High- and Low-Side, Bidirectional, Zero-Drift, High-accuracy Current/Power Monitor with Accumulator and Programmable Alert
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- Parameters
- Features
- Description
| Part number |
SY24655QDQ |
| Resolution (bit) |
16 |
| Common mode voltage (max)(V) |
36 |
| Common mode voltage (min)(V) |
0 |
| Vcc max (V) |
5.5 |
| Vcc min (V) |
2.7 |
| Vshunt Input offset (±)(max)(μV) |
10 |
| Vbus Input offset (±)(max)(mV) |
7.5 |
| Vshunt Input offset drift (±)(typ)(μV/℃) |
0.02 |
| Vbus Input offset drift (±)(typ)(μV/℃) |
10 |
| Shunt voltage range(mV) |
±81.92 |
| Bus voltage range(V) |
0-36 |
| Vshunt
Gain error (max)(%) |
0.15 |
| Vbus Gain error (max)(%) |
0.15 |
| Vshunt Gain error drift (±)(max)(ppm/℃) |
50 |
| Vbus Gain error drift (±)(max)(ppm/℃) |
50 |
| CMRR (min)(dB) |
130 |
| Channel(#) |
1 |
| Power measurement accuracy(%) |
0.30 |
| Iq (max) (μA) |
370 |
| Operating temperature range(°C) |
-40 to 125 |
| Package |
QFN3×3-16 |
| Pin count |
10 |
- Senses Bus Voltages from 0V to 36V
- High-Side or Low-Side Sensing
- Embedded 16bit ADC
- Reports Current, Voltage, and Power
- Integrated Power Accumulator for Average Power Monitoring
- High Accuracy:
- -- 0.25% Gain Error (Max)
- -- ±10μV Shunt Offset (Max)
- Low IB: 1nA (Max)
- Configurable Averaging Options
- Abundant Alert Sources Setting
- 1.8V I2C, SMBus Compliant Interface
- 16 Programmable Addresses
- Operates from 2.7V to 5.5V Power Supply
- Industrial Temperature: –40°C~125°C
- Package: QFN3×3-16
The SY24655 uses a 16-bit ADC (Analog to Digital Converter) along with a dedicated analog front-end to enable precise monitoring of current, voltage, and power of a separate rail. 16 addresses, configurable using two dedicated pins, enable multiple devices connected with application processor on the same I2C or SMBUS-compatible interface.
An integrated power accumulator can be used for average power calculations. Programmable calibration value, conversion times, and averaging when combined with an internal multiplier enable direct readouts of current in amperes and power in watts.
A flexible interrupt generation scheme enables alerting the host when the voltage, current or power levels on the monitored rail are below or above the configured thresholds.
The SY24655 can be used to monitor bus voltages that can vary from 0V to 36V, independent of the supply voltage.
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SY24655QDQ is intended for evaluating High- and Low-Side, Bidirectional, Zero-Drift, High-accuracy Current/Power Monitor with Accumulator and Programmable Alert.
