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TPS27S100
SLVSE42B – OCTOBER 2017 – REVISED SEPTEMBER 2019
TPS27S100x 40-V, 4-A, 80-mΩ Single-Channel High-Side Switch
1 Features
•1 80-mΩ Single-channel High-side switch with full diagnostics – TPS27S100A: Open-drain status output – TPS27S100B: Current monitor analog output
• Wide operating voltage 3.5 V to 40 V • Very-low standby current, <0.5 µA • Operating junction temperature, –40 to 150°C • Input control, 3.3-V and 5-V logic compatible • High-accuracy current monitor, ±30 mA at 1 A • Adjustable current limit (0.5-A to 6-A) with external
resistor, ±20% at 0.5 A • Diagnostic enable function for multiplexing of
MCU, analog or digital interface • Excellent ESD protection on IN and OUT pins
– ±16 kV IEC 61000-4-2 ESD contact discharge – ±4 kV IEC 61000-4-4 Electrical fast transient – ±1.0 kV/42 Ω IEC 61000-4-5 Surge • Protection – Overload and short-circuit-to-GND protection – Inductive load negative voltage clamp – Undervoltage lockout (UVLO) protection – Thermal shutdown and swing with self
recovery – Loss of GND protection • Diagnostic – On- and Off-State output Open-Load / short to
supply detection – Overload and short to ground detection – Thermal shutdown and swing detection • Thermally-Enhanced 14-Pin PWP or 16-Pin QFN package
2 Applications
• Programmable logic controller • Building automation • Telecom/networks
3 Description
The TPS27S100x is a single-channel, fully-protected, high-side switch with an integrated NMOS and charge pump. Full diagnostics and high-accuracy currentmonitor features enable intelligent control of the load. An adjustable current-limit function greatly improves the reliability of the whole system. The device diagnostic reporting has two versions to support both digital fault status and analog current monitor output. Accurate current monitor and adjustable current limit features differentiate it from the market.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS27S100x
HTSSOP (14) QFN (16)
4.40 mm × 5.00 mm 4.00 mm × 3.5 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Typical Application Schematic
V+ FIELD_POWER
IN
OUT
TPS27S100 EN
A0
DIAG_EN
Fault
FLT (A version)
Current Sense
IMON (B version)
Back-plane ASIC
Digital Isolator
µC
TPS27S100
A1
TPS27S100
A7 GND
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.
TPS27S100
SLVSE42B – OCTOBER 2017 – REVISED SEPTEMBER 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......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings.............................................................. 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 4 6.5 Electrical Characteristics........................................... 6 6.6 Timing Requirements – Current Monitor
Characteristics ........................................................... 8 6.7 Switching Characteristics .......................................... 9 6.8 Typical Characteristics ............................................ 11 7 Detailed Description ............................................ 15 7.1 Overview ................................................................. 15 7.2 Functional Block Diagram ....................................... 15
7.3 Feature Description................................................. 15 7.4 Device Functional Modes........................................ 23 8 Application and Implementation ........................ 25 8.1 Application Information............................................ 25 8.2 Typical Application ................................................. 25 9 Power Supply Recommendations...................... 27 10 Layout................................................................... 27 10.1 Layout Guidelines ................................................. 27 10.2 Layout Example .................................................... 27 11 Device and Documentation Support ................. 29 11.1 Receiving Notification of Documentation Updates 29 11.2 Community Resources.......................................... 29 11.3 Trademarks ..........................................................