DM2018

DM2018 bq2018 Power Minder™ Demonstration Module Features ä ä ä ä ä Complete bq2018 circuit Combines the bq2018, voltage regulator, sense resistor, and backup capacitor on a single PCB Works for any battery pack chemistry or capacity Communicates charge/discharge information to a host with a single-wire interface Direct connections for the pack cells and communications port General Description The DM2018 Power Minder Demonstration Module is a typical implementation for the bq2018 Power Minder IC. The DM2018 incorporates a bq2018 Power Minder IC, supply voltage regulator, sense resistor, and backup capacitor on a small circuit board. The module provides direct connections for the positive and negative terminals of the series cells in the battery pack, and can fit in the crevice formed by two adjacent cells. The DM2018 allows a battery pack to be equipped easily with bq2018 electronics for evaluation of the IC in the application. Pin Descriptions BAT+ BATHDQ PACKWAKE RBI VCC Battery positive/pack positive Battery negative Communications port Pack negative Wakeup output Register backup input bq2018 supply voltage www.DataSheet4U.com SLUU064 - APRIL 2000 1 DM2018 Battery Pack Cells BATbq2118 PACKPACKLoad PACK+ BAT+ Charger FG2118MCD.eps Figure 1. Module Connection Diagram bq2118 Schematic BAT+ d R6 Q1 SST113 WAKE 1K www.DataSheet4U.com s C5 0.01µF 2 D2 BZX84C5V6 U1 1 2 3 4 REG VCC VSS HDQ WAKE SR1 SR2 RBI 8 7 6 5 R2 BATC2 0.1µF 100K VCC VCC C1 0.1µF BQ201...