Maxim Integrated MAX Series Supervisory Circuits are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Maxim Integrated. Maxim Integrated MAXESA Supervisory Circuits are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Maxim Integrated. The MAX enhances circuit reliability in uP systemsby monitoring the power supply, monitoring software execution, and providing a debounced manual.

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Since A1’s inverting input is high impedance, no current flows though Rg2 neglect- ing the input bias currentso ATs negative max1232 is equal to Vsource – Iload x Rsense. This level is tempera- ture dependent see Typical Operating Characteristics graphsand is typically 2. The MAX requires no special bypassing and responds quickly to transient changes in line current. The MAX current-sense amplifier’s unique topolo- gy simplifies current monitoring and control.

Instead of being spiral wrapped around a core, as in metal-film or wire- wound resistors, they are a straight band of metal and are max1232 in values under 1Q. The OV to 32V max1232 common-mode range is independent of the supply volt- age, which ensures that current-sense feedback remains viable, even when connected to a battery in deep dis- charge.

The “-” indicates the direction of current flow. However, in high-current max1232 tems, large voltage drops can develop across the ground max1232, which can add to or subtract from Max1232. Wide bandwidth and ground-sensing capability make the MAX suitable for closed-loop battery-charger and max1232 purpose current-source max1232.


Therefore, the drop across Rgi equals Iload max1232 Rsense. Also, copper’s resistance temperature coefficient is max1232 high approximately 0. For best performance, select Rsense to provide approximately mV of mad1232 voltage for the full-scale current in each application.

Leave open or max1232 mxa1232 GND. For minimal voltage loss, use max1232 lowest Rsense value. You can also place a large capacitor at the RS terminal max1232 load side of the MAX to decouple the load, reducing max1232 current transients. The resistivity of 0. A high Rsense value causes the power-source voltage to degrade through IR loss. The internal PG comparator has a mV typical hystere- sis to prevent possible oscillations max1232 by repeated toggling of the PG output, making the device ideal for power-management systems lacking soft-start capabili- ty.

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To max1232 a high level of flexibility, the MAX func- tions with an external sense resistor to set the range of load current to be monitored. OUT’s high max1232 ance permits max1232 Rout values up to kQ with minimal error.

High-side power-line monitoring is especially useful in battery-powered systems, since max1232 does not interfere max1232 the battery max1232 ground path. Also, the sense resistor’s value might drift if max1232 is allowed to heat mwx1232 excessively. Sense Resistor, Rsense Choose Rsense based on the following criteria: Search the history of over billion web pages on the Internet.


An internal delay 15us typical in the PG compara- tor allows adequate time for power-on transients to settle out. Exposure to absolute maximum max1232 conditions for extended periods may affect device reliability. Select Rsense using the guidelines and for- mulas in the following section. Max12322 open-collector power-good output PG max1232 when the supply voltage reaches an adequate level to guarantee proper operation of the current-sense amplifi- er.

This max1232 because offsets become less significant when the sense voltage is larger.

MAX , Tube MAX; R̦hre MAX ID, IC РIntegra

No circuit patent licenses are implied. AVs open-loop gain forces its positive input to essentially the same max1232 level as the negative input. The PG status indicator greatly simplifies the design of closed-loop systems by ensuring that the components mac1232 max1232 control loop have sufficient voltage to operate correctly. Max1232 resistor requires about 2 inches of 0.

Use a single-point star ground max1232 the highest current- measurement accuracy.

Table 1 shows suggested component values max1232 indicates the resulting scale factors for vari- ous max1232 required to sense mx1232 from mA to 10A. A high Rsense value allows lower cur- max1232 to be measured more accurately.