LT1138ACSW#PBF

LT1130A/LT1140A Series Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors U DESCRIPTIO FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ESD Protection over ±10kV (±15kV IEC-1000-4-2 for LT1133A, LT1137A and LT1141A) Uses Small Capacitors: 0.1µF, 0.2µF 1µA Supply Current in SHUTDOWN 120kBaud Operation for RL = 3k, CL = 2500pF 250kBaud Operation for RL = 3k, CL = 1000pF CMOS Comparable Low Power Easy PC Layout: Flowthrough Architecture Rugged Bipolar Design: Absolutely No Latchup Outputs Assume a High Impedance State When Off or Powered Down Improved Protection: RS232 I/O Lines Can Be Forced to ±30V Without Damage Output Overvoltage Does Not Force Current Back into Supplies Available in SO and SSOP Packages The LT ®1130A/LT1140A series of RS232 drivers/receivers features special bipolar construction techniques which protect the drivers and receivers beyond the fault conditions stipulated for RS232. Driver outputs and receiver inputs can be shorted to ±30V without damaging the device or the power supply generator. In addition, the RS232 I/O pins are resilient to multiple ±10kV ESD strikes. An advanced driver output stage operates up to 250kbaud while driving heavy capacitive loads. Supply current is typically 12mA, competitive with CMOS devices. Several members of the series include flexible operating mode controls. The DRIVER DISABLE pin disables the drivers and the charge pump, the ON/OFF pin shuts down all circuitry. While shut down, the drivers and receivers assume high impedance output states. , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO Basic Operation 0.1µF V+ 1 28 2 27 5V VCC 0.1µF ×2 DRIVER OUT RX IN DRIVER OUT TO LINE RX IN RX IN RX IN DRIVER OUT RX IN ON/OFF = 5V 3 LT1137A Output Waveforms V– 0.1µF ×2 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 0.1µF RECEIVER OUTPUT CL = 50pF DRIVER IN RX OUT DRIVER IN RX OUT RX OUT TO LOGIC DRIVER ROUTPUT RL = 3k CL = 2500pF RX OUT DRIVER IN RX OUT INPUT GND DRIVER DISABLE LT1130A • TA02 1130A • TA01 LT1130A 5-Driver/5-Receiver RS232 Transceiver LT1131A 5-Driver/4-Receiver RS232 Transceiver w/Shutdown LT1132A 5-Driver/3-Receiver RS232 Transceiver LT1133A 3-Driver/5-Receiver RS232 Transceiver LT1134A 4-Driver/4-Receiver RS232 Transceiver LT1135A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump LT1136A 4-Driver/5-Receiver RS232 Transceiver w/Shutdown LT1137A 3-Driver/5-Receiver RS232 Transceiver w/Shutdown LT1138A 5-Driver/3-Receiver RS232 Transceiver w/Shutdown LT1139A 4-Driver/4-Receiver RS232 Transceiver w/Shutdown LT1140A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump LT1141A 3-Driver/5-Receiver RS232 Transceiver w/o Charge Pump 1 LT1130A/LT1140A Series W W W AXI U U ABSOLUTE RATI GS (Note 1) Supply Voltage (VCC) ................................................ 6V V + ........................................................................ 13.2V V – (Note 7) ....................................................... –13.2V Input Voltage Driver ........................................................... V – to V + Receiver ............................................... – 30V to 30V On/Off Pin ............................................. – 0.3V to 12V Driver Disable Pin ................... – 0.3V to (VCC + 0.3V) Output Voltage Driver .................................................... – 30V to 30V Receiver ................................. – 0.3V to (VCC + 0.3V) Short-Circuit Duration V + ................................................................... 30 sec V – ................................................................... 30 sec Driver Output .............................................. Indefinite Receiver Output .......................................... Indefinite Operating Temperature Range LT113XAC/LT114XAC ............................ 0°C to 70°C LT113XAI/LT114XAI ............................. – 40° to 85°C Storage Temperature Range ................ – 65°C to 150°C Lead Temperature (Soldering, 10 sec)................. 300°C U PRODUCT SELECTIO TABLE Part Number Power Supply Voltages* Shutdown Driver Disable Drivers Receivers External Components LT1130A 5 No No 5 5 4 Capacitors LT1131A 5 Yes Yes 5 4 4 Capacitors LT1132A 5 No No 5 3 4 Capacitors LT1133A** 5 No No 3 5 4 Capacitors LT1134A 5 No No 4 4 4 Capacitors LT1135A 5, 12, –12 No No 5 3 None LT1136A 5 Yes Yes 4 5 4 Capacitors LT1137A** 5 Yes Yes 3 5 4 Capacitors LT1138A 5 Yes Yes 5 3 4 Capacitors LT1139A 5, 12 Yes No 4 4 2 Capacitors LT1140A 5, 12, –12 Yes Yes 5 3 None LT1141A** 5, 12, –12 Yes Yes 3 5 None *The LT1130A, LT1131A, LT1132A, LT1134A, LT1136A, LT1137A and LT1138A can operate with 5V and 12V supplies and two external capacitors. **Meets ±15kV ESD air gap discharge and ±8kV contact methods per IEC-1000-4-2. U W U PACKAGE/ORDER I FOR ATIO 5-DRIVER/5-RECEIVER TOP VIEW 5-DRIVER/4-RECEIVER WITH SHUTDOWN TOP VIEW V+ 1 27 C2 – 5V VCC 2 3 26 C2 + C1+ 3 26 C2 + C1– 4 25 DRIVER IN C1– 4 25 DRIVER IN DRIVER OUT 5 24 RX OUT DRIVER OUT 5 24 RX OUT V+ 1 5V VCC 2 C1+ 28 V – LT1130A RX IN 6 23 DRIVER IN DRIVER OUT 7 22 RX OUT RX IN 8 21 DRIVER IN DRIVER OUT 9 20 RX OUT RX IN 10 DRIVER OUT 11 RX IN 12 DRIVER OUT 13 RX IN 14 NW PACKAGE 28-LEAD PDIP 19 DRIVER IN 18 RX OUT 17 DRIVER IN 16 RX OUT 15 GND SW PACKAGE 28-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) 2 ORDER PART NUMBER LT1130ACNW LT1130ACSW LT1130AISW 28 V – LT1131A 27 C2 – RX IN 6 23 DRIVER IN DRIVER OUT 7 22 RX OUT RX IN 8 21 DRIVER IN DRIVER OUT 9 20 RX OUT RX IN 10 DRIVER OUT 11 RX IN 12 DRIVER OUT 13 ON/OFF 14 NW PACKAGE 28-LEAD PDIP ORDER PART NUMBER 19 DRIVER IN 18 RX OUT 17 DRIVER IN 16 GND 15 DRIVER DISABLE SW PACKAGE 28-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) LT1131ACNW LT1131ACSW LT1130A/LT1140A Series U W U PACKAGE/ORDER I FOR ATIO 5-DRIVER/3-RECEIVER TOP VIEW 1 5V VCC 2 C1+ 3 22 C2 + 24 V – 23 C2 – C1– 4 21 DRIVER IN DRIVER OUT 5 20 DRIVER IN DRIVER OUT 6 19 RX OUT RX IN 7 DRIVER OUT DRIVER OUT LT1132ACN LT1132ACSW LT1132AISW 1 5V VCC 2 C1+ 3 22 C2 + 24 V – LT1133A 23 C2 – C1– 4 21 DRIVER IN 5 20 RX OUT RX IN 6 19 DRIVER IN 18 DRIVER IN DRIVER OUT 7 18 RX OUT 8 17 DRIVER IN RX IN 8 17 RX OUT 9 16 RX OUT RX IN 9 16 RX OUT 15 DRIVER IN RX IN 10 14 RX OUT DRIVER OUT 11 N PACKAGE 24-LEAD PDIP TOP VIEW V+ 1 5V VCC 2 C1+ 3 22 C2 + 24 V – 23 C2 – TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) ORDER PART NUMBER LT1134ACN LT1134ACSW LT1134AIN LT1134AISW 18 DRIVER IN 4 17 RX OUT RX IN 5 16 DRIVER IN 17 DRIVER IN DRIVER OUT 6 15 DRIVER IN 16 RX OUT DRIVER OUT 7 14 RX OUT RX IN 8 13 DRIVER IN DRIVER OUT 9 12 RX OUT 19 DRIVER IN DRIVER OUT 7 18 RX OUT RX IN 8 DRIVER OUT 9 15 DRIVER IN 14 RX OUT N PACKAGE 20-LEAD PDIP SW PACKAGE 24-LEAD PLASTIC SO WIDE TOP VIEW 27 C2 – 3 26 C2 + C1– 4 25 DRIVER IN DRIVER OUT 5 24 RX OUT RX IN 6 23 DRIVER IN DRIVER OUT 7 22 RX OUT RX IN 8 21 DRIVER IN DRIVER OUT 9 20 RX OUT RX IN 10 19 DRIVER IN DRIVER OUT 11 18 RX OUT RX IN 12 17 RX OUT RX IN 13 16 GND ON/OFF 14 NW PACKAGE 28-LEAD PDIP ORDER PART NUMBER 28 V – C1+ 15 DRIVER DISABLE SW PACKAGE 28-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) LT1135ACN LT1135ACSW SW PACKAGE 20-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 79°C/W (N) TJMAX = 150°C, θJA = 85°C/W (SW) TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) 4-DRIVER/5-RECEIVER WITH SHUTDOWN ORDER PART NUMBER 11 GND RX IN 10 13 GND LT1136A 20 –12V V – DRIVER OUT 6 2 LT1135A 19 DRIVER IN RX IN 1 1 3 20 RX OUT N PACKAGE 24-LEAD PDIP TOP VIEW 12V V + 2 21 DRIVER IN 5 RX IN 12 5-DRIVER/3-RECEIVER WITHOUT CHARGE PUMP 5V VCC 4 DRIVER OUT 11 SW PACKAGE 24-LEAD PLASTIC SO WIDE DRIVER OUT C1– DRIVER OUT RX IN 10 13 GND N PACKAGE 24-LEAD PDIP TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) 4-DRIVER/4-RECEIVER LT1133ACN LT1133ACSW LT1133AISW 14 RX OUT RX IN 12 SW PACKAGE 24-LEAD PLASTIC SO WIDE LT1134A ORDER PART NUMBER 15 DRIVER IN DRIVER OUT 11 13 GND RX IN 12 5V VCC V+ DRIVER OUT RX IN 10 V+ 3-DRIVER/5-RECEIVER TOP VIEW V+ LT1132A ORDER PART NUMBER LT1136ACNW LT1136ACSW 3-DRIVER/5-RECEIVER WITH SHUTDOWN TOP VIEW V+ 1 5V VCC 2 C1+ 3 26 C2 + C1– 4 25 DRIVER IN DRIVER OUT 5 24 RX OUT RX IN 6 23 DRIVER IN DRIVER OUT 7 22 RX OUT RX IN 8 21 RX OUT RX IN 9 20 RX OUT 28 V – LT1137A RX IN 10 18 RX OUT RX IN 12 LT1137ACG LT1137ACNW LT1137ACSW LT1137AIG LT1137AINW LT1137AISW 17 GND ON/OFF 13 16 DRIVER DISABLE NC 14 G PACKAGE 28-LEAD PLASTIC SSOP 27 C2 – 19 DRIVER IN DRIVER OUT 11 ORDER PART NUMBER 15 NC NW PACKAGE 28-LEAD PDIP SW PACKAGE 28-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 96°C/W (G) TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) 3 LT1130A/LT1140A Series W U U PACKAGE/ORDER I FOR ATIO 5-DRIVER/3-RECEIVER WITH SHUTDOWN TOP VIEW V+ 1 5V VCC 2 C1+ 3 26 C2 + C1– 4 25 DRIVER IN 28 V – LT1138A 5 24 DRIVER IN DRIVER OUT 6 23 RX OUT RX IN 7 22 DRIVER IN DRIVER OUT 8 21 RX OUT RX IN 9 20 DRIVER IN TOP VIEW LT1138ACG LT1138ACNW LT1138ACSW LT1138AIG 19 RX OUT RX IN 11 18 DRIVER IN DRIVER OUT 12 TJMAX = 150°C, θJA = 96°C/W (G) TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) TOP VIEW 12V V + 1 5V VCC 2 N.C. 3 22 DRIVER IN DRIVER OUT 4 21 DRIVER IN DRIVER OUT 5 20 RX OUT RX IN 6 19 DRIVER IN DRIVER OUT 7 18 DRIVER IN DRIVER OUT 8 17 RX OUT RX IN 9 16 DRIVER IN LT1140A DRIVER OUT 10 RX IN 11 ON/OFF 12 N PACKAGE 24-LEAD PDIP 2 12V INPUT 3 22 C + DRIVER OUT 4 21 DRIVER IN RX IN 5 20 RX OUT DRIVER OUT 6 19 DRIVER IN RX IN 7 18 RX OUT DRIVER OUT 8 17 DRIVER IN RX IN 9 16 RX OUT ORDER PART NUMBER LT1139ACN LT1139ACSW 23 C – LT1139A 15 DRIVER IN 14 RX OUT 13 GND N PACKAGE 24-LEAD PDIP SW PACKAGE 28-LEAD PLASTIC SO WIDE 5-DRIVER/3-RECEIVER WITH SHUTDOWN WITHOUT CHARGE PUMP 5V VCC ON/OFF 12 15 NC NW PACKAGE 28-LEAD PDIP 1 RX IN 11 16 DRIVER DISABLE NC 14 24 V – N.C. DRIVER OUT 10 17 GND ON/OFF 13 G PACKAGE 28-LEAD PLASTIC SSOP 4-DRIVER/4-RECEIVER WITH SHUTDOWN WITH 12V AND 5V SUPPLIES 27 C2 – DRIVER OUT DRIVER OUT 10 ORDER PART NUMBER SW PACKAGE 24-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) ORDER PART NUMBER 3-DRIVER/5-RECEIVER WITH SHUTDOWN WITHOUT CHARGE PUMP TOP VIEW 24 –12V V – 12V V + 1 23 N.C. 5V VCC 2 N.C. 3 22 RX OUT RX IN 4 21 DRIVER IN DRIVER OUT 5 20 RX OUT RX IN 6 19 DRIVER IN DRIVER OUT 7 18 RX OUT RX IN 8 17 DRIVER IN DRIVER OUT 9 16 RX OUT 15 RX OUT RX IN 10 15 RX OUT 14 GND RX IN 11 14 GND LT1140ACN LT1140ACSW 13 DRIVER DISABLE ON/OFF 12 SW PACKAGE 24-LEAD PLASTIC SO WIDE N PACKAGE 24-LEAD PDIP ORDER PART NUMBER 24 –12V V – LT1141A 23 N.C. LT1141ACN LT1141ACSW 13 DRIVER DISABLE SW PACKAGE 24-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) TJMAX = 150°C, θJA = 58°C/W (N) TJMAX = 150°C, θJA = 80°C/W (SW) Consult factory for Industrial and Military grade parts. ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply Generator V + Output 8.6 V V– – 7.8 V Output 5V VCC Supply Current: LT1130A, LT1131A, LT1132A, LT1133A, LT1134A, LT1136A, LT1138A (Note 3) ● 15 25 mA 5V VCC Supply Current: LT1135A, LT1140A, LT1141A (Note 3), V + = 12V, V – = –12V ● 8 15 mA 5V VCC Supply Current: LT1137A (Note 3) ● 12 17 mA 5V VCC Supply Current: LT1139A (Note 3), V + ● 8 15 mA 12V V + Supply Current: LT1135A, LT1140A, LT1141A (Note 3), V – = – 12V ● 1 4 mA 12V V + Supply Current: LT1139A (Note 3) ● 6 10 mA – 12V V – Supply Current: LT1135A, LT1140A, LT1141A (Note 3) V + = 12V ● 2 6 mA 4 = 12V LT1130A/LT1140A Series ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS Supply Current when OFF (VCC) Shutdown (Note 4) Driver Disable Supply Rise Time Shutdown to Turn-On C1, C2, C +, C – = 1.0µF C +, C – = 0.1µF, C1, C2 = 0.2µF ON/OFF Pin Thresholds Input Low Level (Device Shut Down) Input High Level (Device Enabled) ● ● 2.4 ON/OFF Pin Current 0V ≤ VON/OFF ≤ 5V ● – 15 DRIVER DISABLE Pin Thresholds Input Low Level (Drivers Enabled) Input High Level (Drivers Disabled) ● ● 2.4 0V ≤ VDRIVER DISABLE ≤ 5V ● – 10 DRIVER DISABLE Pin Current MIN ● TYP MAX 1 4 10 2.0 0.2 Oscillator Frequency 1.4 1.4 1.4 1.4 UNITS µA mA ms ms 0.8 V V 80 µA 0.8 V V 500 130 µA kHz Any Driver Output Voltage Swing Load = 3k to GND Positive Negative ● ● Input Low Level (VOUT = High) Input High Level (VOUT = Low) ● ● Logic Input Current 0.8V ≤ VIN ≤ 2V ● Output Short-Circuit Current VOUT = 0V Output Leakage Current Shutdown VOUT = ±30V (Note 4) Data Rate RL = 3k, CL = 2500pF RL = 3k, CL = 1000pF Slew Rate RL = 3k, CL = 51pF RL = 3k, CL = 2500pF (Note 8) 15 6 30 V/µs V/µs Propagation Delay Output Transition tHL High to Low (Note 5) Output Transition tLH Low to High 0.6 0.5 1.3 1.3 µs µs 1.3 1.7 2.4 V V Logic Input Voltage Level 5 7.3 – 6.5 –5 1.4 1.4 0.8 2 5 20 ±9 ±17 10 ● V V V V µA mA 100 120 250 µA kbaud kbaud Any Receiver Input Voltage Thresholds Input Low Threshold (VOUT = High) Input High Threshold (VOUT = Low) Hysteresis ● ● 0.8 ● 0.1 0.4 1 V 3 5 7 kΩ 0.2 4.2 0.4 3.5 1 10 µA – 10 10 – 20 20 mA mA 250 350 600 600 ns ns Input Resistance – 10V < VIN < 10V Output Voltage Output Low, IOUT = – 1.6mA Output High, IOUT = 160µA (VCC = 5V) ● ● Output Leakage Current Shutdown (Note 4) 0 ≤ VOUT ≤ VCC ● Output Short-Circuit Current Sinking Current, VOUT = VCC Sourcing Current, VOUT = 0V Propagation Delay Output Transition tHL High to Low (Note 6) Output Transition tLH Low to High Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: Testing done at VCC = 5V and VON/OFF = 3V. Note 3: Supply current is measured with driver and receiver outputs unloaded and the driver inputs tied high. Note 4: Supply current and driver leakage current measurements in shutdown are performed with VON/OFF = 0.1V. Supply current measurements using DRIVER DISABLE are performed with VDRIVER DISABLE = 3V. For LT1135, LT1139, LT1140 and LT1141 with 12V supplies, VOUT leakage is 200µA for VOUT forced to ±25V. V V Note 5: For driver delay measurements, RL = 3k and CL = 51pF. Trigger points are set between the driver’s input logic threshold and the output transition to the zero crossing (tHL = 1.4V to 0V and tLH = 1.4V to 0V). Note 6: For receiver delay measurements, CL = 51pF. Trigger points are set between the receiver’s input logic threshold and the output transition to standard TTL/CMOS logic threshold (tHL = 1.3V to 2.4V and tLH = 1.7V to 0.8V). Note 7: For LT1133A/LT1137A, absolute maximum externally applied V – = – 6.5V. Internal charge pump will drive this pin to a higher negative voltage. Note 8: For LT1137A, 4V/µs minimum. 5 LT1130A/LT1140A Series U W TYPICAL PERFOR A CE CHARACTERISTICS Driver Output Voltage RL = 3k 6 OUTPUT HIGH VCC = 5.5V VCC = 5V VCC = 4.5V 4 2 0 VCC = 4.5V VCC = 5V VCC = 5.5V –2 –4 –6 –8 OUTPUT LOW –10 –55 –25 50 25 0 75 TEMPERATURE (°C) 100 100 2.75 90 2.50 2.00 INPUT HIGH 1.75 1.50 INPUT LOW 1.25 10 50 25 0 75 TEMPERATURE (°C) 0 125 0 100 25 75 100 50 DATA RATE (kBaud) 125 Driver Disable Threshold 5 3.0 4 2.5 3 2 2.0 1.5 1.0 0.5 0 –55 –25 125 50 25 0 75 TEMPERATURE (°C) LT1137A • TPC04 100 0 –55 –25 125 50 25 75 0 TEMPERATURE (°C) LT1137A • TPC05 45 125 Driver Leakage in Shutdown 50 2.5 100 LT1137A • TPC06 Supply Current ON/OFF Thresholds 3.0 150 LT1130A • TPC03 THRESHOLD VOLTAGE (V) SUPPLY CURRENT (mA) SUPPLY CURRENT (µA) 100 3 DRIVER RL = 3k CL = 2500pF 30 20 1 100 5 DRIVER ON THRESHOLD 1.5 1.0 OFF THRESHOLD 35 LEAKAGE CURRENT (µA) 40 SUPPLY CURRENT (mA) THRESHOLD VOLTAGE (V) 40 Supply Current in Driver Disable 1 2.0 50 0.75 Supply Current in Shutdown 0 25 50 75 TEMPERATURE (°C) 60 LT1137A • TPC02 100 0.1 –55 –25 70 1.00 LT1130A • TPC01 10 5 DRIVER RL = 3k CL = 2500pF 80 2.25 0.50 –55 –25 125 Supply Current vs Data Rate 3.00 SUPPLY CURRENT (mA) DRIVER OUTPUT VOLTAGE (V) 8 Receiver Input Thresholds THRESHOLD VOLTAGE (V) 10 3 DRIVER 30 25 1 DRIVER 20 15 NO LOAD 10 0.5 10 1 VOUT = 30V VOUT = –30V 5 0 –55 –25 50 25 75 0 TEMPERATURE (°C) 100 125 LT1137A • TPC07 6 0 –55 –25 50 25 0 75 TEMPERATURE (°C) 100 125 LT1130A • TPC08 0.1 –55 –25 50 25 0 75 TEMPERATURE (°C) 100 125 LT1137A • TPC09 LT1130A/LT1140A Series U W TYPICAL PERFOR A CE CHARACTERISTICS Driver Short-Circuit Current Receiver Short-Circuit Current 50 SHORT-CIRCUIT CURRENT (mA) SHORT-CIRCUIT CURRENT (mA) 30 25 ISC + 20 15 ISC – 10 5 0 –55 –25 50 25 75 0 TEMPERATURE (°C) 100 125 40 ISC – 30 ISC + 20 10 0 –55 –25 50 25 0 75 TEMPERATURE (°C) 125 LT1137A • TPC11 LT1137A • TPC10 Driver Output Waveforms Shutdown to Driver Output DRIVER OUTPUT HIGH RL = 3k 100 DRIVER OUTPUT RL = 3k 10 5 0 DRIVER OUTPUT RL = 3k CL = 2500pF DRIVER – 5 OUTPUT LOW RL = 3k – 10 INPUT ON/OFF PIN LT1137A • TPC12 LT1137A • TPC13 U U U PI FU CTIO S VCC: 5V Input Supply Pin. Supply current drops to zero in the shutdown mode. This pin should be decoupled with a 0.1µF ceramic capacitor close to the package pin. Insufficient supply bypassing can result in low output drive levels and erratic charge pump operation. GND: Ground Pin. ON/OFF: Control the operation mode of the device and is TTL/CMOS compatible. A logic low puts the device in the shutdown mode which reduces input supply curent to zero and places all of the drivers and receivers in high impedance state. A logic high fully enables the transceiver. DRIVER DISABLE: This pin provides an alternate control for the charge pump and RS232 drivers. A logic high on this pin shuts down the charge pump and places all drivers in a high impedance state. Receivers remain active under these conditions. Floating the DRIVER DISABLE pin or driving it to a logic low level fully enables the transceiver. A logic low on the ON/OFF pin supersedes the state of the DRIVER DISABLE pin. Supply current drops to 4mA when in driver disable mode. V +: Positive Supply Output (RS232 Drivers). V + ≈ 2VCC – 1.5V. This pin requires an external charge storage capacitor C ≥ 1.0µF, tied to ground or VCC. Larger value capacitors may be used to reduce supply ripple. With multiple transceivers, the V + and V – pins may be paralleled into common capacitors. For large numbers of transceivers, increasing the size of the shared common storage capacitors is recommended to reduce ripple. 7 LT1130A/LT1140A Series U U U PI FU CTIO S V –: Negative Supply Output (RS232 Drivers). V – ≈ –(2VCC – 2.5V). This pin requires an external charge storage capacitor C ≥ 0.1µF. V – is short-circuit proof for 30 seconds. C1+, C1–, C2+, C2 –: Commutating Capacitor Inputs. These pins require two external capacitors C ≥ 0.2µF: one from C1+ to C1–, and another from C2 + to C2 –. To maintain charge pump efficiency, the capacitor’s effective series resistance should be less than 2Ω. For C ≥ 1µF, low ESR tantalum capacitors work well in this application, although small value ceramic capacitors may be used with a minimal reduction in charge pump compliance. In applications where larger positive voltages are available, such as 12V, C1 may be omitted and the positive voltage may be connected directly to the C1+ pin. In this mode of operation, the V + pin should be decoupled with a 0.1µF ceramic capacitor. DRIVER IN: RS232 Driver Input Pins. These inputs are TTL/CMOS compatible. Inputs should not be allowed to float. Tie unused inputs to VCC. DRIVER OUT: Driver Outputs at RS232 Voltage Levels. Driver output swing meets RS232 levels for loads up to 3k. Slew rates are controlled for lightly loaded lines. Output current capability is sufficient for load conditions up to 2500pF. Outputs are in a high impedance state when in shutdown mode, VCC = 0V, or when the DRIVER DISABLE pin is active. Outputs are fully short-circuit protected from V – + 30V to V + – 30V. Applying higher voltages will not damage the device if the overdrive is moderately current limited. Short circuits on one output can load the power supply generator and may disrupt the signal levels of the other outputs. The driver outputs are protected against ESD to ±10kV for human body model discharges. RX IN: Receiver Inputs. These pins accept RS232 level signals (±30V) into a protected 5k terminating resistor. The receiver inputs are protected against ESD to ±10kV for human body model discharges. Each receiver provides 0.4V of hysteresis for noise immunity. Open receiver inputs assume a logic low state. RX OUT: Receiver Outputs with TTL/CMOS Voltage Levels. Outputs are in a high impedance state when in shutdown mode to allow data line sharing. Outputs are fully short-circuit protected to ground or VCC with the power on, off, or in shutdown mode. U ESD PROTECTIO The RS232 line inputs of the LT1130A/LT1140A series of RS232 Driver/Receivers have on-chip protection from ESD transients up to ±10kV. The protection structures act to divert the static discharge safely to system ground. In order for the ESD protection to function effectively, the power supply and ground pins of the LT1130A/LT1140A must be connected to ground through low impedances. The power supply decoupling capacitors and charge pump storage capacitors provide this low impedance in normal application of the circuit. The only constraint is that low ESR capacitors must be used for bypassing and charge storage. ESD testing must be done with pins VCC, V +, V – and GND shorted to ground or connected with low ESR capacitors. The ESD protection on the LT1133A, LT1137A and LT1141A meets ±15kV air gap discharge and ±8kV contact methods per IEC-1000-4-2. 8 ESD Test Circuit 1 V+ 5V VCC 2 0.1µF 0.1µF + 0.2µF DRIVER 1 OUT RX1 IN DRIVER 2 OUT RS232 LINE PINS PROTECTED TO ±15kV RX2 IN RX3 IN RX4 IN DRIVER 3 OUT RX5 IN ON/OFF 28 LT1137A V– 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 + 0.1µF 0.2µF DRIVER 1 IN RX1 OUT DRIVER 2 IN RX2 OUT RX3 OUT RX4 OUT DRIVER 3 IN RX5 OUT GND DRIVER DISABLE LT1130A • ESD TC LT1130A/LT1140A Series U TYPICAL APPLICATIO S Operation Using 5V and 12V Power Supplies V+ 5V VCC 12V V + 0.01µF 0.01µF 2 C1+ 3 26 C1– 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 RX IN DRIVER OUT RX IN RX IN RX IN DRIVER OUT RX IN ON/0FF = 5V V– 28 LT1137A VCC DRIVER OUT TO LINE 1 27 0.1µF 0.1µF ×2 DRIVER IN RX OUT DRIVER IN RX OUT TO LOGIC RX OUT RX OUT DRIVER IN RX OUT GND DRIVER DISABLE LT1130A • TA03 Typical Mouse Driving Application 0.1µF MOUSE V+ 1 5V VCC 2 26 4 25 DRIVER 1 IN DRIVER 1 OUT 5 24 RX1 OUT RX1 IN 6 23 DRIVER 2 IN DRIVER 2 OUT 7 22 RX2 OUT RX2 IN 8 21 RX3 OUT RTS RX3 IN 9 20 RX4 OUT TX RX4 IN 10 0.1µF ×2 DCD (1) DSR RX OPTICS V– (5) (9) DB9 V– 27 3 V+ LOGIC 28 LT1137A 0.1µF ×2 19 DRIVER 3 IN LOGIC “0” LOGIC “0” MOUSE DATA LOGIC “1” 18 RX5 OUT CTS DRIVER 3 OUT 11 DTR RX5 IN 12 17 GND RI ON/OFF 13 16 DRIVER DISABLE 14 0.1µF 15 LT1130A • TA04 9 LT1130A/LT1140A Series U PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted. G Package 28-Lead Plastic SSOP (0.209) (LTC DWG # 05-08-1640) 0.205 – 0.212** (5.20 – 5.38) 0.068 – 0.078 (1.73 – 1.99) 0.397 – 0.407* (10.07 – 10.33) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0° – 8° 0.005 – 0.009 (0.13 – 0.22) 0.022 – 0.037 (0.55 – 0.95) 0.301 – 0.311 (7.65 – 7.90) 0.0256 (0.65) BSC 0.002 – 0.008 (0.05 – 0.21) 0.010 – 0.015 *DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH (0.25 – 0.38) SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 G28 SSOP 0694 N Package 20-Lead PDIP (Narrow 0.300) (LTC DWG # 05-08-1510) 0.130 ± 0.005 (3.302 ± 0.127) 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) ( 0.020 (0.508) MIN +0.035 0.325 –0.015 +0.889 8.255 –0.381 1.040* (26.416) MAX 0.045 – 0.065 (1.143 – 1.651) ) 0.065 (1.651) TYP 0.125 (3.175) MIN 0.005 (0.127) MIN 0.100 ± 0.010 (2.540 ± 0.254) 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 0.255 ± 0.015* (6.477 ± 0.381) 0.018 ± 0.003 (0.457 ± 0.076) N20 1197 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) N Package 24-Lead PDIP (Narrow 0.300) (LTC DWG # 05-08-1510) 0.300 – 0.325 (7.620 – 8.255) 0.130 ± 0.005 (3.302 ± 0.127) 1.265* (32.131) MAX 0.045 – 0.065 (1.143 – 1.651) 0.020 (0.508) MIN ( 8.255 +0.889 –0.381 ) 0.125 (3.175) MIN 0.100 ± 0.010 (2.540 ± 0.254) *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 10 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 0.255 ± 0.015* 0.065 (6.477 ± 0.381) (1.651) TYP 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 24 0.018 ± 0.003 (0.457 ± 0.076) N24 1197 LT1130A/LT1140A Series U PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted. NW Package 28-Lead PDIP (Wide 0.600) (LTC DWG # 05-08-1520) 0.070 (1.778) TYP 0.045 – 0.065 (1.143 – 1.651) 0.150 ± 0.005 (3.810 ± 0.127) 0.600 – 0.625 (15.240 – 15.875) 1.455* (36.957) MAX 28 27 26 25 24 23 22 21 20 19 18 17 16 1 2 3 4 5 6 7 8 9 10 11 12 13 0.015 (0.381) MIN 0.009 – 0.015 (0.229 – 0.381) ( 0.505 – 0.560* (12.827 – 14.224) +0.035 0.625 –0.015 15.87 +0.889 –0.381 15 0.125 (3.175) MIN ) 0.018 ± 0.003 (0.457 ± 0.076) 0.035 – 0.080 (0.889 – 2.032) 0.100 ± 0.010 (2.540 ± 0.254) 14 N28 1197 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) SW Package 20-Lead Plastic Small Outline (Wide 0.300) (LTC DWG # 05-08-1620) 0.291 – 0.299** (7.391 – 7.595) 0.496 – 0.512* (12.598 – 13.005) 0.037 – 0.045 (0.940 – 1.143) 0.093 – 0.104 (2.362 – 2.642) 0.010 – 0.029 × 45° (0.254 – 0.737) 19 20 18 17 16 15 14 13 12 11 0° – 8° TYP 0.009 – 0.013 (0.229 – 0.330) 0.050 (1.270) TYP NOTE 1 0.016 – 0.050 (0.406 – 1.270) 0.394 – 0.419 (10.007 – 10.643) NOTE 1 0.004 – 0.012 (0.102 – 0.305) 0.014 – 0.019 (0.356 – 0.482) TYP NOTE: 1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS 2 1 *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 3 5 4 7 6 9 8 10 S20 (WIDE) 0396 SW Package 24-Lead Plastic Small Outline (Wide 0.300) (LTC DWG # 05-08-1620) 0.598 – 0.614* (15.190 – 15.600) 0.291 – 0.299** (7.391 – 7.595) 0.010 – 0.029 × 45° (0.254 – 0.737) 0.093 – 0.104 (2.362 – 2.642) 0.037 – 0.045 (0.940 – 1.143) 24 23 22 21 20 19 18 17 16 15 14 13 0° – 8° TYP 0.009 – 0.013 (0.229 – 0.330) NOTE 1 0.016 – 0.050 (0.406 – 1.270) 0.050 (1.270) TYP 0.014 – 0.019 (0.356 – 0.482) TYP NOTE: 1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0.394 – 0.419 (10.007 – 10.643) NOTE 1 0.004 – 0.012 (0.102 – 0.305) 1 2 3 4 5 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 6 7 8 9 10 11 12 S24 (WIDE) 0996 11 LT1130A/LT1140A Series U PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted. SW Package 28-Lead Plastic Small Outline (Wide 0.300) (LTC DWG # 05-08-1620) 0.291 – 0.299** (7.391 – 7.595) 0.697 – 0.712* (17.70 – 18.08) 0.037 – 0.045 (0.940 – 1.143) 0.010 – 0.029 × 45° 0.093 – 0.104 (2.362 – 2.642) (0.254 – 0.737) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0° – 8° TYP 0.009 – 0.013 (0.229 – 0.330) 0.050 (1.270) TYP 0.014 – 0.019 (0.356 – 0.482) TYP NOTE 1 0.394 – 0.419 (10.007 – 10.643) NOTE 1 0.004 – 0.012 (0.102 – 0.305) 0.016 – 0.050 (0.406 – 1.270) NOTE: 1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 S28 (WIDE) 0996 *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE U TYPICAL APPLICATION Sharing Power Supply Generator with a Second Transceiver 1µF C2 – + 1µF C1+ 3 22 C2 + + C1– 1µF 4 21 5 20 6 19 7 18 DRIVER OUT RX IN DRIVER OUT TO RS232 LINE RX IN RX IN RX IN DRIVER OUT RX IN LT1133A 8 17 9 16 10 15 11 14 12 13 V+ 1 5V VCC 1µF NC + 23 V+ 1 5V VCC 2 DRIVER IN RX IN RX OUT DRIVER OUT DRIVER IN RX OUT RX OUT RX IN TO LOGIC RX OUT TO RS232 LINE DRIVER OUT RX IN DRIVER OUT DRIVER IN RX IN RX OUT RX IN GND ON/OFF 2 24 LT1141A 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 V– + 24 V– NC RX OUT DRIVER IN RX OUT DRIVER IN RX OUT TO LOGIC DRIVER IN RX OUT RX OUT GND DRIVER DISABLE LT1130A • TA05 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1180A/LT1181A 2-Driver/2-Receiver RS232 Transceivers Single 5V Supply with 0.1µF Capacitors LT1237 3-Driver/5-Receiver RS232 Transceiver Lower Power Upgrade for LT1137A LTC1327 3-Driver/5-Receiver RS562 Transceiver 3.3V Operation LTC1337 3-Driver/5-Receiver RS232 Transceiver Ultralow Power for DTE Applications LTC1338 5-Driver/3-Receiver RS232 Transceiver Ultralow Power for DCE Applications LTC1348 3-Driver/5-Receiver RS232 Transceiver 3.3V to 5V Operation 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 ● (408) 432-1900 FAX: (408) 434-0507● TELEX: 499-3977 ● www.linear-tech.com 1130asfb LT/TP 0799 2K REV B • PRINTED IN USA  LINEAR TECHNOLOGY CORPORATION 1993