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BTS723GW
Smart High Side Switches
Datasheet PROFET
BTS 723 GW Smart High-Side Power Switch
Two Channels: 2 x 100mΩ
Status Feedback
Suitable for 42V
Product Summary Package
General Description N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input and
diagnostic feedback, monolithically integrated in Smart SIPMOS 80V technology. Providing embedded protective functions An array of resistors is integrated in order to reduce the external components
Applications µC compatible high-side power switch with diagnostic feedback for 12V and 24V and 42V grounded loads All types of resistive, inductive and capacitive loads Most suitable for inductive loads Replaces electromechanical relays, fuses and discrete circuits
Basic Functions CMOS compatible input Improved electromagnetic compatibility (EMC) Fast demagnetization of inductive loads Stable behaviour at undervoltage Wide operating voltage range Logic ground independent from load ground Optimized inverscurrent capability
Protection Functions Short circuit protection Overload protection
• Current limitation
• Thermal shutdown Overvoltage protection (including load dump) with external
resistor Reverse battery protection with external resistor Loss of ground and loss of Vbb protection Electrostatic discharge protection (ESD)
Diagnostic Function Diagnostic feedback with open drain output and integrated pull up resistors Open load detection in OFF-state Feedback of thermal shutdown in ON-state Diagnostic feedback of both channels works properly in case of inverse current
Block Diagram
BTS 723 GW Functional diagram BTS 723 GW Pin Definitions and Functions
Pin configuration BTS 723 GW Maximum Ratings at Tj = 25°C unless otherwise specified ) Current limit is a protection function. Operation in current limitation is considered as "outside" normal
operating range. Protection functions are not designed for continuous repetitive operation. Supply voltages higher than Vbb(AZ) require an external current limit for the GND and status pins (a 150Ω
resistor for the GND connection is recommended.
3) RI = internal resistance of the load dump test pulse generator
4) VLoad dump is setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839 Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm2 (one layer, 70µm thick) copper area for Vbb
connection. PCB is vertical without blown air. See page 15
BTS 723 GW Thermal Characteristics Soldering point: Upper side of solder edge of device pin 15. See page 15
Electrical Characteristics
Load Switching Capabilities and Characteristics
BTS 723 GW Operating Parameters Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm2 (one layer, 70µm thick) copper area for Vbb
connection. PCB is vertical without blown air. See page 15 ) not subject to production test, specified by design See timing diagram on page 13.
10) Supply voltages higher than Vbb(AZ) require an external current limit for the GND; a 150Ω resistor is
recommended. See also VON(CL) in table of protection functions and circuit diagram on page 10.
11) Measured with load; for the whole device; all channels off ) not subject to production test, specified by design
13) Add IST, if IST > 0
BTS 723 GW Protection Functions14)
Reverse Battery
Inverse current 19) 14) Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are not
designed for continuous repetitive operation. ) not subject to production test, specified by design
16) If channels are connected in parallel, output clamp is usually accomplished by the channel with the lowest ON(CL)
17) Requires a 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source
diode has to be limited by the connected load. Power dissipation is higher compared to normal operating
conditions due to the voltage drop across the drain-source diode. The temperature protection is not active
during reverse current operation! Input and Status currents have to be limited (see max. ratings page 4 and
circuit page 10). ) not subject to production test, specified by design ) not subject to production test, specified by design
20) In case of an inverse current of 3A the both status outputs must not be disturbed.
The neighbour channel can be switched normally; not all paramters lay within the range of the spec
Please note, that in case of an inverse current no protection function is active. The power dissipation is
BTS 723 GW Diagnostic Characteristics
Input and Status Feedback 23) ) not subject to production test, specified by design ) not subject to production test, specified by design
23) If a ground resistor RGND is used, add the voltage drop across these resistors.
