TLS102B0 INFINEON | Alldatasheet
Document overview
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Technical content
Features
- 20 mA current capability
- Very high accuracy tracking
- Output voltage adjustable down to 2.0 V
- Stable with ceramic output capacitors
- Very low dropout voltage of typ. 120 mV at 20 mA
- Very low current consumption of typ. 3 µA in off mode
- Wide input voltage range -16 V ≤ VIN ≤ 45 V
- Wide temperature range: -40°C ≤ Tj ≤ 150°C
- Short circuit protected output (to GND and to battery)
- Reverse polarity protected input
- Overtemperature protection
- Green Product (RoHS compliant) Potential applications
- Automotive sensor supply
- Protected sensor supply for off-board sensors
- Secondary voltage supply for automotive ECU
- High precision voltage tracking
- Precision voltage replication
- Power switch for off-board load Product validation Qualified for Automotive Applications. Product validation according to AEC-Q100/101.
Description
The TLS102B0 is a monolithic integrated low-dropout voltage tracking regulator with high accuracy in small PG- SCT595-5 package. The TLS102B0 is designed to supply off-board systems, for example sensors in powertrain management systems under the severe conditions of automotive applications. Therefore, the TLS102B0 is equipped with additional protection functions against reverse polarity as well as short circuit to GND and battery. Up to a supply voltage of 40 V and up to an output current of 20 mA the output voltage follows the reference voltage applied to the EN/ADJ input with very high accuracy. The required minimum reference voltage at EN/ADJ is 2.0 V. Type Package Marking TLS102B0MB PG-SCT595-5 02 Data Sheet Please read the Important Notice and Warnings at the end of this document Rev. 1.0 www.infineon.com/power 2018-01-22
High Precision Voltage Tracker Table of contents Data Sheet 2 Rev. 1.0 2018-01-22
1 Block diagram
High Precision Voltage Tracker Block diagram Data Sheet 3 Rev. 1.0 2018-01-22
2 Pin configuration
2.1 Pin assignment TLS102B0MB in PG-SCT595-5 package
Figure 2 Pin configuration
2.2 Pin definitions and functions PG-SCT595-5
Table 1 Pin definitions and functions Pin Symbol Function
1 EN/ADJ Enable / Adjust
Connect the reference voltage to this pin. The reference voltage can be connected directly or via a voltage divider for lower output voltages. For the compensation of disturbances on the line, a capacitor close to the IC pins is recommended. "low" signal disables the device "high" signal enables the device
2 GND Ground
Internally connected to pin 5. Connect to heatsink area.
3 IN Input
Compensating line disturbances with a small ceramic capacitor to GND close to the IC terminals is recommended.
4 OUT Tracker output
20 mA output current capability Connect a capacitor to GND close to the pin, in accordance with capacitance and ESR requirements described in Table 3.
5 GND Ground
Internally connected to pin 2. Connect to heatsink area. TLS102B0 High Precision Voltage Tracker Pin configuration Data Sheet 4 Rev. 1.0 2018-01-22
3 General product characteristics
3.1 Absolute maximum ratings
Table 2 Absolute maximum ratings 1) Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Voltages Input voltage VIN -16 – 45 V – P_3.1.1 Enable/Adjust voltage VEN/ADJ -0.3 – 45 V – P_3.1.2 Output voltage VOUT -5 – 45 V – P_3.1.3 Input output voltage difference VIN-VOUT -30 – 45 V – P_3.1.4 Temperatures Junction temperature Tj -40 – 150 °C – P_3.1.5 Storage temperature Tstg -55 – 150 °C – P_3.1.6 ESD absorption ESD absorption VESD,HBM -2 – 2 kV Human Body Model (HBM)2) P_3.1.7 ESD absorption VESD,CDM -1 – 1 kV Charged Device Model (CDM)3) P_3.1.8 ESD absorption VESD,CDM -1 – 1 kV Charged Device Model (CDM) at corner pins3) P_3.1.9 Notes: 1. Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods of time may affect device reliability. 2. Integrated protection functions as described in the data sheet are designed to prevent IC destruction under fault conditions. Fault conditions are considered as “outside” of the normal operating range and thus do not ensure adherence to the specifications. Protection functions are not designed for continuous repetitive operation. 1 Not subject to production test, specified by design. 2 ESD susceptibility, HBM according to ANSI/ESDA/JEDEC JS001 (1.5k Ω, 100 pF) TLS102B0 High Precision Voltage Tracker General product characteristics Data Sheet 5 Rev. 1.0 2018-01-22
3.2 Functional range
Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Input voltage range VIN 4 – 40 V – P_3.2.1 Adjust input voltage range (Voltage tracking range) VADJ 2 – 20 V – P_3.2.2 Output capacitor’s capacitance required for stability COUT 1 – – µF –4) P_3.2.3 Output capacitor’s ESR required for stability ESRCOUT – – 3 Ω –5) P_3.2.4 Junction temperature Tj -40 – 150 °C – P_3.2.5 Note: Within the functional or operating range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the electrical characteristics table.
3.3 Thermal resistance
Table 4 Thermal resistance 6) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Junction to ambient RthJA – 84 – K/W 2s2p board7) P_3.3.1 Junction to ambient RthJA – 228 – K/W Footprint only8) P_3.3.2 Junction to ambient RthJA – 123 – K/W 300 mm2 PCB heatsink area8) P_3.3.3 Junction to ambient RthJA – 109 – K/W 600 mm2 PCB heatsink area8) P_3.3.4 Junction to soldering point RthJSP – 32 – K/W Pins 2, 5 fixed to TA P_3.3.5 Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go to https://www.jedec.org. 4 The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30% 5 Relevant ESR value at f = 10 kHz. 6 Not subject to production test, specified by design. 7 Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; the Product (Chip+Package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 2 inner copper layers (2 × 70 µm Cu, 2 × 35 µm Cu). Where applicable a thermal via array next to the package contacted the first inner copper layer. 8 Package mounted on PCB FR4; 80 × 80 × 1.5 mm3; 35 µm Cu, 5 µm Sn; horizontal position; zero airflow. TLS102B0 High Precision Voltage Tracker General product characteristics Data Sheet 6 Rev. 1.0 2018-01-22
4 Block description and electrical characteristics
4.1 Tracking regulator
The regulator controls the output voltage VOUT by comparing it to the reference voltage applied to the EN/ADJ pin and driving a PNP pass transistor accordingly. The stability of the control loop depends on the following parameters:
- output capacitor COUT
- load current
- IC temperature
- poles and zeroes in the frequency response of the circuit including TLS102B0
- external circuitry To ensure stable operation, the output capacitor’s capacitance and its equivalent series resistance ESR must meet the requirements given in Table 3. Also the output capacitor must be sized suitably to buffer load transients. An input capacitor CIN is strongly recommended to buffer disturbances on the line. Connect each capacitor close to the pins. Protection circuitry prevents the TLS102B0 itself as well as the application from destruction in case of catastrophic events. These safeguards contain the following:
- output current limitation
- reverse polarity protection
- thermal shutdown Output current limitation In order to protect the pass element and the package from excessive power dissipation the TLS102B0 limits the maximum output current at high input voltage. Reverse polarity protection The TLS102B0 allows a negative supply voltage. However, in reverse polarity condition several small currents flow into the TLS102B0 causing an increase in the junction temperature. Thermal design must consider this effect, as the overtemperature protection circuit does not operate in reverse polarity condition. Thermal shutdown The overtemperature protection circuit prevents immediate destruction of the TLS102B0 in certain fault conditions (for example a continuous short circuit at output) by switching off the power stage. As soon as the IC cools down sufficiently, the regulator restarts. If the fault is not removed, this then leads to an oscillatory behavior of the output voltage. Please note, that a junction temperature above 150°C is outside the maximum ratings and reduces the lifetime of the TLS102B0. TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 7 Rev. 1.0 2018-01-22
Table 5 Electrical characteristics tracking regulator VIN = 13.5 V, 2.0 V ≤ VEN/ADJ ≤ 20 V, Tj = -40°C to 150°C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Tracking output Output voltage tracking accuracy ∆VOUT = VADJ - VOUT ∆VOUT -5 – 5 mV 4 V ≤ VIN ≤ 32 V; 0.1 mA ≤ IOUT ≤ 20 mA;
2 V ≤ VEN/ADJ ≤ VIN -
0.5 V; VEN/ADJ ≤ 20 V
P_4.1.2 Output voltage tracking accuracy ∆VOUT = VADJ - VOUT ∆VOUT -5 – 5 mV 4 V ≤ VIN ≤ 40 V; 0.1 mA ≤ IOUT ≤ 10 mA; P_4.1.3 Load regulation steady-state ∆VOUT ,load -3 – – mV IOUT = 0.1 mA to 20 mA; VEN/ADJ = 5 V P_4.1.4 Line regulation steady-state ∆VOUT ,line – – 3 mV VIN = 5.5 V to 32 V; IOUT = 10 mA; VEN/ADJ = 5 V P_4.1.5 Power supply ripple rejection1) PSRR – 100 – dB fripple = 100 Hz; Vripple = 1 Vpp; IOUT = 10 mA; COUT = 10 μF, ceramic type P_4.1.6 Output current limitation IOUT ,max 21 75 120 mA VOUT = VADJ - 0.1 V; VEN/ADJ = 5 V P_4.1.7 Reverse current IOUT ,rev -1 -0.3 – mA VIN = 0 V; VOUT = 16 V; VEN/ADJ = 5 V P_4.1.10 Reverse current at negative input voltage IIN,rev -8 -4 – mA VIN = -16 V; VOUT = 0 V; VEN/ADJ = 5 V P_4.1.11 Dropout voltage2) Vdr = VIN - VOUT Vdr – 120 300 mV IOUT = 20 mA; VEN/ADJ = 5 V P_4.1.12 1 Not subject to production test, specified by design. 2 Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V. TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 8 Rev. 1.0 2018-01-22
Table 5 Electrical characteristics tracking regulator (continued) VIN = 13.5 V, 2.0 V ≤ VEN/ADJ ≤ 20 V, Tj = -40°C to 150°C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Overtemperature protection1) Overtemperature shutdown threshold Tj,sd – 175 – °C Tj increasing due to power dissipation generated by the device P_4.1.16 Overtemperature shutdown threshold hysteresis Tj,sdh – 15 – °C P_4.1.17 1 Not subject to production test, specified by design. TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 9 Rev. 1.0 2018-01-22
4.2 Typical performance characteristics tracking regulator
Tracking accuracy ΔVOUT versus junction temperature Tj Output current limitation IOUT ,max versus input voltage VIN Output voltage VOUT versus Enable/Adjust voltage VEN/ADJ Output voltage VOUT versus input voltage VIN TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 10 Rev. 1.0 2018-01-22
Load regulation ΔVOUT ,load versus output current IOUT Line regulation ΔVOUT ,line versus input voltage VIN Dropout voltage Vdr versus junction temperature Tj Dropout voltage Vdr versus output current IOUT TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 11 Rev. 1.0 2018-01-22
Reverse input current IIN,rev versus input voltage VIN Reverse output current IOUT ,rev versus output voltage VOUT Power Supply Ripple Rejection PSRR versus ripple frequency fr Output capacitor Equivalent Series Resistance ESRCOUT versus output current IOUT TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 12 Rev. 1.0 2018-01-22
4.3 Current consumption
Table 6 Electrical Characteristics Current Consumption VIN = 13.5 V, 2.0 V ≤ VEN/ADJ ≤ 20 V,Tj = -40°C to 150°C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Unit Note or Test ConditionMin. Typ. Max. Current consumption stand-by mode Iq,off = IIN Iq,off – 3 4.5 µA VEN/ADJ ≤ 0.4 V; Tj ≤ 125 °C Current consumption Iq = IIN - IOUT Iq – 40 75 µA IOUT ≤ 0.1 mA; VEN/ADJ = 5 V; Tj ≤ 125°C Current consumption Iq = IIN - IOUT Iq – 1 1.5 mA IOUT ≤ 20 mA; VEN/ADJ = 5 V TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 13 Rev. 1.0 2018-01-22
4.4 Typical performance characteristics current consumption
Current consumption Iq versus output current IOUT Current consumption Iq versus input voltage VIN Current consumption Iq versus junction temperature Tj Current consumption Iq versus junction temperature Tj (IOUT low) TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 14 Rev. 1.0 2018-01-22
Current consumption in OFF mode Iq,off versus junction temperature Tj TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 15 Rev. 1.0 2018-01-22
4.5 Enable/Adjust input
In order to reduce the quiescent current to a minimum, the TLS102B0 can be switched to stand-by mode by setting the corresponding enable/adjust input “EN/ADJ” to “low” . If the pin EN/ADJ is left open, an internal pull-down resistors keeps the voltage at the pin low and therefore ensures that the regulator is switched off. Table 7 Electrical characteristics Enable input VIN = 13.5 V, 2.0 V ≤ VEN/ADJ ≤ 20 V, Tj = -40°C to 150°C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Unit Note or Test ConditionMin. Typ. Max. Enable/Adjust off voltage range VEN/ADJ,off – – 0.8 V VOUT = 0 V Enable/Adjust on voltage range VEN/ADJ,on 2 – – V VOUT settled Enable/Adjust input current IEN/ADJ – 3 5 µA VEN/ADJ = 5 V
4.6 Typical performance characteristics Enable/Adjust input
Enable/Adjust input current IEN/ADJ versus input voltage VEN/ADJ TLS102B0 High Precision Voltage Tracker Block description and electrical characteristics Data Sheet 16 Rev. 1.0 2018-01-22
5 Application information
Note: The following information is given as an example for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device.
5.1 Application diagram
e.g. off board loads, sensors VREF CIN1CIN2 COUT GND Figure 3 Application circuit
5.2 Selection of external components
5.2.1 Input pin
Figure 3 shows a typical input circuitry for a voltage tracking regulator. The following external components at the input are recommended in case of possible external disturbance. Ceramic capacitor A ceramic capacitor CIN1 (100 nF to 470 nF) at the input filters high frequency disturbance imposed by the line, such as ISO pulses 3a/b. Place CIN1 as close as possible to the input pin of the voltage tracking regulator on the PCB. Aluminum electrolytic capacitor An aluminum electrolytic capacitor CIN2 (10 µF to 470 µF) at the input smoothens high energy pulses, such as ISO pulse 2a. Place CIN2 close to the input pin of the voltage tracking regulator on the PCB. TLS102B0 High Precision Voltage Tracker
Application information
Data Sheet 17 Rev. 1.0 2018-01-22
Overvoltage suppression diode A suitably sized diode D1 suppresses high voltage beyond the maximum ratings of the circuit components and protects the devices from damage due to overvoltage.
5.2.2 Output pin
An output capacitor COUT is mandatory for the stability of the voltage tracking regulator. The values for COUT and ESRCOUT must comply with the specifications in Table 3 described under Output capacitor’s capacitance required for stability and Output capacitor’s ESR required for stability. The graph of Output capacitor Equivalent Series Resistance ESRCOUT versus output current IOUT shows the stable operating range of the TLS102B0MB. For the automotive environment, ceramic capacitors with X5R or X7R dielectrics are recommended. Place COUT on the same side of the PCB as the regulator itself and as close as possible to both the tracker output pin and the GND pin. To deal with rapid transients of input voltage or load current, COUT must be dimensioned appropriately for the application. The output stability must be verified in the actual application.
5.2.3 Enable/Adjust pin
Figure 3 shows the typical input circuitry for a voltage tracking regulator. Typically the Enable/Adjust Pin is connected to a fixed voltage reference which is tracked by the regulator. In the example of the application diagram EN/ADJ is connected to the supply voltage of a microcontroller. Alternatively, the voltage reference can also be adjusted by a voltage divider.
5.3 Thermal considerations
Knowing the input voltage, the output voltage and the load profile of the application, the total power dissipation can be calculated by: PD = VIN −VOUT × IOUT + VIN × Iq Equation 1 with
- PD: continuous power dissipation
- VIN: input voltage
- VOUT: output voltage
- IOUT: output current
- Iq: quiescent current The maximum acceptable thermal resistance RthJA can then be calculated by: RthJA, max= T j, max−Ta PD Equation 2 with
- Tj,max: maximum allowed junction temperature TLS102B0 High Precision Voltage Tracker
Data Sheet 18 Rev. 1.0 2018-01-22
- Ta: ambient temperature Based on the above calculation the proper PCB type and the necessary heat sink area can be determined with reference to the specification in Table 4. Example Application conditions:
- VIN = 13.5 V
- VOUT = VADJ= 5 V
- IOUT = 20 mA
- Ta = 125°C Calculation of RthJA,max: PD = VIN −VOUT × IOUT + VIN × Iq = 13.5 V−5 V × 20 mA + 13.5 V × 0.9 mA = 0.182 W Equation 3 RthJA, max= T j,max −Ta PD = 150°C −125°C 0.182 W = 137.36 K/W Equation 4 As a result, the PCB design must ensure a thermal resistance RthJA,max lower than 137.36 K/W. According to Table 4, at least 300 mm2 heatsink area is required on the FR4 1s0p PCB, or the FR4 2s2p board can be used. TLS102B0 High Precision Voltage Tracker
Data Sheet 19 Rev. 1.0 2018-01-22
6 Package outlines
0.25 B 0.2 A 2.9±0.2 0.3 +0.10 +0.05 0.95 2.5±0.1 1.6±0.1 1.1 MAX. 0.1 MAX. 0.25±0.1 0.6 +0.10 +0.05 1.2 +0.10 +0.05 (0.4) (1.45) (0.23) 1 3 B A 0.15 +0.10 -0.05 (2.2) 1) CONTOUR OF SLOT DEPENDS ON PROFILE OF GULL-WING LEAD FORM NOTE: MOLD FLASH, PROTUSIONS OR GATE BURRS OF 0.2 MM MAXIMUM PER SIDE ARE NOT INCLUDED ALL DIMENSIONS ARE IN UNITS MM THE DRAWING IS IN COMPLIANCE WITH ISO 128 & PROJECTION METHOD 1 [ ] (0.13) Figure 4 PG-SCT595-5 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). For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Dimensions in mm TLS102B0 High Precision Voltage Tracker Package outlines Data Sheet 20 Rev. 1.0 2018-01-22
Revision history
1.0 2018-01-22 Data Sheet - Initial Version TLS102B0 High Precision Voltage Tracker Data Sheet 21 Rev. 1.0 2018-01-22
All referenced product or service names and trademarks are the property of their respective owners. Edition 2018-01-22 Published by Infineon Technologies AG
81726 Munich, Germany
© 2018 Infineon Technologies AG All Rights Reserved. Do you have a question about any aspect of this document? Email: erratum@infineon.com Document reference IFX-Z8F56638467 IMPORTANT NOTICE 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, hints or any typical values stated herein and/or any information regarding the application of the product, 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. In addition, any information given in this document is subject to customer’s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer’s products and any use of the product of Infineon Technologies in customer’s applications. The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of customer’s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. WARNINGS Due to technical requirements products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury