Datasheet

Power-Up Procedures

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6 Power-Up Procedures

CAUTION

Read the entire power-up procedures prior to applying power to the evaluation

board.

The LM10011 evaluation kit hardware is shown in Figure 3. The board offers a connection for the system

input voltage on the left side and a connection for the load on the bottom. To the right of the LM10011

evaluation module is a communications dongle. It is connected to the board through the 10 pin right angle

header and is used to communicate with the LM10011. A USB cable connects the dongle to a USB port

on the computer for software control.

Figure 3. LM10011 Evaluation Kit Hardware

6.1 Quick Setup Procedure

Step 1:Before connecting the input power supply, set the output of the power supply to current limit at 10A

and output voltage two any voltage between 2.97V and 5.5V. Disable the power supply output. Connect

the positive output (+) of the power supply to VIN and the negative output (-) to the corresponding GND.

Be sure to disable the output of the power supply before connecting it to the evaluation board.

Minimize the inductance between the power supply and the evaluation board to mitigate any

voltage spikes that may occur.

Step 2: Connect the load (with 15A capability) positive (+) input to VOUT and negative (-) input to the

corresponding GND on the evaluation board.

Step 3: The ENABLE pin should be left open for normal operation.

Step 4: Activate the output of the power supply. The load voltage should be in regulation with a nominal

0.9V output.

Step 5: Slowly increase the load while monitoring the load voltage at VOUT SENSE. It should remain in

regulation with a nominal 0.9V output as the load is increased up to 15A.

Step 6: Slowly sweep the input source voltage from 2.97V to 5.5V (DO NOT EXCEED 5.5V). The load

voltage should remain in regulation with a nominal 0.9V output. If desired, the output of the device can be

disabled by connecting the ENABLE pin to GND.

Step 7: The LM21215A-1 switching frequency can be varied by connecting a 2.0V clock signal between

SYNC and GND.

LM10011 Evaluation Module SNOU108A–December 2012–Revised April 2013

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