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 (D
2
-PAK).
1.2 Features
1.3 Applications
1.4 Quick reference data
a73 Very low quiescent current a73 CMOS logic compatibility
a73 Power TrenchMOS™ a73 Current limitation
a73 Overtemperature protection a73 Latched overload protection
a73 Over and undervoltage protection a73 ESD protection for all pins
a73 Reverse battery protection a73 Diagnostic status indication
a73 Low charge pump noise a73 Off-state open load detection
a73 Loss of ground protection a73 Load dump protection
a73 Negative load clamping a73 Internal ground resistor.
a73 12 and 24 V grounded loads a73 High inrush current loads
a73 Inductive loads a73 Replacement for relays and fuses.
Table 1: Quick reference data
Symbol Parameter Min Max Units
R
BLon
battery-load on-state resistance - 90 mΩ
I
L
load current - 4 A
I
L(nom)
nominal load current (ISO) 3.6 - A
I
L(lim)
self-limiting load current 8 16 A
V
BG(oper)
battery-ground operating voltage 5.5 35 V