MAX810 Datasheet | NXP Semiconductors

DESCRIPTION The MAX809/MAX810 are single function microprocessor resets used to monitor supply voltages in microprocessor and other logic systems. They provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions. The reset signal is asserted when the supply voltage drops below the preset threshold, and the signal is released a set time after the supply voltage has risen above the preset threshold. The MAX809 has an active-LOW reset output while the MAX810 has an active-HIGH reset output. The low supply current of typically 17 µA makes the MAX809/MAX810 ideal for use in portable, battery operated equipment. They are available in the 3-pin SOT23 and SC70 packages. FEATURES - Monitors 5.0 V, 3.3 V and 3 V supplies - 140 ms min. reset delay time: - Active-LOW RESET output (MAX809) - Active-HIGH RESET output (MAX810) - Power supply transient immunity - Guaranteed reset valid for 1.1 V - Available in small SOT23 and SC70 3-pin packages - No external ponents needed - Specified over full temperature range - 40 °C to +105 °C APPLICATIONS - Embedded controllers - Battery operated systems - Wireless munication systems - PDAs and handheld equipment SIMPLIFIED SYSTEM DIAGRAMS VCC VCC VCC VCC VCC VCC MAX809 RESET GND MICROPROCESSOR RESET GND MICROPROCESSOR RESET INPUT GND RESET INPUT GND SL01642 SL01643 Figure 1. MAX809 simplified system diagram. Figure 2. MAX810 simplified system diagram. 2003 Aug 08 Philips Semiconductors Product data 3-pin microprocessor resets MAX809/MAX810 ORDERING INFORMATION TYPE NUMBER MAX809x D MAX810x D MAX809x W MAX810x W PACKAGE NAME SOT23-3 SOT23-3 SC70-3 SC70-3 DESCRIPTION plastic small outline package; 3 leads (see dimensional drawing) plastic small outline package; 3 leads (see dimensional drawing) plastic small outline package; 3 leads; body width 1.15 mm plastic small outline package; 3 leads; body width 1.15 mm TEMPERATURE RANGE - 40 to +105...