STPM11 datasheet(1/43 Pages) STMICROELECTRONICS

部件名	STPM11

功能描述	Single phase energy metering IC with pulsed output and digital calibration

PDF	43 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 43 page

March 2007

Rev. 3

1/43

43

STPM11/12/13/14

Single phase energy metering IC with pulsed output

and digital calibration

Feature summary

■ Ripple free active energy pulsed output

■ Direct stepper counter drivers

■ Shunt, current transformer, Rogowsky coil

sensors

■ Live and neutral monitoring (STPM13/14)

■ Easy and fast digital calibration at only one

load point

■ No-load, negative power and tamper indicators

■ Integrated linear VREGS

■ RC (STPM11/13) or crystal oscillator

(STPM12/14)

■ Support 50÷60 HZ - IEC62052-11, IEC62053-

2X specification

■ Less than 0.1% error

Description

The STPM1x family is designed for effective

measurement of active energy in a power line

system using a Rogowski Coil, Current

Transformer and Shunt sensors. This device is

specifically designed to provide all the necessary

features to implement a single phase energy

meter without any other active component. The

STPM1x device family consists, essentially, of two

parts: the analog part and the digital part. The

former, is composed of a preamplifier and first

order

∑∆ A/D converter blocks, band gap

voltage reference, low drop voltage regulator. The

digital part is composed of a system control,

oscillator, hard wired DSP and interface for

calibration and configuration.

The calibration and configuration are done by

OTP cells, that can be programmed through a

serial interface. The configured bits are used for

testing, configuration and calibration purposes.

From two

∑∆ output signals coming from the

analog section, a DSP unit computes the amount

of consumed active energy. The active energy is

available as a pulse frequency output and directly

driven by a stepper counter. In the STPM1X an

output signal with pulse frequency proportional to

energy is generated. This signal is used in the

calibration phase of the energy meter application

allowing a very easy approach. When the device

is fully configured and calibrated, a dedicated bit

of OTP block can be written permanently in order

to prevent accidental entry into test mode or

changing any configuration bit.

TSSOP20

www.st.com

Order code

Part number

Package

Packaging

STPM11ATR

TSSOP20 (Tape & reel)

2500 parts per reel

STPM12ATR

TSSOP20 (Tape & reel)

2500 parts per reel

STPM13ATR

TSSOP20 (Tape & reel)

2500 parts per reel

STPM14ATR

TSSOP20 (Tape & reel)

2500 parts per reel

类似零件编号 - STPM11

制造商	部件名	数据表	功能描述
STMicroelectronics	STPM11	1Mb / 45P	Single phase energy metering IC with pulsed output and digital calibration 21-Jan-2008
	STPM11	1Mb / 46P	Single phase energy metering IC with pulsed output and digital calibration 09-Jun-2011
	STPM11ATR	1Mb / 45P	Single phase energy metering IC with pulsed output and digital calibration 21-Jan-2008
	STPM11ATR	1Mb / 46P	Single phase energy metering IC with pulsed output and digital calibration 09-Jun-2011
	STPM11	1Mb / 45P	Single phase energy metering IC with pulsed output and digital calibration 21-Jan-2008

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