MP8110DK-LF-Z - 40V High-Side Current Sense Amp | MPS
MPN: MP8110DK-LF-Z ✓ Hoạt độngMP8110DK-LF-Z Tóm tắt
A high-side current-sense amplifier is an instrumentation amplifier that measures the small voltage drop across a sense resistor placed in series with a power path. The MP8110 belongs to the current-sense amplifier category, which is part of the broader analog and mixed-signal IC hierarchy. Its high-side placement keeps the monitored load near ground potential, making it useful in systems where the current-carrying conductor is difficult to bring to a low-voltage analog input.
The verified manufacturer information identifies a 2.5 V to 40 V operating input range, a typical 17 µA supply consumption, one amplifier circuit, and a nominal transfer relationship in which 1 V of output represents 5 A of load current. This 0.2 V/A relationship provides a direct way to interpret the output voltage during current measurements. The 40 V capability supports measurement of high-voltage rails without requiring the amplifier to be placed directly across the full supply voltage.
The MP8110DK-LF-Z is described by the manufacturer as a low-cost, precision, high-side current-sense amplifier. Its proportional analog output can be connected to an ADC, comparator, controller, or monitoring circuit so that the host system can measure load current or react when a programmed threshold is exceeded. The manufacturer also documents the EV8110DS-00A evaluation board for evaluating the MP8110 in a complete application circuit.
Typical uses include power-supply load monitoring, battery-powered systems, industrial controllers, motor-control circuits, and general 40 V power rails. Because the output scales at 0.2 V per ampere, a 5 A load produces a 1 V output according to the manufacturer product-page information. Designers should verify the required sense-resistor value, output range, error limits, and operating conditions against the complete manufacturer datasheet before production use.
A primary design consideration is Kelvin routing of the sense-resistor connections. The amplifier must detect the voltage drop across the sense resistor without picking up voltage drops in its own supply and ground traces. Short, symmetric connections, suitable resistor placement, and a clean return path help preserve measurement accuracy. The analog output should also remain within the input range of the receiving ADC or controller.
This page consolidates the verified manufacturer and distributor information for MP8110DK-LF-Z, including the known electrical characteristics, package information, sourcing links, and practical application guidance. It also separates documented values from parameters that still require confirmation from the full datasheet, helping engineers make faster and more defensible component-selection decisions.
Bộ thay thế dễ dàng lắp đặt cho MP8110DK-LF-Z — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MP8110DK-LF-Z (cùng hình factor và footprint) — khác nhau ở RoHS Status.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếMP8110DK-LF-Z Tỷ lệ tối đa & tính chất điện
| Device Type | Precision high-side current-sense amplifier |
| Circuit Count | 1 circuit |
| Phạm vi điện áp đầu vào | 2.5 V to 40 V |
| Điện áp cung cấp | 2.5 V to 40 V |
| Nominal Output at 5 A Load | 1 V |
| Nominal Output Sensitivity | 0.2 V/A |
| Typical Supply Consumption | 17 µA |
| Hộp | 8-MSOP |
| Số chân | 8 pins |
| Kiểu lắp đặt | Surface mount |
| Lead-Free Status | Compliant |
| Trạng thái RoHS | RoHS3 compliant |
Hướng dẫn cấu hình chân MP8110DK-LF-Z 8-msop
Cấu hình chân cho MP8110DK-LF-Z (8-msop gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho MP8110DK-LF-Z.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MP8110DK-LF-Z phù hợp cho 6 Áp dụngs: 40 V Power-Supply Load Monitoring, Battery-Powered System Current Sensing, Industrial Controller Current Feedback, Motor and Actuator Supply Monitoring, Over-Current Threshold Detection, High-Voltage DC Rail Protection.
40 V Power-Supply Load Monitoring
The MP8110DK-LF-Z suits high-side load monitoring in a 2.5 V to 40 V power rail because the documented input range accommodates the monitored bus. A series sense resistor develops a voltage proportional to load current, and the amplifier converts that differential drop into a 1 V output at 5 A. The resulting analog signal can feed an ADC, comparator, or controller for load reporting or threshold protection. Designers should use Kelvin-routed connections to the sense resistor and confirm that the output remains within the receiving circuit’s input limits.
Được đề xuất
Battery-Powered System Current Sensing
The MP8110DK-LF-Z can monitor current in a battery-powered load path while keeping the sensing element on the high side. Its 17 µA typical supply consumption is relevant when conserving system energy, and the documented 2.5 V to 40 V operating range supports multiple battery and industrial supply architectures. A 5 A condition produces a 1 V output according to the manufacturer, giving the host controller a straightforward proportional signal for current tracking, energy accounting, or an over-current indication.
Được đề xuất
Industrial Controller Current Feedback
The MP8110DK-LF-Z provides an analog current-feedback signal for industrial controllers monitoring a high-side supply. Its documented 40 V input range supports control and automation systems that operate above conventional low-voltage logic levels, while the 0.2 V/A nominal sensitivity translates current into a controller-readable voltage. The sensing path requires careful layout: the sense-resistor Kelvin connections should be short and symmetric, and the analog output should be checked for adequate range and settling behavior in the selected control loop.
Được đề xuất
Motor and Actuator Supply Monitoring
The MP8110DK-LF-Z can be used to monitor current drawn by a motor or actuator from a high-side supply without placing the sensing amplifier at ground potential. At a 5 A load, the documented output is 1 V, allowing an MCU or analog input to estimate operating current and detect abnormal loading. Because motor systems can produce transients, the engineer must verify transient limits, common-mode behavior, and the sense-resistor pulse rating from the complete datasheet before finalizing the circuit.
Được đề xuất
Over-Current Threshold Detection
The MP8110DK-LF-Z can drive a comparator or controller input for over-current detection in a high-side power path. Its proportional output reaches 1 V at the documented 5 A reference condition, making it possible to select a threshold and protective behavior around a known operating current. The complete implementation must include the correct sense resistor, verify amplifier accuracy at the threshold, and account for output limits, temperature effects, and any transient behavior before defining the shutdown policy.
Được đề xuất
High-Voltage DC Rail Protection
The MP8110DK-LF-Z is applicable to monitoring a high-voltage DC rail when the system operates within the documented 2.5 V to 40 V range. The amplifier converts the sense-resistor drop into a proportional analog voltage that a protection controller can compare against an operating limit. High-side placement simplifies grounding of the monitored equipment, but robust design still requires examining the sense resistor’s voltage rating, pulse capability, power dissipation, and the amplifier’s detailed operating and transient limits.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MP8110DK-LF-Z — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này |
|---|---|
| Package | 8-MSOP |
| Brand | Monolithic Power Systems Inc. |
| Device Type | Precision high-side current-sense amplifier |
| Input Voltage Range | 2.5 V to 40 V |
| Supply Voltage | 2.5 V to 40 V |
| Nominal Output at 5 A Load | 1 V |
| Nominal Output Sensitivity | 0.2 V/A |
| Typical Supply Consumption | 17 µA |
| Circuit Count | 1 circuit |
| RoHS Status | RoHS3 compliant |
Bảo phân biệt quan trọng
- Documented 40 V high-side operating capability (vsNo verified drop-in alternative was identified)
- Direct proportional current output (vsNo verified drop-in alternative was identified)
- Low typical supply consumption (vsNo verified drop-in alternative was identified)
Ghi chú thiết kế
Route the two sense-resistor connections as a differential, Kelvin pair directly from the resistor pads to the amplifier. Keep these traces short, matched, and away from switching nodes and high-current return paths. The amplifier detects only the voltage across the sense resistor, so voltage drops in copper traces would otherwise appear as measurement error. Place the sense resistor close enough to the monitored conductor to minimize unwanted loop area.
Do not assume that a generic 8-MSOP current-sense amplifier is pin-compatible with MP8110DK-LF-Z. The supplied snippets establish the package size but do not expose the individual pin assignments. Verify the manufacturer pin diagram, input polarity, supply pins, output pin, and exposed or no-connect positions before substituting any device. A footprint match alone does not establish functional compatibility.
Select the sense resistor from both the required measurement range and its own dissipation and pulse ratings. The manufacturer establishes 1 V output at 5 A load, but the full accuracy, common-mode range, and output-swing limits must be confirmed from the complete datasheet. Ensure the amplifier supply remains within 2.5 V to 40 V and that the output cannot exceed the input range of the receiving ADC or controller.
Thông tin tuân thủ
A verified distributor source identifies MP8110DK-LF-Z as RoHS3 compliant and lead-free. No verified REACH, AEC-Q100, halogen-free, or conflict-minerals information was supplied.
