MAX4210

19-3285; Rev 0; 6/04 KITS ATION EVALU ABLE AVAIL High-Side Power and Current Monitors General Description Features ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Real-Time Current and Power Monitoring ±1.5% (max) Current-Sense Accuracy ±1.5% (max) Power-Sense Accuracy Two Uncommitted Comparators (MAX4211) 1.21V Reference Output (MAX4211) Three Current/Power Gain Options 100mV/150mV Current-Sense Full-Scale Voltage +4V to +28V Input Source Voltage Range +2.7V to +5.5V Power-Supply Voltage Range Low Supply Current: 380µA (MAX4210) 220kHz Bandwidth Small 6-Pin TDFN and 8-Pin µMAX Packages (MAX4210) MAX4210/MAX4211 The MAX4210/MAX4211 low-cost, low-power, high-side power/current monitors provide an analog output voltage proportional to the power consumed by a load by multiplying load current and source voltage. The MAX4210/MAX4211 measure load current by using a high-side current-sense amplifier, making them especially useful in battery-powered systems by not interfering with the ground path of the load. The MAX4210 is a small, simple 6-pin power monitor intended for limited board space applications. The MAX4210A/B/C integrate an internal 25:1 resistor-divider network to reduce component count. The MAX4210D/E/F use an external resistor-divider network for greater design flexibility. The MAX4211 is a full-featured current and power monitor. The device combines a high-side current-sense amplifier, 1.21V bandgap reference, and two comparators with open-drain outputs to make detector circuits for overp...