Texas Instruments TPSM63610 Manual

High-density, 3-v to 36-v input, 1-v to 20-v output, 8-a (10-a peak) synchronous buck dc/dc power module with enhanced hotrod qfn package
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TPSM63610 High-Density, 3-V to 36-V Input, 1-V to 20-V Output, 8-A (10-A Peak)
Synchronous Buck DC/DC Power Module With Enhanced HotRod™ QFN Package
1 Features
Functional Safety-Capable
Documentation available to aid functional safety
system design
Versatile 36-V
, 8-A
IN
OUT
– Integrated MOSFETs, inductor, and controller
– Adjustable output voltage from 1 V to 20 V
– 6.5-mm × 7.5-mm × 4-mm overmolded package
– –40°C to 125°C junction temperature range
– Frequency adjustable from 200 kHz to 2.2 MHz
Negative output voltage
Ultra-high efficiency across the full load range
– 95%+ peak efficiency
– External bias option for improved efficiency
– Exposed Pad for low thermal impedance. EVM
θ
= 18.2 °C/W.
JA
– Shutdown quiescent current of 0.6 µA (typical)
Ultra-low
conducted and radiated EMI
– Low-noise package with dual input paths and
integrated capacitors reduces switch ringing
– Resistor-adjustable switch-node slew rate
– Meets CISPR 11 and 32 Class B emissions
Suitable for scalable power supplies
– Pin compatible with the TPSM63608 (36 V, 6 A)
Inherent protection features for robust design
– Precision enable input and open-drain PGOOD
indicator for sequencing, control, and V
– Overcurrent and thermal shutdown protections
Create a custom design using the TPSM63610
with the
WEBENCH
®
Power Designer
2 Applications
Test and
measurement,
Factory automation and control
Buck
and
inverting buck-boost
V
= 3 V...36 V
IN
VIN1
VIN2
C
IN
PGND
TPSM63610
EN
VCC
R
SPSP
PG
PG
RT
R
RT
SYNC/
MODE
Typical Schematic
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.
synchronous buck module
capability
signatures
UVLO
IN
aerospace and defense
power supplies
CBOOT
RBOOT
V
OUT
VLDOIN
I
= 8 A
OUT
VOUT1
VOUT2
R
FBT
C
OUT
FB
R
FBB
AGND
3 Description
Deriving from a
family
of synchronous buck modules,
the TPSM63610 is a highly integrated 36-V, 8-A
DC/DC solution that combines power MOSFETs, a
shielded inductor, and passives in an Enhanced
HotRod
QFN package. The module has VIN and
VOUT pins located at the corners of the package
for optimized input and output capacitor placement.
Four larger thermal pads beneath the module enable
a simple layout and easy handling in manufacturing.
With an output voltage from 1 V to 20 V, the
TPSM63610 is designed to quickly and easily
implement a low-EMI design in a small PCB footprint.
The total solution requires as few as four external
components and eliminates the magnetics and
compensation part selection from the design process.
Although designed for small size and simplicity
in space-constrained applications, the TPSM63610
module offers many features for robust performance:
precision enable with hysteresis for adjustable input-
voltage UVLO, resistor-programmable switch node
slew rate and spread spectrum and spread spectrum
option for improved EMI. Along with integrated VCC,
bootstrap and input capacitors for increased reliability
and higher density. The module can be configured
for constant switching frequency over the full load
current range (FPWM), or variable frequency (PFM)
for higher light load efficiency. Including a PGOOD
indicator for sequencing, fault protection, and output
voltage monitoring.
Package Information
PART NUMBER
PACKAGE
TPSM63610
RDF (B3QFN, 22) 6.50 mm × 7.50 mm
(2)
TPSM63608
(1)
For all available packages, see the orderable addendum at
the end of the data sheet.
(2)
Product preview.
100
95
90
85
80
75
70
0
1
2
3
Output Current (A)
Typical Efficiency, V
OUT
TPSM63610
SLVSGU1 – NOVEMBER 2022
(1)
BODY SIZE (NOM)
VIN = 12 V
VIN = 24 V
VIN = 36 V
4
5
6
7
8
= 5 V, F
= 1 MHz
SW

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  • Page 1 TPSM63610 SLVSGU1 – NOVEMBER 2022 TPSM63610 High-Density, 3-V to 36-V Input, 1-V to 20-V Output, 8-A (10-A Peak) Synchronous Buck DC/DC Power Module With Enhanced HotRod™ QFN Package 1 Features 3 Description • Functional Safety-Capable Deriving from a family of synchronous buck modules, the TPSM63610 is a highly integrated 36-V, 8-A –...
  • Page 2: Table Of Contents

    8 Detailed Description............12 10.7 Glossary..............34 8.1 Overview..............11 Mechanical, Packaging, and Orderable 8.2 Functional Block Diagram......... Information..............4 Revision History DATE REVISION NOTES November 2022 Initial release Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 3: Description

    Internal LDO output. Used as a supply to the internal control circuits. Do not connect to any external loads. A 1-μF capacitor internally connects from VCC to AGND. Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links:...
  • Page 4 VIN and VOUT pins. See Layout Example for a recommended layout. P = Power, G = Ground, I = Input, O = Output Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 5: Absolute Maximum Ratings

    3.7 V is required at VIN for start up, an extended input voltage range down to 3.0 V is possible after start up; See Minimum input voltage for startup conditions. Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 6: Thermal Information

    Internal VCC under = 0A 3.75 CC_UVLO voltage lock-out is released Internal VCC under voltage lock-out Hysteresis below V CC_UVLO_HYST CC_UVLO hysteresis VOLTAGE REFERENCE (FB PIN) Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 7 2.42 Internal oscillator frequency RT = VCC Oscillator frequency measured using maximum value of RT resistor to select RT = 6.81 kΩ 1.95 2.42 FIXED_2.2MHz 2.2 MHz Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 8 SW pulse if output starts at 0.82 Time from first SW pulse to V 90%, of set point. Short circuit wait time ("hiccup" time) Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 9: System Characteristics

    = 4 A, F = 1 MHz 94.3 VLDOIN η Efficiency = 24 V, V = 5 V, I = 4 A, F = 1 MHz VLDOIN Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 10: Typical Characteristics

    Falling Rising High-side MOSFET EN_WAKE Falling Low-side MOSFET EN_WAKE Junction Temperature (°C) Junction Temperature (°C) Figure 7-6. Enable Thresholds Figure 7-5. High-Side and Low-Side MOSFET R DS(on) Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 11 Figure 7-12. EVM Thermal Performance = 12 V, V = 3.3 V, F = 700 kHz) = 24 V, V = 3.3 V, F = 700 kHz) Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 12: Detailed Description

    8 Detailed Description 8.1 Overview The TPSM63610 is an easy-to-use, synchronous buck DC/DC power module designed for a wide variety of applications where reliability, small solution size, and low EMI signature are of paramount importance. With integrated power MOSFETs, a buck inductor, and PWM controller, the TPSM63610 operates over an input voltage range of 3 V to 36 V with transients as high as 42 V.
  • Page 13: Functional Block Diagram

    8.3 Feature Description 8.3.1 Input Voltage Range (VIN1, VIN2) With a steady-state input voltage range from 3 V to 36 V, the TPSM63610 module is intended for step-down conversions from typical 12-V, 24-V, and 28-V input supply rails. The schematic circuit in...
  • Page 14 8.3.2 Adjustable Output Voltage (FB) The TPSM63610 has an adjustable output voltage range from 1 V up to a maximum of 20 V or slightly less than , whichever is lower. Setting the output voltage requires two feedback resistors, designated as R...
  • Page 15 ΔV is the input voltage ripple specification. The TPSM63610 requires a minimum of two 10-µF ceramic input capacitors, preferably with X7R or X7S dielectric and in 1206 or 1210 footprint. Additional capacitance can be required for applications to meet conducted EMI specifications, such as CISPR 11 or CISPR 32.
  • Page 16 8.3.4 Output Capacitors Table 8-1 lists the TPSM63610 minimum amount of required output capacitance. The effects of DC bias and temperature variation must be considered when using ceramic capacitance. For ceramic capacitors in particular, the package size, voltage rating, and dielectric material contribute to differences between the standard rated value and the actual effective value of the capacitance.
  • Page 17 The simplest way to enable the TPSM63610 is to connect EN directly to VIN. This allows the TPSM63610 to start up when V is within its valid operating range. However, many applications benefit from the use of an enable divider network...
  • Page 18 (Top), F (Middle), V (Bottom) The spread spectrum is only available while the clock of the TPSM63610 are free running at their natural frequency. Any of the following conditions overrides spread spectrum, turning it off: Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
  • Page 19 8.3.11 Bias Supply Regulator (VCC, VLDOIN) VCC is the output of the internal LDO subregulator used to supply the control circuits of the TPSM63610. The nominal VCC voltage is 3.3 V. The VLDOIN pin is the input to the internal LDO. Connect this input to V provide the lowest possible input supply current.
  • Page 20 The TPSM63610 employs hiccup overcurrent protection if there is an extreme overload. In hiccup mode, the TPSM63610 module is shut down and kept off for 40 ms (typical) before a restart is attempted. If an overcurrent or short-circuit fault condition still exists, hiccup repeats until the fault condition is removed. Hiccup mode reduces power dissipation under severe overcurrent conditions, thus preventing overheating and potential damage to the device.
  • Page 21 Both the internal LDO and the switching regulator are off. The quiescent current in shutdown mode drops to 0.6 µA (typical). The TPSM63610 also employs internal undervoltage protection. If the input voltage is below its UV threshold, the regulator remains off.
  • Page 22 9.1 Application Information The TPSM63610 synchronous buck module requires only a few external components to convert from a wide range of supply voltages to a fixed output voltage at an output current up to 8 A. To expedite and streamline the process of designing of a TPSM63610-based regulator, a comprehensive TPSM63610 quickstart calculator tool is available by download to assist the system designer with component selection for a given application.
  • Page 23 See the Third-Party Products Disclaimer. More generally, the TPSM63610 module is designed to operate with a wide range of external components and system parameters. However, the integrated loop compensation is optimized for a certain range of output capacitance. 9.2.1.2 Detailed Design Procedure 9.2.1.2.1 Custom Design With WEBENCH®...
  • Page 24 SLVSGU1 – NOVEMBER 2022 9.2.1.2.2 Output Voltage Setpoint The output voltage of a TPSM63610 module is externally adjustable using a resistor divider. A recommended value for R of 100 kΩ for improved noise immunity compared to 1 MΩ and reduced current consumption compared to lower resistance values.
  • Page 25 = 1 MHz = 4 µs = 24 V Slew rate = 1 A/µs Figure 9-6. Start-up Figure 9-7. Load Transient, 4 A to 8 A, 1 A/µs Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 26 Figure 9-12. CISPR 11 Class B Radiated Figure 9-13. CISPR 11 Class B Radiated Emissions: V = 24 V, SPSP ON Emissions: V = 24 V, SPSP OFF Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 27 OUT2 22 µF, 25 V, X7R, 1210, ceramic 12103C226KAT4A OUT3 47 µF, 16 V, X6S, 1210, ceramic Murata GRM32EC81C476ME15L TPSM63610 36-V, 8-A synchronous buck module Texas Instruments TPSM63610RDLR See the Third-Party Products Disclaimer. Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback...
  • Page 28 Adjustable Output Voltage Equation. 9.2.2.2.2 IBB Maximum Output Current The achievable output current with an IBB topology using the TPSM63610 is I × (1 – D), OUT(max) LDC(max) where I = 8 A is the rated current of the module and D = |V...
  • Page 29 VIN = 24 V VOUT = -12 V Output Current (A) Input Voltage (V) Figure 9-16. Efficiency for V = –12 V, FPWM Figure 9-15. IBB Maximum Output Current Mode Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback Product Folder Links: TPSM63610...
  • Page 30 SLVSGU1 – NOVEMBER 2022 9.3 Power Supply Recommendations The TPSM63610 buck module is designed to operate over a wide input voltage range of 3 V to 36 V. The characteristics of the input supply must be compatible with the Absolute Maximum Ratings...
  • Page 31 The exposed pads of the TPSM63610 are soldered to the ground-connected copper lands on the PCB directly underneath the device package, reducing the thermal resistance to a very low value.
  • Page 32 VOUT AGND Place the feedback Place thermal vias at the components close to the FB pin VOUT pins for heat spreading Figure 9-18. Typical Top Layer Design Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TPSM63610...
  • Page 33 ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 10.1.2 Development Support With an input operating voltage from 3 V to 36 V and rated output current up to 10 A, the TPSM63610 family of synchronous buck power modules provides flexibility, scalability and optimized solution size for a range of applications.
  • Page 34 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.
  • Page 35 PACKAGE OPTION ADDENDUM www.ti.com 18-Nov-2022 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead finish/ MSL Peak Temp Op Temp (°C) Device Marking Samples Drawing Ball material (4/5) TPSM63610RDFR ACTIVE B3QFN 1000 RoHS & Green NIPDAU Level-3-250C-168 HR -40 to 125 63610...
  • Page 36 PACKAGE MATERIALS INFORMATION www.ti.com 13-Nov-2022 TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS B0 W Reel Diameter Cavity Dimension designed to accommodate the component width Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Reel Width (W1) QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE...
  • Page 37 PACKAGE MATERIALS INFORMATION www.ti.com 13-Nov-2022 TAPE AND REEL BOX DIMENSIONS Width (mm) *All dimensions are nominal Device Package Type Package Drawing Pins Length (mm) Width (mm) Height (mm) TPSM63610RDFR B3QFN 1000 336.0 336.0 48.0 Pack Materials-Page 2...
  • Page 38 PACKAGE OUTLINE B3QFN - 4.05 mm max height RDF0022A PLASTIC QUAD FLAT PACK- NO LEAD PIN 1 INDEX AREA 4.05 3.95 SEATING PLANE 0.08 C (0.4) (0.6) 4X 3.4 4X 1.3 (0.13) TYP 4X 0.95 22X (0.15) 0.85 C A B 0.05 4X 1.1 0.1 C A B...
  • Page 39 4226290/A 09/2020 NOTES: (continued) This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271) Vias are optional depending on application, refer to device data sheet. If any vias are implemented, refer to their locations shown on this view.
  • Page 40 EXAMPLE STENCIL DESIGN B3QFN - 4.05 mm max height RDF0022A PLASTIC QUAD FLAT PACK- NO LEAD (5.7) 12X (0.95) (R 0.05) TYP 14X (0.25) 12X (0.95) ℄ 2X (6.5) 0.000 PKG 3X (0.75) 14X (1.2) 3X (2.25) 4X (0.9) 20X (0.65) 4X (1.4) 4X (1.075) SOLDER PASTE EXAMPLE...
  • Page 41 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated...

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