Details

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BUY TL494L https://www.utsource.net/itm/p/12541828.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	8	-	40	V
Supply Current	Icc	No load, Vcc = 15V	-	10	-	mA
Operating Temperature Range	Ta	-	-40	-	85	°C
Storage Temperature Range	Tstg	-	-65	-	150	°C
Output Voltage (High)	Vo(H)	Io = 0mA, Vcc = 15V	-	13.5	-	V
Output Voltage (Low)	Vo(L)	Io = 150mA, Vcc = 15V	-	0.7	-	V
Output Current (Sink)	Isink	Vo = 0.7V	-	200	-	mA
Output Current (Source)	Isource	Vo = 13.5V	-	100	-	mA
Frequency Range	fosc	Rsc = 5kΩ, Csc = 1nF	40	100	500	kHz
Duty Cycle Range	D	-	0	-	100	%
Dead Time	tdead	-	1.5	-	5	μs

Instructions for Using TL494L

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 8V to 40V.
   • The typical supply current (Icc) at no load with Vcc = 15V is 10mA.

2. Operating Temperature:

   • The device operates within a temperature range of -40°C to 85°C.
   • Store the device in a temperature range of -65°C to 150°C.

3. Output Voltage:

   • The output voltage when high (Vo(H)) is typically 13.5V at no load with Vcc = 15V.
   • The output voltage when low (Vo(L)) is typically 0.7V at 150mA load with Vcc = 15V.

4. Output Current:

   • The maximum sink current (Isink) is 200mA at Vo = 0.7V.
   • The maximum source current (Isource) is 100mA at Vo = 13.5V.

5. Frequency and Duty Cycle:

   • Set the frequency using the external resistor (Rsc) and capacitor (Csc). For example, with Rsc = 5kΩ and Csc = 1nF, the frequency range is 40kHz to 500kHz.
   • The duty cycle can be adjusted from 0% to 100%.

6. Dead Time:

   • The dead time (tdead) is between 1.5μs and 5μs, which helps prevent cross-conduction in push-pull configurations.

7. Pin Configuration:

   • Refer to the datasheet for the pin configuration and functions.
   • Connect the power supply (Vcc) and ground (GND) pins correctly.
   • Use the output pins (OUT1, OUT2) for driving external circuits or transistors.

8. Protection:

   • Implement appropriate protection circuits to handle overvoltage, overcurrent, and thermal conditions.

9. Layout Considerations:

   • Ensure proper PCB layout to minimize noise and improve performance.
   • Keep power and ground traces wide and short to reduce resistance and inductance.

For detailed information and specific applications, refer to the TL494L datasheet provided by the manufacturer.

(For reference only)