Document
Data Sheet BTS50055-1TMA
Smart Highside High Current Power Switch Reversave
Features
• Overload protection • Current limitation • Short circuit protection • Over temperature protection • Over voltage protection (including load dump) • Clamp of negative voltage at output • Fast deenergizing of inductive loads 1) • Low ohmic inverse current operation • Reversave (Reverse battery protection) • Diagnostic feedback with load current sense • Open load detection via current sense • Loss of Vbb protection 2) • Electrostatic discharge (ESD) protection • Green product (RoHS compliant) • AEC qualified
Product Summary Overvoltage protection Output clamp Operating voltage On-state resistance Load current (ISO) Short circuit current limitation Current sense ratio
Vbb(AZ) VON(CL) Vbb(on)
RON IL(ISO) IL(SC) IL : IIS
62 V 42 V 5.0 ... 34 V
6.0 mΩ 70 A 130 A 14 000
PG-TO220-7-4
Application
• Power switch with current sense diagnostic
feedback for 12 V DC grounded loads • Most suitable for loads with high inrush current
like lamps and motors; all types of resistive and
inductive loads • Replaces electromechanical relays, fuses and discrete circuits
1
SMD
7
General Description
N channel vertical power FET with charge pump, current controlled input and diagnostic feedback with load current sense, integrated in Smart SIPMOS chip on chip technology. Providing embedded protective functions.
4 & Tab
Voltage source
Overvoltage protection
Current limit
Gate protection
R bb
+ Vbb
Voltage sensor
3 IN
ESD
Logic
Charge pump Level shifter
Rectifier
Limit for unclamped ind. loads
Output Voltage detection
Current Sense
OUT 1,2,6,7
IL
Load
I IN Temperature sensor
VIN VIS
Logic GND
I IS
IS
5
RIS
PROFET
1) With additional external diode. 2) Additional external diode required for energized inductive loads (see page 9).
Infineon Technologies AG
Page 1of 18
Load GND
2010-April-27
Pin 1 2 3
4 5 6 7
Data Sheet BTS50055-1TMA
Symbol OUT OUT IN
Vbb IS OUT OUT
Function
O Output; output to the load; pin 1, 2, 6 and 7 must be externally shorted with each other especially in high current applications. 3)
O Output; output to the load; pin 1, 2, 6 and 7 must be externally shorted with each other especially in high current applications. 3)
I Input; has an internal pull up; activates the power switch in case of short to ground
+
Supply voltage; positive power supply voltage; tab and pin 4 are internally shorted; in high current applications use the tab 4).
S Sense Output; Diagnostic feedback; provides a sense current proportional to the load current; zero current on failure (see Truth Table on page 7)
O
Output; output to the load; pin 1, 2, 6 and 7 must be externally shorted with each other especially in high current applications. 3)
O
Output; output to the load; pin 1, 2, 6 and 7 must be externally shorted with each other especially in high current applications. 3)
Maximum Ratings at Tj = 25 °C unless otherwise specified
Parameter
Symbol
Suppl.