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L6902D Fiches technique(PDF) 3 Page - STMicroelectronics |
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L6902D Fiches technique(HTML) 3 Page - STMicroelectronics |
3 / 6 page 3/6 L6902D INTERNAL BLOCK DIAGRAM ELECTRICAL CHARACTERISTCS (Tj = 25°C, VCC = 12V, unless otherwise specified.) (•) Specification Referred to Tj from 0 to 125°C. Symbol Parameter Test Condition Min. Typ. Max. Unit VCC Operating input voltage range VO = 1.235V; IO = 1A • 8 36 V Vd Dropout voltage VCC = 8V; IO = 1A • 0.25 0.5 V IO Operating charging current Rsense = 0.1Ω 0.95 1 1.05 A •0.92 1.08 A Il Maximum limiting current VCC = 8V to 36V • 2 2.5 3.2 A fs Switching frequency • 212 250 287 kHz 225 250 275 kHz d Duty cycle 0 100 % DYNAMIC CHARACTERISTICS V5 Voltage feedback (FB) 8V < VCC < 36V, 20mA < IO < 1A 1.21 1.235 1.259 V • 1.198 1.235 1.272 V η Efficiency VO = 5V, VCC = 12V 90 % DC CHARACTERISTICS Iqop Total operating quiescent current •3 5 mA Iq Quiescent current Duty cycle = 0; VFB = 1.5V 2.7 mA VREF GOOD 3.8V COMP VFB DRIVER INHIBIT + - 1.235V E/A 1.235V THERMAL SHUTDOWN - + PWM OSCILLATOR OUT Vcc GND Vref SUPPLY TRIMMING FREQUENCY SHIFTER VOLTAGES MONITOR D Q CK CURRENT LIMITING PEAK TO PEAK + - Current_E/A Voltage_E/A CS- CS+ |
Numéro de pièce similaire - L6902D |
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Description similaire - L6902D |
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