The LMP8646 is a precision current limiter used to improve the current limit accuracy of any switching or linear regulator with an available feedback node.
The LMP8646 accepts input signals with a common-mode voltage ranging from –2 V to 76 V. It has a variable gain which is used to adjust the sense current. The gain is configured with a single external resistor, RG, providing a high level of flexibility and accuracy up to 2%. The adjustable bandwidth, which allows the device to be used with a variety of applications, is configurable with a single external capacitor in parallel with RG. In addition, the output is buffered in order to provide a low output impedance.
The LMP8646 is an ideal choice for industrial, automotive, telecommunications, and consumer applications where circuit protection and improved precision systems are required. The LMP8646 is available in a 6-pin SOT package and can operate at temperature range of −40°C to 125°C.
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|Part number||Order||Common mode voltage (Max) (V)||Common mode voltage (Min) (V)||Input offset (+/-) (Max) (uV)||Input offset drift (+/-) (Typ) (uV/C)||Gain (V/V)||Gain error (%)||Gain error drift (+/-) (Max) (ppm/°C)||CMRR (Min) (dB)||Bandwidth (kHz)||Supply voltage (Max) (V)||Supply voltage (Min) (V)||Iq (Max) (mA)||Number of channels (#)||Comparators (#)||Features||Rating||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)|
||76||-2||1000||4||Adjustable||2||140||55||35||12||2.7||3.11||1||0||Low-side Capable||Catalog||-40 to 125||SOT-23-THIN | 6||6SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 6)|