ssl1750 NXP Semiconductors, ssl1750 Datasheet
ssl1750
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ssl1750 Summary of contents
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... SMPS control IC for LED drivers Rev. 01 — 15 September 2008 1. General description The SSL1750 is a Switched Mode Power Supply (SMPS) controller IC, suitable for driving LED applications from 250 W. For LED power requirements below 25 W the SSL152x family and SSL1623PH are the best choice. ...
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... General purpose input for latched protection, e. used for system OverTemperature Protection (OTP) 3. Applications The device can be used in all SSL applications that require an efficient and cost-effective LED power supply solution up to 250 W. Key applications for the SSL1750 are: • Indoor LED applications (> 25 W): – Spot lights – Down lights – ...
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... VoBURST LOW VoBURST HIGH VALLEY DETECT TIMER 4 s OTP PFCGATE ZCS CHANGE TIMER 50 s 100 Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers 13 FB DRIVER 80 A DRV FB GATE EXT PROT 1.25 V PROT R 2 FREQ ENABLEFB S RED. ...
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... FBCTRL 3 4 FBAUX SSL1750T LATCH 5 PFCCOMP 6 VINSENSE 7 8 PFCAUX Pin configuration for SSL1750T (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 7.1 General control The SSL1750 contains a controller for a power factor correction circuit as well as a controller for a flyback circuit. The SSL1750 as LED driver can be used as current source to drive LEDs directly, as shown in AC/DC converter to drive multiple DC/DC LED drivers as shown in Fig 3. Application circuit ...
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... If during start-up pin LATCH does not reach the V V th(UVLO) SSL1750_1 Product data sheet Typical configuration of SSL1750 is charged from the high voltage mains via pin HV below V , the charge current is low. This protects the IC in case pin CC trip reaches th(UVLO) ...
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... FBCTRL reaches the V assumed. The SSL1750 then initiates a safe restart. When one of the protection functions is activated, both converters stop switching and the ...
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... STARTING CAPACITOR CONVERTERS Start-up sequence, normal operation, and restart sequence Rev. 01 — 15 September 2008 SMPS control IC for LED drivers soft start soft start NORMAL PROTECTION RESTART OPERATION on the pin LATCH (typical 80 A). O(LATCH) SSL1750 V startup V th(UVLO) V trip V start(VINSENSE) V en(LATCH) V to(FBCTRL) V start(fb) 014aaa060 © ...
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... Section 7.2.8). 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 Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers to drop to this reset CC CC Section 7.1.4. control. The resulting mains harmonic on © ...
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... Mains Harmonic Reduction (MHR) requirements may be hard to meet. To compensate for the mains input voltage influence, the SSL1750 contains a correction circuit. Via pin VINSENSE the average input voltage is measured and the information is fed to an internal compensation circuit ...
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... Section 7.2.5). As soon as the voltage on pin VOSENSE the soft-stop circuit is activated, again to avoid audible noise. During the burst(H) voltage is well below the V reg(VOSENSE) . bus Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers 60 A SOFT START SOFT STOP CONTROL OCP + 0.5 V 014aaa018 Section 7.3) is low, the fl ...
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... Rev. 01 — 15 September 2008 SMPS control IC for LED drivers V burst(H) V burst(L) soft-start ton control soft-stop 014aaa019 level, switching of the ovp(VOSENSE) level again. ovp(VOSENSE) level. This protects the circuit from open loop and SSL1750 © NXP B.V. 2008. All rights reserved ...
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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 SSL1750 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 3. High frequency operation makes small and cost-effective Rev. 01 — 15 September 2008 SMPS control IC for LED drivers PFC on discontinuous with valley switching quasi resonant V FBCTRL 014aaa026 Equation 2 SSL1750 (2) is the d (3) © NXP B.V. 2008. All rights reserved ...
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... FBCTRL. SSL1750_1 Product data sheet primary secondary stroke stroke drain valley secondary stroke oscillator Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers secondary ringing (2) (1) 014aaa027 © NXP B.V. 2008. All rights reserved ...
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... SSL1750_1 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 Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers PFC on flyback discontinuous or QR 1.4 V 1 FBCTRL 014aaa028 sup(xfmr_ring) Figure 12 and Figure © ...
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... V 2.5 V restart intended output voltage reached within time-out time. 014aaa050 R start(soft)(fb) SS2 and C . See Equation SS2 SS2 reaches V CC level and the voltage on pin FBSENSE has start(fb) SSL1750 with a 4. (4) . When the startup © NXP B.V. 2008. All rights reserved ...
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... IC stops switching and enters the safe restart mode. 7.3.8 Overvoltage protection (pin FBAUX) An output overvoltage protection is implemented in this IC. This works for the SSL1750 by sensing the auxiliary voltage via the current flowing into pin FBAUX during the secondary stroke. The auxiliary winding voltage is a well-defi ...
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... VOSENSE voltage on pin PFCAUX voltage on current limited pin FBSENSE voltage on current limited pin PFCSENSE voltage on pin HV current on pin FBCTRL current on pin FBAUX current on pin PFCSENSE Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers t 014aaa022 Min Max Unit 0.4 + 0.4 ...
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... Rev. 01 — 15 September 2008 SMPS control IC for LED drivers Min 1 0.8 0 [1] - [ resistor. Typ 124 Min Typ - 1 < V startup - 5 650 - SSL1750 Max Unit + 0.6 W +150 C +150 C 2000 V 1500 V 200 V 500 V Unit K/W Max Unit - ...
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... V is detected start(VINSENSE VOSENSE O(PFCCOMP 3.3 V VOSENSE V = 2.0 V VOSENSE low power mode, PFC in burst mode, lower clamp voltage upper clamp voltage Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Min Typ 0.55 0. 300 6.3 7 < 1 ...
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... V = 0.9 V, VINSENSE PFCCOMP ton(max)(PFC O(PFCCOMP 2.5 V VOSENSE mV 200 mV peak-peak PFCAUX demagnetization Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Min Typ Max Unit 3.6 4.5 5 0.35 0.40 0.45 V [ ...
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... V; all voltages are measured with respect to ground (pin 2); currents are CC Conditions PFCAUX PFCDRIVER PFCDRIVER PFCDRIVER FBAUX = 500 A FBAUX I = 500 A FBAUX Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Min Typ Max Unit 150 100 0 0.7 ...
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... V FBCTRL V = 2.6 V FBCTRL V = 4.1 V FBCTRL mV 200 mV FBDRIVER FBDRIVER FBDRIVER < V < V prot(LATCH) LATCH at start- en(LATCH) prot(LATCH) Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Min Typ Max 1.85 2.0 2.15 - 2.5 - 4.2 4.5 4 1.4 1.17 0.6 0 34.5 28 +75 [5] ...
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... Minimum required time between demagnetization recognition and V/ t end. [5] Guaranteed by design. SSL1750_1 Product data sheet = 20 V; all voltages are measured with respect to ground (pin 2); currents are CC Conditions Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Min Typ Max Unit 130 140 150 ...
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... detail 6.2 1.0 0.7 1.05 0.25 0.25 5.8 0.4 0.6 0.039 0.028 0.041 0.01 0.01 0.016 0.020 EUROPEAN PROJECTION SSL1750 SOT109 ( 0.7 0 0.028 0.004 0.012 ISSUE DATE 99-12-27 03-02-19 © NXP B.V. 2008. All rights reserved ...
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... NXP Semiconductors 12. Revision history Table 6. Revision history Document ID Release date SSL1750_1 20080915 SSL1750_1 Product data sheet Data sheet status Change notice Product data sheet - Rev. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers Supersedes - © NXP B.V. 2008. All rights reserved ...
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... 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. 01 — 15 September 2008 SSL1750 SMPS control IC for LED drivers © 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 SSL1750 All rights reserved. Date of release: 15 September 2008 Document identifier: SSL1750_1 ...