Datasheet > SC7751

SC7751

更新时间： 2024-09-23 06:10:19

品牌	Logo	应用领域
士兰微 - SILAN		电子
页数	文件大小	规格书
9页	522K
描述
ELECTRONIC POWER METER IC WITH ELECTRICITY PROOF

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SC7751 数据手册

SC7751

ELECTRONIC POWER METER IC WITH ELECTRICITY PROOF

DESCRIPTION

The SC7751 is a high accuracy fault-tolerant electrical

energy measurement IC that can provides superior stability

and accuracy over extremes in environmental conditions and

over time. The SC7751 does not exhibit any creep when there

is no load.

SSOP-24

The SC7751 supplies average real power information on the

low frequency outputs F1 and F2. This logic outputs may be

used to directly drive an electromecanical counter or interface

to an MCU. The CF logic output gives instantaneous real

power information. This output is intended to be used for

calibration purposes, or interfacing to an MCU. The SC7751

incorporates the fault detection scheme that warns when the

two input currents differ by more than 12.5%. Billing is

continued using the larger of the two currents.

SDIP-24

* Fault is indicated when the currents differ by

more than 12.5%.

The SC7751 includes a power supply monitoring circuit on

the AVDD supply pin. If the supply falls below 4V, the SC7751

will be reset and F1, F2 will be set to logic high, CF will be set

to logic low at the same time.

* Less than 0.1% error over a dynamic range

of 500 to 1.

* On-chip creep protection (No load

threshold).

The SC7751 provides synchronous frequency output for

auto-reading meter system. The CF logic output is

synchronous with the F1 and F2 logic output to ensure the

show value of the meter is consonant with the real value.

*The logic output REVP can be used to

indicate a potential miswiring or negative

power.

* A PGA in the current channel make flexible

to select the shunt and burden resistance.

FEATURES

* Single 5V supply, low power.

ORDERING INFORMATION

* On-chip power supply monitoring.

* On-chip reference with external overdrive capability.

* Supplies average real power on the frequency outputs F1

and F2, which can drive for electromechanical counters

directly.

Device

SC7751S

SC7751

Package

SSOP-24-300-0.65

SDIP-24-300-2.54

* The high frequency output CF is intended for calibration

and supplies instantaneous real power.

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:1.2

2008.04.22

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