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dc2060af

DEMO MANUAL DC2060A

Quick start proceDure

Figure 1. DC2060A Measurement Setup

1. Connect a 12V power supply to the board input turrets

IN and GND. Do not load the output. Use the current

probe to monitor current into the wire between the 12V

supply and board turret. Place the voltage probes on

the OUT turret.

Provide the EN signal by changing the shunt position

of JP7 and observe the transient. The output voltage

rise time should be in the range of 9.2ms to 19ms. The

PWRGD green LED (D5) should light up. Turn off the

rail with JP7.

2. Initiallyadjusttheelectronicloadto2.0Ωto2.5Ω(inthe

constantresistivemode)andconnectittotheboardOUT

and GND turrets. Turn on the rail and slowly increase

the load current up to the circuit breaker threshold level.

The current limit range should be from 8.9A to 11.2A.

Reset the controller by turning off the rail voltage.

3. Short the output to ground with a wire. Place the cur-

rent probe on this wire. Turn on the rail and record the

current shape. The maximum current should be in the

2.4A to 4.3A range while the fault timer capacitor is

ramping from 0.9ms to 1.8ms. After a fault, the Hot

SwapMOSFETwillbeoffapproximately50timeslonger.

Ideal Diode Functionality Test

An additional 12V regulated power supply and a Schottky

diode are needed for this test.

Connect the positive terminal of this supply through the

negative terminal to GND. Place a voltmeter between the

the two input voltages. Activate both rails and keep a load

of around 1A to 3A. Adjust the input voltage levels and

verify that when the difference between the input voltages

exceeds 65mV only one rail powers the load.