 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
90E24 Datasheet(PDF) 6 Page - ATMEL Corporation |
|
||||||||||||||||||||||||||||||
90E24 Datasheet(HTML) 6 Page - ATMEL Corporation |
|
|
6 / 57 page  6 April 2, 2013 90E21/22/23/24 DSC-7277/6 Single-Phase High-Performance Wide-Span Energy Metering IC FEATURES Metering Features • Metering features fully in compliance with the requirements of IEC62052-11, IEC62053-21 and IEC62053-23; applicable in class 1 or class 2 single-phase watt-hour meter or class 2 single- phase var-hour meter. • Accuracy of 0.1% for active energy and 0.2% for reactive energy over a dynamic range of 5000:1. • Temperature coefficient is 15 ppm/ ℃ (typical) for on-chip refer- ence voltage • Single-point calibration over a dynamic range of 5000:1 for active energy; no calibration needed for reactive energy. • Energy Meter Constant doubling at low current to save verifica- tion time. • Electrical parameters measurement: less than ±0.5% fiducial error for Vrms, Irms, mean active/ reactive/ apparent power, fre- quency, power factor and phase angle. • Forward/ reverse active/ reactive energy with independent energy registers. Active/ reactive energy can be output by pulse or read through energy registers to adapt to different applica- tions. • Programmable startup and no-load power threshold. • Dedicated ADC and different gains for L line and N line current sampling circuits. Current sampled over shunt resistor or current transformer (CT); voltage sampled over resistor divider network or potential transformer (PT). • Programmable L line and N line metering modes: anti-tampering mode (larger power), L line mode (fixed L line), L+N mode (appli- cable for single-phase three-wire system) and flexible mode (configure through register). • Programmable L line and N line power difference threshold in anti-tampering mode. Other Features • 3.3V single power supply. Operating voltage range: 2.8~3.6V. Metering accuracy guaranteed within 3.0V~3.6V. 5V compatible for digital input. • Built-in hysteresis for power-on reset. • Four-wire SPI interface or simplified three-wire SPI interface with fixed 24 cycles for all registers operation • Parameter diagnosis function and programmable interrupt output of the IRQ interrupt signal and the WarnOut signal. • Programmable voltage sag detection and zero-crossing output. • Channel input range - Voltage channel (when gain is '1'): 120 μVrms~600mVrms. - L line current channel (when gain is '24'): 5 μVrms~25mVrms. - N line current channel (when gain is '1'): 120 μVrms~600mVrms. • Programmable L line current gain: 1, 4, 8, 16, 24; Programmable N line gain: 1, 2, 4. • Support L line and N line offset compensation. • CF1 and CF2 output active and reactive energy pulses respec- tively which can be used for calibration or energy accumulation. • Crystal oscillator frequency: 8.192 MHz. On-chip 10pF capaci- tors and no need of external capacitors. • Green SSOP28 package. • Operating temperature: -40 ℃ ~ +85 ℃ . APPLICATION • The 90E21/22/23/24 series are used for active and reactive energy metering for single-phase two-wire, single-phase three- wire or anti-tampering energy meters. With the measurement function, the 90E21/22/23/24 series can also be used in power instruments which need to measure voltage, current, etc. DESCRIPTION The 90E21/22/23/24 series are high-performance wide-span energy metering chips. The ADC and DSP technology ensure the chips' long- term stability over variations in grid and ambient environmental condi- tions. 90E21/22/23/24 are all of green SSOP28 package with the same pin alignment. In this datasheet, all reactive energy metering parts are only applicable for the 90E22/24, and all N line metering and measurement parts are only applicable for the 90E23/24. Table-1 Function List Part Number Active Energy Metering ReactiveEnergy Metering N Line Metering Electrical Parameters Measurement 90E21 √√ 90E22 √√ √ 90E23 √√ √ 90E24 √√ √ √ |
Similar Part No. - 90E24_14 |
|
Similar Description - 90E24_14 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
