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BSP450
MiniPROFET(High-side switch Short-circuit protection Input protection Overtemperature protection with hysteresis)
Mini PROFET® BSP 450
MiniPROFET• High-side switch
• Short-circuit protection
• Input protection
• Overtemperature protection with hysteresis
• Overload protection
• Overvoltage protection
• Switching inductive load
• Clamp of negative output voltage with inductive loads
• Undervoltage shutdown
• Maximum current internally limited
• Electrostatic discharge (ESD) protection
• Reverse battery protection1)
Package: SOT 223
Maximum Ratings3Rin
Signal GND
MINI-PROFET
Load GND
ESD-
Diode
1) With resistor RGND=150 Ω in GND connection, resistor in series with IN connections reverse load current
limited by connected load.2) At VIN > Vbb, the input current is not allowed to exceed ±5 mA.
BSP 450
Electrical Characteristics
Load Switching Capabilities and Characteristics
Input BSP 450
Operating Parameters
Protection Functions
Reverse Battery 6)increase of standby current at Tj = 125°C caused by temperature sense currentwhile demagnetizing load inductance, dissipated energy is EAS= ∫(VON(CL) * iL(t) dt,
approx. EAS= 1/2 * L * I2 * ( VON(CL)
VON(CL)-Vbb )Requires 150 Ω resistor in GND connection. Reverse load current (through intrinsic drain-source diode)
is normally limited by the connected load.
BSP 450
Max allowable power dissipation
On state resistance (Vbb-pin to OUT pin)510152025
Von [V]
IN); Vbb = 24 V510152025IN [V]
BSP 450
Typ. overload currentL(lim) = f (t), Vbb=24V, no heatsink, Param.:TjstartL(lim) [A]
t [ms]
Short circuit currentL(SC) = f (Tj);Vbb = 30 V;L(SC) [Α]
Tj [°C]
Typ. operating current
IGND = f (Tj), Vbb=30V, VIN=high
GND [mA]
Tj [°C]
Typ. standby currentbb(off) = f(Tj); Vbb = 30 V, VIN = lowbb(off) [μA]
-250255075100125150j [°C]
BSP 450
Typ. input turn on voltage thresholdIN(T+) = f (Tj)IN(T+) [V]
-250255075100125j [°C]
Typ. on-state resistance (Vbb-Pin to OUT-Pin)ON = f (Vbb,IL); IL = 0.5A, Tj = 25 °C;ON [mΩ]
Vbb [V]
Test circuit
