IRPLLED1 International Rectifier, IRPLLED1 Datasheet - Page 26

• Manufacturer Part Number: IRPLLED1
• Description: BOARD EVALUATION FOR IRS2540PBF
• Manufacturer: International Rectifier

Specifications of IRPLLED1

• Current - Output / Channel: 1.5A
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 24V
• Features: Dimmable
• Voltage - Input: 50 ~ 170V
• Utilized Ic / Part: IRS2540PBF
• Core Chip: IRS2540, IRS2541, IRS25401
• Topology: Buck (Step Down)
• No. Of Outputs: 1
• Output Current: 1.5A
• Output Voltage: 500mV
• Dimming Control Type: PWM
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption

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6. All traces carrying the load current need to be adjusted accordingly.
7. Gate drive traces should also be kept to a minimum.
11. Design Procedure Summary
1. Determine the systems requirements: input/output voltage and current needed
2. Calculate current sense resistor
3. Determine the operating frequency required
4. Select L1 and COUT so that they maintain supply into the load during t_HO_on.
5. Select switching components (FET/freewheeling diode) to minimize power losses
6. Determine VCC and VBS supply components
7. Add filtering on the input, IFB and ENN as needed
8. Fine tune components to achieve desired system performance
It’s a general rule of thumb that all components associated with the IC should be connected to the IC ground
with the shortest path possible.
RD-0608
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