MAX208 5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER WITH ±15 kV ESD PROTECTION
SLLS596B − OCTOBER 2003 − REVISED JUNE 2006
D ESD Protection for RS-232 I/O Pins D D D D D D D
− ±15 kV − Human-Body Model (HBM) Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards Operates at 5-V VCC Supply Four Drivers and Four Receivers Operates up to 120 kbit/s External Capacitors . . . 4 × 0.1 µF Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II Applications − Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment
DB, DW, OR NT PACKAGE (TOP VIEW)
DOUT2 DOUT1 RIN2 ROUT2 DIN1 ROUT1 RIN1 GND VCC C1+ V+ C1−
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
DOUT3 RIN3 ROUT3 DIN4 DOUT4 DIN3 DIN2 ROUT4 RIN4 V− C2− C2+
description/ordering information
The MAX208 device consists of four line drivers, four line receivers, and a dual charge-pump circuit with ±15-kV HBM ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and 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 5-V supply. The devices operate at data signaling rates up to 120 kbit/s and a maximum of 30-V/µs driver output slew rate. ORDERING INFORMATION
TA PDIP (NT) SOIC (DW) SSOP (DB) PDIP (NT) SOIC (DW) SSOP (DB) PACKAGE† Tube of 15 Tube of 25 0 C 70°C 0°C to 70 C Reel of 2000 Tube of 60 Reel of 2000 Tube of 15 Tube of 25 –40 C 85 C –40°C to 85°C Reel of 2000 Tube of 60 Reel of 2000 ORDERABLE PART NUMBER MAX208CNT MAX208CDW MAX208CDWR MAX208CDB MAX208CDBR MAX208INT MAX208IDW MAX208IDWR MAX208IDB MAX208IDBR MB208I MAX208I MA208C MAX208INT MAX208C TOP-SIDE MARKING MAX208CNT
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
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 Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2006, Texas Instruments Incorporated
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SLLS596B − OCTOBER 2003 − REVISED JUNE 2006
MAX208 5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER WITH ±15 kV ESD PROTECTION
FUNCTION TABLES
EACH DRIVER INPUT DIN L H OUTPUT DOUT H L
H = high level, L = low level EACH RECEIVER INPUT RIN L H Open OUTPUT ROUT H L H
H = high level, L = low level, Open = input disconnected or connected driver off
logic diagram (positive logic)
5 DIN1 18 TTL/CMOS Inputs DIN2 19 DIN3 21 DIN4 20 DOUT4 24 DOUT3 1 DOUT2 RS-232 Outputs 2 DOUT1
6 ROUT1 4 ROUT2 TTL/CMOS Outputs ROUT3 17 ROUT4 22
7 RIN1 3 RIN2 23 RIN3 16 RIN4 RS-232 Inputs
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MAX208 5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER WITH ±15 kV ESD PROTECTION
SLLS596B − OCTOBER 2003 − REVISED JUNE 2006
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V Positive charge pump voltage range, V+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC − 0.3 V to 14 V Negative charge pump voltage range, V− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –14 V to 0.3 V Supply voltage difference, V+ − V− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 V Input voltage range, VI: Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to V+ + 0.3 V Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V Output voltage range, VO: Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V− − 0.3 V to V+ + 0.3 V Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VCC + 0.3 V Short-circuit duration: DOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Package thermal impedance, θJA (see Notes 2 and 3): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W (see Notes 2 and 3): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . 46°C/W (see Notes 2 and 4): NT package . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltages are with respect to network GND. 2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. 3. The package thermal impedance is calculated in accordance with JESD 51-7. 4. The package thermal impedance is calculated in accordance with JESD 51-3.
recommended operating conditions (see Note 5 and Figure 4)
MIN Supply voltage VIH VIL VI TA Driver high-level input voltage Driver low-level input voltage Driver input voltage Receiver input voltage MAX208C Operating free-air temperature MAX208I NOTE 5: Test conditions are C1−C4 = 0.1 µF at VCC = 5 V ± 0.5 V. DIN DIN DIN 0 −30 0 −40 4.5 2 0.8 5.5 30 70 85 V °C NOM 5 MAX 5.5 UNIT V V V
electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 5 and Figure 4)
PARAMETER ICC Supply current No load, NOTE 5: Test conditions are C1−C4 = 0.1 µF at VCC = 5 V ± 0.5 V. TEST CONDITIONS VCC = 5 V, TA = 25°C MIN TYP 11 MAX 20 UNIT mA
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SLLS596B − OCTOBER 2003 − REVISED JUNE 2006
MAX208 5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER WITH ±15 kV ESD PROTECTION
DRIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 5 and Figure 4)
PARAMETER VOH VOL IIH IIL IOS† High-level output voltage Low-level output voltage High-level input current Low-level input current Short-circuit output current TEST CONDITIONS DOUT at RL = 3 kΩ to GND, DOUT at RL = 3 kΩ to GND, VI = VCC VI at 0 V VCC = 5.5 V, VO = 0 V DIN = GND DIN = VCC MIN 5 −5 TYP 9 −9 15 −15 ±10 200 −200 ±60 MAX UNIT V V µA µA mA
ro Output resistance VCC, V+, and V− = 0 V, VO = ±2 V 300 W † Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one output should be shorted at a time. NOTE 5: Test conditions are C1−C4 = 0.1 µF at VCC = 5 V ± 0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 5 and Figure 4)
PARAMETER Maximum data rate tPLH (D) tPHL (D) tsk(p) SR(tr) Propagation delay time, low- to high-level output Propagation delay time, high- to low-level output Pulse skew§ Slew rate, transition region (see Figure 1) TEST CONDITIONS CL = 50 to 1000 pF, One DOUT switching, CL = 2500 pF, All drivers loaded, CL = 2500 pF, All drivers loaded, CL = 150 pF to 2500 pF, See Figure 2 CL = 50 pF to 2500 pF, VCC = 5 V RL = 3 kΩ to 7 kΩ, See Figure 1 RL = 3 kΩ, See Figure 1 RL = 3 kΩ, See Figure 1 RL = 3 kΩ to 7 kΩ, RL = 3 kΩ to 7 kΩ, 3 MIN 120 2 2 300 6 30 TYP† MAX UNIT kbit/s µs µs ns V/µs
† All typical values are at VCC = 5 V, and TA = 25°C. § Pulse skew is defined as |tPLH − tPHL| of each channel of the same device. NOTE 5: Test conditions are C1−C4 = 0.1 µF at VCC = 5 V ± 0.5 V.
ESD protection
PIN DOUT, RIN Human-Body Model TEST CONDITIONS TYP ±15 UNIT kV
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MAX208 5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER WITH ±15 kV ESD PROTECTION
SLLS596B − OCTOBER 2003 − REVISED JUNE 2006
RECEIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 5 and Figure 4)
PARAMETER VOH VOL VIT+ VIT− Vhys ri High-level output voltage Low-level output voltage Positive-going input threshold voltage Negative-going input threshold voltage Input hysteresis (VIT+ − VIT−) Input resistance IOH = −1 mA IOL = 1.6 mA VCC = 5 V, TA = 25°C VCC = 5 V, TA = 25°C VCC = 5 V VI = ±3 V to ±25 V, VCC = 5 V, TA = 25°C TEST CONDITIONS MIN 3.5 0.4 1.7 0.8 0.2 3 1.2 0.5 5 1 7 2.4 TYP MAX UNIT V V V V V kW
NOTE 5: Test conditions are C1−C4 = 0.1 µF at VCC = 5 V ± 0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 5 and Figure 3)
PARAMETER tPLH (R) tP
