EMC1701-1 _ BDTIC a Leading Distributor in China

EMC1701-1

The EMC1701 is a combination high-side current sensing device with precision temperature measurement. It measures the voltage developed across an external sense resistor to represent the high-side current of a battery or voltage regulator. The EMC1701 also measures the bus voltage and uses these measured values to present a proportional power calculation. The EMC1701 contains additional bi-directional peak detection circuitry to flag instantaneous current spikes with programmable time duration and magnitude threshold. Finally, the EMC1701 includes an internal diode channel for ambient temperature measurement.

Both current sensing and temperature monitoring include two tiers of protection: one that can be masked and causes the ALERT# pin to be asserted, and the other that cannot be masked and causes the THERM# pin to be asserted.

Features

High-side current sensor Bi-directional current measurement Measures bus voltage 1% current measurement accuracy Integrated over 82ms to 2.6sec with 11-bit resolution 3V to 24V voltage bus voltage range
Bi-directional current measurement
Measures bus voltage
1% current measurement accuracy
Integrated over 82ms to 2.6sec with 11-bit resolution
3V to 24V voltage bus voltage range
Calculates proportional power
Independent hardware set instantaneous current peak detector (EMC1701-1 only) Software controls to program time duration and magnitude threshold
Software controls to program time duration and magnitude threshold
Power supply options Bus or separately powered for low voltage operation
Bus or separately powered for low voltage operation
Wide temperature operating range: -40°C to +85°C
Internal temperature monitor ±1°C accuracy (-5°C < TA < 85°C)
±1°C accuracy (-5°C < TA < 85°C)
ALERT# and THERM# outputs for temperature, voltage, and out-of-current limit reporting
I2C/SMBus 2.0 interface Pin-selectable SMBus Address Block Read and Write
Pin-selectable SMBus Address
Block Read and Write
Available in a 12-pin 4mm x 4mm QFN RoHS Compliant Package (EMC1701-1)
Available in a 10-pin MSOP RoHS Compliant Package (EMC1701-2)
Notebook and Desktop Computers
Industrial
Power Management Systems
Embedded Applications

Parameter

Parameter Name Value	Value
# Current Sensors 1	1
Description Current/DC Power Sensor with Temperature Monitoring	Current/DC Power Sensor with Temperature Monitoring
Full Scale Range (mV) 10, 20, 40, 80	10, 20, 40, 80
Current Measuerment Max Accr (%) ±1	±1
Effective Sampling Interval min to max (msec) 2.5 to 2600	2.5 to 2600
Bus Voltage Range (V) +3 to +24	+3 to +24
# Temperature Monitors (ambient, remote) 1, 0	1, 0
Temperature Accuracy Typ / Max (°C) ±0.25 / ±1.0	±0.25 / ±1.0
Alert/Therm 2	2
Peak Detection Hardware	Hardware
Interface SMBus/I2C	SMBus/I2C
Address Select yes	yes

Documents

EMC1701 High-Side Current-Sense and Internal 1??C Temperature Monitor Data Sheet	Data Sheets	09/27/2010	816KB
AN18.15 - PCB Design Guidelines for QFN and DQFN Packages	AppNote	10/16/2014	205KB
EMC1701 High-Side Current-Sense and Internal 1??C Temperature Monitor Data Brief	Product Briefs	09/27/2010	298KB
EMC1701 Reference Design Part Library, Microsoft Object Library File	Schematics	09/28/2009	11KB
EMC1701 Reference Design Schematic, PDF	Schematics	10/02/2009	20KB

Similar Devices

Product	Description	Full Scale Range (mV)	Bus Voltage Range (V)	Price5K
EMC1701-1	Current/DC Power Sensor with Temperature Monitoring	10, 20, 40, 80	+3 to +24
EMC1701-2	Current/DC Power Sensor with Temperature Monitoring	10, 20, 40, 80	+3 to +24	$1.12
EMC1702-1	Current/DC Power Sensor with Temperature Monitoring	10, 20, 40, 80	+3 to +24	$1.12
EMC1704-1	Current/DC Power Sensor with Temperature Monitoring	10, 20, 40, 80	+3 to +24
EMC1704-2	Current/DC Power Sensor with Temperature Monitoring	10, 20, 40, 80	+3 to +24	$2.02
PAC1710	Current/DC Power Sensor	10, 20, 40, 80	0 to +40	$0.67
PAC1720	Dual Current/DC Power Sensor	10, 20, 40, 80	0 to +40	$1.18
PAC1921	Current/DC Power Sensor	100	0 to +32	$1.18