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MAX34406
Quad Current-Sense Amplifier with Overcurrent Threshold Comparators
Accurate Current Measurement with Automatic Overcurrent Shutdown for Four Supply Rails
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Key Features
Applications/Uses
Parametric specs for Current Sense Amplifiers
| VSENSE_FS (mV) (recomm.) | 5 10 20 40 |
| VOS @25°C (µV) (max) | 600 |
| Output Format | Voltage |
| CMVR (V) (min) | 2 |
| CMVR (V) (max) | 28 |
| VCC (V) (min) | 2.7 |
| VCC (V) (max) | 5.5 |
| ICC (µA) (typ) | 100 |
| Bi-Dir. Curr. Sense | No |
| Gain | 100 V/V 200 V/V 25 V/V 50 V/V |
| Gain Accuracy @25°C (%) (max) | 0.6 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/24 |
| Budgetary Price (See Notes) | 1.98 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Quad Current-Sense Amplifier with Overcurrent Threshold Comparators | Feb 09, 2012 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Current Sense Amplifiers
| VSENSE_FS (mV) (recomm.) | 5 10 20 40 |
| VOS @25°C (µV) (max) | 600 |
| Output Format | Voltage |
| CMVR (V) (min) | 2 |
| CMVR (V) (max) | 28 |
| VCC (V) (min) | 2.7 |
| VCC (V) (max) | 5.5 |
| ICC (µA) (typ) | 100 |
| Bi-Dir. Curr. Sense | No |
| Gain | 100 V/V 200 V/V 25 V/V 50 V/V |
| Gain Accuracy @25°C (%) (max) | 0.6 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/24 |
| Budgetary Price (See Notes) | 1.98 |
Key Features
- Four Precision Current-Sense Amplifiers
- Fixed Gains of 25V/V, 50V/V, 100V/V, and 200V/V
- Less Than ±600µV of Input Offset
- Less Than ±0.6% of Gain Error (T/F/H) or ±0.8% of Gain Error (W)
- Wide 2.0V to 28V Common Mode Range
- Analog Voltage Outputs for Each Amplifier
- Independent Overcurrent Comparators with Fixed 1.0V Threshold
- Low Power Consumption
- -40°C to +85°C Temperature Range
- Small 24-Pin TQFN (4mm x 4mm) Package
Applications/Uses
- Base Stations
- Industrial Controls
- Network Switches/Routers
- Servers
- Smart Grid Network Systems
Description
The MAX34406 is a quad, high-side, unidirectional, current-sense amplifier that offers precision accuracy. It provides analog outputs for each of the four amplifiers that can be routed to an external ADC, and contains four overcurrent comparators with a fixed 1.0V threshold. All four comparators are logically ORed, and the result can be delayed/filtered with an external capacitor before it is fed to a latched common shutdown open-drain output pin.
Simplified Block Diagram
Technical Docs
| Data Sheet | Quad Current-Sense Amplifier with Overcurrent Threshold Comparators | Feb 09, 2012 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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