BL6501 Datasheet, PDF (1/15 Pages) List of Unclassifed Manufacturers – Single Phase Energy Meter IC

BL6501 Single Phase Energy Meter IC
FEATURES
High accuracy, less than 0.1% error over a
dynamic range of 500 : 1
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 2.42V ± 8%
(typical temperature coefficient of 30ppm/℃)，with
external overdrive capability
Single 5V supply
Low static power (typical value of 15mW).
The technology of SLiM (Smart–Low–current–
Management ) is used.
Credible work, working time is more than twenty
years
DESCRIPTION
The BL6501 is a low cost, high accuracy, high
stability, simple peripheral circuit electrical energy
meter IC. The meter based on the BL6501 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.
The BL6501 incorporates a novel fault detection
scheme that both warns of fault conditions and allows
the BL6501 to continue accurate billing during a fault
event. The BL6501 does this by continuously
monitoring both the phase and neutral (return)
currents. Fault condition is indicated by PIN19
(FAULT), when these currents differ by more than
12%. Billing is continued using the larger of the two
currents when the difference is greater than 14%.
The BL6501 supplies average real power
information on the low frequency outputs F1 (Pin23)
and F2 (Pin24). These logic outputs may be used to
directly drive an electromechanical counter and
two-phase stepper motors. The CF (Pin22) logic
output gives instantaneous real power information.
This output is intended to be used for calibration
purposes or interface to an MCU.
BL6501 thinks over the stability of reading
error in the process of calibration.. An internal no-load
threshold ensures that the BL6501 does not exhibit
any creep when there is no load.
Interrelated patents are pending
BLOCK DIAGRAM
VREF
AVDD
DVDD 1
AC/DC 2
AVDD 3
V1A 4
V1B 5
V1N 6
V2N 7
V2P 8
RESET 9
VREF 10
AGND 11
SCF 12
BL6501
24 F1
23 F2
22 CF
V1A
21 DGND
20 REVP
19 FAULT
V1B
V1N
18 CLKOUT
17 CLKIN
16 G0
15 G1
V2P
V2N
14 S0
13 S1
voltage
reference
current
sampling
analog
to digital
high
pass
filter
voltage
sampling
analog
to digital
high
pass
filter
input control
power
detector
BL6501
digital
multiplication
low
pass
filter
digital to
frequency
and
output
logical control
DIP/SSOP 24
G0 G1
AC/DC RESET SCF S0 S1
www.belling.com.cn
- 1/15 -
Shanghai Belling Co., Ltd 810 Yishan Rd., Shanghai, China 200233 Tel [phone] Fax [phone]
v1.20
FAULT
REVP
CF
F1
F2