MYTNA1R86RELA2RA

MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Product Description The MYTNA1R86RELA2RA is miniature UltraBK™ called “Ultra Block”, an ultra-thin high efficiency integrated power solution that combines a 6A DC/DC converter with components. This totally integrated module provides up to 90.0% efficiency in a small and thin 10.5 x 9.0 x 2.1mm LGA package. Murata’s easy-to-use module terminal design allows simple power layout and maximum efficiency by minimizing routing parasitic resistance. Efficiency Ta= 25degC, VIN=12V, VOUT=1.8V Wide input voltage 6.0 to 14.4V Settable output voltage 0.7 to 1.8V Efficiency up to 90.0% Up to 87.5% Efficiency with 12VIN/1.8VOUT/6A ■ Up to 6A ■ Ultra-thin/small 10.5 x 9.0 x 2.1mm LGA package ■ Suitable to be placed on the back side of PCB ■ ■ ■ Features ■ ■ ■ ■ Power good output Over-current and Over-temperature protection Remote on/off control Output voltage sense Figure 1. Efficiency Plot Typical Applications ■ ■ ■ ■ ■ PCIe / server applications FPGA and DSP Datacom / telecom systems Distributed bus architectures (DBA) Programmable logic and mixed voltage systems Simplified Application Circuit Figure 2. Simplified Circuit Diagram http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 1 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Product Description ...........................................................1 Features ...........................................................................1 Typical Applications ...........................................................1 Efficiency .........................................................................1 Simplified Application Circuit ..............................................1 Performance Specifications Summary ..................................3 Part Number Structure ........................................................3 Revision History ............................................................. 26 Notices .......................................................................... 27 Scope .............................................................................................................. 27 Limitation of Applications ................................................................................ 27 Fail-Safe Function........................................................................................... 28 Product Specification ...................................................................................... 28 Contact form ................................................................................................... 28 Disclaimers .................................................................... 29 Patent Statement ............................................................................................ 29 Copyright and Trademark ............................................................................... 29 Absolute Maximum Ratings .................................................4 Recommended Operating Conditions ...................................4 Package Thermal Characteristics .........................................4 Electrical Characteristics ....................................................5 Pin Configuration...............................................................7 Pin Descriptions ................................................................7 Functional Block Diagram ...................................................8 Typical Performance Characteristics ....................................9 Thermal Deratings (Reference Data) ...................................10 Output Voltage Range ......................................................10 Limitation of Input Voltage Slew rate...................................11 Detailed Description .........................................................12 Output Voltage Adjustment ............................................................................. 12 Resistor Trim Equation.................................................................................... 12 Output Voltage Remote Sense Function ........................................................ 12 Remote Enable Function ................................................................................ 13 Soft Start Function .......................................................................................... 13 Power Good Operation ................................................................................... 13 Protections ...................................................................................................... 13 Over Current Protection and Short Circuit Protection..................................... 14 Over Temperature Protection ......................................................................... 14 Soldering Guidelines .................................................15 Pb-free Solder Processes ............................................................................ 15 Dry Pack Information ........................................................15 Application Performance ...........................................16 Transient Performance .....................................................19 Test Circuit .....................................................................19 Component Selection .......................................................20 Input Fuse ....................................................................................................... 20 Input Capacitor ................................................................................................ 20 Output Capacitor ............................................................................................. 20 Packaging Information......................................................21 Moisture Sensitivity Level ............................................................................... 21 Package Drawing ............................................................................................ 21 Recommended Board Land Pattern (Top View)............................................. 21 Top Marking Specification ............................................................................... 22 Application Circuit Part List (Recommended) .......................22 Application Board Example ...............................................23 Tape and Reel Specification ..............................................24 Order Codes ...................................................................25 http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 2 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Performance Specifications Summary Table 1. Performance Specifications Summary OUTPUT PART NUMBER MYTNA1R86RELA2RA INPUT VOUT [V) (max.) Power [W] R/N (typ.) [% of VOUT] Line [%] Load [%] 0.71.8 6 10.8 1 ±1 ±1 IOUT [A] Regulation VIN (typ.) [V] Range [V] 12 6.0-14.4 PACKAGE Iin no load [mA] 25 Iin full load [A] 1.9 Efficiency [%] ON/OFF 87.5 Yes (Positive) [mm] 10.5 x 9.0 x 2.1 1.All specifications are at typical line voltage, VOUT = 1.8V and full load, +25degC unless otherwise noted. Output capacitors are 100uF x 2 ceramic. Input capacitor is 1000uF electrolysis capacitor. See detailed specifications. Input and Output capacitors are necessary for our test equipment. 2.Use adequate ground plane and copper thickness adjacent to the converter. Part Number Structure MY TNA 1R8 Table 2. Part Number Structure 6R E L A 2 Murata products Series Name Maximum Output Current 6R : 6A Maximum Output Voltage 1R8 : (0.7-1.8V) Internal Code Maximum Height 2.1mm R A D Packaging Code Internal Code Blank : Standard Quantity D:small Quantity Input Voltage Range Maximum Side Size Internal Code E : 6.0-14.4V A : 10~11mm http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 3 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Absolute Maximum Ratings(1)(2) Table 3. Absolute Maximum Ratings PARAMETER VIN, ON/OFF Pin(3) Trim(4), POK Pin Storage Temperature Soldering / Reflow temperature(5) Maximum Number of Reflows Allowed(5) ESD Tolerance, HBM(6) MIN -0.3 -0.3 -40 - MAX 16 5.5 125 260 2 1000 UNITS V V degC degC V Notes: (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specification are not implied. Exposure to absolute maximum rating conditions for extended periods may extremely reduce device reliability. (2) All voltages are with respect to GND plane. (3) Do NOT exceed more than 0.3V from Vin voltage. (4) The Trim pin is designed to be connected to GND via a resistor. (5) Recommended Reflow profile is written in “Soldering Guidelines”. (6) Human body model, per the JEDEC standard JS-001-2012. Recommended Operating Conditions(1) Table 4. Recommended Operating Conditions Input Voltage Range Ambient Temperature(2) Junction Temperature Load Current PARAMETER MIN 6.0 -40 -40 0 MAX 14.4 105 120 6 UNITS V degC degC A Notes: (1) (2) This module should be operated inside the recommended operating conditions. This module has been designed and tested on the assumption that it will be used under the recommended operating conditions. Operating in not recommended condition may reduce reliability of the module. See the temperature derating curves in the thermal deratings. However, do not condensate. Package Thermal Characteristics(1)(2) Table 5. Package Thermal Characteristics Θjcb-1 Θjcb-2 Θjct-1 Θjct-2 Θja PARAMETER Junction-case-bottom at heat Junction1 Junction-case-bottom at heat Junction2 Junction-case-top at heat Junction1 Junction-case-top at heat Junction2 Junction-air TYPICAL 10.0 47.3 64.9 53.7 19.9 UNITS degC/W degC/W degC/W degC/W degC/W Notes: (1) Package thermal characteristics and performance are acquired and reported in according to the JEDEC standard JESD51-12. See “Fig.34” below for more information on our measurement conditions. (2) Junction thermal resistance is a function not only of the internal parts, but it is also extremely sensitive to the environment which includes, but is not limited to, board thickness, number of layers, copper weight / routes, and air flow. Attention to the board layout is necessary to realize expected thermal performance. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 4 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Electrical Characteristics VIN=12V, VOUT=1.8V, IOUT=6A, Ta=+25degC, unless otherwise noted. The Electrical Characteristics table is based on the test circuit in Figure 29. Table 6. Electrical Characteristics PARAMETER SYMBOL INPUT SUPPLY Input Voltage(1) VIN Input Voltage Start-up VIN_SR Slew rate(3) VIN Under Voltage Lockout VIN_UVH Threshold - VIN rising(3) VIN Under Voltage Lockout VIN_UVL Threshold - VIN falling(3) VIN Under Voltage Lockout VIN_UVHYS Hysteresis VIN Current Supply, Switching IIN_SW VIN Current Supply, Shutdown IIN_SD Remote ON/OFF Control (ON/OFF Pin) Threshold High(3) VTH_ENH Threshold Low(3) VTH_ENL ON/OFF Pin Leakage Current(3) ILK_EN CONVERTER Efficiency Charge Pump Switching Frequency Buck Converter Switching Frequency Start-up Time (Vin ON) Start-up Time (Remote ON) POWER GOOD (POK Pin) POK Sink Current(3) POK Pin Leakage Current(3) EFF TSTART_UP ILPG POK & Output Under-Voltage POK & Output Over-Voltage THERMAL SHUTDOWN Thermal Shutdown Threshold Thermal Shutdown Hysteresis OUTPUT Output Voltage(4) TOTPTH TOTPHYS VOUT Output Voltage Accuracy(1)(5) Feedback Voltage Temperature variation(3) VFB VOUT_TEMP Total Output Voltage Accuracy(3) VOUT_ACC Output Current(1) Current Limit Inception IOUT CONDITIONS MIN TYPICAL MAX UNITS 6 12 14.4 V Note(2) - 150 V/ms - - 5.45 V 4.5 - - V - 215 - mV - 25 160 - mA uA 1.1 - - V - - 0.4 V - - 200 uA - 87.5 - % - 85.5 - % Per a phase. - 500 - kHz Per a phase. - 1000 - kHz VOUT=5 to 95% of VOUT VOUT=5 to 95% of VOUT - 4 4 - ms ms POK=0.4V POK=5V, POK=High VOUT falling (fault) VOUT rising (good) VOUT rising (fault) VOUT falling (good) 4 - 90 95 110 105 1 - mA uA Shutdown operating - 150 20 - degC degC 9.6 ≤ VIN ≤ 14.4V 7.0 ≤ VIN ≤ 14.4V 6.0 ≤ VIN ≤ 14.4V 6.0 ≤ VIN ≤ 14.4V 0.7 ≤ VOUT ≤ 1.8V(4) 0 ≤ IOUT ≤ 6A 0.7 0.7 0.7 - 1.8 1.35 1.0 V V V -3 - +3 % -40 ≤ Ta ≤ 105degC 0.7 ≤ VOUT ≤ 1.8V(4) 0 ≤ IOUT ≤ 6A -40 ≤ Ta ≤ 105degC - 0.597 1 - V % -3 - +3 % 0 - 11 6 - A A No Load VOUT=0V, ON/OFF=0V Logic ON by pull-up or open of ON/OFF Pin Logic OFF by pull-down of ON/OFF Pin VIN=14.4V, ON/OFF=0V, From Vin to ON/OFF VIN=12.0V, VOUT=1.8V, IOUT=6A VIN=12.0V, VOUT=1.2V, IOUT=6A % of VOUT http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 5 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module VIN=12V, VOUT=1.8V, IOUT=6A, Ta=+25degC, unless otherwise noted. The Electrical Characteristics table is based on the test circuit in Figure 29. PARAMETER Current Limit Method Line Regulation(3)(5) Load Regulation(3)(5) Dynamic Load Peak Deviation Table 6. Electrical Characteristics SYMBOL VOUT_LINE VOUT_LOAD VOUT_DYN Ripple and Noise(3)(5) (20MHz bandwidth) VRIP External Output Capacitance Range(3) COUT CONDITIONS VIN=min. to max. IOUT=min. to max. IOUT=50-100%, SR=1.0A/µs 6.0 ≤ VIN ≤ 14.4V 0.7 ≤ VOUT ≤ 1.8V(4) 0 ≤ IOUT ≤ 6A VIN=12.0V 0.7 ≤ VOUT ≤ 1.8V(4) IOUT=6A MIN MAX UNITS -1 -1 - TYPICAL Hiccup ±3.0 +1 +1 - % % % - - 40 mV pk-pk - 1 - % of VOUT 200 - 2000 uF Notes: (1) Min/Max specifications are 100% production tested at Ta=25degC, unless otherwise noted. Limits over the operating range are guaranteed by design. (2) See the section of “Limitation of Input Voltage slew rate”. (3) Guaranteed by design. (4) See the Output Voltage Range of fig.9. (5) Only statics state. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 6 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Pin Configuration A B C D E F G H 1 2 3 4 5 6 Figure 3. Module Terminal (Top View) Pin Descriptions PIN NO. A1-3, B2, B3 A4-6, B4-6, C2-5, D2-5, E2-5, F2-5, G1-3, H1-3 Table 7. Pin Descriptions NAME Vin GND B1 ON/OFF C1 POK C6, D6, E6, F6, G6 DNC D1 Trim E1 AGND F1 +Sense G4-5, H4-6 Vout DESCRIPTION Input Voltage pins. Apply input voltage between these pins and GND pins. Ground pins. Connect to the GND plane. Remote ON/OFF pin. This pin is connected to Vin through the internal resistance. Power Good pin. The function is operated by internal open-drain FET. Do not connect pins. Those pins must be left floating individually. Trimming pin. Connect to the resistor to adjust to the target output voltage. Analog ground pin. Connect to trimming Resistor. Output Voltage Sensing pin. Connect to an output near the load to improve load regulation. This pin must be connected to output near the load, or at the module pins. Output pins. Connect the output load between these pins and Ground pins. Place external bypass capacitors as close as possible to these pins to reduce parasitic inductance. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 7 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Functional Block Diagram Figure 4. Functional Block Diagram http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 8 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Typical Performance Characteristics (VIN = 12V Ta = 25degC) Figure 5. Efficiency vs. Load Current and Output Voltage (COUT = 200uF, ScopeBW = 20MHz) Figure 6. Output Ripple vs. Load Current and Output Voltage Figure 7. Power Dissipation vs. Load Current and Output Voltage http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 9 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Thermal Deratings (Reference Data) (VIN = 12V) Figure 8. Thermal Deratings Thermal deratings are evaluated in following condition. ・The product is mounted on 114.5 x 101.5 x 1.6mm (Layer1, 4: 2oz Layer2, 3: 1oz copper) FR-4 board. ・No forced air flow. Surface temperature of the product: 118.7degC max. Output Voltage Range Figure 9. Output Voltage Range http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 10 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Limitation of Input Voltage Slew rate When starting the module with ramping Input Voltage up, the slew rate of the ramping should be managed for the proper operation. If Input Voltage ramping up is too steep, it would cause charge injection to the internal nodes via parasitic. The maximum slew rate of the Input Voltage ramp up when booting the module with Input Voltage is specified on the table 6 "Electronic Characteristics". Similarly, if the VIN slew late is too low compare with VOUT slew rate, it could prevent expected start-up behavior. To avoid hitting the maximum duty cycle operation, the VIN slew rate should satisfy the equation of (eq.1). As a reference, estimated value of the slew rate and start-up time for each output voltage is written in the follow table. VINSR_L is minimum of input voltage start-up slew rate. VINSR_L [V/ms]≧0.2×VOUT[V]-0.1 (eq.1) Table 8. Minimum Input Voltage Start-Up Slew Rate and Start-Up Time CALCULATION EXAMPLE OUTPUT VOLTAGE [V] VINSR_L [V/ms] 1.8 1.2 1.0 0.26 0.14 0.1 VIN RISE TIME [ms] (0V to 12V) 46.2 85.7 120 http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 11 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Detailed Description The MYTNA1R86RELA2RA is a two-stage DCDC converter that is composed of a dual-phase charge pumpbased DCDC converter and a dual-phase synchronous buck DCDC converter. The output voltage range supported from 0.7 to 1.8V (The output voltage range depend on the input voltage.) with load currents of up to 6A and up to 10.8W delivered to the external load. This module isn’t designed for the parallel operation. Output Voltage Adjustment The output voltage may be adjusted over a limited range by connecting an external trim resistor (Rtrim) between the Trim pin and AGND pin. The Rtrim must be a 1/10W (or larger) precision metal film type,±0.5% accuracy (or better) with low temperature coefficient, ±100 ppm/degC (or better). Mount the resistor close to the converter with very short leads or use a surface mount trim resistor. Also, avoid high noise at the trim pin. However, to prevent instability, you should never connect any capacitors between trim pin and GND pin. And do not connect any additional components between the Trim pin and Vout pin or between the Trim and +Sense pin. Use only the specified connections. Resistor Trim Equation Rtrim[kohm]=0.7164/(VOUT-0.597) (eq.2) The equations above are only reference, so please be sure to check the output voltage and adjust Rtrim in user circumstances. To increase or decrease the output voltage, increase or decrease the Rtrim value. In the table below, the estimated resistance is given at limited condition. Do not exceed the specified limits of the output voltage range restricted by input voltage or the converter’s maximum power rating when applying these resistors. Table 9. Output Voltage and Rtrim Value OUTPUT VOLTAGE [V] 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.35 1.40 1.50 1.60 1.70 1.80 CALCULATED [OHM] 6955.3 3529.1 23644 1777.7 1424.3 1188.1 1019.1 951.4 892.2 793.4 714.3 649.5 595.5 EXAMPLE OF Rtrim [OHM] （E24 RESISTOR VAULE） 6.8k+160 3.3k+220 2.2k+160 1.6k+180 1.3k+120 680+510 510+510 820+130 560+330 750+43 680+33 620+30 560+36 Output Voltage Remote Sense Function The MYTNA1R86RELA2RA has a sense pin, +Sense, for this function. The function is capable of compensating for the voltage drop in the wiring by connecting the sense pin to the load point. The upper limit of the compensating by sense function depends on the maximum voltage allowed to the Vout pin (within range of the Output Voltage Accuracy). The sense trace should be as short as possible and shielded by the GND line or something else to reduce noise susceptibility. The recommended sense line length is within 10cm for output voltage stability. Do NOT connect sense pin to the output of the additional LC filter that sits between the Vout pin and +Sense pin. If the remote sense is not needed, the +Sense pin should be shorted to the Vout pin. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 12 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Remote Enable Function The MYTNA1R86RELA2RA has an enable input pin, ON/OFF, which is designed to be compatible with the low voltage digital I/O levels so that it can be easily driven by an external controller. The ON/OFF pin logic is high active and connected to the VIN though internal resistors. So if external power sequencing or control is not required, the ON/OFF pin can be left open. Soft Start Function The MYTNA1R86RELA2RA has a soft start function. This function suppresses the inrush current and the output voltage overshoot. When the function is operating, the converter is controlled in discontinuous current mode (DCM), so the output ripple voltage may be larger than steady-state behavior which is in continuous current mode (CCM). If the input voltage drops and the operating condition deviates from the supported operation range of fig.9 “Output Voltage Range”, you should discharge the input voltage below the VIN_UVL and then restart. This soft start function is also compatible with pre-bias start-up. However the converter cannot prevent reverse current except during soft start, so the output must NOT be connected to a circuit that has a voltage higher than the output voltage setting. Power Good Operation MYTNA1R86RELA2RA has an open-drain “power good” pin, POK. The POK pin must be pulled up externally, though a resistor to a voltage of ≦5.5V. MYTNA1R86RELA2RA will hold the POK pin low during soft start, the VOUT is outside of the regulation or when the fault condition is detected and being handled. Please note that the power good function will not work when the module is inactive. Therefore, the POK pin will be high impedance when the VIN is below the VIN_UVH or the module disabled. The power good function is activated after soft start has finished. If the VOUT becomes within +5 to –5% of the target value, internal comparators detect the power good state and the power good signal becomes high. After that, if the VOUT rises outside of +10% or falls outside of –10% of the target value, the power good signal becomes low. The power good function is a flag that indicates the output voltage status and internal protection status. If the POK pin isn’t high for a long time from start-up, there are some abnormal situation occur in inside the module or external environment. So, we recommend monitoring the POK pin, and reset the module and the output load in abnormal. Protections MYTNA1R86RELA2RA provides extensive and robust protection against input and output faults and overtemperature conditions, as summarized in the following table. Table 10. Fault Protection Detection Time and Responses FAULT MODE VIN Under-Voltage PROTECTION Under voltage Lock out Over Load Over current protection Output Short Short circuit protection Over Temperature Over temperature protection FAULT RESPONSE Power-on reset POK de-asserted; Enter hiccup mode POK de-asserted; Enter hiccup mode POK de-asserted; Enter hiccup mode FAULT DETECTION TIME Immediate (VIN falling) 1ms Immediate 160µs The protection does not guarantee the module operation within the recommended operating conditions. Even if the protection is operating, it may exceed the conditions, and thus may reduce the reliability of the module. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 13 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Over Current Protection and Short Circuit Protection MYTNA1R86RELA2RA provides output over current protection and short circuit protection for load fault. When the converter load current exceeds the over current threshold for the detection time, the converter output is shut down. Following the shutdown, the converter periodically tries to recover by the startup sequence. This mode is called “hiccup” mode and continues until the load current decreases to under the over current threshold. When hiccup mode releases, the converter returns to normal operation. Short circuit protection is incorporated for times when more rapidly shutdown is needed as output short. When the converter load current exceeds the short circuit threshold, the converter shuts down immediately and operates in hiccup mode until the load current decreases to under the short circuit threshold. When the hiccup mode releases, the converter returns to normal operation. Over Temperature Protection MYTNA1R86RELA2RA includes an integrated temperature sensor to protect the system from overheating. Once the converter detects over temperature longer than 160µsec, the output is turned off to reduce the power dissipation of the module. When the temperature drops below the hysteresis limit, the output is turned on again. If the underlying cause of the over-temperature fault is not cleared, the system enters into hiccup mode until the fault condition is removed. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 14 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Soldering Guidelines Murata recommends the specifications below when installing this converter. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ, therefore, thoroughly review these guidelines with your process engineers. Table 11. Reflow Guidelines for Sn/Ag/Cu solders and Sn/Pb solders REFLOW SOLDER OPETRATIONS FOR SURFACE MOUNT PRODUCTS For Sn/Ag/Cu based solders: Preheat Temperature Time over Liquidus Maximum Peak Temperature Cooling Rate For Sn/Pb based solder: Preheat Temperature Time over Liquidus Maximum Peak Temperature Cooling Rate Less than 1degC per second 45 to 75 seconds 260degC Less than 3degC per second Less than 1degC per second 60 to 75 seconds 235degC Less than 3degC per second Figure 10. Reflow Profile for Sn/Ag/Cu Solder Pb-free Solder Processes For Pb-free solder processes, the product is qualified for MSL 3 according to IPC/JEDEC standard J-STD-020C. During reflow, the module must not exceed 260degC at any time. Dry Pack Information Products intended for Pb-free reflow soldering processes are delivered in standard moisture barrier bags according to IPC/JEDEC standard J-STD-033. (Handling, Packing, Shipping and Use of Moisture, Reflow, and Process Sensitivity Devices). Using products in high temperature Pb-free soldering processes requires dry pack storage and handling. In case the products have been stored in an uncontrolled environment and no longer can be considered dry, the products must be baked according to J-STD-033. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 15 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Application Performance The Application Performance data is reference and based on the Application Board in Figure 34. Ta=25degC, No forced air flow, unless otherwise noted. VOUT=1.8V Figure 11. Efficiency vs. Load Current and Line Voltage Figure 12. VOUT vs. Load Current and Line Voltage 4ms/div VIN, 10V/div VOUT, 500mV/div ON/OFF, 20V/div POK, 10V/div (VIN = 12V, lOUT = 6A) Figure 13. On/Off Enable wave form (COUT = 200uF, ScopeBW = 20MHz) Figure 14. Output Ripple and Noise 50us/div 50us/div VOUT, 50mV/div VOUT, 50mV/div IOUT, 3A/div IOUT, 3A/div (VIN = 12V, COUT = 200uF, IOUT = 3 to 6A, 1.0A/us) Figure 15. Step Load Transient Response (VIN = 12V, COUT = 200uF, IOUT = 6 to 3A, 1.0A/us) Figure 16. Step Load Transient Response http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 16 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module VOUT=1.2V Figure 17. Efficiency vs. Load Current and Line Voltage Figure 18. VOUT vs. Load Current and Line Voltage 4mS/div VIN, 10Vdiv VOUT, 400mV/div ON/OFF, 20V/div POK, 10V/div (VIN = 12V, IOUT = 6A) Figure 19. On/Off Enable wave form (COUT = 200uF, Scope BW =20MHz) Figure 20. Output Ripple and Noise 50us/div 50us/div VOUT, 40mV/div VOUT, 40mV/div IOUT, 3A/div IOUT, 3A/div (VIN = 12V, COUT = 200uF, IOUT = 3 to 6A, 1.0A/us) Figure 21. Step Load Transient Response (VIN = 12V, COUT = 200uF, IOUT = 6 to 3A, 1.0A/us) Figure 22. Step Load Transient Response http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 17 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module VOUT=0.7V Figure 23. Efficiency vs. Load Current and Line Voltage Figure 24. VOUT vs. Load Current and Line Voltage 4mS/div VIN, 10Vdiv VOUT, 200mV/div ON/OFF, 20V/div POK, 10V/div (VIN = 12V, IOUT = 6A) Figure 25. On/Off Enable wave form (COUT = 200uF, ScopeBW = 20MHz) Figure 26. Output Ripple and Noise 50us/div VOUT, 20mV/div 50us/div VOUT, 20mV/div IOUT, 3A/div IOUT, 3A/div (VIN = 12V, COUT = 200uF, IOUT = 3 to 6A, 1.0A/us) Figure 27. Step Load Transient Response (VIN = 12V, COUT = 200uF, IOUT = 6 to 3A, 1.0A/us) Figure 28. Step Load Transient Response http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 18 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Transient Performance Table 12. Transient Performance and Conditions VOUT [V] VIN [V] COUT [uF] 1.8 1.2 0.7 12 200 VOLTAGE DEVIATION [mV] 3A-6A LOAD STEP (1A/us) 42.0 29.4 19.2 Test Circuit Figure 29. Test Circuit REFERENCE C1 C2 R1 VIN RL Oscilloscope Terminator VALUE 1000uF 100uF x 2pcs 100kohm - Table 13. Test Circuit Parts and Equipments List DESCRIPTION Electrolysis Capacitor CAP/CER/100uF/4V/X7U/3216M/20% 1/10W/5% DC Power Supply Electronic Load Device Digital Oscilloscope Terminator PART AND EQUIPMENT GRM31CE70G107MEA8 (Murata) ELL-355(KeisokuGiken) DPO5034 or TDS5034(Tektronix) TRC-50F2(KeisokuGiken) http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 19 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Component Selection Users of MYTNA1R86RELA2RA should adhere closely to the parts selected for the reference design bill of materials (BOM). Component selection is a complex process, and several parameters of importance to the design are not typically specified for passive components. Users wishing to deviate from these components are urged to contact Murata for guidance. Input Fuse Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Normally, the fuse should be inserted on the primary side input supply line. For greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line of this module too. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard. Input Capacitor In general input environment (there are sufficient consideration about parasitic impedance and stability.), MYTNA1R86RELA2RA does not need an external input capacitor. If you want to reduce the ripple on input more, you can add the external input capacitor. The input capacitor should be placed as close to the module as possible to reduce any parasitic inductance effects. The voltage rating of the capacitor needs to be as high as the absolute maximum voltage rating for the system. The capacitor has voltage coefficient of capacitance, so you should be determine the rated value of capacitor that is taken into account the effective capacitance value at the applied VIN. Output Capacitor We recommend a low-ESR ceramic (Murata GRM31 series) capacitor for output. The ceramic type capacitor may be tried using either single or multiple capacitors in parallel. The converter will achieve its rated output ripple and noise with additional external capacitor. The user may install more external output capacitance to reduce the ripple even further or for improved dynamic response. These capacitors should be placed as closely as possible to the converter, and the output ripple measured under your load conditions. Use only as much capacitance as required to achieve your ripple and noise objectives. Excessive capacitance can make step load recovery sluggish or possibly introduce instability or start-up failure. Do not exceed the maximum rated output capacitance listed in the specifications. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 20 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Packaging Information This section provides packaging data including the moisture sensitivity level, package drawing, package marking and tape-and-reel information. Moisture Sensitivity Level The moisture sensitivity level rating for the MYTNA1R86RELA2RA in the 10.5 x 9.0 x 2.1mm LGA package is MSL3. Package Drawing Figure 30. Package Outline Drawing Recommended Board Land Pattern (Top View) Figure 31. Recommended Board Land Pattern (Top View) http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 21 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Top Marking Specification CODES TNA DESCRIPTION Pin 1 Marking TNA1R86RELA2 1R86RE Product code (Please see product code table beside) Internal manufacturing code PART NUMBER MYTNA1R86RELA2RA PRODUCT CODE TNA1R86RELA2 LA2 Figure 32. Top Marking Specification Application Circuit Figure 33. Application Schematic Application Circuit Part List (Recommended) REFERENCE VALUE Table 14. Application Circuit Part List DESCRIPTION PART NUMBER C1 1000uF Electrolysis Capacitor (Optional)(1) C2 100uF x 2pcs CAP/CER/100uF/4V/X7U/1206/20% GRM31CE70G107MEA8 (Murata) Rtrim Chip resistor/1/10W/0.5% RK73G1ETTP***D(KOA) (1) If there is a non-negligible parasitic impedance between the power supply and the converter, such as during evaluation, the optional input capacitor "C1" may be required to reduce the impedance. The recommended optional capacitor is an example. Please consider the optimum value for the case. This capacitor is usually an aluminum electrolytic type. It isn't necessary to place the capacitor near the input terminal of the converter. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 22 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Application Board Example Figure 34. Applicatuin Board Example (Based on JEDEC standard) 114.5 x 101.5 x 1.6mm (4 Layer FR-4) Outside copper(1,4) layer = 2oz, Inner copper(2,3) layer = 1oz Figure 35. Land Pattern Example http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 23 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Tape and Reel Specification Tape Dimension Figure 36. Tape Dimension Reel Dimension 25.5±1.0 φ100±1 φ330±2 A 2.0±0.5 Indication φ21.0±0.8 φ13.0±0.5 Portion A Figure 37. Reel Dimension http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 24 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Device orientation in Tape Figure 38. Module Orientation in Tape Taping specification Figure 39. Taping Specification 1. The adhesive strength of the protective tape is within 0.3-1.0N. 2. Each reel contains 400 or 100pcs. 3. Each reel set in moisture-proof packaging because of MSL 3. 4. No vacant pocket in “Module on tape” section. 5. The reel is labeled with Murata part number and quantity. 6. The color of reel is not specified. Order Codes ORDER CODES MYTNA1R86RELA2RA MYTNA1R86RELA2RAD Table 15. Order Codes DESCRIPTION MYTNA1R86RELA2RA Buck Converter MYTNA1R86RELA2RA Buck Converter PACKAGING SHIPPING METHOD 10.5 x 9.0 x 2.1mm LGA 400 units/T&R 10.5 x 9.0 x 2.1mm LGA 100 units/T&R http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 25 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Revision History REV DATE A02 JUL-2023 A03 OCT-2023 DESCRIPTION Add Performance Specifications Summary Add Part Number Structure Add Scope Updated Limitation of Applications Add Fail-Safe function Update Top Marking Specification PAGE NUMBER P3 P3 P27 P27 P28 P22 http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 26 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Notices Scope This datasheet is applied to MYTNA1R86RELA2RA and MYTNA1R86RELA2RAD. - Specific applications: Consumer Electronics, Industrial Equipment CAUTION Limitation of Applications The products listed in the datasheet (hereinafter the product(s) is called the “Product(s)”) are designed and manufactured for applications specified in the specification or the datasheet. (hereinafter called the “Specific Application”). We shall not warrant anything in connection with the Products including fitness, performance, adequateness, safety, or quality, in the case of applications listed in from (1) to (11) written at the end of this precautions, which may generally require high performance, function, quality, management of production or safety. Therefore, the Product shall be applied in compliance with the specific application. We disclaim any loss and damages arising from or in connection with the products including but not limited to the case such loss and damages caused by the unexpected accident, in event that (i) the product is applied for the purpose which is not specified as the specific application for the product, and/or (ii) the product is applied for any following application purposes from (1) to (11) (except that such application purpose is unambiguously specified as specific application for the product in our catalog specification forms, datasheets, or other documents officially issued by us*). (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) Aircraft equipment Aerospace equipment Undersea equipment Power plant control equipment Medical equipment Transportation equipment (such as vehicles, trains, ships) Traffic control equipment Disaster prevention / crime prevention equipment Industrial data-processing equipment Combustion/explosion control equipment Application of similar complexity and/or reliability requirements to the applications listed in the above For exploring information of the Products which will be compatible with the particular purpose other than those specified in the datasheet, please contact our sales offices, distribution agents, or trading companies with which you make a deal, or via our web contact form. Contact form: https://www.murata.com/contactform *We may design and manufacture particular Products for applications listed in (1) to (11). Provided that, in such case we shall unambiguously specify such Specific Application in specification or datasheet without any exception. Therefore, any other documents and/or performances, whether exist or non-exist, shall not be deemed as the evidence to imply that we accept the applications listed in (1) to (11). http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 27 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Fail-Safe Function Be sure to add an appropriate fail-safe function to your finished product to prevent secondary damage in the unlikely event of an abnormality function or malfunction in our product. Please connect the input terminal by right polarity. If you mistake the connection, it may break the DCDC converter. In the case of destruction of the DC-DC converter inside, over input current may flow. Please add a diode and fuse as following to protect them. Please select diode and fuse after confirming the operation. Figure 40. Circuit example with a diode and fuse Note 1. Please make sure that your product has been evaluated in view of your specifications with our product being mounted to your product. 2. You are requested not to use our product deviating from the reference specifications. 3. If you have any concerns about materials other than those listed in the RoHS directive, please contact us. 4. Please don’t wash this product under any conditions. Product Specification Product Specification in this datasheet are as of October 2023. Specifications and features may change in any manner without notice. Please check with our sales representatives. Contact form https://www.murata.com/contactform?Product=Power%20Device http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 28 of 29 MYTNA1R86RELA2RA Document Category: Datasheet UltraBK™ 6A DC–DC Converter Module Disclaimers The information described in this datasheet was carefully crafted for accuracy. However this product is based on the assumption that it will be used after thoroughly verifying and confirming the characteristics and system compatibility. Therefore, Murata is not responsible for any damages caused by errors in the description of the datasheet. Murata constantly strives improve the quality and reliability of our products, but it is inevitable that semiconductor products will fail with a certain probability. Therefore regardless of whether the use conditions are within the range of this datasheet, Murata is not responsible for any damage caused by the failure of this product.,(for example, secondary damage, compensation for accidents, punitive damage, loss of opportunity, and etc.) Also, regardless of whether Murata can foresee the events caused by the failure of our product, Murata has no obligations or responsibilities. The buyer of this product and developer of systems incorporating this product must analyze, evaluate, and make judgements at their own risk in designing applications using this product. The buyer and the developer are responsible for verifying the safety of this product and the applications, and complying with all applicable laws, regulations, and other requirements. Furthermore, the buyer and developer are responsible for predicting hazards and taking adequate safeguards against potential events at your own risk in order to prevent personal accidents, fire accidents, or other social damage. When using this product, perform thorough evaluation and verification of the safety design designed at your own risk for this product and the application. Murata assumes that the buyer and developer have the expertise to verify all necessary issues for proper use of the product as described above and to take corrective action. Therefore, Murata has no liability arising out of the use of the product. The buyer and developer should take all necessary evaluations, verifications, corrective actions and etc., in your own responsibility and judgment. This datasheet does not guarantee or grant any license to the information, including patents, copyrights, and other intellectual property rights, of the Murata or third parties. Regardless of whether the information described in this datasheet is express or implied, Murata does not take any responsibility or liability for any claims, damages, costs, losses, etc. Relating to intellectual property rights or other rights from third parties due to the use of these information. This product has an original datasheet written in Japanese. If any uncertainties and/or suspicions arises about this English-language datasheet, all judgments will be based on the datasheet described in Japanese. Patent Statement Murata products are protected to one or more of the U.S. patents. Copyright and Trademark ©2023 Murata Manufacturing Co., Ltd. All rights reserved. ! This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy. Refer to: https://www.murata.com/products/power/requirements Murata Manufacturing Co., Ltd makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Spec and cautions are subject to change without notice. http://www.murata.com/products/power Copyright ©2023 Murata Manufacturing Co., Ltd. All rights reserved. Export Control Code : X0863 Document No :D90DH - 00061 MYTNA1R86RELA2RA A03 Page 29 of 29