Example: marketing

15kV ESD Protected, +3V, 1µA, 250kbps, RS-232 Transmitters ...

1 ICL3221EM 15kv ESD protected , +3V, 1 A, 250kbps , RS-232 Transmitters /ReceiversICL3221 EMThe Intersil ICL3221EM devices are powered RS-232 Transmitters /receivers which meet ElA/TIA-232 and specifications. Additionally, they provide 15kv ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs ( RS-232 pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with manual and automatic power-down functions, reduce the standby supply current to a 1 A trickle.

1 ICL3221EM ±15kV ESD Protected, +3V, 1µA, 250kbps, RS-232 Transmitters/Receivers ICL3221EM The Intersil ICL3221EM devices are 3.0V powered RS-232 transmitters/receivers which meet ElA/TIA-232 and

Tags:

  Receiver, Transmitter, Protected, 15kv, 15kv esd protected, 250kbps, Rs 232 transmitters receivers

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Other abuse

Transcription of 15kV ESD Protected, +3V, 1µA, 250kbps, RS-232 Transmitters ...

1 1 ICL3221EM 15kv ESD protected , +3V, 1 A, 250kbps , RS-232 Transmitters /ReceiversICL3221 EMThe Intersil ICL3221EM devices are powered RS-232 Transmitters /receivers which meet ElA/TIA-232 and specifications. Additionally, they provide 15kv ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs ( RS-232 pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with manual and automatic power-down functions, reduce the standby supply current to a 1 A trickle.

2 Small footprint packaging, and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are guaranteed at worst case load conditions. The device is fully compatible with ICL3221EM features an automatic power-down function which powers down the on-chip power-supply and driver circuits. This occurs when an attached peripheral device is shut off or the RS-232 cable is removed, conserving system power automatically without changes to the hardware or operating system. These devices power up again when a valid RS-232 voltage is applied to any receiver 1 summarizes the features of the Literature Technical Brief TB363 Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Features ESD Protection for RS-232 I/O Pins to 15kv (IEC61000) Drop in Replacement for MAX3221E RS-232 Compatible with VCC = Meets EIA/TIA-232 and Specifications at 3V Latch-Up Free On-Chip Voltage Converters Require Only Four External F Capacitors Manual and Automatic Power-down Features receiver Hysteresis For Improved Noise Immunity Guaranteed Minimum Data Rate.

3 250kbps Power Supply Range .. Single + to + Low Supply Current in Power-down State .. 1 A Pb-Free (RoHS Compliant)Applications Any System Requiring RS-232 Communication Ports- Battery Powered, Hand-Held, and Portable Equipment- Laptop Computers, Notebooks, Palmtops- Modems, Printers and other Peripherals-Digital Cameras- Cellular/Mobile PhonesTABLE 1. SUMMARY OF FEATURESPARTNUMBERNUMBER OF TxNUMBER OF RxDATA RATE (kbps) receiver ENABLE FUNCTION?READY OUTPUT?MANUAL POWER-DOWN?AUTOMATIC POWER-DOWN FUNCTION?ICL3221EM11250 YesNoYesYesOrdering InformationPARTNUMBERPARTMARKINGTEMP RANGE ( C)PACKAGEPKG. DWG. #ICL3221 EMVZ* (Notes 1, 2, 3)3221 EMVZ-55 to +12516 Ld :1.

4 Add -T suffix for tape and reel. Please refer to TB347 for details on reel These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J For Moisture Sensitivity Level (MSL), please see device information page for ICL3221EM. For more information on MSL please see techbrief : These devices are sensitive to electrostatic discharge; follow proper IC Handling or 1-888-468-3774|Intersil (and design) is a registered trademark of Intersil Americas Intersil Americas Inc.

5 2009. All Rights ReservedAll other trademarks mentioned are the property of their respective 17, 17, 2009 Pin ConfigurationsICL3221EM(16 LD TSSOP)TOP VIEWENC1+V+C1-C2+C2-V-R1 INFORCEOFFGNDT1 OUTFORCEONT1 INR1 OUTVCCINVALID16151413121110912345678 Pin DescriptionsPINPINNUMBERFUNCTIONEN1 Active low receiver enable controlC1+2 External capacitor (voltage doubler) is connected to this +3 Internally generated positive transmitter supply (+ ).C1-4 External capacitor (voltage doubler) is connected to this +5 External capacitor (voltage inverter) is connected to this capacitor (voltage inverter) is connected to this generated negative transmitter supply ( ).

6 R1IN8 15kv ESD protected , RS-232 compatible receiver level receiver low output that indicates if no valid RS-232 levels are present on any receiver compatible transmitter high input to override automatic power-down circuitry thereby keeping Transmitters active (FORCEOFF must be high).T1 OUT13 15kv ESD protected , RS-232 level (nominally ) transmitter power supply input ( to ).FORCEOFF16 Active low to shut down Transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2). 17, 2009 Typical Operating F+ F+ F11132437V+ V-C1+C1-C2+C2-+ F56R1 OUTR1 INR1895k C1C2+C3C4EN1 GND+ + F14 TTL/CMOSLOGIC LEVELSRS-232 LEVELSFORCEONFORCEOFF1216 VCC10 INVALIDTO POWERCONTROL 17, 2009 Absolute Maximum RatingsThermal InformationVCC to GND.

7 To 6VV+ to GND .. to 7VV- to GND .. + to -7VV+ to V- .. 14 VInput VoltagesTIN, FORCEOFF, FORCEON, EN, SHDN .. to 6 VRIN .. 25 VOutput VoltagesTOUT .. , INVALID .. to VCC + Circuit DurationTOUT .. ContinuousESD Rating .. See Specification Table on page 5 Thermal Resistance (Typical, Note 4) JA ( C/W)16 Ld TSSOP Package ..145 Maximum Junction Temperature (Plastic Package) .. +150 CMaximum Storage Temperature Range .. -65 C to +150 CPb-Free Reflow Profile ..see link ConditionsOperating Voltage Range .. + to + Range ..-55 C to +125 CCAUTION: Do not operate at or near the maximum ratings listed for extended periods of time.

8 Exposure to such conditions may adversely impactproduct reliability and result in failures not covered by :4. JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for SpecificationsTest Conditions: VCC = 10%, C1 - C4 = F; Unless Otherwise Specified. Typicals are at TA = +25 C. Boldface limits apply over the operating temperature range, -55 C to +125 CONDITIONSTEMP( C)MIN(Note 6)TYPMAX(Note 6) UNITSDC CHARACTERISTICSS upply Current, Automatic Power-downAll RIN Open, FORCEON = GND, FORCEOFF = ASupply Current, Power-downFORCEOFF = SHDN = ASupply Current, Automatic Power-down DisabledAll Outputs Unloaded, FORCEON = FORCEOFF = SHDN = VCCVCC = AND transmitter INPUTS AND receiver OUTPUTSI nput Logic Threshold LowTIN, FORCEON, FORCEOFF, EN, Logic Threshold HighTIN, FORCEON, FORCEOFF, EN, SHDNVCC = Leakage CurrentTIN, FORCEON, FORCEOFF, EN, SHDNFull- 10 AOutput Leakage CurrentFORCEOFF = GND or EN = VCCFull- 10 AOutput Voltage LowIOUT = Voltage HighIOUT = - - POWER-DOWN(FORCEON = GND, FORCEOFF = VCC)

9 receiver Input Thresholds to Enable TransmittersPower Up (see Figure 6) Input Thresholds to Disable TransmittersPower Down (see Figure 6) Output Voltage Low IOUT = Output Voltage High IOUT = - Threshold to Transmitters Enabled Delay (tWU)25-100- sReceiver Positive or Negative Threshold to INVALID High Delay (tINVH)25-1- 17, 2009 receiver Positive or Negative Threshold to INVALID Low Delay (tINVL)25-30- sRECEIVER INPUTI nput Voltage Range25-25-25 VInput Threshold LowVCC = Threshold HighVCC = Resistance25357k transmitter OUTPUTO utput Voltage SwingAll transmitter Outputs Loaded with 3k to GroundFull ResistanceVCC = V+ = V- = 0V, transmitter Output = 2 VFull30010M- Output Short-Circuit CurrentFull- 35 60mAOutput Leakage CurrentVOUT = 12V, VCC = 0V or 3V to ,Automatic Power-down or FORCEOFF = SHDN = GNDFull-- 25 ATIMING CHARACTERISTICSM aximum Data RateRL = 3k , CL = 1000pF, One transmitter SwitchingFull250500-kbpsReceiver Propagation DelayReceiver Input to receiver Output.

10 CL = sReceiver Output Enable Time Normal Operation25-200-nsReceiver Output Disable Time Normal Operation25-200-nsTransmitter SkewtPHL to tPLH (Note 5)25-1001000nsReceiver SkewtPHL to tPLH 25-501000nsTransition Region Slew RateVCC = , RL = 3k to 7k ,Measured from 3V to -3V or -3V to 3 VCL = 150pF to 2500pF254-30V/ sCL = 150pF to 1000pF256-30V/ sESD PERFORMANCERS-232 Pins (TOUT, RIN)Human Body Model25- 15-kVIEC61000-4-2 Contact Discharge25- 8-kVIEC61000-4-2 Air Gap Discharge25- 15-kVAll Other PinsHuman Body Model25- 2-kVNOTES:5. transmitter skew is measured at the transmitter zero crossing Parts are 100% tested at +25 C.


Related search queries