The BTS621L1 is a high-side power switch with integrated vertical power FETs that provide embedded protection and diagnostics. N-Channel Vertical Power FET with Charge Pump, Ground Referenced CMOS Compatible Input and Diagnostic Feedback, Monolithic SmartSAPMOS Technology. Provides embedded protection.

feature

Overload protection

current restrictions

Short circuit protection

Thermal shutdown

Overvoltage protection (including load dump)

Fast demagnetization of inductive loads

Reverse battery protection 1)

Undervoltage and Overvoltage Shutdown

Auto restart and lag

Open-drain diagnostic output

Turn on load detection in ON state

CMOS compatible input

Ground loss and Vbb protection loss

Electrostatic discharge (ESD) protection

Green Product (RoHS Compliant)

AEC qualified

application

C compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads All types of resistive, inductive and capacitive loads

Replacement of electromechanical relays, fuses and discrete circuits

Product Summary

Overvoltage protection Vbb (AZ) 43 V.

Operating voltage Vbb(on) 5.0...34 V.

channel: each

parallel

On-resistance RON 10050m 61527 ;

Load current (ISO) IL (ISO) 4.4 8.5 A

Current Limit IL (SCr) 8 8 A.

Pin symbol function

1 OUT1 (load, L) output 1, protect the high-side power output of channel 1

2 GND logic ground

3 IN1 input 1, activates channel 1 in the presence of a logic high signal

4 Vbb positive supply voltage,

Label shorted to this pin

5 ST diagnostic feedback: open drain, low fault

6 IN2 Input 2, activates channel 2 in the presence of a logic high signal

7 OUT2 (load, L) output 2, high-side power output for protection channel 2

Status output diagram

ESD Zener: 6.1 V typical, 5 mA max; RST(ON) < 380 , 1.6 mA, ESD Zener is not

Used as a voltage clamp under DC conditions. Operating in this mode may cause the Zener diode to drift (increase to 1 V).

Inductor and Overvoltage Output Clamp Diagram

VON is clamped to 47 V (typ).

Open Detection: On-state Diagnostic Condition: VON

OFF-STATE DIAGNOSTIC CONDITIONS: VOUT > 3 V (typ); at low

GND disconnected

any kind of load. If input = high, then VOUTVIN - VIN(T+). Since VGND > 0, there is no VST = low signal available.