Details

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BUY TLP521 https://www.utsource.net/itm/p/12592074.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Forward Voltage	VF	-	1.2	1.5	V	IF = 10 mA
Peak Forward Current	IF(peak)	-	-	30	mA	tp = 1 ms, IF(AV) = 10 mA
Reverse Breakdown Voltage	VBR(R)	5	-	7	V	IR = 10 μA
Reverse Current	IR	-	100	500	nA	VR = 5 V
Output Collector-Emitter Voltage	VCEO(sat)	-	0.4	0.6	V	IC = 10 mA, VCE = 5 V
Output Collector Current	IC	-	10	30	mA	VCEO = 5 V
CTR (Current Transfer Ratio)	CTR	20	500	1000	%	IF = 10 mA, IC = 10 mA
Isolation Voltage	VISO	1.5	-	2.5	kV	1 min, 50/60 Hz
Storage Temperature Range	TSTG	-40	-	110	°C
Operating Temperature Range	TA	-40	-	85	°C

Instructions for Use:

1. Forward Voltage (V_F): Ensure that the forward voltage across the LED does not exceed 1.5V to avoid damage.
2. Peak Forward Current (I_F(peak)): The peak forward current should not exceed 30mA for more than 1ms to prevent overheating.
3. Reverse Breakdown Voltage (V_BR(R)): The reverse voltage applied to the LED should not exceed 7V to avoid breakdown.
4. Output Collector-Emitter Voltage (V_CEO(sat)): When the output transistor is saturated, the collector-emitter voltage should be kept below 0.6V to ensure proper operation.
5. Output Collector Current (I_C): The maximum collector current should not exceed 30mA to prevent damage to the transistor.
6. CTR (Current Transfer Ratio): The CTR is the ratio of the output collector current to the input forward current. It can vary widely, so design circuits with this in mind.
7. Isolation Voltage (VISO): The device provides isolation up to 2.5kV for 1 minute at 50/60Hz. Ensure that the isolation requirements of your application are met.
8. Storage and Operating Temperature: Store the device between -40°C and 110°C, and operate it between -40°C and 85°C to ensure reliability.

Additional Notes:

• Always use appropriate heat sinks if operating at high currents or temperatures.
• Ensure that the power supply and load are properly decoupled to minimize noise and interference.
• Follow good PCB layout practices to ensure reliable operation and minimize electromagnetic interference (EMI).

(For reference only)