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L9925 数据表(PDF) 2 Page - STMicroelectronics |
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L9925 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 9 page ![]() ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond whih damage to the device may occur. Functional operation under these condition isn’t implied. For voltages and currents applied externally to the device: Symbol Parameter Value Unit VVSDC Dc Supply Voltage -0.3 to 26 V VVSP Supply Voltage Pulse (T ≤400ms) (1) 40 V IOUT DC Output Load Current ±1.2 A IOUT MAX DC Output Current: for VOUT > VVS +0.3V or VOUT < -0.3V the internal DMOS reverse and/or substrate diode become conductive and the applied current should not exceed the specified limit. ±1.8 A VIN1,2 DC Input Voltage -0.3 to 7 V VEN Enable Input Voltage -0.3 to 7 V Tstg,Tj Storage and Junction Temperature -40 to 150 °C Ptot Total Power Dissipation (Tpins =80 °C) (Tamb =70 °C no copper area on PCB) (Tamb =70 °C 8cm2 copper area on PCB) 5 1.23 2 W W W (1) Device may be overstressed if pulsed simultaneous with short circuit at one or more of the outputs will be present. THERMAL DATA Symbol Parameter Value Unit TjTS Thermal Shut-down junction temperature min. 150 °C TjTSH Thermal Shut-down thereshold hysteresis typ. 25 °C Rth j-amb Thermal Resistance Junction-ambient (2) 50 °C/W Rth j-pins Thermal Resistance Junction-pins 15 °C/W (2) With 6cm2 on board heat sink area PGND IN1 EN1 N.C. N.C. GND OUT1 GND OUT3 VS2 GND GND N.C. VS1 N.C. OUT2 IN2 N.C. 1 3 2 4 5 6 7 8 9 26 25 24 23 22 20 21 19 27 10 28 N.C. N.C. D88AT424 N.C. EN2 IN3 IN4 OUT4 N.C. 11 12 13 18 16 17 15 14 PGND N.C. PIN CONNECTION L9925 2/9 |
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