On Semiconductor CAT4201 Evaluation Board CAT4201AGEVB CAT4201AGEVB Data Sheet

This document describes the test procedure for the

CAT4201 evaluation board. The test procedure must be
followed step-by-step in order to verify that the evaluation
board is fully functional.

The CAT4201 evaluation board must have the jumper J1

installed between pins 2 and 3 (right position).

The test set-up uses the LED module plugged into the

CAT4201 evaluation board.

The LED current is measured by removing the LED

module jumper J2 and connecting an ammeter (A) between
those two pins, see figure below.

A

I

LED

 = 300 mA

V = 0.22 V

V

S

 = 12 V

I

SUPPLY

 = 100 mA

V

PS

+

−

Legend:

ƒ (PS) = 12 V DC power supply, connected between GND and VBAT 
ƒ (A) = Ammeter, connected to LED module across J2 connector (jumper removed) 
ƒ (V) = Voltmeter, connected between R1/R2 midpoint and GND

Note: The LED of the LED module is very bright and should be covered for eye protection.

The test procedure is achieved by following the sequence

below step-by-step.

1. Connect the voltmeter (V) between R1/R2

midpoint and GND.

2. Connect the power supply (PS) between VBAT (+)

and GND (−).

3. Turn the power supply on.
4. Measure the voltage on voltmeter (V).
5. Turn the potentiometer R2 and adjust until voltage

is 0.22 V.

6. Measure the LED current (A).
7. The LED current must be between:

270 mA 

 I

LED

  330 mA.

8. Measure the supply current on the power supply.
9. The supply current must be between:

90 mA 

 I

SUPPLY

  115 mA.

10. Turn off the power supply (PS).

11. Disconnect the CAT4201 evaluation board.