Rainbow-electronics DS2745 Bedienungsanleitung

1 of 14 091405 FEATURES 16-Bit Bidirectional Current Measurement 1.56mV LSB, ±51.2mV Dynamic Range 104mA LSB, ±3.4A Dynamic Range (RSNS

DS2745 Low-Cost I2C Battery Monitor 10 of 14 CURRENT BLANKING The Current Blanking feature modifies current measurement result prior to being accumu

DS2745 Low-Cost I2C Battery Monitor 11 of 14 Table 5. MEMORY MAP ADDRESS (HEX) DESCRIPTION READ/WRITE POR DEFAULT 00 Reserved — 01 Status/Con

DS2745 Low-Cost I2C Battery Monitor 12 of 14 2-WIRE BUS SYSTEM The 2-Wire bus system supports operation as a slave only device in a single or multi-

DS2745 Low-Cost I2C Battery Monitor 13 of 14 Read/Write Bit The R/W bit following the slave address determines the data direction of subsequent byte

DS2745 Low-Cost I2C Battery Monitor 14 of 14 Write Data Protocol The write data protocol is used to write to register and shadow RAM data to the DS2

DS2745 Low-Cost I2C Battery Monitor 2 of 14 ABSOLUTE MAXIMUM RATINGS* Voltage on All Pins Relative to VSS -0.3V to +6V Operating Temperature Range

DS2745 Low-Cost I2C Battery Monitor 3 of 14 ±2 -20°C ≤ TA ≤ +70°C, 2.5V ≤ VDD ≤ 5.5V ±3 Input Resistance, VIN RIN 15 MW Input Logic H

DS2745 Low-Cost I2C Battery Monitor 4 of 14 Note 1: All voltages are referenced to VSS. Note 2: Offset specified after auto-calibration cycle and Cu

DS2745 Low-Cost I2C Battery Monitor 5 of 14 PIN DESCRIPTION PIN SYMBOL FUNCTION 1 SCL Serial Clock Input. 2-Wire clock line. Input only. Connect th

DS2745 Low-Cost I2C Battery Monitor 6 of 14 DETAILED DESCRIPTION Current is measured bidirectionally over a dynamic range of ±51.2mV with a resoluti

DS2745 Low-Cost I2C Battery Monitor 7 of 14 POWER MODES The DS2745 operates in one of two power modes: active and sleep. While in active mode, the D

DS2745 Low-Cost I2C Battery Monitor 8 of 14 Figure 5. TEMPERATURE REGISTER FORMAT MSB—Address 0A LSB—Address 0B S 29 28 27 26 25 24 23 22

DS2745 Low-Cost I2C Battery Monitor 9 of 14 CURRENT ACCUMULATION The Accumulated Current register (ACR) serves as an up/down counter holding a runni