Datasheet

2.1 Equipment
2.1.1 POWER SUPPLIES
2.1.2 METERS
2.1.3 OSCILLOSCOPE
2.1.4 COMPUTER
2.1.5 COMPONENTS
2.2 EQUIPMENT SETUP
Chapter 2
SLUU214A – December 2004 – Revised June 2007
Basic Functions Evaluation
Two power supplies capable of supplying 6 V at 1 A are required.
Three Fluke 75 (equivalent or better) or
Two equivalent voltmeters and an equivalent ammeter
An oscilloscope and a single voltage probe are required.
A computer with at least one USB port and a USB cable
A 5- Ω , 50-W resistor
A 12- Ω , 0.5-W resistor
A 36- Ω , 0.25-W resistor
A 500- Ω , 0.25-W resistor
The original test setup is shown in Figure 2-1 .
1. Set power supply #1 for 5.0 ± 0.1 VDC, 1.0 ± 0.1-A current limit, and then turn off the supply. Connect
J1 (DC+, DC–) to power supply #1.
2. Plug one end of the USB cable into the computer USB port. Plug the other end into the USB input
socket J2 on the bqHYBRID EVM.
3. Connect the output of power supply #2 in series with a current meter (multimeter) to J4 (BAT+, BAT–).
4. Connect the 12- Ω , 0.5-W resistor across J3 (SYS, DC–).
5. Shunt jumpers should be installed on J7-LED, J8-LED, J9-0.1, and J10-LED, J11-1 (VBAT).
6. Short J6 pin 1 (EN) and pin 2 (DC–).
SLUU214A – December 2004 – Revised June 2007 Basic Functions Evaluation 7
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