Datasheet

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CCA

SCLA

SDAA

SCLB

SDAB

GND

CCB

TCA9509

RVH PACKAGE

(TOP VIEW)

CCA

CCB

GND

SDAA

SDAB

SCLA SCLB

DGK PACKAGE

(TOP VIEW)

TCA9509

www.ti.com

SCPS225B –AUGUST 2011– REVISED JANUARY 2012

LEVEL-TRANSLATING I

C/SMBUS BUS REPEATER

Check for Samples: TCA9509

FEATURES

• Two-Channel Bidirectional Buffer • Accommodates Standard Mode and Fast Mode

C Devices and Multiple Masters

• I

C Bus and SMBus Compatible

• Supports Arbitration and Clock Stretching

• Operating Supply Voltage Range of

Across Repeater

2.7 V to 5.5 V on B side

• Powered-Off High-Impedance I

C bus pins

• Operating Voltage Range of 0.9 V to V

CCB

– 1V

on A Side • Supports 400-kHz Fast I

C Bus operating

speeds

• Voltage-Level Translation From

0.9 V to (V

CCB

- 1V) and 2.7 V to 5.5 V • Available in

• Active-High Repeater-Enable Input – 1.6mm x 1.6mm, 0.4mm height, 0.5mm pitch

QFN pkg

• Requires no external pull-up resistors on

lower-voltage port-A – 3mm x 3mm industry standard MSOP pkg

• Open-Drain I

C I/O • Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• 5.5-V Tolerant I

C and Enable Input Support

Mixed-Mode Signal Operation • ESD Protection Exceeds JESD 22

• Lockup-Free Operation – 2000-V Human-Body Model (A114-A)

– 1000-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION

This TCA9509 integrated circuit is an I

C bus/SMBus Repeater for use in I

C/SMBus systems. It can also provide

bidirectional voltage-level translation (up-translation/down-translation) between low voltages (down to 0.9 V) and

higher voltages (2.7 V to 5.5 V) in mixed-mode applications. This device enables I

C and similar bus systems to

be extended, without degradation of performance even during level shifting.

The TCA9509 buffers both the serial data (SDA) and the serial clock (SCL) signals on the I

C bus, thus allowing

400-pF bus capacitance on the B-side. This device can also be used to isolate two halves of a bus for voltage

and capacitance.

The TCA9509 has two types of drivers – A-side drivers and B-side drivers. All inputs and B-side I/O’s are

overvoltage tolerant to 5.5V. The A-side I/O’s are overvoltage tolerant to 5.5V when the device is unpowered

(VCCB and/or VCCA=0V).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (19 pages)

PAGE 1
TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com 2 LEVEL-TRANSLATING I C/SMBUS BUS REPEATER Check for Samples: TCA9509 FEATURES 1 • • • • • • • • • • Two-Channel Bidirectional Buffer I2C Bus and SMBus Compatible Operating Supply Voltage Range of 2.7 V to 5.5 V on B side Operating Voltage Range of 0.9 V to VCCB – 1V on A Side Voltage-Level Translation From 0.9 V to (VCCB - 1V) and 2.7 V to 5.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com ORDERING INFORMATION TA ORDERABLE PART NUMBERS PACKAGES (1) (2) TOP-SIDE MARKING –40°C to 85°C TCA9509RVHR RVH - QFN Tape and reel 7K –40°C to 85°C TCA9509DGKR DGK - MSOP Tape and reel 7KQ (1) (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com TERMINAL FUNCTIONS NO. NAME DESCRIPTION 1 VCCA A-side supply voltage (0.9V to VCCB - 1V) 2 SCLA Serial clock bus, A side. 3 SDAA Serial data bus, A side. 4 GND Supply ground 5 EN 6 SDAB Serial data bus, B side. Connect to VCCB through a pullup resistor. 7 SCLB Serial clock bus, B side. Connect to VCCB through a pullup resistor. 8 VCCB B-side and device supply voltage (2.7 V to 5.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCCB Supply voltage range –0.5 6 V VCCA Supply voltage range –0.5 6 V VI Enable input voltage range (2) –0.5 6 V VI/O I2C bus voltage range (2) –0.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com ELECTRICAL CHARACTERISTICS VCCB = 2.7 V to 5.5 V, VCCA = 0.9 V to (VCCB-1), TA = –40°C to 85°C (unless otherwise noted) PARAMETER VIK TEST CONDITIONS II = –18 mA Input clamp voltage VOL SDAA, SCLA IOL = 10 μA, VILA = VILB = 0 V, VCCA = 0.9 to 1.2V SDAA, SCLA IOL = 20 μA, VILA = VILB = 0 V, 1.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com I2C INTERFACE TIMING REQUIREMENTS TA = –40°C to 85°C (unless otherwise noted) PARAMETER Propagation delay tPHL Propagation delay tPLH trise Transition time tfall Transition time tPLH2 Propagation delay 50% of initial low on Port A to 1.5 V on Port B fMAX Maximum switching frequency (1) VCCA (INPUT) VCCB (OUTPUT) 1.9 V 5.0 V TEST CONDITIONS MIN TYP (1) MAX UNIT 123.1 127.2 132. 8 port B to port A 88.1 88.8 89.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com VCC Input 50% 50% 0V Output 70% 30% 70% 30% tf VCC VOL tr A. RT termination resistance should be equal to ZOUT of pulse generators. B. CL includes probe and jig capacitance. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, slew rate ≥ 1 V/ns. D. The outputs are measured one at a time, with one transition per measurement. E. tPLH and tPHL are the same as tpd.
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TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com APPLICATION INFORMATION A typical application is shown in Figure 3. In this example, the system master is running on a 1.1-V I2C bus, and the slave is connected to a 3.3-V bus. Both buses run at 400 kHz. Master devices can be placed on either bus. The TCA9509 is 5-V tolerant, so it does not require any additional circuitry to translate between 0.9-V to 5.5-V bus voltages and 2.7-V to 5.5-V bus voltages.
PAGE 9
TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com 2 V/DIV 9th CLOCK PULSE — ACKNOWLEDGE SCL SDA VOL OF TCA9509 VOL OF SLAVE Figure 5. Bus B (2.7-V to 5.
PAGE 10
TCA9509 SCPS225B – AUGUST 2011 – REVISED JANUARY 2012 www.ti.com REVISION HISTORY Changes from Original (August 2011) to Revision A Page • Corrected VCCA operating voltage lower limit, to 0.9V at multiple instances in document. ................................................... 1 • Changed Operating Supply Voltage Range value error in FEATURES for B side. Changed from (0.9 V to 5.5 V on B side) to (2.7 V to 5.5 V on B side). ...........................................................................
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 15-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TCA9509DGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TCA9509RVHR X2QFN RVH 8 5000 180.0 8.4 1.8 1.8 0.5 4.0 8.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 15-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TCA9509DGKR VSSOP DGK 8 2500 364.0 364.0 27.0 TCA9509RVHR X2QFN RVH 8 5000 202.0 201.0 28.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.