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BTS720L1 Datasheet(PDF) 5 Page - Siemens Semiconductor Group |
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BTS720L1 Datasheet(HTML) 5 Page - Siemens Semiconductor Group |
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5 / 14 page 
BTS720L1 Parameter and Conditions, each of the four channels Symbol Values Unit at Tj = 25 °C, Vbb = 12 V unless otherwise specified min typ max Semiconductor Group Page 5 26.Feb.96 Protection Functions Initial peak short circuit current limit, (see timing diagrams, page 11) each channel, Tj =-40°C: Tj =25°C: Tj =+150°C: IL(SCp) 16 12 7 22 18 11 28 24 15 A two parallel channels twice the current of one channel four parallel channels four times the current of one channel Repetitive short circuit current limit, Tj = Tjt each channel two parallel channels four parallel channels (see timing diagrams, page 11) IL(SCr) -- -- -- 10 10 10 -- -- -- A Initial short circuit shutdown time Tj,start =-40°C: Tj,start = 25°C: (see page 10 and timing diagrams on page 11) toff(SC) -- -- 3.8 3 -- -- ms Thermal overload trip temperature Tjt 150 -- -- °C Thermal hysteresis ∆T jt -- 10 -- K Reverse Battery Reverse battery voltage 10) - Vbb -- -- 32 V Drain-source diode voltage (Vout > Vbb) IL = - 2.9 A, Tj = +150°C - VON -- 610 -- mV Diagnostic Characteristics Open load detection current, (on-condition) each channel, Tj = -40°C: Tj = 25°C: Tj = +150°C: I L (OL) 4 800 800 550 -- -- -- 1450 1300 1200 mA two parallel channels twice the current of one channel four parallel channels four times the current of one channel Open load detection voltage11) Tj =-40..+150°C: VOUT(OL) 234 V Internal output pull down (OUT to GND), VOUT = 5 V Tj =-40..+150°C: RO 41030 k Ω 10 ) 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. Note that the power dissipation is higher compared to normal operating conditions due to the voltage drop across the intrinsic 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 3 and circuit page 8). 11) External pull up resistor required for open load detection in off state. |
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