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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LMP8646 | SOT (6) | 2.90 mm × 1.60 mm |
Changes from A Revision (March 2013) to B Revision
Changes from * Revision (March 2013) to A Revision
PIN | DESCRIPTION | |
---|---|---|
NAME | NO. | |
VOUT | 1 | Single-Ended Output Voltage |
V- | 2 | Negative Supply Voltage. This pin should be connected to ground. |
+IN | 3 | Positive Input |
-IN | 4 | Negative Input |
RG | 5 | External Gain Resistor. An external capacitance (CG) may be added in parallel with RG to limit the bandwidth. |
V+ | 6 | Positive Supply Voltage |