TEA1750 NXP Semiconductors, TEA1750 Datasheet
TEA1750
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TEA1750 Summary of contents
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... A second low voltage Silicon On Insulator (SOI used for accurate, high speed protection functions and control. The TEA1750 enables highly efficient and reliable supplies with power requirements up to 250 designed easily and with the minimum number of external components. 2. Features 2 ...
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... Ordering information Table 1. Ordering information Type number Package Name TEA1750T SO16 TEA1750_2 Product data sheet Description plastic small outline package; 16 leads; body width 3.9 mm Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Version SOT109-1 © NXP B.V. 2008. All rights reserved ...
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... START STOP PFC V UVLO VoBURST LOW VoBURST HIGH VALLEY DETECT TIMER 4 s OTP PFCGATE ZCS CHANGE TIMER 50 s 100 Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC FBDRIVER 13 FB DRIVER 80 A DRV FB GATE EXT PROT 1.25 V PROT R 2 FREQ ENABLEFB S RED ...
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... GND FBCTRL 3 FBAUX 4 TEA1750T LATCH 5 PFCCOMP 6 7 VINSENSE 8 PFCAUX Pin configuration for TEA1750T (SOT109-1) Pin description Pin Description 1 supply voltage 2 ground 3 control input for flyback 4 input from auxiliary winding for demagnetization timing and overvoltage protection for flyback 5 general purpose protection input ...
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... NXP Semiconductors 7. Functional description www.datasheet4u.com 7.1 General control The TEA1750 contains a controller for a power factor correction circuit as well as a controller for a flyback circuit. A typical configuration is shown in Fig 3. 7.1.1 Start-up and undervoltage lock-out Initially the capacitor on the V As long pin is shorted to ground. For a short start-up time the charge current above V ...
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... FBCTRL pin reaches the V is assumed. The TEA1750 then initiates a safe restart. When one of the protection functions is activated, both converters stop switching and the ...
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... FBSENSE FBDRIVER FBCTRL VOSENSE V out CHARGING VCC STARTING CAPACITOR CONVERTERS Start-up sequence, normal operation, and re-start sequence Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC soft start soft start NORMAL PROTECTION RESTART OPERATION on pin LATCH (typ 80 A). Switching of O(LATCH) V startup ...
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... As soon as the VINSENSE voltage drops below capacitor is not recharged from the HV mains. The OTP CC supply voltage is not sufficient. CC Section 7.1.4 on Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC to drop to this reset CC and control. The resulting mains harmonic © ...
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... Mains Harmonic Reduction (MHR) requirements may be hard to meet. To compensate for the mains input voltage influence, the TEA1750 contains a correction circuit. Via the VINSENSE pin the average input voltage is measured and the information is fed to an internal compensation circuit ...
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... C SS1 R SENSE1 Soft start-up and soft stop of PFC Section the soft-stop circuit is activated, again to avoid audible burst(H) voltage is well below the V burst(H) . bus Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control SOFT START SOFT STOP CONTROL OCP + 0.5 V 014aaa018 Section 7.3) is low, the fl ...
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... PFC is stopped. If the low mains situation continues, level and the flyback converter is also disabled. start(fb for a fast restart as soon as the mains input voltage is pu(VINSENSE) th(ol)(VOSENSE) Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC V burst(H) V burst(L) soft-start ton control ...
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... A. This permits fast turn-on and turn-off of the power MOSFET for efficient operation. 7.3 Flyback controller The TEA1750 includes a controller for a flyback converter. The flyback converter operates in quasi-resonant or discontinuous conduction mode with valley switching. The auxiliary winding of the flyback transformer provides demagnetization detection and powers the IC after start-up ...
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... Equation 1. High frequency operation makes small and cost-effective Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC PFC on discontinuous with valley switching quasi resonant V FBCTRL 014aaa026 1 --------------------------------------------------- - ...
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... Start of new cycle at lowest drain voltage. (2) Start of new cycle in a classical Pulse Width Modulation (PWM) system without valley detection. Signals for valley switching Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC secondary ringing (2) (1) 014aaa027 © NXP B.V. 2008. All rights reserved. ...
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... Product data sheet V sense(fb)max PFC burst mode 0.52 V flyback frequency reduction FBSENSE peak voltage flyback cycle skip mode 0.13 V 1.4 V Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC PFC on flyback discontinuous or QR 1 FBCTRL 014aaa028 time (2 s typ). sup(xfmr_ring) Figure 11 and Figure 12) ...
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... Timing diagram = SS2 SS2 is switched on as soon as V start(soft)(fb) Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC 3 FBCTRL 014aaa049 4.5 V 2.5 V restart intended output voltage reached within time-out time. 014aaa050 ...
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... Overvoltage protection (FBAUX pin) An output overvoltage protection is implemented in the GreenChip III series. This works for the TEA1750 by sensing the auxiliary voltage via the current flowing into pin FBAUX during the secondary stroke. The auxiliary winding voltage is a well-defined replica of the output voltage. Voltage spikes are averaged by an internal fi ...
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... HV current on pin FBCTRL current on pin FBAUX current on pin PFCSENSE current on pin FBSENSE current on pin FBDRIVER duty cycle < current on pin PFCDRIVER duty cycle < current on pin HV Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC t 014aaa022 Min Max Unit 0.4 +38 V 0.4 ...
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... trip V < V < V th(UVLO < V < V trip CC th(UVLO) with auxiliary supply ) CC during start-up phase V V startup th(UVLO) Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Min Max < 0.6 55 +150 40 +150 [1] - 2000 [1] - 1500 [2] - 200 - 500 resistor. Typ ...
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... V = 2.0 V VOSENSE low power mode, PFC in burst mode, lower clamp voltage upper clamp voltage V = 3.3 V; VINSENSE PFCCOMP ton(max)(PFC 0.9 V; VINSENSE PFCCOMP ton(max)(PFC) Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Min Typ Max Unit 1.2 1 0.8 mA 6.3 5.4 4.6 mA 2.25 3 3.75 mA 0.86 0.89 0. ...
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... PFC valley recognition to(vrec)PFC time-out time TEA1750_2 Product data sheet Conditions O(PFCCOMP 2.5 V VOSENSE mV 200 mV peak-to-peak PFCAUX demagnetization Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Min Typ Max Unit 0.35 0.40 0.45 V [ 1.55 1.60 1. ...
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... VCO(FBCTRL) FBCTRL TEA1750_2 Product data sheet Conditions PFCAUX PFCDRIVER PFCDRIVER PFCDRIVER FBAUX I = 500 A FBAUX I = 500 A FBAUX Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Min Typ Max Unit 150 100 0 0 ...
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... FBCTRL V = 2.6 V FBCTRL V = 4.1 V FBCTRL mV 200 mV FBDRIVER = 2 V FBDRIVER FBDRIVER V < V < V prot(LATCH) LATCH oc(LATCH) at start- en(LATCH) prot(LATCH) Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Min Typ Max Unit 1.85 2 4.2 4.5 4 1.4 1.17 0.93 mA 0.6 0.5 0.4 mA ...
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... Minimum required time between demagnetization recognition and V/ t end. [5] Guaranteed by design. 11. Application information A power supply with the TEA1750 consists of a power factor correction circuit followed by a flyback converter. See Capacitor C rectified mains during start-up and via the auxiliary winding of the flyback converter during operation ...
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... NXP Semiconductors www.datasheet4u.com COMPENSATION Fig 14. Typical application diagram of TEA1750 TEA1750_2 Product data sheet SS1 R SS1 R SENSE1 R AUX1 TEA1750T LOOP C TIMEOUT Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC C bus OUT ...
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... 0.49 0.25 10.0 4.0 1.27 0.25 0.36 0.19 9.8 3.8 0.019 0.0100 0.39 0.16 0.244 0.05 0.01 0.014 0.0075 0.38 0.15 0.228 REFERENCES JEDEC JEITA MS-012 Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control detail 6.2 1.0 0.7 1.05 0.25 0.25 0.1 5.8 0.4 0.6 0.039 ...
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... Value for T TEA1750_1 20070406 TEA1750_2 Product data sheet Data sheet status Product data sheet in Table 3 has been updated j Product data sheet Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC Change notice Supersedes - TEA1750_1 - - © NXP B.V. 2008. All rights reserved ...
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... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. GreenChip — trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com Rev. 02 — 15 December 2008 TEA1750 GreenChip III SMPS control IC © NXP B.V. 2008. All rights reserved ...
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... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2008. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 15 December 2008 TEA1750 All rights reserved. Document identifier: TEA1750_2 ...