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SY24644WMS

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Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier
Datasheet
SY24644WMS Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier Datasheet
    Part NumberSY24644WMS
    Descriptioncurrent-sense amplifier
    Vcc_min (V)2.7
    Vcc_max (V)5.5
    CM Sense Range1.8-5.5
    DM Sense Range52
    Iq (uA)18
    Gain100
    Accuracy (max)/
    Gain Error (max)±0.18%
    Offset (max)±45
    Features / Special Functionsmall size，low power，unidirectional
    PackageCSP0.76×0.76-4
    • Voltage-output, Current-sense Amplifier
    • Common-mode Range: +1.8V to +5.5V
    • Gain=100V/V
    • Low offset Voltage: ±7μV (typical)
    • Offset Drift: 0.2 µV/℃ (maximum)
    • Gain Error: 0.06% (typical)
    • Gain Drift: 1 ppm/℃ (maximum)
    • Quiescent Current: 18μA (typical)
    • Buffered Voltage Output: No Additional OP-AMP Needed
    • Compact Package: CSP0.76×0.76-4

    The SY24644 is a high-side voltage output current-sense amplifier that can sense drops across shunts at common-mode voltages from +1.8V to +5.5V with a gain of 100V/V. The small size makes it suitable for applications in cell phones, mobile accessories, notebooks, portable medical, and all battery-operated portable devices where the precision and space of current sensing are critical.

    The device operates from a single +1.8V to +5.5V power supply, drawing 18μA (typical) of supply current. The SY24644 operating temperature range is from –40°C to +125°C. 

    Supply voltage for the device is shared with the IN+ pin to reduce the pin count.

    The SY24644 is available in a 4-bump, ultra-thin CSP package. 

    Technical Documentation