MB39C015 Datasheet, PDF (18/43 Pages) Cypress Semiconductor – High efficiency : 96% (Max)

MB39C015
10.5 XPOR threshold voltage setting [VPORH, VPORL]
Set the detection voltage by applying voltage to the VDET pin via an external resistor calculated according to this formula.
 VPORH
 VPORL
R3  R4
R4
R3  R4
R4
× VTHHPR
× VTHLPR
VTHHPR = 0.600 V
VTHLPR = 0.583 V
Example for setting detection voltage to 3.7 V
R3 = 510 kΩ
R4 = 100 kΩ
510 kΩ  100 kΩ
 VPORH
× 0.600  3.66 =: 3.7 [V]
100 kΩ
510 kΩ  100 kΩ
 VPORL
× 0.583  3.56 =: 3.6 [V]
100 kΩ
MB39C015
AVDD
R3
VDET
R4
XPOR
VIN
1 MΩ
XPOR
Document Number: 002-08364 Rev. *A
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