LMP8603
-22 to 60V, bi-directional current sense amplifier w/ in-line filter capability
LMP8603
- Gain = 20x for LMP8601 and LMP8601-Q1
- Gain = 50x for LMP8602 and LMP8602-Q1
- Gain = 100x for LMP8603 and LMP8603-Q1
- TCVOS: 10 µV/°C Maximum
- CMRR: 90-dB Minimum
- Input Offset Voltage: 1-mV Maximum
- CMVR at VS = 3.3 V: –4 V to 27 V
- CMVR at VS = 5 V: –22 V to 60 V
- Single-Supply Bidirectional Operation
- All Minimum and Maximum Limits 100% Tested
- Q1 Devices Qualified for Automotive Applications
- Q1 Devices ACE-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device Temperature Grade 0: –40°C to 150°C (LMP8601EDRQ1 Only)
- Device HBM ESD Classification Level 2
(3A on inputs) - Device CDM ESD Classification Level C6
- Device MM ESD Classification Level M2
The LMP8601, LMP8602, LMP8603 (LMP860x) and LMP8601-Q1, LMP8602-Q1, LMP8603-Q1 (LMP860x-Q1) devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22 V to +60 V when operating from a single 5-V supply, or –4 V to +27 V with a 3.3-V supply. The LMP860x and LMP860x-Q1 are ideal parts for unidirectional and bidirectional current sensing applications.
These devices have a precise gain of 20x (LPM8601, LPM8601-Q1), 50x (LPM8602, LPM8602-Q1), and 100x (LPM8603, LPM8603-Q1), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601, LMP8601-Q1), 5x (LMP8602, LMP8602-Q1), or 10x (LMP8603, LMP8603-Q1). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.
The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.
The LMP860x-Q1 devices incorporate enhanced manufacturing and support processes for the automotive market and are compliant with the AEC-Q100 standard.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | LMP860x, LMP860x-Q1 60-V, Bidirectional, Low- or High-Side, Voltage-Output, Current-Sensing Amplifiers datasheet (Rev. H) | PDF | HTML | 27 Apr 2016 |
Application brief | Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) | PDF | HTML | 07 Apr 2023 | |
Application brief | Switching Power Supply Current Measurements (Rev. E) | PDF | HTML | 07 Apr 2023 | |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 25 Jan 2022 | |
Application brief | Benefits of Intergated Low Inductive Shunt for PWM Applications | 17 Jun 2017 | ||
Application brief | Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers | 28 Feb 2017 | ||
EVM User's guide | AN-1923 Current Sense Demo Board (SOIC) User's Guide (Rev. A) | 26 Apr 2013 | ||
EVM User's guide | AN-1958 LMP860X SOIC Eval Board User's Guide (Rev. C) | 26 Apr 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit
CIRCUIT060037 — Precision over-current latch circuit
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
VSSOP (DGK) | 8 | Ultra Librarian |
Ordering & quality
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- REACH
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- Lead finish/Ball material
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- Ongoing reliability monitoring
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Support & training
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