TPSM846C24 Power Module Datasheet

TPSM846C24 Datasheet, PDF, Equivalent


Part Number

TPSM846C24

Description

35-A Power Module

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TPSM846C24
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TPSM846C24
SLVSE06B – JANUARY 2018 – REVISED JANUARY 2019
TPSM846C24 4.5-V to 15-V Input, 0.5-V to 2-V Output, 35-A Power Module
1 Features
1 Complete Integrated 35-A Power Solution
• Pin Compatible With TPSM846C23 (PMBus)
• Stackable up to 70 A With Current Sharing
• Output Voltage Range 0.5 V to 2 V
• Output Voltage Accuracy as Tight as 0.5%
• 15 mm × 16 mm Footprint
(6.4 mm Maximum Height)
• 300-kHz to 1-MHz Switching Frequency
• Synchronization to an External Clock
• Differential Remote Sense
• Power-Good Output
• Prebias Output Monotonic Start-up
• Fixed 3-ms Soft-Start / Soft-Stop Time
• Overcurrent Protection
• Operating IC Junction Range: –40°C to +125°C
• Operating Ambient Range: –40°C to +105°C
• Enhanced Thermal Performance: 8.7°C/W
• Meets EN55022 Class A Emissions
• Create a Custom Design Using the TPSM846C24
With the WEBENCH® Power Designer
Simplified Schematic
VIN VIN
VS+
VOUT
VOUT
PGND
PGND
TPSM846C24 VS-
PGOOD
DIFFO
EN
SYNC
PGND AGND
FB
RSET
Copyright © 2018, Texas Instruments Incorporated
2 Applications
• Compact PCI / PCI Express / PXI Express
• Broadband and Communications Infrastructure
• Automated Test and Medical Equipment
• DSP, FPGA, and ASIC Point-of-Load Applications
3 Description
The TPSM846C24 is a 35-A, fixed-frequency, step-
down power module. The module incorporates the
controller, power MOSFETs, inductor, and associated
components into a rugged, thermally enhanced,
surface-mount package. The user supplies the input
and output capacitors along with a few other passive
components to set the operating parameters of the
module. Two modules can be configured to work in
parallel to provide up to a 70-A, two-phase power
solution.
The 15 mm × 16 mm component footprint is easy to
solder onto a printed circuit board and allows a
compact, point-of-load design.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPSM846C24
MOL (59)
15 mm × 16 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
space
100
95
90
85
80
75
70
65
60
55
0
Efficiency vs Output Current
VOUT = 1.8 V
VIN = 5 V
VIN = 12 V
5 10 15 20 25 30 35
Output Current (A)
Eff1
1
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.

TPSM846C24
TPSM846C24
SLVSE06B – JANUARY 2018 – REVISED JANUARY 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 6
6.6 Switching Characteristics .......................................... 8
6.7 Typical Characteristics (VIN = 12 V).......................... 9
6.8 Typical Characteristics (VIN = 5 V).......................... 10
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 12
7.4 Device Functional Modes........................................ 20
8 Application and Implementation ........................ 21
8.1 Typical Application .................................................. 21
9 Power Supply Recommendations...................... 24
10 Layout................................................................... 24
10.1 Layout Guidelines ................................................. 24
10.2 Layout Example .................................................... 25
10.3 Package Specifications ......................................... 26
10.4 EMI........................................................................ 26
10.5 Mounting and Thermal Profile Recommendation.. 28
11 Device and Documentation Support ................. 29
11.1 Device Support...................................................... 29
11.2 Receiving Notification of Documentation Updates 29
11.3 Community Resources.......................................... 29
11.4 Trademarks ........................................................... 29
11.5 Electrostatic Discharge Caution ............................ 29
11.6 Glossary ................................................................ 29
12 Mechanical, Packaging, and Orderable
Information ........................................................... 30
12.1 Tape and Reel Information ................................... 30
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (August 2018) to Revision B
Page
• Changed HBM ESD from 500 to 1000V................................................................................................................................. 5
Changes from Original (January 2018) to Revision A
Page
• Updated PCB Top-side Layout Recommendation figure ..................................................................................................... 25
2 Submit Documentation Feedback
Copyright © 2018–2019, Texas Instruments Incorporated
Product Folder Links: TPSM846C24


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPSM846C24 SLVSE06B – JANUARY 2018 – REVISED JANUARY 2019 TPSM846C 24 4.5-V to 15-V Input, 0.5-V to 2-V Ou tput, 35-A Power Module 1 Features • 1 Complete Integrated 35-A Power Soluti on • Pin Compatible With TPSM846C23 ( PMBus) • Stackable up to 70 A With Cu rrent Sharing • Output Voltage Range 0.5 V to 2 V • Output Voltage Accurac y as Tight as 0.5% • 15 mm × 16 mm F ootprint (6.4 mm Maximum Height) • 30 0-kHz to 1-MHz Switching Frequency • Synchronization to an External Clock Differential Remote Sense • Power-G ood Output • Prebias Output Monotonic Start-up • Fixed 3-ms Soft-Start / S oft-Stop Time • Overcurrent Protectio n • Operating IC Junction Range: –4 0°C to +125°C • Operating Ambient R ange: –40°C to +105°C • Enhanced Thermal Performance: 8.7°C/W • Meets EN55022 Class A Emissions • Create a Custom Design Using the TPSM846C24 With the WEBENCH® Power Designer Simplified Schematic VIN VIN VS+ VOUT VO.
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