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TPS22994 Dataheets PDF



Part Number TPS22994
Manufacturers Texas Instruments
Logo Texas Instruments
Description Quad Channel Load Switch
Datasheet TPS22994 DatasheetTPS22994 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22994 SLVSCL4B – AUGUST 2014 – REVISED SEPTEMBER 2014 TPS22994 Quad Channel Load Switch with GPIO and I2C Control 1 Features •1 Input Voltage: 1.0 V to 3.6 V • Low ON-State Resistance (VBIAS = 7.2 V) – RON = 41 mΩ at VIN = 3.3 V – RON = 41 mΩ at VIN = 1.8 V – RON = 41 mΩ at VIN = 1.5 V – RON = 41 mΩ at VIN = 1.0 V • VBIAS voltage range: 2.7 V to 17.2 V – Suitable for 1S/2S/3S/4S Li-ion Battery Topologie.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22994 SLVSCL4B – AUGUST 2014 – REVISED SEPTEMBER 2014 TPS22994 Quad Channel Load Switch with GPIO and I2C Control 1 Features •1 Input Voltage: 1.0 V to 3.6 V • Low ON-State Resistance (VBIAS = 7.2 V) – RON = 41 mΩ at VIN = 3.3 V – RON = 41 mΩ at VIN = 1.8 V – RON = 41 mΩ at VIN = 1.5 V – RON = 41 mΩ at VIN = 1.0 V • VBIAS voltage range: 2.7 V to 17.2 V – Suitable for 1S/2S/3S/4S Li-ion Battery Topologies • 1-A Max Continuous Current Per Channel • Quiescent Current – Single Channel < 12 µA – All Four Channels < 22 µA • Shutdown Current (All Four Channels) < 7 µA • Four 1.2-V Compatible GPIO Control Inputs • I2C Configuration (Per Channel) – On/Off Control – Programmable Slew Rate Control (5 options) – Programmable ON-delay (4 options) – Programmable Output Discharge (4 options) • I2C SwitchALL™ Command for Multichannel/Multi-chip Control • QFN-20 package, 3 mm x 3 mm, 0.75 mm height 2 Applications • Ultrathin PC • Notebook PC • Tablets • Servers • All-In-One PC 3 Description The TPS22994 is a multi-channel, low RON load switch with user programmable features. The device contains four N-channel MOSFETs that can operate over an input voltage range of 1.0 V to 3.6 V. The switch can be controlled by I2C making it ideal for usage with processors that have limited GPIO available. The rise time of the TPS22994 device is internally controlled in order to avoid inrush current. The TPS22994 has five programmable slew rate options, four ON-delay options, and four quick output discharge (QOD) resistance options. The channels of the device can be controlled via either GPIO or I2C. The default mode of operation is GPIO control through the ONx terminals. The I2C slave address terminals can be tied high or low to assign seven unique device addresses. The TPS22994 is available in a space-saving RUK package (0.4-mm pitch) and is characterized for operation over the free-air temperature range of –40°C to 85°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS22994 WQFN (20) 3.00 mm x 3.00 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic PMIC or PMU 1 VIN1 ON1 VBIAS (2.7 V to 17.2 V) VOUT1 VIN2 ON2 VIN3 ON3 TPS22994 VOUT2 VOUT3 VIN4 ON4 SDA SCL VOUT4 ADD1 ADD2 ADD3 VDD µC (1.62 to 3.6) CL RL CL RL CL RL CL RL 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. TPS22994 SLVSCL4B – AUGUST 2014 – REVISED SEPTEMBER 2014 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Simplified Schematic............................................. 1 5 Revision History..................................................... 2 6 Device Comparison Table..................................... 3 7 Pin Configuration and Functions ......................... 4 8 Specifications......................................................... 5 8.1 Recommended Operating Conditions....................... 5 8.2 Absolute Maximum Ratings ..................................... 5 8.3 Handling Ratings....................................................... 5 8.4 Thermal Information .................................................. 6 8.5 Electrical Characteristics........................................... 6 8.6 Switching Characteristics, VBIAS = 7.2 V................... 9 8.7 Switching Characteristics, VBIAS = 3.3 V .................. 9 8.8 Typical Characteristics ............................................ 11 9 Detailed Description ............................................ 18 9.1 Overview ................................................................. 18 9.2 Functional Block Diagram ....................................... 18 9.3 Feature Description................................................. 19 9.4 Device Functional Modes........................................ 24 9.5 Register Map........................................................... 25 10 Applications and Implementation...................... 27 10.1 Application Information.......................................... 27 10.2 Typical Application ................................................ 30 11 Layout................................................................... 35 11.1 Board Layout......................................................... 35 12 Device and Documentation Support ................. 36 12.1 Trademarks ........................................................... 36 12.2 Electrostatic Discharge Caution ............................ 36 12.3 Glossary ..........


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