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Philips Semiconductors Product specification
TOPFET high side switch BUK215-50Y
SMD version of BUK210-50Y
UNDERVOLTAGE & OVERVOLTAGE CHARACTERISTICS
Limits are at -40˚C ≤ T
mb
≤ 150˚C and typicals at T
mb
= 25 ˚C. Refer to TRUTH TABLE.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Undervoltage
V
BG(UV)
Low supply threshold voltage
1
2 4.2 5.5 V
∆V
BG(UV)
Hysteresis - 0.5 - V
Overvoltage
V
BG(OV)
High supply threshold voltage
2
40 45 50 V
∆V
BG(OV)
Hysteresis - 1 - V
TRUTH TABLE
ABNORMAL CONDITIONS
DETECTED LOAD
INPUT SUPPLY LOAD OUTPUT STATUS DESCRIPTION
UV OV LC SC OT
L X X X X X OFF H off
H 0 0 0 0 0 ON H on & normal
H 0 0 1 0 0 ON L on & low current detect
H 1 0 X X X OFF H supply undervoltage lockout
H 0 1 X 0 0 OFF H supply overvoltage shutdown
H 0 0 0 1 X OFF L SC tripped
H 0 0 0 0 1 OFF L OT shutdown
3
KEY TO ABBREVIATIONS
L logic low UV undervoltage
H logic high OV overvoltage
X don’t care LC low current or open circuit load
0 condition not present SC short circuit
1 condition present OT overtemperature
1 Undervoltage sensor causes the device to switch off and reset.
2 Overvoltage sensor causes the device to switch off to protect its load.
3 The status will continue to indicate OT (even if the input goes low) until the device cools below the reset threshold. Refer to OVERLOAD
PROTECTION CHARACTERISTICS.
May 2001 5 Rev 1.010