HMHA2801R3V

Output Type:	Transistor
Supplier Device Package:	4-Mini-Flat
Package / Case:	4-SOIC (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	300mV
Current - DC Forward (If) (Max):	50mA
Voltage - Forward (Vf) (Typ):	1.3V (Max)
Current - Output / Channel:	50mA
Voltage - Output (Max):	80V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	3µs, 3µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	600% @ 5mA
Current Transfer Ratio (Min):	80% @ 5mA
Voltage - Isolation:	3750Vrms
Number of Channels:	1
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Optoisolators are electronic isolation components which are used to electrically insulated input and output signal. This limits the effects one circuit has on another. The type of components are divided into photocouplers and optocouplers. HMHA2801R3V is a part of optocoupler series. It has a two-channel lateral-type phototransistor, integrated on a single chip and designed for bidirectional data communication. It integrates a light emitting diode that receives an input signal and transmits it through a phototransistor, that in turn produces an output signal.The sensor element is a two-channel lateral-type phototransistor. The collector current Ic max is 7.5mA in each branch. The peak current for each branch is 15mA. Its working temperature is between -40℃ and +85℃. Its isolation resistance is 1000M Ω.Applications of HMHA2801R3V include applications with the need of bidirectional communication like I/O interface, PLC (Programmable Logic Controller) and Programmable Automation Controller (PAC). It is very useful in allowing low-level, low-primary current drives to use higher voltage supplies, such as the control and secondary switching of electrical power supplies.The preferred principle usage of the HMHA2801R3V is to use the light emission of the LED side to turn the transistor on and off. Light from the LED can control the flow of current through the phototransistor. The diode and phototransistor are isolated from each other so the voltage for the LED will be different for the phototransistor. The LED’s output is limited to the LED’s Vf, so the transistor output current can be much larger than the LED’s if a voltage higher than the LED’s Vf is applied.The typical circuit of HMHA2801R3V is below:The LED will be turn on when Vf is applied to the LED’s anode. The current will flow from the collector to the emitter of the phototransistor side, which will complete the circuit and turn on the phototransistor. When the LED is off, the phototransistor will also be off. By controlling the LED light, the phototransistor can be turned on and off.In conclusion, HMHA2801R3V is a type of optocoupler that is suitable for applications where bidirectional data communication is needed. It is an electronic isolation component that allows low-level, low-primary current drives to use higher voltage supplies. It is typically used to allow the light emission of the LED side to turn the phototransistor on and off, and isolated from each other.

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