Daim Ntawv Qhia Tus Neeg Siv

2. Quick Start Procedure
Required Equipment
•
3 V Power Supply or 3 V Battery
• 2 Digital Multimeters
• 1 Oscilloscope
• 1 Potentiometer
To use the TS1108 evaluation board, perform the following steps:
1. Configure JP3 so that the Jumper Shunt is connecting VDD to VREF.
2. Configure JP5 so that the jumper shunt is connecting COUT and SW_RST.
3. Connect the 3 V power source to RS+ and VDD.
4. Use a voltmeter to measure the V
VBIAS
and the CIN– voltage. V
VBIAS
should be 50% of VDD, 1.5 V. CIN– should be 90% of VDD,
2.7 V.
5. Connect a voltmeter to measure V
OUT
. With no load connected V
OUT
should be equal to V
VBIAS
. The expression for the V
OUT
output voltage is defined by:
V
O
UT
= V
BIAS
− I
LOAD
× 50mΩ × GAIN
6. Connect an ammeter in series from RS– to a potentiometer. Adjust the POT until the ammeter reads:
• TS1108-20: 500 mA
• TS1108-200: 50 mA
V
OUT
should equal 1 V.
7. Connect the oscilloscope to COUT. COUT should produce a periodic pulsing waveform with a period of 11.28 ms, where each
monoshot pulse width is 90 µs (typ).
Figure 2.1. TS1108DB Circuit Schematic
TS1108 Coulomb Counter User's Guide
Quick Start Procedure
silabs.com | Smart. Connected. Energy-friendly. Rev. 1.0 | 2
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.