BUK221-50DY

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 undervoltage 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...