MC34978AESR2 NXP
Available
MC34978AESR2 NXP
Features • Fully functional operation 4.5 V ≤ VBATP ≤ 36 V • Full parametric operation 6.0 V ≤ VBATP ≤ 28 V • Operating switch input voltage range from -1.0 V to 36 V • Eight programmable inputs (switches to battery or ground) • 14 switch-to-ground inputs • Selectable wetting current (2, 6, 8, 10, 12, 14, 16, or 20 mA) • Interfaces directly to an MCU using 3.3 V / 5.0 V SPI protocol • Selectable wake-up on change of state • Typical standby current IBATP = 30 μA and IDDQ = 10 μA • Active interrupt (INT_B) on change-of-switch state • Integrated battery and temperature sensing Figure 1. 33978 simplified application diagram Notes 1. The IC is functional from 4.5 V < VBATP < 6.0 V, but with degraded parametric values. The parameters may not meet the minimum and maximum specifications when VBATP drops below 6.0 V
Features • Fully functional operation 4.5 V ≤ VBATP ≤ 36 V • Full parametric operation 6.0 V ≤ VBATP ≤ 28 V • Operating switch input voltage range from -1.0 V to 36 V • Eight programmable inputs (switches to battery or ground) • 14 switch-to-ground inputs • Selectable wetting current (2, 6, 8, 10, 12, 14, 16, or 20 mA) • Interfaces directly to an MCU using 3.3 V / 5.0 V SPI protocol • Selectable wake-up on change of state • Typical standby current IBATP = 30 μA and IDDQ = 10 μA • Active interrupt (INT_B) on change-of-switch state • Integrated battery and temperature sensing Figure 1. 33978 simplified application diagram Notes 1. The IC is functional from 4.5 V < VBATP < 6.0 V, but with degraded parametric values. The parameters may not meet the minimum and maximum specifications when VBATP drops below 6.0 V
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