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LM2655 датащи(PDF) 5 Page - National Semiconductor (TI) |
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LM2655 датащи(HTML) 5 Page - National Semiconductor (TI) |
5 / 16 page All Output Voltage Versions Electrical Characteristics Specifications with standard typeface are for T J = 25˚C, and those in boldface type apply over full Operating Temperature Range.V IN = 10V unless otherwise specified. Symbol Parameter Conditions Typical (Note 6) Limit (Note 5) Units I Q Quiescent Current Shutdown Pin Floating (Device On) Device Not Switching 1.7 3 mA mA(max) I QSD Quiescent Current in Shutdown Mode Shutdown Pin Pulled Low 7 12/20 µA µA(max) R DS(ON) Switch ON Resistance I SWITCH = 1.5A 33 80 m Ω m Ω(max) R SW(ON) Switch On Resistance (MOSFET ON Resistance + Bonding Wire Resistance) I SWITCH = 1.5A 72 m Ω I L Switch Leakage Current 5 nA V BOOT Bootstrap Regulator Voltage I BOOT =1mA C BOOT=tbd 6.7 6.4 7.0 V V(min) V(max) G M Error Amplifier Transconductance 1250 µmho A V Error Amplifier Voltage Gain 100 I EA_SOURCE Error Amplifier Source Current V IN = 4V, VFB = .9*VOUT,VCOMP =2V 40 32/10 µA µA(min) I EA_SINK Error Amplifier Sink Current V IN = 4V, VFB = 1.1*VOUT,VCOMP =2V 80 53/30 µA µA(min) V EAH Error Amplifier Output Swing Upper Limit V IN = 4V, VFB = .9*VOUT,VCOMP =2V 2.70 2.50/2.40 V V(min) V EAL Error Amplifier Output Swing Lower Limit V IN = 4V, VFB = .9*VOUT,VCOMP =2V 1.25 1.35/1.50 V V(max) F OSC Oscillator Frequency Measured at Switch Pin V IN =4V 300 280/255 330/345 kHz kHz(min) kHz(max) D MAX Maximum Duty Cycle V IN =4V 95 92 % %(min) I SS Soft-Start Current Voltage at the SS Pin = 1.4V 11 14 µA µA(max) V OUTUV V OUT Undervoltage Lockout Threshold Voltage 81 76 84 %V OUT %V OUT(min) %V OUT(max) Hysteresis for V OUTUV 5%V OUT V OUTOV V OUT Overvoltage Lockout Threshold Voltage 108 106 114 %V OUT %V OUT(min) %V OUT(max) Hysteresis for V OUTOV 5%V OUT I LDELAY__ SOURCE LDELAY Pin Source Current 5 µA I SHUTDOWN Shutdown Pin Current Shutdown Pin Pulled Low 2.2 3.7/4.0 µA µA(max) V SHUTDOWN Shutdown Pin Threshold Voltage Rising Edge 0.6 0.25 0.9 V V(min) V(max) T SD Thermal Shutdown Temperature 165 ˚C www.national.com 5 |
Аналогичный номер детали - LM2655 |
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Аналогичное описание - LM2655 |
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