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TS1451 Arkusz danych(PDF) 4 Page - Taiwan Semiconductor Company, Ltd |
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TS1451 Arkusz danych(HTML) 4 Page - Taiwan Semiconductor Company, Ltd |
4 / 7 page TS1451 4-7 2003/12 rev. A Electrical Characteristics (Continued) ERROR AMPLIFIER SECTION Parameter Test Conditions Min Typ Max Unit Input offset voltage Vo(FB)= 1.25V -- -- +/- 6 mV Input offset current Vo(FB)= 1.25V -- -- +/- 100 nA Input bias current Vo(FB)= 1.25V -- 160 500 nA Common-mode input voltage range Vcc= 3.6V to 40V 1.05 to 1.45 V Open-loop voltage amplification Rf= 200K Ω 70 80 -- dB Unity-gain bandwidth -- 1.5 -- MHz Common-mode rejection ratio 60 80 -- dB Maximum output voltage Vref-0.1 -- -- V Minimum output voltage -- -- 1 V Output sink current (FB) VID= -0.1, Vo= 1.25V 0.5 1.6 -- mA Output source current (FB) VID= 0.1, Vo= 1.25V -45 -70 -- uA PWM COMPARATOR SECTION Parameter Test Conditions Min Typ Max Unit Input threshold voltage (FB) f= 10KHz Zero duty cycle -- 2.05 2.25 V Input sink current (pin 3) Maximum duty cycle 1.2 1.45 -- mA TOTAL DEVICE Parameter Test Conditions Min Typ Max Unit Standby supply current Off-state -- 2.5 3.0 Average supply current RT= 10K Ω -- 2.8 3.5 mA |
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