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ZXLB1600 Datasheet(PDF) 2 Page - Zetex Semiconductors |
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ZXLB1600 Datasheet(HTML) 2 Page - Zetex Semiconductors |
2 / 16 page ABSOLUTE MAXIMUM RATINGS (Voltages to GND unless otherwise stated) Output voltage 30V Input voltage 7V Switch output current 500mA Power dissipation 800mW Operating temperature 0 to 70 C Storage temperature -55 to 125 C Junction temperature 150 C ZXLB1600 ISSUE 3 - SEPTEMBER 2003 SEMICO NDUC TORS 2 Symbol Parameter Conditions Min Typ Max Units General VIN Input voltage (1) 1.6 5.5 V IIN Supply current Shutdown (2) VEN = 0V 3.5 5 A Quiescent VEN =VIN,IOUT = 0V, Not switching 30 75 A Isolating switch RISO ‘On’ resistance VEN =VIN 0.7 2 IISO Leakage current VEN =0V 1 A VSW(max) Maximum voltage on SW pin during normal operation V IN+0.5 V LX Switch ILX Switch peak current limit (3) 0.15 0.35 A RLX ‘On’ resistance 0.5 2 ILX(leak) Switch leakage current 1 A VLX Operating voltage on LX pin -0.5 30 V Controller output VOUT Output voltage range V IN 28 V IOUT Output current Lx = 22 H, VOUT = 28V 5 10 mA VLNR Line regulation IOUT = 1mA, 2V < VIN <5.5V 0.1 %/V VLDR Load regulation VOUT = 28V, 100 A<IOUT < 5mA 0.15 %/mA fLX Operating frequency 500 kHz TON Output ‘ON’ time LX output low 10 s TOFF Output ‘OFF’ time LX output off 0.9 µs Efficiency (4) Lx=22 H, VOUT = 20V 80 % ELECTRICAL CHARACTERISTICS Test conditions unless otherwise stated: VIN = 3.0V, TAMB = 25°C Note: 1) Minimum supply voltage should be maintained above 2V for operation at minimum temperature. 2) Shutdown current includes the operating current for the low battery comparator, which remains active in shutdown mode. 3) This is the dc value. The dynamic value may exceed 350mA during normal operation, due to switching delays, coil inductance and supply voltage. 4) Efficiency is dependent upon the choice of external components, input/output voltages and load current.(see typical operating curves). |
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