ES51968(6600counts)
Dual Display/Inrush
2.
Operating Modes
2.1. Voltage Measurement
A re-configurable voltage divider automatically provides a suitable range in voltage
measurement mode. The following table summarizes the full-scale ranges in each
configuration.
Configuration
1
VR1
VR2
VR3
2
VR4
VR5
Note:
1.
2.
660.0mV range only exists in manual mode.
If VST (pin113) is set to V- level, the auto range mode will start from 660.0V range.
660.0mV – 66.00V ranges only exist in manual mode
Full Scale Range
660.0mV
6.600V
66.00V
660.0V
1000V
Divider Ratio
1
1/10
1/100
1/1000
1/10000
Resister Connection
VR1 (10MΩ)
VR2 (1.111MΩ)
VR3 (101KΩ)
VR4 (10.01KΩ)
VR5 (1KΩ)
2.1.2 CE selection
ES51968 has a CE selection feature archived by configuring the pin CESEL. In automatic
voltage mode, ES51968 will show OL when the voltage is over than the overflow level. If
CESEL is connected to V- or DGND, ES51968 will have a 610.0V or 1010V overflow level
in voltage mode relatively. If CESEL keeps floating, the overflow level will be set to 1510V
in DCV and ACV mode. The configuration of CESEL is listed below.
For fully automatic voltage modes:
CESEL
floating
V-
DGND
DCV
1510V
610V
1010V
ACV
1010V
610V
1010V
v2.5
8
09/04/14
CYRUSTEK [ Cyrustek corporation ]
