MAX4073F, MAX4073H, MAX4073T：Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier
The MAX4073 low-cost, high-side current-sense amplifier features a voltage output that eliminates the need for gain-setting resistors making it ideal for cell phones, notebook computers, PDAs, and other systems where current monitoring is crucial. High-side current monitoring does not interfere with the ground path of the battery charger making the MAX4073 particularly useful in battery-powered systems. The input common-mode range of +2V to +28V is independent of the supply voltage. The MAX4073's wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops. The combination of three gain versions and a selectable external-sense resistor sets the full-scale current reading. The MAX4073 offers a high level of integration, resulting in a simple and compact current-sense solution. The MAX4073 operates from a +3V to +28V single supply and draws only 0.5mA of supply current. This device is specified over the automotive operating temperature range (-40°C to +125°C) and is available in a space-saving 5-pin SC70 package (half the size of the SOT23). For a similar device in a 6-pin SOT23 with a wider common-mode voltage range (0 to +28V), see the MAX4173 data sheet.
Key Features
| MAX4073F, MAX4073H, MAX4073T: Typical Operating Circuit |
DataSheet
| title | Download file |
|---|---|
| MAX4073-MAX4073T Data Sheet | MAX4073-MAX4073T.pdf |
Parametrics
| Part Number | Output Format | CMVR (V) | CMVR (V) | VCC (V) | VCC (V) | ICC (µA) | Bi-Dir. Curr. Sense | VSENSE_FS (mV) | Gain | Gain Accuracy @25°C (%) | BW (kHz) | Comp- arators | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | typ | recomm. | max | @ -3dB | See Notes | |||||||
| MAX4073 | Voltage | 2 | 28 | 3 | 28 | 500 | No | 100 | 20 V/V 50 V/V 100 V/V | 4.5 | 1600 1700 1800 | 0 | -40 to +125 | SC-70/5 SOT/6 | $0.88 @1k |
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX4073FAUT+ | Active | SOT,;6 pin;9 mm² | -40°C to +125°C | Lead Free | |
| MAX4073FAUT+T | Active | SOT,;6 pin;9 mm² | -40°C to +125°C | Lead Free | |
| MAX4073FAUT-T | No Longer Available | MAX4073FAUT+T | SOT,;6 pin;9 mm² | -40°C to +125°C | No |
| MAX4073FAXK | No Longer Available | MAX4073FAXK+ | SC-70,;5 pin;5.3 mm² | -40°C to +125°C | No |
| MAX4073FAXK+ | Active | SC-70,;5 pin;5.3 mm² | -40°C to +125°C | Lead Free | |
| MAX4073FAXK+T | Active | SC-70,;5 pin;5.3 mm² | -40°C to +125°C | Lead Free | |
| MAX4073FAXK-T | No Longer Available | MAX4073FAXK+T | SC-70,;5 pin;5.3 mm² | -40°C to +125°C | No |
- MAX4073-MAX4073T.pdf MAX4073
- MAX4073F.pdf MAX4073
- MAX4073T.pdf MAX4073
- MAX4073H.pdf MAX4073
- MAX4073-MAX4073T.pdf MAX4073T
