BUK221-50DY
Dual channel high-side TOPFET™
Rev. 01 — 16 April 2003 Product data
1. Product profile
1.1 Description
Monol...
BUK221-50DY
Dual channel high-side TOPFET™
Rev. 01 — 16 April 2003 Product data
1. Product profile
1.1 Description
Monolithic temperature and overload protected dual high-side power switch based on TOPFET™ Trench technology in a 7-pin surface mount plastic package. Product availability: BUK221-50DY in SOT427 (D2-PAK).
1.2 Features
s s s s s s s s Very low quiescent current Power TrenchMOS™ Overtemperature protection Over and under
voltage protection Reverse battery protection Low charge pump noise Loss of ground protection Negative load clamping s s s s s s s s
CMOS logic compatibility Current limitation Latched overload protection ESD protection for all pins Diagnostic status indication Off-state open load detection Load dump protection Internal ground resistor.
1.3 Applications
s 12 and 24 V grounded loads s Inductive loads s High inrush current loads s Replacement for relays and fuses.
1.4 Quick reference data
Table 1: Symbol RBLon IL IL(nom) IL(lim) VBG(oper) Quick reference data Parameter battery-load on-state resistance load current nominal load current (ISO) self-limiting load current battery-ground operating
voltage Min 3.6 8 5.5 Max 90 4 16 35 Units mΩ A A A V
Philips Semiconductors
BUK221-50DY
Dual channel high-side TOPFET™
2. Pinning information
B
S
mb I1 P I2 1 2 3 4 5 6 7 L2 L1
Front view
MBK128
G
03pa68
No connection can be made to pin 4 (cropped).
P represents protection circuitry.
Fig 1. Pinning; SOT427 (D2-PAK).
Fig 2. Symbol; (Dual High-Side S...