5 * Linear Technology LTC2990
8 Datasheet: http://www.linear.com/product/ltc2990
10 Author: Mike Looijmans <mike.looijmans@topic.nl>
16 LTC2990 is a Quad I2C Voltage, Current and Temperature Monitor.
17 The chip's inputs can measure 4 voltages, or two inputs together (1+2 and 3+4)
18 can be combined to measure a differential voltage, which is typically used to
19 measure current through a series resistor, or a temperature.
21 This driver currently uses the 2x differential mode only. In order to support
22 other modes, the driver will need to be expanded.
28 This driver does not probe for PMBus devices. You will have to instantiate
35 The "curr*_input" measurements actually report the voltage drop across the
36 input pins in microvolts. This is equivalent to the current through a 1mOhm
37 sense resistor. Divide the reported value by the actual sense resistor value
38 in mOhm to get the actual value.
40 in0_input Voltage at Vcc pin in millivolt (range 2.5V to 5V)
41 temp1_input Internal chip temperature in millidegrees Celcius
42 curr1_input Current in mA across v1-v2 assuming a 1mOhm sense resistor.
43 curr2_input Current in mA across v3-v4 assuming a 1mOhm sense resistor.