TP3232N-SR

3PEAK TP3232N/TP3222N Microamp Supply-Current, 3V to 5.5V, Up to 470kbps RS-232 Transceivers Features Description  Meets EIA/TIA-232 and V.28/V.24 Specifications The 3PEAK TP32xxN devices are 3.0V to 5.5V RS-232 at 3V transmitters/receivers which meet ElA/TIA-232 and V.28 /V.24 specifications, even at VCC = 3.0V. Each receiver  Two Drivers and Two Receivers  Constant Date Rate Under Different C-Loading  Operates Up to 470kbps hysteresis of 0.5V, and can accept ±25V inputs. Data  On-Chip Voltage Converters Require Only Four rates greater than 470kbps are guaranteed at worst case External 0.1μF Capacitors load conditions. The devices are fully compatible with  Wide Power Supply Range: Single +3V to +5.5V 3.3V-only systems, mixed 3.3V and 5.0V systems, and  1μA Low Power Shutdown With Receivers Active 5.0V-only systems.  The devices have a typical threshold of 1.26V, a typical The TP3232N/TP3222N has two receivers and two (TP3222N)  converts TIA/RS-232-F inputs to TTL/CMOS levels. transmitters. The TP3222N features a 1μA shutdown Drop-in Replacements for SP3232, SP3222, mode that reduces power consumption in battery MAX3232, MAX3222 powered portable systems. The TP3222N receivers TP3232N is a Low Power Upgrade for 5V HIN232, remain active in shutdown mode, allowing monitoring of HIN202, MAX232, MAX242 external devices while consuming only 1μA of supply current. Applications  Battery-Powered Equipment  Cell Phones Smart Phones  Cell-Phone Data Cables  Notebook, Subnotebook and Palmtop Computers  Printers  xDSL Modems 3PEAK and the 3PEAK logo are registered trademarks of 3PEAK INCORPORATED. All other trademarks are the property of their respective owners. TP3232N Slew Rate vs. Load Capacitance Pin Configuration (Top View) 20 18 TP3222N 18-Pin SOIC 16 (-S and -T Suffixes) (-S and -T Suffixes) EN C1+ 1 16 Vcc 1 18 SHDN C1+ 2 17 VCC SLEW RATE (V/μs) TP3232N 16-Pin SOIC/TSSOP 12 10 8 V+ 2 15 GND V+ 3 16 GND C1- 3 14 TOUT1 C1- 4 15 T1OUT C2+ 4 13 RIN1 C2+ 5 14 R1IN 4 C2- 5 12 ROUT1 C2- 6 13 R1OUT 2 V- 6 11 TIN1 V- 7 12 T1IN 0 TOUT2 7 10 TIN2 T2OUT 8 11 T2IN RIN2 8 www.3peakic.com.cn 9 ROUT2 R2IN 9 10 R2OUT TP3232N 14 Competitor 6 0 1000 2000 3000 4000 5000 LOAD CAPACITANCE (pF) Rev.B.01 1 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Order Information Model Name Order Number Package Transport Media, Quantity Marking Information TP3232N TP3232N-SR 16-Pin SOIC Tape and Reel, 2,500 3232N TP3232N TP3232N-TR 16-Pin TSSOP Tape and Reel, 3,000 3232N TP3222N TP3222N-SR 18-Pin SOIC Tape and Reel, 3,000 3222N Absolute Maximum Ratings Note 1 Recommended Operating Conditions VCC to GND................................................................-0.3V to +6V Temperature Range……………………………………-40°C to +125°C V+ to GND (Note 1) ...................................................-0.3V to +7V Supply Voltage (VCC) …………….………………………….. 3.3V or 5V V- to GND (Note 1) ...................................................+0.3V to -7V Rx Input Voltage ………………………………………….. -15V to +15V V+ + |V-| (Note 1)...................................................................+13V Thermal Resistance, ΘJA (Typical) Note 1 16-Pin SOIC Package ………………………………….… 100°C/W Input Voltages TIN, EN, SHDN.....................................................-0.3V to +6V 16-Pin TSSOP Package …………………..……………... 145°C/W R_IN to GND ...................................................................±25V 18-Pin SOIC Package …..……………………….….……... 75°C/W Maximum Junction Temperature (Plastic Package) ………….+150°C Output Voltages T_OUT to GND................................................................±6.0V Maximum Storage Temperature Range ……………. -65°C to +150°C R_OUT, R_OUTB ……………………....-0.3V to (VCC + 0.3V) Short-Circuit Duration, T_OUT to GND.........................Continuous Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V. Electrical Characteristics Test Conditions: VCC = 3.3V to 5.5V, TA = +25°C, C1 - C4 = 0.1μF, Unless Otherwise Specified. Boldface limits apply over the operating temperature range CONDITIONS PARAMETER TEMP. (° C) MIN TYP MAX UNITS 25 0.2 0.3 mA 25 1.0 3.0 μA DC CHARACTERISTICS (VCC = +3.3V or +5V, TA = +25°C) Supply Current All RIN open Supply Current in Power-Down SHDN = GND TP3222N LOGIC AND TRANSMITTER INPUTS AND RECEIVER OUTPUTS Input Logic Threshold Low TIN, EN, SHDN Input Logic Threshold High TIN, EN, SHDN Input Leakage Current TIN, EN, SHDN Output Leakage Current EN = VCC Output Voltage Low IOUT = 1.6mA Output Voltage High 2 IOUT = -1.0mA Rev.B.01 VCC = 3.3V Full 0.53 0.63 VCC = 5.0V Full 0.57 0.68 VCC = 3.3V Full 0.84 0.95 V VCC = 5.0V Full 0.9 1.02 V Full ±1.2 ±1.5 μA ±0.01 μA 0.25 V TP3222N Full Full 0.18 Full VCC 0.15 VCC - 0.2 V V www.3peakic.com.cn TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers CONDITIONS TEMP. (° C) MIN 25 -25 VCC = 3.3V 25 0.62 0.73 VCC = 5V 25 0.62 0.73 VCC = 3.3V 25 1.26 1.45 V VCC = 5V 25 1.29 1.45 V Input Hysteresis 25 0.5 Input Resistance 25 3 VCC = 3.3V Full ±3.3 V VCC = 5V Full ±5 V VCC = V+ = V- = 0V, transmitter output = ±2V 25 PARAMETER TYP MAX UNITS RECEIVER INPUTS Input Voltage Range Input Threshold Low Input Threshold High 25 5 V V V V 7 kΩ TRANSMITTER OUTPUTS Output Voltage Swing Output Resistance Output Short-Circuit Current Output Leakage Current VOUT = ±12V, VCC = 0V or 3V to 5.5V, SHDN = GND Ω 50 Full ±60 mA Full ±0.01 μA TIMING CHARACTERISTICS Maximum Data Rate RL = 3kΩ, CL = 1000pF, one transmitter, switching Receiver Propagation Delay Receiver input to receiver output, CL = 150pF tPHL tPLH Receiver Output Enable Time Normal Operation Receiver Output Disable time Normal Operation Transmitter Skew Full 235 470 kbps 25 0.3 μs 25 0.3 μs TP3222N 25 100 ns f = 1kHz, RL = 1kΩ 25 100 ns tPHL to tPLH 25 150 ns Receiver Skew tPHL to tPLH 25 100 ns Transition Region Slew Rate VCC = 3.3V, RL = 3kΩ to 7kΩ, measured from 3V to -3V or -3V to 3V CL = 150pF to 2500pF 25 13.5 14 16.5 V/μs CL = 150pF to 1000pF 25 13.9 14 16.5 V/μs RS-232 Pins (T1OUT, T2OUT) ESD Human Body Model 25 ±8 kV Human Body Model 25 ±2 kV RS-232 Pins (R1IN, R2IN) ESD www.3peakic.com.cn Rev.B.01 3 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Test Circuits and Waveforms VCC RL=1.3 kΩ RO RIN SIGNAL GENERATOR CL=50 pF Test Circuit 90% 50% IN 3V 90% 50% 10% 10% tPHL 0V tPLH VOH OUT VOL SKEW=|tPLH-tPHL| Figure 1. Receiver Test Circuit and Waveforms for tPHL and tPLH Measurements DO DIN SIGNAL GENERATOR RS-232 Output CL=50 pF RL Test Circuit IN 90% 50% 3V 90% 50% 10% 10% tPHL 0V tPLH VOH OUT 1.5V VOL SKEW=|tPLH-tPHL| Figure 2. Driver Test Circuit and Waveforms for tPHL and tPLH Measurements 4 Rev.B.01 www.3peakic.com.cn TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Pin Functions PIN FUNCTION VCC System power supply input (3.0V to 5.5V). V+ Internally generated positive transmitter supply (+5.5V). V- Internally generated negative transmitter supply (-5.5V). GND Ground connection. C1+ External capacitor (voltage doubler) is connected to this lead. C1- External capacitor (voltage doubler) is connected to this lead. C2+ External capacitor (voltage inverter) is connected to this lead. C2- External capacitor (voltage inverter) is connected to this lead. TIN TTL/CMOS compatible transmitter Inputs. TOUT RS-232 level (nominally ±5.5V) transmitter outputs. RIN RS-232 compatible receiver inputs. ROUT TTL/CMOS level receiver outputs. EN Active low receiver enable control; doesn’t disable ROUTB outputs. SHDN Active low input to shut down transmitters and on-board power supply, to place device in low power mode. Detailed Description Charge-Pump Voltage Converter The integrated charge pump in TP3232N/TP3222N generates negative power supply from a single supply VCC. The charge pump requires a flying capacitors (C1, C2) and a reservoir capacitors (C3, C4) to generate V- supplies(Figure1). At the same time a decoupling capacitor shall be applied between VCC and ground. Typical value for the flying capacitor is 0.1uF. Typical value of the decoupling capacitor shall be same as or larger than that of the flying capacitor. The TP3232N/TP3222N’s charge pump could provides output voltages of +5V and -5V under single +5V VCC. VCC 0.1μF VCC C1+ V+ C3 C1 C1- TP3232N V- C2+ C2 C4 C2T_IN T_OUT R_OUT R_IN 5KΩ 3kΩ 1000pF GND Figure 1. Slew-Rate Test Circuits www.3peakic.com.cn Rev.B.01 5 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers RS-232 Transmitters The transmitters are inverting level translators that convert TTL/CMOS-logic levels to ±5V EIA/TIA-232-compliant levels. The TP3232N/TP3222N transmitters guarantee a 470kbps data rate with worst-case loads of 3kΩ in parallel with 1000pF, providing compatibility with PC-to-PC communication software. Transmitters can be paralleled to drive multiple receivers or mice. The TP3222N transmitters are disabled and the outputs are forced into a high-impedance state when the device is in shutdown mode (SHDN = GND). The TP3232N/TP3222N’s transmitter inputs have a 400kΩ active positive-feedback resistor, allowing unused inputs to be left unconnected. RS-232 Receivers The receivers convert RS-232 signals to CMOS-logic output levels. The TP3222N receivers have inverting three-state outputs. Drive EN high to place the receiver(s) into a high impedance. Receivers can be either active or inactive in shutdown (Table 1). SHDN EN T_OUT R-OUT R_OUTB 0 0 High impedance Active Active 0 1 High impedance High impedance Active 1 0 Active Active Active 1 1 Active High impedance Active TABLE 1 Shutdown and Enable Control Truth Table TP3222N Supply current falls to less than 1μA in shutdown mode(SHDN = low). When shut down, the device’s charge pumps are shut off, V- is pulled to ground, and the transmitter outputs are disabled (high impedance). The time required to recover from shutdown is typically 80μs. Applications Information Capacitor Selection The capacitor type used for C1–C4 is not critical for proper operation; polarized or nonpolarized capacitors can be used. The charge pump requires 0.1μF capacitors for 3.3V operation. Increasing the capacitor values (e.g., by a factor of 2) reduces ripple on the transmitter outputs and slightly reduces power consumption. C2, C3, and C4 can be increased without changing C1’s value. However, do not increase C1 without also increasing the values of C2, C3, C4, and CBYPASS to maintain the proper ratios (C1 to the other capacitors).When using the minimum required capacitor values, make sure the capacitor value does not degrade excessively with temperature. If in doubt, use capacitors with a larger nominal value. The capacitor’s equivalent series resistance (ESR), which usually rises at low temperatures, influences the amount of ripple on V+ and V-. 6 Rev.B.01 www.3peakic.com.cn TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Power-Supply Decoupling In most circumstances, a 0.1μF VCC bypass capacitor is adequate. In applications sensitive to power-supply noise, use a capacitor of the same value as charge pump capacitor C1. Connect bypass capacitors as close to the IC as possible. Operation Down to 3V Transmitter outputs meet EIA/TIA-562 levels of ±3V with supply voltages as low as 3V. From Shutdown As they become active, the two transmitter outputs are shown going to opposite RS-232 levels (one transmitter input is high; the other is low). Each transmitter is loaded with 3kΩ in parallel with 2500pF. The transmitter outputs display no ringing or undesirable transients as they come out of shutdown. Note that the transmitters are enabled about 80μs after power up. High Data Rates The TP3232N/TP3222N maintain the RS-232 ±3V minimum transmitter output voltage even at high data rates. All transmitters were driven simultaneously at 470kbps into RS-232 loads in parallel with 5000pF. For Figure 4, a single transmitter was driven at 333kbps, and all transmitters were loaded with an RS-232 receiver in parallel with 1000pF. VCC 0.1μF VCC C1+ V+ C3 C1 C1- T_IN TP3232N V- C2+ C2 C4 C2T_IN T_OUT R_OUT T_OUT R_IN 5KΩ 1000pF GND R_OUT 2µs/DIV Figure 4. Loopback Test Circuit www.3peakic.com.cn Figure 5. Loopback Test At 333kbps Rev.B.01 7 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Typical Application Circuits VCC 0.1μF 17 VCC 2 3 C1+ V+ C3 C1 4 C1C2+ 5 TP3222N 7 V- C4 C2 6 C2- T1 T1_IN 12 T2_IN TTL/CMOS LEVELS 15 T2 11 13 T2_OUT R1 R1_IN R_OUT 5kΩ R2 9 R2_IN R2_OUT 1 RS-232 LEVELS 14 R1_OUT 10 T1_OUT 8 5kΩ EN 18 VCC GND SHDN 16 TP3222N VCC 0.1μF 16 VCC 1 2 C1+ V+ C3 C1 3 C1C2+ 4 TP3232N 6 V- C4 C2 5 C2- T1 T1_IN 11 T2_IN TTL/CMOS LEVELS 14 7 T2 10 12 T2_OUT R1 RS-232 LEVELS 13 R1_OUT R1_IN R_OUT 9 T1_OUT 5kΩ R2 8 R2_IN R2_OUT 5kΩ GND 15 TP3232N 8 Rev.B.01 www.3peakic.com.cn TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Typical Performance Curves Figure 6. Transmitter Output Voltage vs Load VCC = 5V, TA = +25°C. Figure 7. Slew Rate vs Load Capacitance Capacitance Figure 8. Supply Current vs Load Capacitance When Transmitting Data www.3peakic.com.cn Figure 9. Supply Current vs Load Capacitance When Transmitting Data Rev.B.01 9 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Package Outline Dimensions SOIC-16 Dimensions In Millimeters Symbol MIN Rev.B.01 MAX A 1.35 1.60 1.75 A1 0.10 0.15 0.25 B 0.33 0.42 0.51 C 0.19 0.22 0.25 D 9.8 9.9 10 E 3.8 3.9 4 H 5.8 6.0 6.2 h 0.25 0.38 0.5 L 0.4 0.835 1.27 N 16 e 1.27 BSC α 10 NOM 0° 4° 8° www.3peakic.com.cn TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Package Outline Dimensions TSSOP-16 Dimensions In Millimeters Symbol MIN MAX A - 0.55 1.10 A1 0.05 0.10 0.15 A2 0.85 0.90 0.95 b 0.19 0.25 0.30 c 0.09 0.15 0.20 D 4.90 5.00 5.10 E1 4.30 4.40 4.50 E 6.25 6.38 6.5 L 0.50 0.60 0.70 N 16 e 0.65 BSC α www.3peakic.com.cn NOM 0° Rev.B.01 4° 8° 11 TP3232N/TP3222N Microamp Supply-Current, 3.0V to 5.5V, Up to 470kbps RS-232 Transceivers Package Outline Dimensions SOIC-18 Dimensions In Millimeters Symbol MIN Rev.B.01 MAX A 2.35 2.5 2.65 A1 0.10 0.20 0.30 B 0.33 0.42 0.51 C 0.23 0.26 0.32 D 11.35 11.55 11.75 E 7.40 7.50 7.60 H 10.00 10.32 10.65 h 0.25 0.50 0.75 L 0.40 0.84 1.27 N 18 e 1.27 BSC α 12 NOM 0° 4° 8° www.3peakic.com.cn