46.11.3 Brown-Out Detectors (BOD) Characteristics

Table 46-20. BOD33 Characteristics (BOD33.VREFSEL = 0)
Symbol Parameters Conditions Min. Typ. Max. Unit
VBOD+(2) BOD33 high threshold level BOD33.LEVEL = 6 1.66 1.68 1.70 V
BOD33.LEVEL = 7 1.70 1.72 1.74
BOD33.LEVEL = 39 2.79 2.84 2.89
BOD33.LEVEL = 48 3.12 3.18 3.20
VBOD- / VBOD(2) BOD33 low threshold level BOD33.LEVEL = 6 1.61 1.64 1.65 V
BOD33.LEVEL = 7 1.65 1.67 1.68
BOD33.LEVEL = 39 2.74 2.78 2.80
BOD33.LEVEL = 48 3.04 3.09 3.11
- Step size - - 34 - mV
VHYS Hysteresis (VBOD+ - VBOD-) BOD33.LEVEL = 0x0 to 0x3F 40 - 180 mV
TSTART(1) Startup time time from enable to RDY - 3.2 - µs
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.
  2. With BOD33.VREFSEL = 0 and no hysteresis configured, BOD levels can be given as:

    VBOD+ = VBOD- = 1.43 + BOD33.LEVEL * Step_size

Table 46-21. BOD33 Characteristics (BOD33.VREFSEL = 1)
Symbol Parameters Conditions Min. Typ. Max. Unit
VBOD+(2) BOD33 high threshold level BOD33.LEVEL = 17 1.62 1.70 1.79 V
BOD33.LEVEL = 18 1.65 1.73 1.81
BOD33.LEVEL = 59 2.86 2.96 3.08
BOD33.LEVEL = 63 2.97 3.08 3.20
VBOD- / VBOD(2) BOD33 low threshold level BOD33.LEVEL = 17 1.59 1.65 1.72 V
BOD33.LEVEL = 18 1.62 1.68 1.75
BOD33.LEVEL = 59 2.73 2.83 2.94
BOD33.LEVEL = 63 2.83 2.94 3.06
- Step size - - 28 - mV
VHYS Hysteresis (VBOD+ - VBOD-) BOD33.LEVEL = 0x0 to 0x3F 30 - 150 mV
TSTART(1) Startup time time from enable to RDY - 3.2 - µs
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.
  2. With BOD33.VREFSEL = 1 and no hysteresis configured, BOD levels can be given as:

    Vbod+ = Vbod- = 1.17 + BOD33.LEVEL * Step_size

Table 46-22. BOD33 Power Consumption (1)
Symbol Parameters Conditions Ta Min. Typ. Max Units
IDD IDLE, mode CONT VCC = 1.8V

Max.
at 85°C

Typ.
at 25°C

 - 17.4 20.9 µA
VCC = 3.3V - 28.5 34.7
IDLE, mode SAMPL VCC = 1.8V - 0.02 0.09
VCC = 3.3V - 0.04 0.10
STDBY, mode SAMPL VCC = 1.8V - 0.11 0.12
VCC = 3.3V - 0.23 0.28
Note:
  1. These values are based on characterization. They are not covered in test limits in production.