Datasheet

90E36A POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Function Description 20 April 2, 2013
3.7 POWER MODE
The 90E36A has four power modes. The power mode is solely
defined by the PM1 and PM0 pins.
3.7.1 NORMAL MODE (N MODE)
In Normal mode, all function blocks are active except for current
detector block. Refer to Figure-7.
Figure-7 Block Diagram in Normal Mode
Table-2 Power Mode Mapping
PM1:PM0 Value Power Mode
11 Normal (N mode)
10 Partial Measurement (M mode)
01 Detection (D mode)
00 Idle (I mode)
VDD18 Regulator
Temperature Sensor
Current Detector
ADC-V1
ADC-V2
ADC-V3
ADC-I1
ADC-I2
ADC-I3
ADC-IN
SPI Interface
DSP
Energy Metering
(Forward/Reverse
Active/Reactive/CF Generator)
Measure and Monitoring
(V/I/rms, SAG, Phase, Freq)
Signal Analyzer
ADC sample capture, THD
Control Logic
Zero
Crossing
CF Out
Power On Reset
Crystal Oscillator
DMA
Reference Voltage
OSCI OSCO
Power Mode
Configuration
Disabled
IRQ
Warn
Out