52458 MICROPAC | Alldatasheet
Document overview
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Technical content
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION ·· 905 E. Walnut St., Garland, TX 75040 ·· (972) 272-3571 ·· Fax (972) 494-2281 www.micropac.com E -MAIL: microsales@micropac.com 5/19/05 Page 1 of 7
52458 Dual Current-to-Current Opto-Isolator,
High Temperature (200°C) Mii Features:
- Hermetically Sealed Package
- Optically Coupled
- Input/Output Isolation Tested to 1000 VDC
- 200°C Operation Applications:
- Signal Isolation
DESCRIPTION
The 52458 is a Current-to-Current Opto-Isolator designed for high temperature applications to 200ºC. Functionally, the device operates as a Current -to-Current Transformer with an output current proportional to the input current. The current transfer ratio is tightly controlled for temperatures from 25ºC through 200ºC. ABSOLUTE MAXIMUM RATINGS RECOMMENDED OPERATING CONDITIONS: Parameter Symbol Min. Max. Units Output Voltage VO 1.0 VDC Input Current IF (ON) 5 15 mA Input Voltage VF 1.1 1.6 VDC Operating Case Temperature TC -55 200 °C
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION ·· 905 E. Walnut St., Garland, TX 75040 ·· (972) 272-3571 ·· Fax (972) 494-2281 www.micropac.com E -MAIL: microsales@micropac.com 5/19/05 Page 2 of 7
52458 Current -to-Current Opto-Isolator, High
TC= 25°C to +200°C unless otherwise specified Parameter Sym. Min. Typ.* Max. Units Test Conditions Notes Input / Output Forward Voltage VF 1.6 2.2 VDC IF = 10 mA Input / Output Reverse Breakdown Voltage VR 6 40 VDC IR = 10 µA Input-Output Leakage II-O 1 µA RH ≤ 45%, t = 5 s VI-O = 1000 VDC TC = 25°C 1,2 Turn-On Time tON 150 ns Turn-Off time tOFF 100 ns Rise Time tR 130 ns Fall Time tF 90 ns IF = 2.5 mA EO = OV, shorted NOTE 4 Output Current 80 µA IF = 10 mA Notes: 1. Input pins are shorted together and output pins are shorted together. 2. Input-output potential applied momentarily, not an operating condition. 3. Rise time is measured from 10% to 90% of output current. Fall time is measured from 90% to 10% of out put. 4. Measured values limited by the test Transimpedance circuit.
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible.
52458 Dual Current-to-Current Opto-Isolator, High
Figure 1. Output Current vs. Temperature Figure 2. Output Current vs. Input Current (0.5mA – 5mA)
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible.
52458 Dual Current -to-Current Opto-Isolator, High
Figure 3. Output Current vs. Input Current (0.5mA – 20mA)
- ESD symbol (Δ) indicates pin 1.
Table 1. Pin Outs
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible. Figure 4. Case Outline 52458.01 Isolated Current Monitor. collector current of Q1. Q1 and Q3 form a current mirror with an Emitter current ration if R3 / R2. A Q3 emitter current of 0.5A represents a 0.010A current at the emitter of Q1 and a total load current of 0.510A. circuit case, 1 µA of Detector current produces a 0.1V output.
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION ·· 905 E. Walnut St., Garland, TX 75040 ·· (972) 272-3571 ·· Fax (972) 494-2281 www.micropac.com E -MAIL: microsales@micropac.com 5/19/05 Page 6 of 7 Circuit Voltage verses Output Current 100 150 200 250 300 350 400 450 Circuit voltage Drop I Output
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. Micropac reserves the right to make changes at any time in order to improve design and to suppl y the best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION ·· 905 E. Walnut St., Garland, TX 75040 ·· (972) 272-3571 ·· Fax (972) 494-2281 www.micropac.com E -MAIL: microsales@micropac.com 5/19/05 Page 7 of 7 The following chart illustrates the Optocoupler output as a function of Load current for the circuit of Figure 1. Vin I Load Voltage across V Out Volts mA Power Circuit 10 0 2.487 .12 10 140 3.297 1.95 10 233 3.849 3.43 10 330 4.353 4.87 10 427 4.888 6.37 30 0 2.517 .19 30 140 3 1.96 30 233 3.837 3.42 30 330 4.376 4.89 30 427 4.876 6.36 The following chart illustrates the effects of temperature on the Coupler output. Vin Volts I Load mA Temp. Deg, C I Out uA 20 0.33 25 48.8 20 0.33 125 48.7 20 0.33 150 47 Temp effects @ 0.33A 4.6 4.65 4.7 4.75 4.8 4.85 4.9 25 125 150 Temperature V Output V out / I out verses input Voltage 0 140 233 330 427 mA Output V Output