SMM150

SMM150 Preliminary Information 1 (See Last Page) Single-Channel Supply Voltage Marginer/Monitor FEATURES Capable of margining supplies with trim inputs using either positive or negative trim pin control Wide Margin range from 0.3V to VDD using internal reference 10-bit ADC readout of supply voltage over I2C bus Margining Controlled Via: I2C Command www.DataSheet4U.com Input Pins (MUP, MDN) Two programmable general purpose sensor inputs (COMP1/2) – UV/OV with FAULT Output Programmable glitch filter (COMP1/2) Programmable internal VREF, 0.5V or 1.25V Operates from 2.7V to 5.5V supply General Purpose 256-Byte EEPROM with Write Protect I2C 2-wire serial bus for programming configuration and monitoring status 28 lead QFN 20 ball Ultra CSPTM (Chip-Scale) package INTRODUCTION The SMM150 is a highly accurate power supply voltage supervisor and environmental monitor with provisions for voltage margining of the monitored supply. The part includes an internal voltage reference to accurately monitor and margin the supply to within ±1%. The SMM150 has the capability to margin over a wide range from 0.3V to VDD using the internal reference and can read the value of the supply over the I2C bus using an on-chip 10-bit ADC. The monitor and margin levels are set using the I2C serial bus. The SMM150 initiates margining via the I2C bus or by using the MUP or MDN inputs. Once the pre-programmed margin target voltage is reached, the SMM150 holds the converter at this volt...