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TEA1733T датащи(PDF) 11 Page - NXP Semiconductors |
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TEA1733T датащи(HTML) 11 Page - NXP Semiconductors |
11 / 17 page TEA1733T_TEA1733LT_1 © NXP B.V. 2009. All rights reserved. Objective data sheet Rev. 01 — 26 October 2009 11 of 17 NXP Semiconductors TEA1733T; TEA1733LT GreenChip SMPS control IC IO(PROTECT) output current on pin PROTECT VVINSENSE =Vlow(PROTECT) −34 −32 −30 µA VVINSENSE =Vhigh(PROTECT) 87 107 127 µA Vclamp(PROTECT) clamp voltage on pin PROTECT II(PROTECT) = 200 µA [1] 3.5 4.1 4.7 V Peak current control (pin CTRL) VCTRL voltage on pin CTRL for minimum flyback peak current 1.5 1.8 2.1 V for maximum flyback peak current 3.4 3.9 4.3 V Rint(CTRL) internal resistance on pin CTRL 57 9k Ω IO(CTRL) output current on pin CTRL VCTRL = 1.4 V −0.7 −0.5 −0.3 mA VCTRL = 3.7 V −0.28 −0.2 −0.12 mA Pulse width modulator fosc oscillator frequency 62 66.5 71 kHz fmod modulation frequency 210 280 350 Hz ∆fmod modulation frequency variation ± 3 ± 4 ± 5 kHz δmax maximum duty cycle 68.5 72 79 % Vstart(red)f frequency reduction start voltage pin CTRL 1.5 1.8 2.1 V Vδ(zero) zero duty cycle voltage pin CTRL 1.25 1.55 1.85 V Overpower protection (pin OPTIMER) Vprot(OPTIMER) protection voltage on pin OPTIMER 2.4 2.5 2.6 V Iprot(OPTIMER) protection current on pin OPTIMER no overpower situation 100 150 200 µA overpower situation −12.2 −10.7 −9.2 µA Restart timer (pin OPTIMER) Vrestart(OPTIMER) restart voltage on pin OPTIMER low level 0.8 1.2 1.6 V high level 4.1 4.5 4.9 V Irestart(OPTIMER) restart current on pin OPTIMER charging OPTIMER capacitor −127 −107 −87 µA discharging OPTIMER capacitor −0.1 0 0.1 µA Current sense (pin ISENSE) Vsense(max) maximum sense voltage ∆V/∆t=50mV/µs; VVINSENSE = 0.78 V 0.48 0.51 0.54 V ∆V/∆t = 200 mV/µs; VVINSENSE = 0.78 V 0.50 0.53 0.56 V Vth(sense)opp overpower protection sense threshold voltage 370 400 430 mV ∆VISENSE/∆t slope compensation voltage on pin ISENSE 17 25 33 mV/ µs Table 5. Characteristics …continued Tamb =25 °C; VCC = 20 V; all voltages are measured with respect to ground (pin 6); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit |
Аналогичный номер детали - TEA1733T |
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Аналогичное описание - TEA1733T |
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