RedWave Labs Linear Temperature Controllers come in three versions: LTC25 with maximum current capabilities of 2.5A respectively, single supply operation (+5 to 30V) and temperature stability down to 0.001K. LTC25 has a variable current limiter up to the maximum current, various sensor capabilities (thermistors, RTDs, AD590, LM335), variable P-I setting, LED monitors and remote shutdown.
| Parameter | Description | LTC 25 |
|---|---|---|
| Power | Single | +5 V to 30 V (Vdd) |
| Input sensor | NTC, PTC thermistor | 10μA, 100μA, 200μA,1 mA activation current |
| AD590 | 1μA/K output, LTC has 10.0 KOhm load resistor | |
| RTDs | 1mA, 10mA activation current | |
| LM135 | 10 mV/K output, 1 mA activation current | |
| Compliance voltage | Smaller of 5V or Vdd-0.5V | |
| Temperature | Internal Set point | 11 turn potentiometer 0-5V, jumper selected |
| External Set point | 0-5 V through 14 pin connector, jumper selected | |
| Stability Over 1 hour | 0.001 C (with 20 K thermistor) | |
| Output | Bipolar current | +/-2.5A |
| Current limit | Symmetrical 0 to Imax | |
| Compliance voltage | Vdd-0.5V | |
| P-I control | Proportional (2-100 A/V) and Integral (0.55-5 A/(V x sec) | |
| Heat dissipation | 60 W maximum without heatsink | |
| Security | Disable current if sensor voltage drops below 0.4V | |
| Connector | 14 pin Molex MiniFit | |
| Monitor | Current limit | 10 bar LED 0 to Imax |
| Set point error | Coarse indication of set point error with variable gain | |
| Dimensions (WxHxD) | 89 x 89 x 28 mm | |
| Weight | 195 g | |
| Storage Temp | -55 to 100 C | |
| Operating Temp | -40 to 85 C |
| Parameter | Description | LTC 100 | LTC 50 | LTC 25 |
|---|---|---|---|---|
| Power | Single | +5 V to 30 V (Vdd) | +5 V to 30 V (Vdd) | +5 V to 30 V (Vdd) |
| Input sensor | NTC, PTC thermistor | 10μA, 100μA, 200μA,1 mA activation current | 10μA, 100μA, 200μA,1 mA activation current | 10μA, 100μA, 200μA,1 mA activation current |
| AD590 | 1μA/K output, LTC has 10.0 KOhm load resistor | 1μA/K output, LTC has 10.0 KOhm load resistor | 1μA/K output, LTC has 10.0 KOhm load resistor | |
| RTDs | 1mA, 10mA activation current | 1mA, 10mA activation current | 1mA, 10mA activation current | |
| LM135 | 10 mV/K output, 1 mA activation current | 10 mV/K output, 1 mA activation current | 10 mV/K output, 1 mA activation current | |
| Compliance voltage | Smaller of 5V or Vdd-0.5V | Smaller of 5V or Vdd-0.5V | Smaller of 5V or Vdd-0.5V | |
| Temperature | Internal Set point | 11 turn potentiometer 0-5V, jumper selected | 11 turn potentiometer 0-5V, jumper selected | 11 turn potentiometer 0-5V, jumper selected |
| External Set point | 0-5 V through 14 pin connector, jumper selected | 0-5 V through 14 pin connector, jumper selected | 0-5 V through 14 pin connector, jumper selected | |
| Stability Over 1 hour | 0.001 C (with 20 K thermistor) | 0.001 C (with 20 K thermistor) | 0.001 C (with 20 K thermistor) | |
| Output | Bipolar current | +/-10A | +/-5A | +/-2.5A |
| Current limit | Symmetrical 0 to Imax | Symmetrical 0 to Imax | Symmetrical 0 to Imax | |
| Compliance voltage | Vdd-2.5V | Vdd-1V | Vdd-0.5V | |
| P-I control | Proportional (2-100 A/V) and Integral (0.55-5 A/(V x sec) | Proportional (2-100 A/V) and Integral (0.55-5 A/(V x sec) | Proportional (2-100 A/V) and Integral (0.55-5 A/(V x sec) | |
| Heat dissipation | 60 W maximum without heatsink | 60 W maximum without heatsink | 60 W maximum without heatsink | |
| Security | Disable current if sensor voltage drops below 0.4V | Disable current if sensor voltage drops below 0.4V | Disable current if sensor voltage drops below 0.4V | |
| Connector | 14 pin Molex MiniFit | 14 pin Molex MiniFit | 14 pin Molex MiniFit | |
| Monitor | Current limit | 10 bar LED 0 to Imax | 10 bar LED 0 to Imax | 10 bar LED 0 to Imax |
| Set point error | Coarse indication of set point error with variable gain | Coarse indication of set point error with variable gain | Coarse indication of set point error with variable gain | |
| Dimensions (WxHxD) | 89 x 89 x 28 mm | 89 x 89 x 28 mm | 89 x 89 x 28 mm | |
| Weight | 195 g | 195 g | 195 g | |
| Storage Temp | -55 to 100 C | -55 to 100 C | -55 to 100 C | |
| Operating Temp | -40 to 85 C | -40 to 85 C | -40 to 85 C |
LTC2050 Linear Temperature Controllers
Linear Temperature Controller, 1 mK stability, asymmetric 2.5 A heating, 5 A cooling
For a symmetric current versions, see LTC25, LTC50 and LTC100
$478
LTC100 Linear Temperature Controllers
Linear Temperature Controller, 1 mK stability 10 A version.
For lower current versions, see LTC25, LTC50, for an asymmetric temperature controller see LTC2050
$478
LTC50 Linear Temperature Controllers
Linear Temperature Controller, 1 mK stability 5 A version.
For a higher current versions, see LTC 100; for a lower current version LTC25, for an asymmetric version see LTC2050
$410