LTC1535CSWPBF LINER [Linear Technology], LTC1535CSWPBF Datasheet
LTC1535CSWPBF
Related parts for LTC1535CSWPBF
LTC1535CSWPBF Summary of contents
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FEATURES n UL Rated Isolated RS485: 2500V UL Recognized File #E151738 ® n Eliminates Ground Loops n 250kBd Maximum Data Rate n Self-Powered with 420kHz Converter n Half- or Full-Duplex n Fail-Safe Output High for Open or Shorted Receiver Inputs ...
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LTC1535 ABSOLUTE MAXIMUM RATINGS (Note GND ................................................................. GND2 ..............................................................8V CC2 Control Input Voltage to GND ....... – 0. Driver Input Voltage to GND ..........–0. Driver Output Voltage (Driver Disabled) to ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V V Supply Range Supply Range CC2 CC2 I V Supply Current Supply Current CC2 CC2 V Differential Driver Output ...
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LTC1535 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER t Data Sample Jitter SJ f Max Baud Rate MAX t Driver Input to Output PLH t Driver Input to Output PHL Driver Rise ...
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TYPICAL PERFORMANCE CHARACTERISTICS V Supply Current CC vs Temperature 130 COOPER CC CTX02-14659 120 TRANSFORMER 110 R = 54Ω L 100 120Ω OPEN –50 –25 0 ...
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LTC1535 TYPICAL PERFORMANCE CHARACTERISTICS Receiver Output High Voltage vs Temperature 4 8mA 4 4.5V CC 3.5 3.0 –50 – 100 125 150 TEMPERATURE (°C) 1535 G10 Driver Output ...
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PIN FUNCTIONS POWER SIDE V (Pin 1): 5V Supply. Bypass to GND with 10μF CC capacitor. ST1 (Pin 2): DC Converter Output Transformer. ST2 (Pin 3): DC Converter Output Transformer. GND (Pin 4): Ground. ...
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LTC1535 TEST CIRCUIT 10μ MAX RO BAUD RATE GND 4 1 LOGIC COMMON 1 Figure 1. Self-Oscillation at Maximum Data Rate (Test ...
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SWITCHING TIME WAVEFORMS – OD2 A – B –V OD2 ...
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LTC1535 APPLICATIONS INFORMATION Isolation Barrier and Sampled Communication The LTC1535 uses the SW-28 isolated lead frame package to provide capacitive isolation barrier between the logic interface and the RS485 driver/receiver pair. The barrier provides 2500V of isolation. Communication between RMS ...
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APPLICATIONS INFORMATION Driver Output and Slow Slew Rate Control The LTC1535 uses a proprietary driver output stage that allows a common mode voltage range that extends beyond the power supplies. Thus, the high impedance state is maintained over the full ...
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LTC1535 APPLICATIONS INFORMATION Table 1. List of Transformers Designed for LTC1535 MANUFACTURER Cooper Cooper Epcos AG (Germany) (USA) Midcom Minntronix Pulse FEE (France) Sumida (Japan) Transpower Table 2. Fault Mode Behavior FUNCTION (PINS) DC/DC Converter ( ...
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APPLICATIONS INFORMATION High Voltage Considerations The LTC1535 eliminates ground loops on data commun- ication lines. However, such isolation can bring potentially dangerous voltages onto the circuit board. An example would be accidental faulting to 117V AC at some point on ...
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LTC1535 APPLICATIONS INFORMATION DI Y-Z Figure 13. Driver Propagation Delay with Sample Jitter. SLO = Figure 15. Driver Output. = 5V, SLO = 27Ω, V CC2 Y-Z Figure 17. Driver Differential Output. = 5V, ...
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TYPICAL APPLICATION RO RE LTC1535 DE DI (20a) Noninverting Figure 20. Confi guring Receiver for TTL Level Input. Y and Z Outputs Are TTL Compatible with No Modifi cation 2 ST1 10μ ...
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LTC1535 PACKAGE DESCRIPTION 28-Lead Plastic Small Outline Isolation Barrier (Wide .300 Inch) .291 – .299** (7.391 – 7.595) .010 – .029 45° (0.254 – 0.737) .009 – .013 (0.229 – 0.330) NOTE 2 .016 – .050 (0.406 – 1.270) NOTE: ...
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REVISION HISTORY (Revision history begins at Rev B) REV DATE DESCRIPTION B 12/09 Update Manufacturer’s Information on Typical Application and Figure 10 Revise Receiver Input Hysteresis Conditions Revise Block Diagram Revise Figure 1. Update Tables 1 and 3 Information furnished ...
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LTC1535 TYPICAL APPLICATION T1 ST1 ST2 “SDO” “SCK” CC1 LOGIC 5V + 10μF 1 10V TANT ISOLATION 1 BARRIER RELATED PARTS PART NUMBER DESCRIPTION LT1424-5 Isolated Flyback Switching Regulator LTC1485 High Speed RS485 Transceiver ...