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SC212KSIT Datasheet Preview

SC212KSIT Datasheet

High Voltage Isolation Current Sensor

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SC212KSIT
120 kHz Bandwidth, High Voltage Isolation
Current Sensor with Integrated Overcurrent Detection
Features and Benefits
1. Industry-leading noise performance with greatly improved bandwidth through proprietary
amplifier and filter design techniques
2. Small footprint package suitable for space-constrained applications
3. 1 mΩ primary conductor resistance for low power loss
4. High isolation voltage, suitable for line-powered applications
5. User-adjustable Overcurrent Fault level
6. Overcurrent Fault signal typically responds to an overcurrent condition in < 2 μs
7. Integrated shield virtually eliminates capacitive coupling from current conductor to die due to
high dV/dt voltage transients
8. Filter pin capacitor improves resolution in low bandwidth applications
9. 3 to 5.5 V, single supply operation
10. Factory trimmed sensitivity and quiescent output voltage
11. Chopper stabilization results in extremely stable quiescent output voltage
12. Ratiometric output from supply voltage
Package: 16-pin SOIC Hall Effect IC Package (suffix SI)
Typical Application Circuit
1/13




SEC

SC212KSIT Datasheet Preview

SC212KSIT Datasheet

High Voltage Isolation Current Sensor

No Preview Available !

SC212KSIT
120 kHz Bandwidth, High Voltage Isolation
Current Sensor with Integrated Overcurrent Detection
General Description
The SEC™ SC212KSIT current sensor provides economical and precise means for current sensing
applications in industrial, commercial, and communications systems. The device is offered in a small
footprint surface mount package that allows easy implementation in customer applications.
The SC212KSIT consists of a precision linear Hall sensor integrated circuit with a copper conduction
path located near the surface of the silicon die. Applied current flows through the copper conduction
path, and the analog output voltage from the Hall sensor linearly tracks the magnetic field generated
by the applied current. The accuracy of the SC212KSIT is maximized with this patented packaging
configuration because the Hall element is situated in extremely close proximity to the current to be
measured.
High level immunity to current conductor dV/dt and stray electric fields, offered by SEC proprietary
integrated shield technology, results in low ripple on the output and low offset drift in high-side, high
voltage applications.
The voltage on the Overcurrent Input (VOC pin) allows customers to define an overcurrent fault
threshold for the device. When the current flowing through the copper conduction path (between the
IP+ and IP– pins) exceeds this threshold, the open drain Overcurrent Fault pin will transition to a logic
low state. Factory programming of the linear Hall sensor inside of the SC212KSIT results in
exceptional accuracy in both analog and digital output signals.
The internal resistance of the copper path used for current sensing is typically 1 mΩ, for low power
loss. Also, the current conduction path is electrically isolated from the low voltage sensor inputs and
outputs. This allows the SC212KSIT family of sensors to be used in applications requiring electrical
isolation, without the use of opto-isolators or other costly isolation techniques. The SC212KSIT is
provided in a small, surface mount SOIC16 package. The lead frame is plated with 100% matte tin,
which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally,
the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt
from RoHS. The device is fully calibrated prior to shipment from the factory.
Applications
1. Motor control and protection
2. Load management and overcurrent detection
3. Power conversion and battery monitoring / UPS systems
General Package Inform
Part Number
IP(A)
SC212KSIT
±25
Sens (typ)
Latched
at V= 5 V (mV/A) Fault
56 Yes
TA(°C)
–40 to 125
Packing
Tape and Reel, 1000
pieces per reel
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Part Number SC212KSIT
Description High Voltage Isolation Current Sensor
Maker SEC
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