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TPSM82866AA0SRDJR

TPSM82866AA0SRDJR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    PowerLFQFN23 模块

  • 描述:

    非隔离 PoL 模块 直流转换器 1 输出 0.6 ~ 5.5V 6A 2.4V - 5.5V 输入

  • 数据手册
  • 价格&库存
TPSM82866AA0SRDJR 数据手册
TPSM82864A, TPSM82866A SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 TPSM82864A, TPSM82866A 2.4-V to 5.5-V Input, 4-A/6-A Step-Down Power Module with an Integrated Inductor in a 3.5-mm × 4.0-mm Thin Overmolded QFN Package 1 Features 3 Description • • • • • • • • The TPSM8286xA device family consists of 4-A and 6-A step-down converter power modules optimized for small solution size and high efficiency. The power modules integrate a synchronous step-down converter and an inductor to simplify design, reduce external components, and save PCB area. The lowprofile and compact solution is suitable for automated assembly by standard surface mount equipment. 2 Applications • • • • • • Core supply for FPGAs, CPUs, ASICs Optical modules Medical imaging Industrial transport Factory automation and control Aerospace and defense Tight output voltage accuracy, even with small output capacitors, is achieved though the DCSControl architecture and its excellent load transient performance. At medium-to-heavy loads, the converter operates in PWM mode and automatically enters Power save mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation for the smallest output voltage ripple. The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft start reduces the inrush current required from the input supply. Overtemperature protection and hiccup short-circuit protection deliver a robust and reliable solution. Device Information PART NUMBER 4A TPSM82866A 6A (1) VIN 2.4 V to 5.5 V C1 22 µF EN VPG PG VSET/ MODE AGND PGND RDJ or RDM (B0QFN, 23) 3.50 mm × 4.00 mm 95 90 C2 2 × 22 µF or 1 × 47 µF VOS FB BODY SIZE (NOM) 100 VOUT R3 PACKAGE(1) For all available packages, see the orderable addendum at the end of the data sheet. VOUT 1.8 V VIN OUTPUT CURRENT TPSM82864A 85 Efficiency (%) • • • • • • • • • • • Up to 96% efficiency Excellent thermal performance CISPR-11 class-B compliant 1% output voltage accuracy DCS-Control topology for fast transient response 1.4-mm or 1.8-mm ultra-low profile QFN package 2.4-V to 5.5-V input voltage range Same device part number provides either: – 0.6-V to VIN adjustable output voltage – 13 integrated fixed output voltage options Power-good indicator with window comparator 2.4-MHz switching frequency Forced PWM or power save mode 4-µA operating quiescent current Output voltage discharge 100% duty cycle mode Hiccup short-circuit protection Thermal shutdown –40°C to 125°C operating temperature range 3.5-mm × 4.0-mm QFN package with 0.5-mm pitch 35-mm2 solution size 80 75 70 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 55 R4 133 kΩ 50 45 40 100u Typical Application Schematic – Fixed Output Voltage Option FPWM PSM 1m 10m 100m Output Current (A) 1 6 TPSM82866AA0HRDMR – Efficiency Versus Output Current; VIN = 5.0 V An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Device Options................................................................ 3 6 Pin Configuration and Functions...................................3 7 Specifications.................................................................. 4 7.1 Absolute Maximum Ratings........................................ 4 7.2 ESD Ratings............................................................... 4 7.3 Recommended Operating Conditions.........................4 7.4 Thermal Information....................................................5 7.5 Electrical Characteristics.............................................6 7.6 Typical Characteristics................................................ 7 8 Detailed Description........................................................8 8.1 Overview..................................................................... 8 8.2 Functional Block Diagram........................................... 8 8.3 Feature Description.....................................................8 8.4 Device Functional Modes..........................................12 9 Application and Implementation.................................. 14 9.1 Application Information............................................. 14 9.2 Typical Application.................................................... 14 9.3 Power Supply Recommendations.............................21 9.4 Layout....................................................................... 21 10 Device and Documentation Support..........................24 10.1 Device Support....................................................... 24 10.2 Documentation Support.......................................... 24 10.3 Receiving Notification of Documentation Updates..24 10.4 Support Resources................................................. 24 10.5 Trademarks............................................................. 24 10.6 Electrostatic Discharge Caution..............................24 10.7 Glossary..................................................................24 11 Mechanical, Packaging, and Orderable Information.................................................................... 24 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (December 2021) to Revision B (November 2022) Page • Added TPSM8286xAA0HRDM to the data sheet............................................................................................... 3 Changes from Revision * (September 2021) to Revision A (December 2021) Page • Changed document status from Advance Information to Production Data.........................................................1 2 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 5 Device Options ORDERABLE PART NUMBER DEVICE HEIGHT TPSM82864AA0SRDJR 1.4 mm TPSM82864AA0HRDMR 1.8 mm TPSM82866AA0SRDJR 1.4 mm TPSM82866AA0HRDMR 1.8 mm OUTPUT CURRENT 4A 6A 6 Pin Configuration and Functions VOUT 14 Exposed Thermal Pad 10 11 6 PGND PGND 6 5 PGND PGND 5 Exposed Thermal Pad VOUT 14 VOUT VOS PG PG 2 17 EN EN 1 22 21 20 19 PGND 1 VSET/MODE EN 22 VOUT 16 EN 21 15 3 PGND 2 20 4 VIN 17 19 PGND VIN VSET/MODE FB VIN VOS VIN PGND 3 PGND 4 16 PGND 15 AGND 13 23 VOUT 18 12 VOUT 23 AGND VOUT 9 18 FB AGND AGND 13 8 SW SW VOUT PGND 7 7 PGND 8 PGND 9 SW PGND 10 VOUT PGND PGND 11 SW PGND 12 BOTTOM VIEW PGND VOUT TOP VIEW Figure 6-1. TPSM82864A, TPSM82866A - QFN (23 Pin) Table 6-1. Pin Functions PIN TYPE(1) DESCRIPTION NAME NO. AGND 18 P Analog ground pin. Must be connected to a common GND plane. EN 1 I Device enable pin. To enable the device, this pin must be pulled high. Pulling this pin low disables the device. Do not leave floating. FB 17 I Voltage feedback input. Connect the output voltage resistor divider to this pin. When using a fixed output voltage, connect directly to VOUT. PG 2 O Power-good open-drain output pin. The pullup resistor can be connected to voltages up to 5.5 V. If unused, leave this pin floating. This pin is pulled to GND when the device is in shutdown. PGND 4, 5, 6, 8, 9, 10, 11, 19, 20 P Power ground pin. Must be connected to common GND plane. SW 7 O Switch pin of the power stage. This pin can be left floating. VIN 21, 22 P Power supply input voltage pin VOS 16 I Output voltage sense pin. This pin must be directly connected to the output capacitor. VOUT 12, 13, 14, 15 P Output voltage pin VSET/MODE 3 I Connecting a resistor to GND selects one of the fixed output voltages. Tying the pin high or low selects an adjustable output voltage. After the device has started up, the pin operates as a MODE input. Applying a high level selects forced PWM mode operation and a low level selects power save mode operation. Exposed Thermal Pad 23 P Internally connected to PGND. Must be soldered to achieve appropriate power dissipation and mechanical reliability. Must be connected to common GND plane. (1) I = Input, O = Output, P = Power Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 3 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 7 Specifications 7.1 Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted) (1) MIN Voltage(2) VIN, EN, VOS, FB, PG, VSET/MODE – 0.3 6 SW (DC), VOUT – 0.3 VIN + 0.3 – 2.5 10 SW (AC, less than 10ns)(3) ISINK_PG Sink current at PG TJ Junction temperature Tstg Storage temperature (1) (2) (3) MAX UNIT V 2 mA – 40 125 °C – 40 125 °C Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions. If used outside the Recommended Operating Conditions but within the Absolute Maximum Ratings, the device may not be fully functional, and this may affect device reliability, functionality, performance, and shorten the device lifetime. All voltage values are with respect to network ground terminal. While switching. 7.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 Charged-device model (CDM), per ANSI/ESDA/JEDEC JS-002(2) ±500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions MIN NOM UNIT Supply Voltage Range 2.4 5.5 VOUT Output Voltage Range 0.6 VIN V tF_VIN Falling transition time at VIN (1) 10 mV/µs Output current, TPSM82864A 4 Output current, TPSM82866A 6 IOUT Nominal resistance range for external voltage selection resistor (E96 resistor series) RVSET 10 External voltage selection resistor tolerance (1) Junction temperature 249 V A kΩ 1% External voltage selection resistor temperature coefficient TJ 4 MAX VIN – 40 ±200 ppm/°C 125 °C The falling slew rate of VIN should be limited if VIN goes below VUVLO (see Power Supply Recommendations). Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 7.4 Thermal Information TPSM8286x 23 PINS THERMAL METRIC(1) RθJA Junction-to-ambient thermal resistance UNIT RDM JEDEC 51-5 RDJ JEDEC 51-5 RDJ EVM RDM EVM 43.2 43.3 25.4 25.9 °C/W n/a(2) °C/W RθJC(top) Junction-to-case (top) thermal resistance 42.5 34.3 n/a(2) RθJB Junction-to-board thermal resistance 14.9 10.8 n/a(2) n/a(2) °C/W ΨJT Junction-to-top characterization parameter 6.8 3.6 2.4 3.7 °C/W ΨJB Junction-to-board characterization parameter 14.8 10.7 10.9 12.7 °C/W (1) (2) For more information about thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. Not applicable to an EVM. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 5 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 7.5 Electrical Characteristics TJ = -40 °C to 125 °C, and VIN = 2.4 V to 5.5 V. Typical values are at TJ = 25 °C and VIN = 5 V, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX 10 UNIT SUPPLY IQ_VIN Quiescent current into VIN pin EN = High, no load, device not switching 4 IQ_VOS Quiescent current into VOS pin EN = High, no load, device not switching, VVOS = 1.8 V 8 ISD Shutdown current EN = Low, TJ = -40℃ to 85℃ VUVLO Under voltage lock out threshold TJSD µA µA 0.24 1 µA VIN rising 2.2 2.3 2.4 V VIN falling 2.1 2.2 2.3 V Thermal shutdown threshold TJ rising 150 °C Thermal shutdown hysteresis TJ falling 20 °C LOGIC INTERFACE VIH High-level input threshold voltage at EN and VSET/MODE VIL Low-level input threshold voltage at EN and VSET/MODE IEN,LKG Input leakage current into EN pin 1.0 V 0.4 V 0.01 0.1 µA START-UP, POWER GOOD tDelay Enable delay time Time from EN high to device starts switching with a 249-kΩ resistor connected between VSET/ MODE and GND 420 650 1100 µs tRamp Output voltage ramp time Time from device starts switching to power good 0.8 1 1.5 ms VPG(low) Power good lower threshold VFB referenced to VFB(nominal) 85 91 96 % VPG(high) Power good upper threshold VFB referenced to VFB(nominal) 103 111 120 % VPG,OL Low-level output voltage Isink = 1 mA IPG,LKG Input leakage current into PG pin VPG = 5.0 V tPG,DLY Power good delay Rising and falling edges Output voltage accuracy Fixed voltage operation, FPWM, no load, TJ = 0°C to 85°C –1 1 % Fixed voltage operation, FPWM, no load –2 2 % 594 0.01 0.4 V 0.1 µA 34 µs OUTPUT VOUT VFB Feedback voltage Adjustable voltage operation 600 606 mV IFB,LKG Input leakage into FB pin Adjustable voltage operation, VFB = 0.6 V 0.01 0.4 µA RDIS Output discharge resistor at VOS pin 3.5 Ω VOUT = 1.2 V, FPWM 0.04 %/A Load regulation POWER SWITCH RDP Dropout resistance High-side FET forward current limit ILIM Low-side FET forward current limit TPSM8286xAA0SRDJ 100% mode. VIN = 3.3 V, TJ = 25°C 28 TPSM8286xAA0HRDM 100% mode. VIN = 3.3 V, TJ = 25°C 24 6 PWM switching frequency mΩ mΩ TPSM82864A 5 5.5 6 A TPSM82866A 7 7.9 8.5 A TPSM82864A 4.5 A TPSM82866A 6.5 A -3 A 2.4 MHz Low-side FET negative current limit fSW 35 IOUT = 1 A, VOUT = 1.2 V Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 7.6 Typical Characteristics 1.5 TJ = -40°C TJ = 25°C TJ = 85°C TJ = 125°C 9 8 7 6 5 1.1 0.9 0.7 0.5 0.3 4 3 2.4 TJ = -40°C TJ = 25°C TJ = 85°C TJ = 125°C 1.3 Shutdown current ISD (uA) Quiescent current I Q_VIN (uA) 10 2.8 3.2 3.6 4 4.4 Input Voltage (V) 4.8 5.2 0.1 2.4 5.5 Dropout Resistance R DP (mOhms) Output Discharge Resistance R DIS (Ohms) 8 7 6 5 4 3 2 2.4 2.8 3.2 3.6 4 4.4 Input Voltage (V) 4.8 5.2 3.6 4 4.4 Input Voltage (V) 4.8 50 TJ = -40°C TJ = 25°C TJ = 85°C TJ = 125°C 9 3.2 5.2 5.5 Figure 7-2. Shutdown Current ISD Figure 7-1. Quiescent Current into VIN IQ_VIN 10 2.8 5.5 TJ = -40°C TJ = 25°C TJ = 85°C TJ = 125°C 45 40 35 30 25 20 15 2.4 2.8 3.2 Figure 7-3. Output Discharge Resistance RDIS 3.6 4 4.4 Input Voltage (V) 4.8 5.2 5.5 TPSM8286xAA0SRDJ Figure 7-4. Dropout Resistance RDP Dropout Resistance RDP (mOhms) 50 TJ = -40°C TJ = 25°C TJ = 85°C TJ = 125°C 45 40 35 30 25 20 15 2.4 2.8 3.2 3.6 4 4.4 Input Voltage (V) 4.8 5.2 5.5 TPSM8286xAA0HRDM Figure 7-5. Dropout Resistance RDP Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 7 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 8 Detailed Description 8.1 Overview The TPSM8286xA synchronous step-down converter power module is based on DCS-Control (Direct Control with Seamless transition into power save mode). This is an advanced regulation topology that combines the advantages of hysteretic, voltage, and current mode control. The DCS-Control topology operates in PWM (pulse width modulation) mode for medium-to-heavy load conditions and in PSM (power save mode) at light load currents. In PWM, the converter operates with its nominal switching frequency of 2.4 MHz, having a controlled frequency variation over the input voltage range. As the load current decreases, the converter enters power save mode, reducing the switching frequency and minimizing the quiescent current of the IC to achieve high efficiency over the entire load current range. DCS-Control supports both operation modes using a single building block and, therefore, has a seamless transition from PWM to PSM without effects on the output voltage. The TPSM8286xA offers excellent DC voltage regulation and load transient regulation, combined with low output voltage ripple, minimizing interference with RF circuits. 8.2 Functional Block Diagram PG VPG(high) EN Control Logic UVLO Thermal Shutdown Start-up Ramp VSET/ MODE VFB VPG(low) VSW + – VIN PG delay + – HS-FET Forward Current Limit TON VIN VSW VREF selection HICCUP Direct Control and Compensation 220 nH VOUT Modulator + _EA FB Gate Drive SW Comparator VOS LS-FET Forward Current Limit Zero Current Detect Negative Current Limit RDIS AGND PGND 8.3 Feature Description 8.3.1 Power Save Mode As the load current decreases, the device seamlessly enters power save mode (PSM) operation. In PSM, the converter operates with a reduced switching frequency and a minimum quiescent current to maintain high efficiency. Power save mode is based on a fixed on-time architecture, as shown in Equation 1. tON VOUT VIN ˜ 416ns (1) 8 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 The switching frequency in PSM is estimated as: (2) The load current at which PSM is entered is at one half of the ripple current of the inductor and it can be estimated as: (3) In power save mode, the output voltage rises slightly above the nominal output voltage. This effect is minimized by increasing the output capacitance. 8.3.2 Forced PWM Mode After the device has powered up and ramped up VOUT, the VSET/MODE pin acts as a digital input. With a high level on the VSET/MODE pin, the device enters forced PWM (FPWM) mode and operates with a constant switching frequency over the entire load range, even at very light loads. This reduces the output voltage ripple and allows simple filtering of the switching frequency for noise-sensitive applications but lowers efficiency at light loads. 8.3.3 Optimized Transient Performance from PWM to PSM Operation For most converters, the load transient response in PWM mode is improved compared to PSM, because the converter reacts faster on the load step and actively sinks energy on the load release. As an additional feature, the TPSM8286xA automatically stays in PWM mode for 128 cycles after a heavy load release to bring the output voltage back to the regulation level faster. After these 128 cycles of PWM mode, it automatically returns to PSM (if VSET/MODE is low). See Figure 8-1. Without this optimization, the output voltage overshoot is higher. VOUT FPWM mode for 128 switching cycles PSM mode PSM mode Device operates in PWM because of high load current IOUT Figure 8-1. Optimized Transient Performance from PWM to PSM Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 9 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 8.3.4 Low Dropout Operation (100% Duty Cycle) The device offers a low dropout operation by entering 100% duty cycle mode if the input voltage comes close to the target output voltage. In this mode, the high-side MOSFET switch is constantly turned on. This is particularly useful in battery-powered applications to achieve the longest operation time by taking full advantage of the whole battery voltage range. The minimum input voltage to maintain a minimum output voltage is given by: VIN (min) = VOUT (min) + IOUT (max) × RDP (4) where • • • VOUT (min) = Minimum output voltage the load can accept IOUT (max) = Maximum output current RDP = Resistance from VIN to VOUT (high-side RDS(on) + RDC of the inductor) 8.3.5 Soft Start After enabling the device, there is a 650-µs enable delay (tDelay) before the device starts switching. The tDelay time varies with the VSET/MODE resistor used and is longest with a resistance of 249 k or higher. After the enable delay, an internal soft-start circuit ramps up the output voltage in 1 ms (tRamp). This action avoids excessive inrush current and creates a smooth output voltage ramp up. This action also prevents excessive voltage drops of batteries that have a high internal impedance. Figure 8-2 shows the start-up sequence. VIN EN VOUT tDelay tRamp tStart-up Figure 8-2. Start-Up Sequence The device is able to start into a pre-biased output capacitor. The device starts with the applied bias voltage and ramps the output voltage to its nominal value. 8.3.6 Switch Current Limit and HICCUP Short-Circuit Protection The switch current limit prevents the device from high inductor current and from drawing excessive current from the battery or input voltage rail. Excessive current can occur with a heavy load or shorted output circuit condition. If the inductor current reaches the threshold ILIM, cycle by cycle, the high-side MOSFET is turned off and the low-side MOSFET is turned on until the inductor current ramps down to the low-side MOSFET current limit. When the high-side MOSFET current limit is triggered 256 times, the device stops switching. The device then automatically re-starts with soft start after a typical delay time of 16 ms has passed. The device repeats this mode until the high load condition disappears. This HICCUP short-circuit protection reduces the current consumed from the input supply because the device only draws input current approximately 10% of the time during an overload condition. Figure 9-29 shows the hiccup short-circuit protection. The low-side MOSFET also contains a negative current limit to prevent excessive current from flowing back through the inductor to the input. If the low-side sinking current limit is exceeded, the low-side MOSFET is turned off. In this scenario, both MOSFETs are off until the start of the next cycle. The negative current limit is only active in forced PWM mode. 10 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A www.ti.com TPSM82864A, TPSM82866A SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 8.3.7 Undervoltage Lockout To avoid mis-operation of the device at low input voltages, undervoltage lockout (UVLO) disables the device when the input voltage is lower than VUVLO. When the input voltage recovers, the device automatically returns to operation with soft start. 8.3.8 Thermal Shutdown When the junction temperature exceeds TJSD, the device goes into thermal shutdown, stops switching, and activates the output voltage discharge. When the device temperature falls below the threshold by the hysteresis, the device returns to normal operation automatically with soft start. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 11 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 8.4 Device Functional Modes 8.4.1 Enable and Disable (EN) The device is enabled by setting the EN pin to a logic high. Accordingly, shutdown mode is forced if the EN pin is pulled low. In shutdown mode, the internal power switches as well as the entire control circuitry are turned off. An internal switch smoothly discharges the output through the VOS pin in shutdown mode. Do not leave the EN pin floating. The typical enable threshold value of the EN pin is 0.66 V for rising input signals and the typical shutdown threshold is 0.52 V for falling input signals. 8.4.2 Output Discharge The purpose of the output discharge function is to ensure a defined down-ramp of the output voltage when the device is disabled and to keep the output voltage close to 0 V. The output discharge is active when the EN pin is set to a logic low and during thermal shutdown. The discharge is active down to an input voltage of 1.6 V (typical). 8.4.3 Power Good (PG) The device has an open-drain power-good pin, which is specified to sink up to 2 mA. The power-good output requires a pullup resistor connected to any voltage rail less than 5.5 V. The PG signal can be used for sequencing of multiple rails by connecting it to the EN pin of other converters. Leave the PG pin unconnected when not used. Table 8-1 shows the typical PG pin logic. Table 8-1. PG Pin Logic LOGIC STATUS DEVICE CONDITIONS HIGH IMPEDANCE 0.9 × VOUT_NOM ≤ VVOUT ≤ 1.1 × VOUT_NOM Enable LOW √ VVOUT < 0.9 × VOUT_NOM or VVOUT > 1.1 × VOUT_NOM √ Shutdown EN = low √ Thermal shutdown TJ > TJSD √ UVLO 1.8 V < VIN < VUVLO √ Power supply removal VIN < 1.8 V undefined The PG pin has a 34-μs delay time on the falling edge and a 34-μs delay before PG goes high. See Figure 8-3. VPG(high) VO VPG(low) PG tPG,DLY tPG,DLY tPG,DLY tPG,DLY tPG,DLY tPG,DLY Figure 8-3. Power-Good Transient and Delay Behavior 12 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 8.4.4 Output Voltage and Mode Selection (VSET/MODE) The TPSM8286xA family devices are configurable as either an adjustable output voltage or a fixed output voltage, depending on the needs of each individual application. This feature simplifies the logistics during mass production, as one part number offers several fixed output voltage options as well as an adjustable output voltage option. During the enable delay (tDelay), the device configuration is set by an external resistor connected to the VSET/MODE pin through an internal R2D (resistor to digital) converter. This configures the VREF input to the error amplifier (EA) to be either the VFB voltage (0.6-V typical) or the selected output voltage. Table 8-2 shows the options. Table 8-2. Output Voltage Selection Table RESISTOR AT VSET/MODE PIN (E96 SERIES, ±1% ACCURACY, 200 ppm OR BETTER) FIXED OR ADJUSTABLE OUTPUT VOLTAGE 249 k or logic high Adjustable (through a resistive divider on the FB pin) 205 k 3.30 V 162 k 2.50 V 133 k 1.80 V 105 k 1.50 V 68.1 k 1.35 V 56.2 k 1.20 V 44.2 k 1.10 V 36.5 k 1.05 V 28.7 k 1.00 V 23.7 k 0.95 V 18.7 k 0.90 V 15.4 k 0.85 V 12.1 k 0.80 V 10 k or logic low Adjustable (through a resistive divider on the FB pin) The R2D converter has an internal current source, which applies current through the external resistor, and an internal ADC, which reads back the resulting voltage level. Depending on the detected resistance, the output voltage is set. After this R2D conversion is finished, the current source is turned off to avoid current flowing through the external resistor. Make sure that the additional leakage current path is less than 20 nA and the capacitance is not greater than 30 pF from this pin to GND during R2D conversion, otherwise a false VOUT value is set. For more details, refer to the Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies White Paper. When the device is set to a fixed output voltage, the FB pin must be connected to the output directly. See Figure 8-4. VIN 2.4 V to 5.5 V VOUT 1.8 V VIN C1 22 µF C2 2 × 22 µF or 1 × 47 µF VOS EN R3 VPG VOUT FB PG VSET/ MODE AGND PGND R4 133 kΩ Figure 8-4. Fixed Output Voltage Application Circuit After the start-up period (tStart-up), a different operation mode can be selected. When VSET/MODE is set to high, the device is in forced PWM mode. Otherwise, the device is in power save mode. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 13 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 9 Application and Implementation Note Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes, as well as validating and testing their design implementation to confirm system functionality. 9.1 Application Information The TPSM8286xA is a synchronous step-down converter power module family. The following section discusses the selection of the external components to complete the power supply design. The required power inductor is integrated inside the TPSM8286xA. The integrated shielded inductor has a value of 0.22 µH with a ±20% tolerance. The TPSM82864A and TPSM82866A are pin-to-pin and BOM-to-BOM compatible. The TPSM8286xAA0HRDMR devices give a higher efficiency than the TPSM8286xAA0SRDJR devices due to their increased height. For a given package height (RDM or RDJ), the 4A and 6A version give the same efficiency and performance and are different only in their rated output current. 9.2 Typical Application VIN 2.4 V to 5.5 V VOUT 1.2 V VIN C1 22 µF R3 VOUT C2 2 × 22 µF or 1 × 47 µF VOS EN R1 FB VPG PG AGND VSET/ MODE PGND R2 Figure 9-1. Typical Application 9.2.1 Design Requirements For this design example, use Table 9-1 as the input parameters. Table 9-1. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Input voltage 2.4 V to 5.5 V Output voltage 1.2 V Maximum output current 6A Table 9-2 lists the components used for the example. Table 9-2. List of Components REFERENCE (1) 14 DESCRIPTION MANUFACTURER(1) C1 22 µF, Ceramic capacitor, 6.3 V, X7R, size 0805, GRM21BZ70J226ME44 C2 47 µF, Ceramic capacitor, 6.3 V, X6S, size 0805, JMK212BC6476MG-T Murata R1 Depending on the output voltage, Chip resistor, 1/16 W, 1% Std R2 100 kΩ, Chip resistor, 1/16 W, 1% Std R3 100 kΩ, Chip resistor, 1/16 W, 1% Std Taiyo Yuden See the Third-party Products disclaimer. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 9.2.2 Detailed Design Procedure 9.2.2.1 Setting The Output Voltage With the VSET/MODE pin set high or low, an adjustable output voltage is set by an external resistor divider according to Equation 5: §V R1 R2 u ¨ OUT © VFB · 1¸ ¹ §V R2 u ¨ OUT © 0.6V · 1¸ ¹ (5) To keep the feedback (FB) net robust from noise, set R2 equal to or lower than 100 kΩ to have at least 6 µA of current in the voltage divider. Lower values of FB resistors achieve better noise immunity but lower light-load efficiency, as explained in the Design Considerations for a Resistive Feedback Divider in a DC/DC Converter Technical Brief. When a fixed output voltage is selected, connect the FB pin directly to the output. R1 and R2 are not needed, as VOUT is set through a resistor on the VSET/MODE pin. Select the recommended resistor value from the list in Table 8-2. 9.2.2.2 Input and Output Capacitor Selection For the best output and input voltage filtering, low-ESR ceramic capacitors are required. The input capacitor minimizes input voltage ripple, suppresses input voltage spikes, and provides a stable system rail for the device. The input capacitor must be placed between VIN and PGND as close as possible to those pins. For most applications, 22 μF is sufficient, though a larger value reduces input current ripple. The input capacitor plays an important role in the EMI performance of the system as explained in the Simplify Low EMI Design With Power Modules White Paper. The architecture of the device allows the use of tiny ceramic output capacitors with low equivalent series resistance (ESR). These capacitors provide low output voltage ripple and are recommended. The capacitor value can range from 2 × 22 µF up to 150 µF. The recommended typical output capacitors are 2 × 22 µF or 1 × 47 µF with an X5R or better dielectric. Values over 150 µF can degrade the loop stability of the converter. Ceramic capacitors have a DC-Bias effect, which has a strong influence on the final effective capacitance. Choose the right capacitor carefully in combination with considering its package size and voltage rating. Make sure that the effective input capacitance is at least 10 µF and the effective output capacitance is at least 22 µF. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 15 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 9.2.3 Application Curves 100 100 95 95 90 90 85 85 80 80 Efficiency (%) Efficiency (%) VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C, BOM = Table 9-2, unless otherwise noted. Solid lines show the FPWM mode and dashed lines show PSM. 75 70 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 55 50 45 40 100u 1m 10m 100m Output Current (A) TPSM8286xAA0SRDJ 1 60 40 0 6 100 95 90 90 85 85 80 80 75 70 65 60 40 100u 10m 100m Output Current (A) TPSM8286xAA0SRDJ 1 60 0 90 85 85 80 80 Efficiency (%) 95 90 60 TPSM8286xAA0SRDJ 1 1 1.5 2 2.5 3 3.5 4 Output Current (A) 4.5 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V 40 Figure 9-6. Efficiency VIN = 2.8 V and TA = 25°C 6 70 45 PSM and FPWM 5.5 75 50 6 5 FPWM 55 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V 10m 100m Output Current (A) 0.5 Figure 9-5. Efficiency VIN = 3.3 V and TA = 85°C 100 1m VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V TPSM8286xAA0SRDJ 65 6 FPWM 40 70 5.5 65 6 75 5 70 95 40 100u 4.5 75 100 45 2.5 3 3.5 4 Output Current (A) 45 Figure 9-4. Efficiency VIN = 3.3 V and TA = 25°C 50 2 50 PSM and FPWM 55 1.5 55 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 1m 1 Figure 9-3. Efficiency VIN = 5.0 V and TA = 85°C 95 45 0.5 TPSM8286xAA0SRDJ 100 50 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 45 Efficiency (%) Efficiency (%) 65 50 PSM and FPWM 55 Efficiency (%) 70 55 Figure 9-2. Efficiency VIN = 5.0 V and TA = 25°C 16 75 0 0.5 1 1.5 2 2.5 3 3.5 4 Output Current (A) TPSM8286xAA0SRDJ 4.5 5 5.5 6 FPWM Figure 9-7. Efficiency VIN = 2.8 V and TA = 85°C Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 100 100 95 95 90 90 85 85 80 80 Efficiency (%) Efficiency (%) www.ti.com 75 70 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 55 50 45 40 100u 1m 10m 100m Output Current (A) TPSM8286xAA0HRDM 1 75 70 65 60 50 45 40 0 6 Figure 9-8. Efficiency VIN = 5.0 V and TA = 25°C 90 85 85 80 80 Efficiency (%) 95 90 Efficiency (%) 100 95 75 70 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 45 40 100u 1m 10m 100m Output Current (A) TPSM8286xAA0HRDM 1 85 80 80 Efficiency (%) Efficiency (%) 90 85 60 1.5 2 2.5 3 3.5 4 Output Current (A) 4.5 65 60 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V 40 Figure 9-12. Efficiency VIN = 2.8 V and TA = 25°C 6 70 45 PSM and FPWM 5.5 75 50 6 5 FPWM 55 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V TPSM8286xAA0HRDM 1 Figure 9-11. Efficiency VIN = 3.3 V and TA = 85°C 95 1 0.5 TPSM8286xAA0HRDM 90 10m 100m Output Current (A) VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 0 65 6 60 40 6 70 5.5 FPWM 45 75 5 65 100 1m 4.5 70 95 40 100u 2.5 3 3.5 4 Output Current (A) 75 100 45 2 50 Figure 9-10. Efficiency VIN = 3.3 V and TA = 25°C 50 1.5 55 PSM and FPWM 55 1 Figure 9-9. Efficiency VIN = 5.0 V and TA = 85°C 100 50 0.5 TPSM8286xAA0HRDM PSM and FPWM 55 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 55 0 0.5 1 1.5 2 2.5 3 3.5 4 Output Current (A) TPSM8286xAA0HRDM 4.5 5 5.5 6 FPWM Figure 9-13. Efficiency VIN = 2.8 V and TA = 85°C Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 17 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 2 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 1 Output Voltage Accuracy (%) Output Voltage Accuracy (%) 2 0 -1 10u 100u 1m 10m 100m Output Current (A) 1 1 0 -1 10u 6 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 100u TA = 25°C 2 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 1 0 1m 10m 100m Output Current (A) 1 1 0 -1 10u 6 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 100u TA = 25°C 2 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V 6 1 0 1m 10m 100m Output Current (A) 1 6 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V 1 0 -1 10u 100u TA = 25°C 1m 10m 100m Output Current (A) 1 6 TA = 25°C Figure 9-18. Load Regulation VIN = 2.8 V and PSM 18 1 Figure 9-17. Load Regulation VIN = 3.3 V and FPWM Output Voltage Accuracy (%) Output Voltage Accuracy (%) 2 100u 1m 10m 100m Output Current (A) TA = 25°C Figure 9-16. Load Regulation VIN = 3.3 V and PSM -1 10u 6 Figure 9-15. Load Regulation VIN = 5.0 V and FPWM Output Voltage Accuracy (%) Output Voltage Accuracy (%) 2 100u 1 TA = 25°C Figure 9-14. Load Regulation VIN = 5.0 V and PSM -1 10u 1m 10m 100m Output Current (A) Figure 9-19. Load Regulation VIN = 2.8 V and FPWM Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 4 3 2 Switching Frequency (MHz) Switching Frequency (MHz) 4 3 2 1 0.7 0.5 0.3 0.2 0.1 0.07 0.05 0.03 0.02 10m VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 100m Output Current (A) PSM and FPWM 1 6 1 0.7 0.5 0.3 0.2 0.1 0.07 0.05 0.03 0.02 10m TA = 25°C VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 100m Output Current (A) PSM and FPWM 1 6 TA = 25°C Figure 9-20. Switching Frequency VIN = 5.0 V Figure 9-21. Switching Frequency VIN = 3.3 V VIN VIN VOUT VOUT VSW VSW VIN = 5.0 V VOUT = 1.2 V TA = 25°C VIN = 5.0 V Figure 9-22. FPWM Operation IOUT = 6 A VOUT IOUT IOUT VOUT = 1.2 V TA = 25°C Figure 9-24. Load Transient FPWM IOUT = 0 A → 6 A TA = 25°C Figure 9-23. PSM Operation IOUT = 0.1 A VOUT VIN = 5.0 V VOUT = 1.2 V VIN = 5.0 V VOUT = 1.2 V TA = 25°C Figure 9-25. Load Transient PSM IOUT = 0 A → 6 A Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 19 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 EN EN PG PG VOUT VOUT VSET / MODE VSET / MODE RVSET = 56.2 kΩ IOUT = 6.0 A RVSET = 56.2 kΩ Figure 9-26. Start-Up into Full Load IOUT = 0 A Figure 9-27. Start-Up with No Load PG VOUT VOUT IOUT IOUT VOUT = 1.2 V Figure 9-28. Load Sweep IOUT = 20 mA → 6 A 7 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 6.5 6 Output Current (A) 5.5 5 4.5 4 3.5 3 Figure 9-29. HICCUP Short-Circuit Protection 7 6 5.5 5 4.5 4 3.5 3 2 2 1.5 1.5 1 75 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 6.5 2.5 2.5 80 85 90 95 100 105 110 Ambient Temperature (°C) RθJA = 25.4°C/W 115 120 TJmax = 125°C Figure 9-30. Safe Operating Area VIN = 5.0-V TPSM82866AA0HRDMR 20 RLOAD = 100 mΩ (during overload) TA = 25°C Output Current (A) VIN = 5.0 V 1 75 80 85 90 95 100 105 110 Ambient Temperature (°C) RθJA = 25.4°C/W 115 120 TJmax = 125°C Figure 9-31. Safe Operating Area VIN = 3.3-V TPSM82866AA0HRDMR Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 6 Output Current (A) 5.5 5 4.5 4 3.5 3 2.5 7 VOUT = 0.6V VOUT = 0.9V VOUT = 1.2V VOUT = 1.8V VOUT = 2.5V 6.5 6 5.5 Output Current (A) 7 6.5 5 4.5 4 3.5 3 2.5 2 2 1.5 1.5 1 75 80 85 90 95 100 105 110 Ambient Temperature (°C) RθJA = 25.4°C/W 115 120 TJmax = 125°C Figure 9-32. Safe Operating Area VIN = 5.0-V TPSM82866AA0SRDJR 1 75 80 85 90 95 100 105 110 Ambient Temperature (°C) RθJA = 25.4°C/W 115 120 TJmax = 125°C Figure 9-33. Safe Operating Area VIN = 3.3-V TPSM82866AA0SRDJR 9.3 Power Supply Recommendations The device is designed to operate from an input voltage supply range from 2.4 V to 5.5 V. The average input current of the TPSM8286xA is calculated as: (6) Make sure that the input power supply has a sufficient current rating for the application. The power supply must avoid a fast ramp down. The falling ramp speed must be slower than 10 mV/μs if the input voltage drops below VUVLO. 9.4 Layout 9.4.1 Layout Guidelines A proper layout is critical for the operation of any switched mode power supply, especially at high switching frequencies. Therefore, the PCB layout of the TPSM8286xA demands careful attention to ensure best performance. A poor layout can lead to issues like the following: • • • • Bad line and load regulation Instability Increased EMI radiation Noise sensitivity Refer to the Five Steps to a Great PCB Layout for a Step-Down Converter Technical Brief for a detailed discussion of general best practices. The following are specific recommendations for the TPSM8286xA: • • • • • • Place the input capacitor as close as possible to the VIN and PGND pins of the device. This placement is the most critical component placement. Route the input capacitor directly to the VIN and PGND pins avoiding vias. Place the output capacitor close to the VOUT and PGND pins and route it directly avoiding vias. Place the FB resistors R1 and R2 close to the FB and AGND pins and place R4 close to the VSET/MODE pin to minimize noise pickup. The sense traces connected to the VOS pin is a signal trace. Take special care to avoid noise being induced. Keep the trace away from SW. To improve thermal performance, use GND vias under the exposed thermal pad. Directly connect the AGND and PGND pins to the exposed thermal pad with copper on the top PCB layer. Refer to Figure 9-34 for an example of component placement, routing, and thermal design. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 21 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 • The recommended land pattern for the TPSM8286xA is shown at the end of this data sheet. For best manufacturing results, create the pads as solder mask defined (SMD) when some pins (such as VIN, VOUT, and PGND) are connected to large copper planes. Using SMD pads keeps each pad the same size and avoids solder pulling the device during reflow. PGND PGND MODE R4 PGND PGND PGND VIN PGND PGND PG PGND VIN VSET/ PGND EN C1 VIN VOUT VOUT VOUT VOUT VOUT AGND FB U1 VOS GND R1 R2 C2 9.4.2 Layout Example GND SW 35 mm² Total Solution Size Figure 9-34. Layout Example 22 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 9.4.2.1 Thermal Considerations The TPSM8286xA power module temperature must be kept less than the maximum rating of 125°C. The following are three basic approaches for enhancing thermal performance: • • • Improve the power dissipation capability of the PCB design. Improve the thermal coupling of the component to the PCB. Introduce airflow into the system. To estimate the approximate module temperature of the TPSM8286xA, apply the typical efficiency stated in this data sheet to the desired application condition to compute the power dissipation of the module. Then, calculate the module temperature rise by multiplying the power dissipation by its thermal resistance. Using this method to compute the maximum device temperature, the Safe Operating Area (SOA) graphs demonstrate the required derating in maximum output current at high ambient temperatures. For more details on how to use the thermal parameters in real applications, see the Thermal Characteristics of Linear and Logic Packages Using JEDEC PCB Designs Application Report and Semiconductor and IC Package Thermal Metrics Application Report. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A 23 TPSM82864A, TPSM82866A www.ti.com SLUSEF1B – SEPTEMBER 2021 – REVISED NOVEMBER 2022 10 Device and Documentation Support 10.1 Device Support 10.1.1 Third-Party Products Disclaimer TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 10.2 Documentation Support 10.2.1 Related Documentation For related documentation, see the following: • • • • • Texas Instruments, Thermal Characteristics of Linear and Logic Packages Using JEDEC PCB Designs Application Report Texas Instruments, Semiconductor and IC Package Thermal Metrics Application Report Texas Instruments, Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies White Paper Texas Instruments, Design Considerations for a Resistive Feedback Divider in a DC/DC Converter Technical Brief Texas Instruments, Simplify Low EMI Design With Power Modules White Paper 10.3 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Subscribe to updates to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 10.4 Support Resources TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. 10.5 Trademarks TI E2E™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. 10.6 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 10.7 Glossary TI Glossary This glossary lists and explains terms, acronyms, and definitions. 11 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 24 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM82864A TPSM82866A PACKAGE OPTION ADDENDUM www.ti.com 8-Dec-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) (3) Device Marking Samples (4/5) (6) TPSM82864AA0HRDMR ACTIVE B0QFN RDM 23 3000 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 125 TM864AA0H Samples TPSM82864AA0SRDJR ACTIVE B0QFN RDJ 23 3000 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 125 TM864AA0S Samples TPSM82866AA0HRDMR ACTIVE B0QFN RDM 23 3000 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 125 TM866AA0H Samples TPSM82866AA0SRDJR ACTIVE B0QFN RDJ 23 3000 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 125 TM866AA0S Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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TPSM82866AA0SRDJR
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