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BL6501 Datasheet

  • BL6501

  • Single Phase Energy Meter IC

  • 15頁

  • ETC

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BL6501
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
鹵
8%
(typical temperature coefficient of 30ppm/鈩?錛寃ith
external overdrive capability
Single 5V supply
Low static power (typical value of 15mW).
The technology of SLiM (Smart鈥揕ow鈥揷urrent鈥?/div>
Management )
years
Interrelated patents are pending
is used.
Credible work, working time is more than twenty
Meter
Single Phase Energy Meter IC
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.
BLOCK DIAGRAM
DVDD
AC/DC
AVDD
V1A
V1B
V1N
V2N
V2P
RESET
1
2
3
4
5
6
7
8
9
24
23
22
21
20
VREF
input control
AVDD
power
detector
F1
F2
CF
DGND
REVP
FAULT
CLKOUT
CLKIN
G0
G1
S0
S1
voltage
reference
V1A
V1B
V1N
V2P
V2N
current
sampling
analog
to digital
high
pass
filter
high
pass
filter
BL6501
FAULT
digital
multiplication
low
pass
filter
digital to
frequency
and
output
BL6501
19
18
17
16
15
14
13
REVP
CF
F1
F2
voltage
sampling
analog
to digital
VREF
10
AGND
11
SCF
12
logical control
DIP/SSOP 24
www.belling.com.cn
Shanghai Belling Co., Ltd
810 Yishan Rd., Shanghai, China
G0 G1
AC/DC
RESET
SCF
S0
S1
- 1/15 -
200233
Tel 86-21-64850700
Fax 86-21-64852222
v1.20

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