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TEA1723FT 数据表(PDF) 8 Page - NXP Semiconductors |
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TEA1723FT 数据表(HTML) 8 Page - NXP Semiconductors |
8 / 14 page TEA1723FT All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 2.1 — 7 June 2012 8 of 14 NXP Semiconductors TEA1723FT HV start-up flyback controller with integrated MOSFET for 11 W 8. Characteristics Table 5. Characteristics VCC = 20 V; VFB = 0 V; Rsource = 0.75 Ω; Tj-switch = 25 °C; Tj-controller = 25 °C; all voltages referenced to GND, positive currents flow into the IC, unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Supply (Pin: VCC) ICC(startup)0V start-up supply current VCC = 0 V -1.6 -1.2 -0.8 mA ICC(startup)17V start-up supply current VCC = VCC(startup) -1.6 -0.7 -0.2 mA ICC(energysave) supply current in energy save VFB = 2.8 V, non-switching 90 130 170 µA ICC(50kHz) supply current at 50 kHz in CC mode 530 750 970 µA VCC(startup) start-up supply voltage 15 17 19 V VCC(stop) stop supply voltage undervoltage lockout of IC 7.5 8.5 9.5 V Totp overtemperature protection threshold temperature on controller die -150 - °C Totp(hys) overtemperature protection temperature hysteresis -50 -°C Feedback (Pin: FB) Vth(ovp)fbck feedback overvoltage protection threshold voltage 3.1 3.2 3.3 V Vref(fbck) feedback reference voltage in CV ode 2.5 2.55 2.6 V Vth(fbck)CV constant voltage mode feedback threshold voltage in burst mode operation 2.35 2.4 2.45 V Vth(det)demag(fb) demagnetization detection voltage level on FB pin 25 50 75 mV Oscillator (Pins: DRAIN and SOURCE) fburst burst frequency burst frequency in CVB mode, without jitter 1575 1750 1935 Hz fjit/fsw jitter frequency to switching frequency ratio in all operation modes except in CVB mode 579% fosc-high oscillator frequency High maximum switching frequency in CV and CC mode, without jitter 48 50.5 53 kHz fosc-low oscillator frequency Low minimum switching frequency in CV and CC mode, without jitter. Switching frequency in CVB mode 21 22.5 24 kHz fsweep jitter sweep frequency - 200 - Hz δmax maximum duty cycle 72 75 78 % |
类似零件编号 - TEA1723FT |
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类似说明 - TEA1723FT |
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