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Table Of Contents

DCU PACKAGE

(TOP VIEW)

SCL_B

CCB

3 6

SDA_B

GND

CCA

SDA_A SCL_A

YZP PACKAGE

(BOTTOM VIEW)

SDA_A

SCL_A

3 6

CCA

CCB

GND

SCL_B

SDA_B

DQM PACKAGE

(TOP VIEW)

SDA_A

SCL_A

CCA

CCB

GND

SCL_B

SDA_B

TCA9406

www.ti.com

SCPS221B –OCTOBER 2010–REVISED JUNE 2013

2-BIT BIDIRECTIONAL 1MHz, I

C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR WITH

8kV HBM ESD

Check for Samples: TCA9406

FEATURES

TYPICAL LEVEL-SHIFTER

APPLICATIONS

• 2-Bit Bidirectional Translator for SDA and SCL

Lines in Mixed-Mode I

C Applications • I

C/SMBus

• 5.5-V Tolerant OE Input • UART

• Level Translation Range • GPIO

– 1.8 V to 2.5 V/3.3 V/5 V

– 2.5 V to 2.5 V/3.3 V/5 V

– 3.3 V to 3.3 V/5 V

• Internal10-kΩ Pullup Resistor on Each Port

and Option to Add External Pullup Resistor if

Required

• Provides Bidirectional Voltage Translation

With No Direction Pin

• I

off

Support Partial Power Down (V

= 0 V)

With 2 mA

• High-Impedance Output SCL1, SDA1, SCL2,

and SDA2 Pins When OE = Low or V

= 0 V

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Protection Exceeds JESD 22

– A Port

– 2500-V Human-Body Model (A114-B)

– 250-V Machine Model (A115-A)

– 1500-V Charged-Device Model (C101)

– B Port

– 8-kV Human-Body Model (A114-B)

– 250-V Machine Model (A115-A)

– 1500-V Charged-Device Model (C101)

DESCRIPTION

The TCA9406 is a dual bidirectional I

C-Bus and SMBus Voltage-Level translator with enable (OE) Input. It is

operational from 1.65 V to 3.6 V on A-Port and 2.3 V to 5.5 V on B-port. The Output Enable (OE) input is

referenced to V

CCA

, but is 5.5V tolerant

The device can also be used as a general purpose level-translator, supporting push-pull driving of the A and

B ports. When driven with push-pull devices on both sides the TCA9406 can support up to 24Mps.

Under normal I2C and SMBus operation or other open drain configurations, the device can support up to

2Mbps. It is compatible with a standard I

C bus 100 kHz, 400 kHz and 1 MHz at both sides of A-Port and B-

Port.

The TCA9406 features internal 10kOHM pullup resistors. Additional external pullup resistors can be added to

the bus to reduce total pullup resistance.

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 (21 pages)

PAGE 1
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 2-BIT BIDIRECTIONAL 1MHz, I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR WITH 8kV HBM ESD Check for Samples: TCA9406 FEATURES 1 • • • • • • • • • 2-Bit Bidirectional Translator for SDA and SCL Lines in Mixed-Mode I2C Applications 5.5-V Tolerant OE Input Level Translation Range – 1.8 V to 2.5 V/3.3 V/5 V – 2.5 V to 2.5 V/3.3 V/5 V – 3.3 V to 3.
PAGE 2
TCA9406 SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 www.ti.com The TCA9406 is not a bus buffer like the PCA9515B and PCA9517. The OE feature can be utilized to isolate one side of the bus from the other by placing both sides into a high impedence state. The Enable (OE) should be tied to GND through a pulldown resistor to ensure the high-impedance state during power up or power down. The minimum value of the resistor is determined by the current-sourcing capability of the driver.
PAGE 3
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 ABSOLUTE MAXIMUM RATINGS (1) over recommended operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCCA Supply voltage range –0.5 4.6 V VCCB Supply voltage range –0.5 6.5 V A port –0.5 4.6 B port –0.5 6.5 OE input –0.5 6.5 A port –0.5 4.6 B port –0.5 6.5 A port –0.5 VCCA + 0.5 B port –0.5 VCCB + 0.
PAGE 4
TCA9406 SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1) (2) (3) over recommended operating free-air temperature range (unless otherwise noted) TEST CONDITIONS VCCA VCCB VOHA IOH = –20 μA, VIB ≥ VCCB – 0.4 V 1.65 V to 3.6 V 2.3 V to 5.5 V VOLA IOL = 1 mA, VIB ≤ 0.15 V 1.65 V to 3.6 V 2.3 V to 5.5 V VOHB IOH = –20 μA, VIA ≥ VCCA – 0.2 V 1.65 V to 3.6 V 2.3 V to 5.5 V VOLB IOL = 1 mA, VIA ≤ 0.15 V 1.65 V to 3.6 V 2.3 V to 5.5 V 1.65 V to 3.6 V 2.
PAGE 5
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 TIMING REQUIREMENTS over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted) VCCB = 2.5 V ± 0.2 V MIN Data rate tw Pulse duration MAX Push-pull driving Open-drain driving Push-pull driving Open-drain driving Data inputs VCC = 3.3 V ± 0.3 V MIN VCC = 5 V ± 0.
PAGE 6
TCA9406 SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 www.ti.com SWITCHING CHARACTERISTICS over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB = 2.5 V ± 0.
PAGE 7
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 SWITCHING CHARACTERISTICS over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted) PARAMETER FROM (INPUT) TO (OUTPUT) TEST CONDITIONS VCCB = 2.5 V ± 0.
PAGE 8
TCA9406 SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 www.ti.com SWITCHING CHARACTERISTICS over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB = 3.3 V ± 0.
PAGE 9
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 PRINCIPLES OF OPERATION Application Notes Figure 1. Typical Design Example The TCA9406 has a VCC isolation feature known as Ioff partial power down and backdrive protection. If a cable is connected, and the connected external system is still powered on, the system can be put into standby mode by shutting down the power rail. In this state, the TCA9406 has a leakage current of approximately 2 µA caused by current flow from powered-on system.
PAGE 10
TCA9406 SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 www.ti.
PAGE 11
TCA9406 www.ti.com SCPS221B – OCTOBER 2010 – REVISED JUNE 2013 Changes from Revision A (Febuary 2013) to Revision B • Page Removed ordering information table, information now located in POA. ...............................................................................
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.com 14-Nov-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 23-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TCA9406DCTR 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 SM8 DCT 8 3000 180.0 13.0 3.35 4.5 1.55 4.0 12.0 Q3 TCA9406DCUR US8 DCU 8 3000 180.0 8.4 2.25 3.35 1.05 4.0 8.0 Q3 TCA9406YZPR DSBGA YZP 8 3000 180.0 8.4 1.11 2.1 0.56 4.0 8.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 23-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TCA9406DCTR SM8 DCT 8 3000 182.0 182.0 20.0 TCA9406DCUR US8 DCU 8 3000 202.0 201.0 28.0 TCA9406YZPR DSBGA YZP 8 3000 182.0 182.0 17.
PAGE 16
MECHANICAL DATA MPDS049B – MAY 1999 – REVISED OCTOBER 2002 DCT (R-PDSO-G8) PLASTIC SMALL-OUTLINE PACKAGE 0,30 0,15 0,65 8 0,13 M 5 0,15 NOM ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ 2,90 2,70 4,25 3,75 Gage Plane PIN 1 INDEX AREA 1 0,25 4 0° – 8° 3,15 2,75 0,60 0,20 1,30 MAX Seating Plane 0,10 0,10 0,00 NOTES: A. B. C. D. 4188781/C 09/02 All linear dimensions are in millimeters. This drawing is subject to change without notice.
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D: Max = 1.918 mm, Min =1.858 mm E: Max = 0.918 mm, Min =0.
PAGE 21
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.