Intersil ISL70002SEHEVAL3Z, Руководство пользователя

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R34UH0002EU0100 Rev.1.00 Page 4
Aug 16, 2022
ISL70002SEHEVAL3Z Evaluation Board Manual
1.2 Onboard Resistor Instructions
1. The configuration shown in Figure 3 uses onboard series resistors to emulate resistive loss in a PCB or IC
package.
2. Install VSNS_LOAD and GSNS_LOAD jumpers.
3. Connect the DC load to the LOAD_VOUT and LOAD_GND terminals. Solder, clip, or bolt wires to the terminals.
4. Connect one voltmeter to the VOUT and GND terminals. Connect another to the VOUT_SNS and GND_SNS
terminals as shown in Figure 3 .
5. Enable, disable, and modulate the DC load to observe the POL converter compensating for the trace
impedance. This includes 4m Ω of onboard chip resistors and parasitic resistance of the evaluation PCB.
Observations should be similar to Figure 19 .
Figure 3. On-Board Series Resistor Diagram
VOUT
VIN
GND_SNS
GND
ISL70002
VOUT_SNS
GND
ISL70002SEHEVAL3Z
PGND
500nH
LOAD_VOUT
LOAD_GND
2m
Ω
2m Ω
AGND
FB
VSNS_LOAD
GSNS_LOAD
Power
Supply
LOAD
Voltmeter
Voltmeter
FB Network