BL0921 Datasheet PDF - Shanghai Belling Co., Ltd.
Part Name
BL0921
Other PDF
no available.
PDF
page
13 Pages
File Size
437.2 kB
MFG CO.
Shanghai Belling Co., Ltd.
DESCRIPTION
The BL0921 is a low cost, high accuracy, high stability, simple peripheral circuit electrical energy meter IC. The meter based on the BL0921 is intended for using in single-phase, two-wire distribution systems. It can exactly measure the real power in the positive orientation and negative orientation and calculate the energy in the same orientation.
FEATURES
● High accuracy, less than 0.1% error over a
dynamic range of 500: 1
● On-chip oscillator as clock source
● Exactly measure the real power in the positive
orientation and negative orientation, calculate the
energy in the same orientation
● Two current monitors continuously monitor the
phase and neutral currents in two-wire distribution
systems. Uses the larger of two currents to bill, even
during a Fault condition
● A PGA in the current channel allows using small
value shunt and burden resistance
● The low frequency outputs F1 and F2 can
directly drive electromechanical counters and two
phase stepper motors and the high frequency output
CF, supplies instantaneous real power, is intended for
calibration and communications
● Two logic outputs REVP and FAULT can be used
to indicate a potential orientation or Fault condition
● On-Chip power supply detector
● On-Chip anti-creep protection
● On-Chip voltage reference of 2.5V± 8%
● Single 5V supply
● Low static power (typical value of 25mW).
The technology of SLiM (Smart–Low–current–
Management) is used.
● Credible work, working time is more than twenty
years
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