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BUY ISL6217CVZ https://www.utsource.net/itm/p/12399003.html

Below is the parameter table and instructions for the ISL6217CVZ, a 3-Phase Synchronous Buck Controller from Renesas.

ISL6217CVZ Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Test Conditions
Input Voltage Range	VIN	4.5	-	14	V	-
Output Voltage Range	VOUT	0.6	-	5.5	V	-
Operating Frequency	fSW	-	300	1000	kHz	-
Current Limit	ILIM	-	20	40	A	-
Shutdown Current	ISD	-	10	20	μA	VIN = 12V, VOUT = 5V
Enable Input Voltage	VEN	1.2	-	1.8	V	-
Soft Start Time	tSS	1	-	4	ms	-
UVLO Threshold (Rising)	VUVLO_RISE	4.5	-	4.8	V	-
UVLO Threshold (Falling)	VUVLO_FALL	3.9	-	4.2	V	-
Thermal Shutdown Temperature	TSD	-	160	-	°C	-
Package	-	-	-	-	TSSOP-28	-

Instructions for ISL6217CVZ

1. Power Supply Connections:

   • Connect the input voltage (VIN) to the power supply.
   • Ensure that the input voltage is within the specified range (4.5V to 14V).
   • Connect the output voltage (VOUT) to the load.

2. Enable Pin (EN):

   • The enable pin (EN) controls the operation of the controller.
   • Apply a voltage greater than 1.8V to enable the controller.
   • Apply a voltage less than 1.2V to disable the controller.

3. Frequency Setting:

   • The operating frequency can be set using an external resistor (RT) connected between the RT/CLK pin and ground.
   • Use the formula ( f_ = frac{1}{11.3 times 10^3 times R_T} ) to calculate the value of RT.

4. Current Limit:

   • The current limit can be adjusted using an external resistor (RS) connected between the CS+ and CS- pins.
   • Use the formula ( I_ = frac{V_} ) to determine the value of RS, where ( V_ ) is the voltage across the sense resistor.

5. Soft Start:

   • The soft start time can be set using an external capacitor (CSS) connected between the SS pin and ground.
   • Use the formula ( t_ = 1.1 times R_ times C_ ) to calculate the value of CSS, where RSS is the internal resistance.

6. Undervoltage Lockout (UVLO):

   • The UVLO feature ensures that the controller does not operate when the input voltage is below the threshold.
   • The rising threshold is 4.5V to 4.8V, and the falling threshold is 3.9V to 4.2V.

7. Thermal Protection:

   • The controller has built-in thermal shutdown protection that activates at temperatures above 160°C.
   • Ensure proper heat dissipation to prevent overheating.

8. Layout Considerations:

   • Place the input and output capacitors close to the controller to minimize inductance.
   • Use wide traces for high-current paths to reduce resistance and heat generation.
   • Ensure that the PCB layout follows good practices for high-frequency switching circuits to minimize noise and interference.

9. Testing:

   • Before finalizing the design, test the circuit under various load conditions to ensure stable operation.
   • Verify that the output voltage remains within the specified range and that the current limit functions correctly.

10. Application Notes:

    • Refer to the datasheet and application notes for detailed information on specific applications and advanced configurations.
    • For more complex designs, consider using the evaluation board provided by Renesas.

By following these instructions, you can effectively use the ISL6217CVZ in your power supply design.

(For reference only)