TLS125D0EJXUMA1

OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Features • • • • • • • • • • • • • • 250 mA current capability Very high tracking accuracy Output voltage adjustable down to 2.0 V Stable with ceramic output capacitors Very low dropout voltage of typically 250 mV at 250 mA Very low current consumption of 0.1 µA in standby mode Overvoltage and undervoltage indication at power good output Internally controlled soft start 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 in 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. Description The OPTIREG™ linear voltage regulator TLS125D0EJ is a monolithic, integrated low-dropout voltage tracking regulator with high accuracy in a small PG-DSO-8 exposed pad package. The TLS125D0EJ is designed to supply off-board systems, for example sensors in powertrain management systems under the severe conditions of automotive applications. The TLS125D0EJ provides protection functions against reverse polarity as well as against short circuit to GND and to battery. The output voltage follows the reference voltage that is applied to Target datasheet Please read the Important Notice and Warnings at the end of this document www.infineon.com/OPTIREG-linear Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Description the ADJ input with very high accuracy, up to a supply voltage of 40 V and up to an output current of 250 mA. The required minimum reference voltage at ADJ is 2.0 V. Type Package Marking TLS125D0EJ PG-DSO-8 125D0 Target datasheet 2 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Table of contents Table of contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 2.1 2.2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 3.1 3.2 3.3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 Block description and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Functional description tracking regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics tracking regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Typical performance characteristics tracking regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Typical performance characteristics current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Functional description enable input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics enable input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Typical performance characteristics enable input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Functional description adjust input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics adjust input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Typical performance characteristics adjust input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Functional description power good output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Electrical characteristics power good output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 5.1 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.3 5.4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Selection of external components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Output pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Adjust pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Power good pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Target datasheet 3 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Table of contents 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Target datasheet 4 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block diagram 1 Block diagram OUT IN Protection circuits Power good EN PG ADJ Enable Temperature shutdown GND Figure 1 Target datasheet Block diagram 5 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Pin configuration 2 Pin configuration 2.1 Pin assignment OUT 1 8 IN N.C. 2 7 EN GND 3 6 N.C. PG 4 5 ADJ Figure 2 Pin configuration 2.2 Pin definitions and functions Pin Symbol Function 1 OUT Tracker output: 250 mA output current capability. Connect this pin to an output capacitor COUT to GND close to the IC’s terminals, respecting capacitance and ESR requirements given in Functional range. 2 N.C. Not connected 3 GND Ground 4 PG Power good output: Connect this pin via a pull-up resistor to a positive voltage rail. A "low" signal indicates a fault condition of the tracker output. This pin is an open drain output. 5 ADJ Adjust input: Connect this pin to the reference voltage. 6 N.C. Not connected 7 EN Enable input: "High" enables the device. "Low" disables the device. If the enable function is not required, then connect this pin to IN. 8 IN Input: It is recommended to connect this pin to GND using a small ceramic capacitor close to the pins in order to compensate line influence. Pad – Exposed pad: Connect the exposed pad to GND. It is recommended to connect the exposed pad to a heat sink. Target datasheet 6 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker General product characteristics 3 General product characteristics 3.1 Absolute maximum ratings Table 1 Absolute maximum ratings1) Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Input IN Voltage VIN -16 – 45 V – P_3.1.1 VEN -16 – 45 V – P_3.1.2 VADJ -16 – 45 V – P_3.1.3 VOUT -5 – 45 V – P_3.1.4 VIN-VOUT -30 – 45 V – P_3.1.5 VPG -0.3 – 7 V – P_3.1.6 Junction temperature Tj -40 – 150 °C – P_3.1.7 Storage temperature Tstg -55 – 150 °C – P_3.1.8 ESD susceptibility to GND VESD,HBM -4 – 4 kV 2) Human Body P_3.1.9 ESD susceptibility to GND VESD,CDM -1 – 1 kV 3) Charged Device P_3.1.10 ESD susceptibility to GND VESD,CDM -1 – 1 kV 3) Charged Device P_3.1.11 Enable EN Voltage Adjust ADJ Voltage Output OUT Voltage Input output voltage difference Voltage Power good PG Voltage Temperatures ESD susceptibility Model (HBM) Model (CDM) Model (CDM) at corner pins Notes: 1 2 3 Not subject to production test, specified by design. ESD susceptibility, HBM according to ANSI/ESDA/JEDEC JS001 (1.5 kΩ, 100 pF). ESD susceptibility, Charged Device Model "CDM" according JEDEC JESD22-C101. Target datasheet 7 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker General product characteristics 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. Integrated protection functions are designed to prevent IC destruction under fault conditions described in the datasheet. Fault conditions are considered as outside the normal operating range. Protection functions are not designed for continuous repetitive operation. 2. 3.2 Functional range Table 2 Functional range Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Input voltage range VIN 4 – 40 V – P_3.2.1 Enable voltage range VIN 2 – 40 V – P_3.2.2 Adjust input voltage range (voltage tracking range) VADJ 2 – 14 V – P_3.2.3 Capacitance of output capacitor COUT 1 – – µF 4)5) P_3.2.4 Equivalent series resistance ESRCOUT of output capacitor – – 5 Ω –5) P_3.2.5 Junction temperature -40 – 150 °C –5) P_3.2.6 Note: 4 5 Tj Within the functional range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the electrical characteristics table. The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30%. Not subject to production test, specified by design. Target datasheet 8 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker General product characteristics 3.3 Thermal resistance Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go to www.jedec.org. Thermal resistance 6) Table 3 Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Junction to case RthJC – 21 – K/W – P_3.3.1 Junction to pin RthJP – 84 – K/W – P_3.3.2 Junction to ambient RthJA – 53 – K/W 7) 2s2p board P_3.3.3 Junction to ambient RthJA – 151 – K/W 8) 1s0p board, P_3.3.4 Junction to ambient RthJA – 77 – K/W 8) 1s0p board, P_3.3.5 Junction to ambient RthJA – 66 – K/W 8) 1s0p board, P_3.3.6 footprint only 300 mm2 heatsink area on PCB 600 mm2 heatsink area on PCB Note: 6 7 8 This thermal data was generated in accordance with JEDEC JESD51 standards. For more information visit www.jedec.org. Not subject to production test, specified by design. Specified RthJA value is according to JEDEC JESD51-2,-5,-7 at natural convection on FR4 2s2p board; the product (chip and package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with two 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. Specified RthJA value is according to JEDEC JESD51-3 at natural convection on FR4 1s0p board; the product (chip and package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with one copper layer (1 × 70 µm Cu). Target datasheet 9 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4 Block description and electrical characteristics 4.1 Functional description tracking regulator The regulator controls the output voltage VOUT by comparing it to the voltage applied to the ADJ pin and driving a PNP pass transistor accordingly. The stability of the control loop depends on: • The output capacitor COUT • Load current • Chip temperature • The poles and zeroes in the frequency response of the circuit consisting of TLS125D0EJ and the load An input capacitor CIN is strongly recommended for buffering the line influence. To ensure stable operation, the output capacitor’s capacitance and its equivalent series resistance ESR must fulfill the requirements in the Functional range. The output capacitor must be sized suitably to buffer load transients. Connect each capacitor close to the pins. The internal protection features are designed to protect the device itself as well as the application from destruction in case of catastrophic events. These safeguards contain: • 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 device limits the maximum output current at high input voltage. Reverse polarity protection The device allows a negative supply voltage. However, in reverse polarity condition several small currents flowing into the device increase the junction temperature. Thermal design must consider this effect,because in reverse polarity condition the overtemperature protection circuit does not operate. Thermal shutdown The overtemperature protection circuit is designed to prevent immediate destruction of the device in certain fault conditions (for example a permanent short circuit at output) by switching off the power stage. After the chip cools down, the regulator restarts. If the fault is not removed, then this leads to an oscillatory behavior of the output voltage. A junction temperature above 150 is outside the maximum ratings and reduces the lifetime of the device. Target datasheet 10 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.2 Electrical characteristics tracking regulator Table 4 Electrical characteristics tracking regulator VIN = 13.5 V; VADJ ≥ 2.0 V; VEN ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Tracking output Output voltage tracking accuracy ∆VOUT -5 – 5 mV ∆VOUT = VADJ - VOUT; P_4.1.1 5.5 V ≤ VIN ≤ 22 V; 0.1 mA ≤ IOUT ≤ 250 mA; 2 V ≤ VADJ ≤ VIN -0.5 V Output voltage tracking accuracy ∆VOUT -5 – 5 mV ∆VOUT = VADJ - VOUT; P_4.1.2 5.5 V ≤ VIN ≤ 32 V; 0.1 mA ≤ IOUT ≤ 120 mA; 2 V ≤ VADJ ≤ VIN -0.5 V Load regulation steady state ∆VOUT,load -5 -1 – mV 0.1 mA ≤ IOUT ≤ 250 mA; VADJ = 5 V P_4.1.3 Line regulation steady state ∆VOUT,line – 1 5 mV 5.5 V ≤ VIN ≤ 32 V; IOUT = 10 mA; VADJ = 5 V P_4.1.4 Power supply ripple rejection PSRR – 80 – dB 9) f P_4.1.5 Output current limitation IOUT,max 251 550 750 mA VOUT = VADJ - 0.1 V; VADJ = 5 V P_4.1.6 Reverse current IOUT,rev -8 -1 – mA VIN = 0 V; VOUT = 16 V; VADJ = 5 V P_4.1.9 Reverse current at negative input voltage IIN,rev -10 -2 – mA VIN = -16 V; VOUT = 0 V; VADJ = 5 V P_4.1.10 ripple = 100 Hz; Vripple = 1 Vpp; IOUT = 10 mA; COUT = 10 μF; ceramic type (table continues...) 9 Not subject to production test, specified by design. Target datasheet 11 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics Table 4 (continued) Electrical characteristics tracking regulator VIN = 13.5 V; VADJ ≥ 2.0 V; VEN ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Dropout voltage Vdr – Typ. 250 Unit Note or condition Number mV 10) V P_4.1.11 Max. 500 dr = VIN - VOUT; IOUT = 250 mA; VADJ = 5 V Overtemperature protection Overtemperature shutdown threshold Tj,sd – 177 – °C Tj increasing due P_4.1.12 to power dissipation generated by the device Overtemperature shutdown threshold hysteresis ∆Tj,sdh – 10 – K – 10 P_4.1.13 Measured when the output voltage VOUT has dropped 100 mV from the nominal value obtained at VIN = 13.5 V. Target datasheet 12 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.3 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 adjust voltage VADJ Output voltage VOUT versus input voltage VIN Target datasheet 13 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 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 Target datasheet 14 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics Reverse current IIN,rev versus input voltage VIN Reverse current IOUT,rev versus output voltage VOUT Power supply ripple rejection PSRR versus ripple frequency fr Output capacitor ESRCOUT versus output current IOUT Target datasheet 15 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.4 Electrical characteristics current consumption Table 5 Electrical characteristics current consumption VIN = 13.5 V; VADJ ≥ 2.0 V; VEN ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Current consumption stand- Iq,off by state – 0.1 7 µA Iq,off = IIN; VEN ≤ 0.4 V; Tj ≤ 125°C P_4.3.1 Current consumption Iq – 65 110 µA Iq = IIN - IOUT; IOUT ≤ 0.1 mA; VADJ = 5 V; Tj ≤ 125°C P_4.3.2 Current consumption Iq – 10 25 mA Iq = IIN - IOUT; IOUT ≤ 250 mA; VADJ = 5 V P_4.3.3 Target datasheet 16 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.5 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) Target datasheet 17 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics Current consumption in OFF mode Iq,off versus junction temperature Tj Target datasheet 18 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.6 Functional description enable input On a "low" signal at the enable input EN the device switches to standby mode in order to minimize the quiescent current. If the EN pin is not connected, then the "low" level from the internal pull-down resistor switches off the regulator. 4.7 Electrical characteristics enable input Table 6 Electrical characteristics enable input VIN = 13.5 V; VADJ ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Enable off voltage range VEN,off – – 0.8 V VOUT = 0 V; IOUT ≤ 5 μA; Tj ≤ 125°C P_4.5.1 Enable on voltage range VEN,on 2 – – V VOUT settled P_4.5.2 Enable input current IEN – 2 4 µA VEN = 5 V P_4.5.3 Target datasheet 19 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.8 Typical performance characteristics enable input Enable input current IEN versus enable input voltage VEN Target datasheet 20 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.9 Functional description adjust input The adjust input must be connected to the reference voltage that the device tracks. 4.10 Electrical characteristics adjust input Table 7 Electrical characteristics adjust input VIN = 13.5 V; VADJ ≥ 2.0 V; VEN ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Adjust input current Target datasheet IADJ – Typ. 0.2 21 Unit Note or condition Number μA VADJ = 5 V P_4.7.1 Max. 1.5 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.11 Typical performance characteristics adjust input Adjust input current IADJ versus adjust input voltage VADJ Target datasheet Adjust input current IADJ versus junction temperature Tj 22 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Block description and electrical characteristics 4.12 Functional description power good output The power good output PG indicates an overvoltage or undervoltage condition of the tracker output. For this the device compares the output voltage VOUT to the reference voltage VADJ. The device indicates variations of the output voltage beyond the power good switching thresholds by a "low" signal at the power good output PG. Transients shorter than the power good reaction time tPG,r do not trigger the power good output. The power good release delay time tPG,r allows a microcontroller and an oscillator to start up. The power good release delay time is the time period from exceeding the power good switching thresholds until the device switches the power good output from "low" to "high". The power good output PG is an open drain output that requires a pull-up resistor to a positive voltage rail. The pull-up voltage must maintain the absolute maximum ratings of power good PG, see Absolute maximum ratings. 4.13 Electrical characteristics power good output Table 8 Electrical characteristics power good output VIN = 13.5 V; VADJ ≥ 2.0 V; VEN ≥ 2.0 V; Tj = -40°C to 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Parameter Symbol Values Min. Typ. Unit Note or condition Number Max. Power good switching threshold, undervoltage VOUT,UV VADJ 120 VADJ 70 VADJ 50 mV VOUT decreasing; VIN ≥ VADJ + 150 mV P_4.9.1 Power good switching threshold, overvoltage VOUT,OV VADJ + 50 VADJ + 70 VADJ + 120 mV VOUT increasing; VIN ≥ VADJ + 150 mV P_4.9.2 Power good reaction time tPG,r 10 15 30 µs – P_4.9.3 Power good release delay time tPG,rd 140 250 650 µs – P_4.9.4 Power good output low voltage VPG,low – 0.2 0.4 V VIN ≥ 4 V; IPG,ext ≤ 1.8 mA P_4.9.5 Power good output external input current IPG,ext – – 1.8 mA VPG ≤ 0.4 V P_4.9.6 Power good output leakage current IPG,leak – 0 2 µA VOUT = VADJ; VPG = 5 V P_4.9.7 Target datasheet 23 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Application information 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 VBAT I D1 Main regulator VDD Q GND Microcontroller I/O I/O RPG EN VREF CIN2 Figure 3 Note: ADJ PG TLS125D0 OUT IN CIN1 GND COUT e.g. off board loads, sensors Application diagram This figure is a simplified example of an application circuit. The function must be verified in the application. 5.2 Selection of external components 5.2.1 Input pin Figure 3 shows the 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. Target datasheet 24 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Application information Overvoltage suppression diode A suitably sized diode D1 suppresses high voltage beyond the maximum ratings of the circuit components and protects the device from damage due to overvoltage. 5.2.2 Output pin An output capacitor COUT is necessary for the stability of the voltage tracking regulator, see Functional range. The typical performance graph Output capacitor ESRCOUT versus output current IOUT shows the stable operation range of the device. In an automotive environment, ceramic capacitors with X5R or X7R dielectrics are recommended. Place COUT on the same side of the PCB as the device and as close as possible to both the OUT pin and GND pin. In case of rapid transients of the input voltage or of the load current, COUT must be dimensioned properly to ensure the output stability in the application. 5.2.3 Adjust pin Figure 3 shows a typical adjust circuitry for a voltage tracking regulator. Typically the adjust pin is connected to a fixed voltage reference that the regulator tracks. In the example of the application diagram ADJ is connected to the supply voltage of a microcontroller. Alternatively, the voltage reference can also be adjusted by a voltage divider. 5.2.4 Power good pin The power good output is an open drain output, which requires a pull-up resistor to a positive voltage rail. The pull-up voltage must maintain the maximum ratings in Absolute maximum ratings. The example in Figure 3 uses the supply voltage VDD of a microcontroller as pull-up. To limit the external input current according to the requirement in Functional description power good output), the pull-up resistor must be sized depending on the pull-up voltage. 5.3 Thermal considerations From the known input voltage, the output voltage and the load profile of the application, the total power dissipation can be calculated: PD = V IN − V OUT × I OUT + V IN × I q 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: Target datasheet 25 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Application information RthJA, max = Equation 2 T j, max − Ta PD with • Tj,max: maximum allowed junction temperature • 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 Thermal resistance. Example Application conditions: VIN = 13.5 V VOUT = VADJ = 5 V IOUT = 100 mA Ta = 75°C Calculation of RthJA,max: PD = V IN − V OUT × I OUT + V IN × I q = 13.5 V − 5 V × 100 mA + 13.5 V × 3.5 mA = 0.897 W Equation 3 RthJA, max = T j,max − Ta PD Equation 4 = 150°C − 75°C 0.897 W = 83.6 K/W As a result, the PCB design must ensure a thermal resistance RthJA lower than 83.6 K/W. According to Thermal resistance, at least 300 mm² heatsink area is required on the FR4 1s0p PCB, or the FR4 2s2p board can be used. 5.4 • Further application information For further information you may contact http://www.infineon.com/ Target datasheet 26 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Package information 2x 0.1 C D 2x 0.35x45° 0.64±0.25 Seating Plane 0.08 C Coplanarity 1.27 D 6±0.2 A 0.2 8° MAX. 0.1 C A-B 1) 3.9±0.1 0.19+0.06 (1.45) 1) 4.9±0.1 1.7 Max. Package information 0..0.1 Stand Off 6 D 8x Bottom View 5 5 8 1 4 4 1 2.65±0.2 8 B Index Marking 0.41±0.09 3±0.2 2) 0.2 C A-B D 8x 1) Does not include plastic or metal protrusion of 0.15max. per side 2) Dambar protrusion shall be maximum 0.1mm total in excess of lead width All dimensions are in units mm The drawing is in compliance with ISO 128-30, Projection Method 1 [ Figure 4 ] PG-DSO-8 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 (Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). Information on alternative packages Please visit www.infineon.com/packages. Target datasheet 27 Rev. 1.02 2021-06-10 OPTIREG™ linear voltage regulator TLS125D0EJ High-precision voltage tracker Revision history Revision history Revision Date Changes 1.02 2021-06-10 Datasheet updated: • Editorial changes 1.01 2021-05-28 Datasheet updated: • Editorial changes 1.0 2020-08-28 Datasheet created Target datasheet 28 Rev. 1.02 2021-06-10 Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2021-06-10 Published by Infineon Technologies AG 81726 Munich, Germany © 2021 Infineon Technologies AG All Rights Reserved. Do you have a question about any aspect of this document? Email: erratum@infineon.com Document reference IFX-Z8F60085909 IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). 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