
Micrel
General Description
The MIC2785 is a micropower voltage monitor that provides under-voltage monitoring and manual reset
capability in a tiny 1.2mm x 1.2mm MLF® package. The MIC2785 provides a monitored voltage input (VIN) separate from the supply input (VDD). This insures that the reset (/RST) output maintains a valid output state when the voltage being monitored ramps up or down. The device also includes a manual reset input (/MR). The /RST output is an active low push-pull output.
FEATUREs
• No external components
• Monitors input voltage for under-voltage condition
• Separate inputs for supply (VDD) and monitor (VIN)
• +1.5% VIN threshold voltage accuracy
• Valid /RST state with VIN down to 0.0V
• Valid /RST state with VDD down to 1.20V
• Factory-programmed 1.62V reference
• Manual reset input (/MR)
• Active low RESET (/RST) output
• Ultra-low input current – 5µA total (VIN and VDD)
• Rejects brief input transients
• -25°C to 85°C operating temperature range
• RoHS lead-free compliant
• Available in tiny 6-pin 1.2mm x 1.2mm Thin MLF® package
APPLICATIONs
• Mobile phones
• PDAs
• GPS receivers