Smart Highside Power Switch - Siemens Semiconductor Group
Description
PROFET® BTS 307
Smart Highside Power Switch
Features
• Overload protection • Current limitation • Short circuit protection • Thermal shutdown • Overvoltage protection • Fast demagnetization of inductive loads • Reverse battery protection1) • Open drain diagnostic output • Open load detection in OFF-state • CMOS compatible input • Loss of ground and loss of Vbb protection • Electrostatic discharge (ESD) protection
Product Summary Overvoltage protection Operating voltage On-state resistance Load current (ISO)
Vbb(AZ) Vbb(on) RON IL(ISO)
65 V 5.
8 .
.
.
58 V 250 mΩ 1.
7 A
TO-220AB/5
5 1 Straight leads
5
5 1
Standard
SMD
Application
• µC compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads • Most suitable for inductive loads • Replaces electromechanical relays, fuses and discrete circuits
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic feedback, monolithically integrated in Smart SIPMOS® technology.
Fully protected by embedded protection functions.
+ V bb
3
Voltage source
Overvoltage protection
Current limit
Gate protection
V Logic
Voltage sensor Charge pump Level shifter Rectifier Open load ESD Logic detection Limit for unclamped ind.
loads
OUT
2
IN
Temperature sensor
5
Load
4
ST
Short circuit detection
GND
® PROFET
Load GND
1
Signal GND
1)
With external current limit (e.
g.
resistor RGND=150 Ω) in GND connection, resistor in series with ST connection, reverse load current limited by connected load.
Semiconductor Group
1
08.
96
BTS 307
Pin 1 2 3 4 5 Symbol GND IN Vbb ST OUT (Load, L) I + S O Function Logic ground Input, activates the power switch in case of logical high signal Positive power supply voltage, the tab is shorted to this pin Diagnostic feedback Output to the load
Maximum Ratings at Tj = 25 °C unless otherwise specified Parameter Supply voltage (overvoltage protection see page 3) Supply voltage for full short circuit protect...
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