473 GV53 1 mA < IQ1< 300 mA; 4.5 V < VI < 28 V Output voltage VQ12 2.52 2.60 2.68 V TLE 4473 GV52 1 mA < IQ1< 300 mA; 4.5 V < VI < 28 V Output current limitation IQ1 350 500 600 mA VQ1 = 3.0 V (TLE 4473 GV53); VQ1 = 2.3 V (TLE 4473 GV52) Load regulation ∆VQ1,Lo – 5 50 mV 5 mA < IQ1 < 300 mA; Line regulation ∆VQ1,Li – 5 20 mV IQ1 = 5 mA; 6 V < VI< 28 V Power-SupplyRipple-Rejection PSRR – 65 – dB fr = 100 Hz; Vr = 1Vpp IRO2= 0.5mA REGULATOR 1: Output Q1 Data Sheet 11 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Electrical Characteristics (cont’d) VI1 =13.5 V; VINH1 =VINH2= 5V; – 40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values min. typ. max. – 200 265 Unit Test Condition Current Consumption Quiescent current; Iq = II – IQ1– IQ2 Iq µA TLE 4473 GV52; IQ1 = 500 µA; Q1 on; Q2 off; Tj < 85°C – 210 280 µA TLE 4473 GV53; IQ1 = 500 µA; Q1 on; Q2 off; Tj < 85°C – 7 20 mA IQ1 = 300 mA IQ2 = 500 µA, VQ1 & VQ2 on – 250 500 µA IQ2 = IQ1 = 500 µA; VQ1 & VQ2 on Inhibit Input INH1 Turn-on Voltage Turn-off Voltage H-input current L-input current VINH1 ON VINH1 OFF IINH1 ON IINH1 OFF – – 2.3 V VQ1 on 0.8 – – V VQ1 off –1 0.5 3 µA –1 0.1 1 µA VINH1= 5 V 0 V < VINH1< 0.8 V Watchdog and Reset Timing D1 Charge current Discharge current Upper timing threshold Lower timing threshold Data Sheet IDC1 IDD1 VDU1 3.0 7.0 11.0 µA 1.1 1.5 3.7 µA VD1 = 0.7 V VD1 = 0.7 V 0.7 1.1 1.6 V – VDL1 0.2 0.35 0.6 V – 12 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Electrical Characteristics (cont’d) VI1 =13.5 V; VINH1 =VINH2= 5V; – 40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values min. typ. Unit Test Condition max. Watchdog and Reset Timing D1 (cont’d) Saturation Voltage VD1,SAT Watchdog trigger time TWI,tr 24 Reset delay time TRD1 11 Reset reaction time Trr – VRT1 2.97 100 mV VQ1 < VRT2 32 40 ms CD1 = 100 nF 17 23 ms 5.0 µs CD1 = 100 nF CD1 = 100 nF 3.08 3.18 V TLE 4473 GV53 2.34 2.42 2.50 V TLE 4473 GV52 Reset Output RO1 Reset switching threshold Reset threshold headroom VR1HEAD 100 – – mV TLE 4473 GV53 Reset threshold headroom VR1HEAD 80 – – mV TLE 4473 GV52 – – 1.4 mA Collector current of RO1, power good, reset still delayed. VQ1= 3.30 V (TLE 4473 GV53), VQ1 = 2.60 V (TLE 4473 GV52); VQ2=5.0 V; VD1=0 V,VRO1=0.3 V – 0.1 0.3 V VQ1 ≥ 1 V, VD1=0V, Reset output current IRO1 Reset output low voltage VRO1L Reset output high voltage VRO1H 2.45 – – V RRO1,ext=4.7kΩ connected to Q1;TLE 4473 GV52 Reset output high voltage VRO1H 3.15 – – V RRO1,ext=4.7kΩ connected to Q1;TLE 4473 GV53 IRO1=0.5mA 1) Drop voltage = VI – VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input) Data Sheet 13 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 C 0.1 12x 7.8 ±0.1 0.1 C (Heatslug) Seating Plane 5˚ ±3˚ 35 B +0.075 0.25 -0 .0 7.5 ±0.11) 0.1±0.05 STANDOUT (1.55) 0.8 0 +0.1 STANDOFF 2.35 ±0.1 2.6 MAX. Package Outlines (0.2) 0.7 ±0.15 10.3 ±0.3 0.25 B 12 Index Marking 12x 0.25 M C A B 0.4 A 7 7 1 6 6 12 4.2 ±0.1 6.4 ±0.11) 1.6 ±0.1 Bottom View 1 Heatslug 1 +0.13 5.1±0.1 5x 1=5 1) Does not include plastic or metal protrusion of 0.15 max. per side PG-DSO-12-4, -5, -8, -11, -12, -16-PO V04 Figure 4 PG-DSO-12 (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). Data Sheet 14 Rev. 1.1, 2008-09-19 TLE 4473 GV53 TLE 4473 GV52 Revision History Version Date Changes Rev. 1.1 2008-19-09 Initial version of RoHS-compliant derivate of TLE 4473 GV53 Page 1: AEC certified statement added Page 1 and Page 14: RoHS compliance statement and Green product feature added Page 1 and Page 14: Package changed to RoHS compliant version Legal Disclaimer updated Rev. 1.0 2004-07-14 Initial version You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Dimensions in mm SMD = Surface Mounted Device Data Sheet 15 Rev. 1.1, 2008-09-19 Edition 2008-09-19 Published by Infineon Technologies AG 81726 München, Germany © Infineon Technologies AG 2008. All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). 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 your 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 your nearest Infineon Technologies Office. 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