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ZXLD1320DCATC Datasheet(PDF) 6 Page - Diodes Incorporated |
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ZXLD1320DCATC Datasheet(HTML) 6 Page - Diodes Incorporated |
6 / 18 page ZXLD1320 Issue 1 - January 2008 6 www.zetex.com © Zetex Semiconductors plc 2008 DC-DC converter output parameters Switching NPN transistor NOTES: (b) Measured under pulse conditions. (c) This current is measured via the collectors and emitters of the switch with these connected to ground (0V) (d) Measured under pulse conditions. Peak Current = Ic Symbol Parameter Conditions Min Typ Max Units Toff(100) Discharge pulse width 100% Output current 0.7 1.2 1.7 µs Toff(10) Discharge pulse width 10% Output current 4 8 12 µs fLXmax Maximum operating frequency 600 KHz VOH(POK) POK flag high level output voltage 4V<VIN<18V Output sourcing 0.3µA 2VIN V VOL(POK) POK flag low level output voltage Output sinking 1mA 0 0.4 V T(POK) POK assertion delay time Switch permanently on 300 500 700 µs Symbol Parameter Conditions Min Typ Max Units ISW Average continuous switch current(b) 1.5 A IBON(max) Maximum base current into switch transistor from internal drive circuit(c) 4V<VIN<18V BIAS pin at 0V 30 50 70 mA IBON Base current into switch transistor using external resistor (RBASE) from BIAS pin to ground RBIAS = 1680Ω 10 mA V(BR)CE Collector-Emitter breakdown voltage IC=10µA 20 V VCE(sat) Collector-Emitter saturation voltage IC=0.1A, IB=10mA IC=2A, IB=50mA(d) 50 120 mV mV hFE Static forward current transfer ratio IC=200mA, VCE=2V IC=2A, VCE=2V 209 116 COBO Output capacitance VCB=10V,f=1MHz 64 pF t(on) Turn-on time Ic=0 to IC=2A VIN=10V 30 ns t(off) Turn-off time IC=2A to Ic<100µA 28 ns |
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