| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
R1121N231A Datasheet
R1121N231A Price Input Supply Voltage (VIN) ............. ... -0.3V t0 1 0V PLLLPF, RUN, SYNC/MODE, TRACK/SS, SENSE+, IPRG Voltages ............-0.3V to (VIN + 0.3V) VFB, ITH Voltages............... .. -0.3V t0 2.4V SW, SENSE- Voltages......... -2V to VIN + 1V (10V Max) PGOOD .... ... -0.3V t0 10V R1121N231A on stock The DCPOIB is a switching power supply and as such can place high peak current demands on the input supply. In order to avoid the supply falling momentarily during the fast switching pulses ground and power planes should be used to track the power to the input of DCPOIB. If this is not possible then the supplies must be connected in a star formation with the tracks made as wide as possible. The Pin column lists the affected pin number and the @PowerUp column gives the default state at true power up. "Command Code" byte and "Byte Count" byte must be sent following the acknowledge of the Address Byte. Although the data (bits) in these two bytes are considered "don't care", they must be sent and will be acknowledge. After that, the sequence described below (Register 0, Register l, Register 2, ....) will be valid and acknowledged. |
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