The MTL4046C is an isolated driver for 4-20mA HART® valve positioners, featuring line fault detection. Its specific characteristics are as follows:
Single-channel
- Operating range: 4-20mA
- Under range: 1.0mA
- Over range: 26.0mA (at 520Ω load)
500Hz to 10kHz
- Maximum load resistance: 800Ω (16V at 20mA)
- Minimum load resistance: 90Ω (short-circuit detection when less than 50Ω)
Greater than 1MΩ
- Less than 4.0V when on-site wiring is intact
- Less than 0.9mA when on-site wiring is open (and MTL4046 is short-circuited)
Transmission accuracy better than 20μA at 20℃
Stabilizes within 200μA of the final value in 100ms
Less than 1.0μA/℃
- Isolation voltage between safe area and hazardous area circuits: 250V AC
- Input circuit is floating
- Current at 24V DC: 58mA
- Current at 20V DC: 70mA
- Current at 35V DC: 40mA
At 20mA loop current:
- Typical power consumption at 24V: 1.2W
- Worst-case power consumption: 1.4W
Equipped with one green power indicator light
