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FEATURES

DB OR PW PACKAGE

(TOP VIEW)

C1+

V+

C1−

C2+

C2−

V−

RIN

FORCEOFF

GND

DOUT

FORCEON

DIN

INVALID

ROUT

APPLICATIONS

DESCRIPTION/ORDERING INFORMATION

TRSF3221E

3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER

WITH ± 15-kV IEC ESD PROTECTION

SLLS822 – JULY 2007

• ESD Protection for RS-232 Pins

– ± 15-kV Human-Body Model (HBM)

– ± 8-kV IEC 61000-4-2 Contact Discharge

– ± 15-kV IEC 61000-4-2 Air-Gap Discharge

• Operates With 3-V to 5.5-V V

Supply

• Operates up to 1 Mbit/s

• Low Standby Current . . . 1 μ A Typ

• External Capacitors . . . 4 × 0.1 μ F

• Accepts 5-V Logic Input With 3.3-V Supply

• RS-232 Bus-Pin ESD Protection Exceeds

± 15 kV Using HBM

• Auto-Powerdown Feature Automatically

Disables Drivers for Power Savings

• Battery-Powered, Hand-Held, and Portable

Equipment

• PDAs and Palmtop PCs

• Notebooks, Sub-Notebooks, and Laptops

• Digital Cameras

• Mobile Phones and Wireless Devices

The TRSF3221E consists of one line driver, one line receiver, and a dual charge-pump circuit with ± 15-kV IEC

ESD protection pin to pin (serial-port connection pins, including GND). The TRSF3221E provides the electrical

interface between an asynchronous communication controller and the serial-port connector. The charge pump

and four small external capacitors allow operation from a single 3-V to 5.5-V supply. The TRSF3221E operates

at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/ μ s to 150 V/ μ s.

Flexible control options for power management are available when the serial port is inactive. The

auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of

operation, if the TRSF3221E does not sense a valid RS-232 signal on the receiver input, the driver output is

disabled. If FORCEOFF is set low and the enable ( EN) input is high, both the driver and receiver are shut off,

and the supply current is reduced to 1 μ A. Disconnecting the serial port or turning off the peripheral drivers

causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and

FORCEOFF are high. With auto-powerdown enabled, the device is activated automatically when a valid signal is

applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver

input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7 V or less than –2.7 V, or has

been between –0.3 V and 0.3 V for less than 30 μ s. INVALID is low (invalid data) if the receiver input voltage is

between –0.3 V and 0.3 V for more than 30 μ s. See Figure 5 for receiver input levels.

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 (20 pages)

PAGE 1
www.ti.com TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION FEATURES • • • • • • • • ESD Protection for RS-232 Pins – ±15-kV Human-Body Model (HBM) – ±8-kV IEC 61000-4-2 Contact Discharge – ±15-kV IEC 61000-4-2 Air-Gap Discharge Operates With 3-V to 5.5-V VCC Supply Operates up to 1 Mbit/s Low Standby Current . . . 1 μA Typ External Capacitors . . . 4 × 0.1 μF Accepts 5-V Logic Input With 3.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.
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www.ti.com TRSF3221E 3-V TO 5.
PAGE 4
TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 Table 1. 1-Mbit/s RS-232 Parts DRIVER NO. RECEIVER NO. ESD SUPPLY VCC (V) FEATURE PIN/PACKAGE TRSF3221E 1 1 ±15-kV Air-Gap, ±8-kV Contact, ±15-kV HBM 3.3 or 5 Auto-powerdown 16-pin SOIC, SSOP, TSSOP TRSF3232E 2 2 ±15-kV Air-Gap, ±8-kV Contact, ±15-kV HBM 3.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range (2) –0.3 6 V V+ Positive output supply voltage range (2) –0.3 7 V 0.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 DRIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER TEST CONDITIONS MIN TYP (2) MAX VOH High-level output voltage DOUT at RL = 3 kΩ to GND, DIN = GND 5 5.4 VOL Low-level output voltage DOUT at RL = 3 kΩ to GND, DIN = VCC –5 –5.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 RECEIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER MIN TYP (2) VCC – 0.6 V VCC – 0.1 V TEST CONDITIONS VOH High-level output voltage IOH = –1 mA VOL Low-level output voltage IOL = 1.6 mA MAX V 0.4 VCC = 3.3 V 1.6 2.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.
PAGE 9
www.ti.com TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION SLLS822 – JULY 2007 PARAMETER MEASUREMENT INFORMATION FORCEON 3V Generator (see Note B) 3V Input RS-232 Output 50 Ω RL tTHL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V 3V 3V Output SR(tr) + tTLH −3 V −3 V 6V t THL or tTLH VOH VOL VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B.
PAGE 10
TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 PARAMETER MEASUREMENT INFORMATION (continued) 3V Input VCC 1.5 V GND S1 0V tPZH (S1 at GND) tPHZ (S1 at GND) RL 3 V or 0 V 1.5 V VOH Output 50% Output CL (see Note A) EN Generator (see Note B) 50 Ω 0.3 V tPLZ (S1 at VCC) tPZL (S1 at VCC) 0.3 V Output 50% VOL TEST CIRCUIT NOTES: A. B. C. D. VOLTAGE WAVEFORMS CL includes probe and jig capacitance.
PAGE 11
TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 PARAMETER MEASUREMENT INFORMATION (continued) 2.7 V EN = GND 3V 0V Receiver Input 0V ROUT Generator (see Note B) 2.7 V −2.7 V −2.7 V 50 Ω −3 V tvalid tinvalid VCC Autopowerdown INVALID INVALID Output CL = 30 pF (see Note A) FORCEOFF FORCEON DIN DOUT 50% VCC 50% VCC 0V ten V+ ≈V+ Supply Voltages 0.3 V VCC 0V 0.
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TRSF3221E 3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION www.ti.com SLLS822 – JULY 2007 APPLICATION INFORMATION EN 16 1 2 VCC C1+ 15 + 3 C1 + + − − V+ Autopowerdown C3(1) 4 GND − 14 13 6 C2− 7 RIN 12 C2 11 V− 10 C4 + DOUT C2+ + − CBYPASS = 0.1 µF C1− 5 − FORCEOFF 8 9 FORCEON DIN INVALID ROUT 5 kΩ (1) C3 can be connected to VCC or GND. NOTES: A. Resistor values shown are nominal. B.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 14
PACKAGE OPTION ADDENDUM www.ti.com 21-Mar-2013 PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 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 12.0 16.0 Q1 TRSF3221ECDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 TRSF3221ECPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 TRSF3221EIDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TRSF3221ECDBR SSOP DB 16 2000 367.0 367.0 38.0 TRSF3221ECPWR TSSOP PW 16 2000 367.0 367.0 35.0 TRSF3221EIDBR SSOP DB 16 2000 367.0 367.0 38.0 TRSF3221EIPWR TSSOP PW 16 2000 367.0 367.0 35.
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MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
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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.