NXP TEA1993TS GreenChip synchronous rectifier controller User Guide
NXP TEA1993TS is a dedicated flyback controller IC for synchronous rectification on the secondary side of flyback converters. It incorporates a high-performance sensing stage and driver stage for driving an external synchronous rectification (SR) MOSFET. The TEA1993TS can generate its own supply or operate with an external voltage making it suitable for a wide range of applications, including battery chargers, auxiliary power supplies, and multiple output voltage applications.
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UM10963
TEA1993DB1357 synchronous rectifier controller demo board Rev. 1 — 8 April 2016 User manual
Document information Info Content Keywords Abstract
TEA1993DB1357, TEA1993TS, flyback converter, Synchronous Rectifier (SR) driver, TSOP-6, high efficiency, power supply, demo board This user manual describes the TEA1993DB1357 demo board. The TEA1993DB1357 demo board can be connected to a flyback converter.
The TEA1993DB1357 demo board contains a TEA1993TS SR controller in a TSOP-6 package. Additionally, the TEA1993DB1357 demo board contains two possible options to place power MOSFETs. It replaces the secondary rectification part of the flyback converter.
NXP Semiconductors Revision history Rev Date
v.1
20160408
Description
first issue
UM10963 TEA1993DB1357 synchronous rectifier controller demo board
Contact information
For more information, please visit:
http://www.nxp.com
For sales office addresses, please send an email to:
UM10963
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
2 of 15
NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board
1. Introduction
WARNING Lethal voltage and fire ignition hazard
The non-insulated high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only. It shall be operated in a designated test area by personnel qualified according to local requirements and labor laws to work with non-insulated mains voltages and high-voltage circuits. This product shall never be operated unattended.
This document describes the TEA1993DB1357 demo board. A functional description is provided, including instructions about how to connect the board, for the best results and performance. The TEA1993DB1357 demo board contains the secondary part of a single output flyback converter, excluding the output capacitors and the feedback control hardware. To use the TEA1993DB1357 demo board correctly, a flyback converter board in which the demo board can replace the secondary rectifier part is required.
The board application is AC mains voltage powered. Avoid touching the board while it is connected to the mains voltage and when it is in operation. An isolated housing is obligatory when used in uncontrolled, non-laboratory environments. Galvanic isolation from the mains phase using a fixed or variable transformer is always recommended.
shows the symbols on how to recognize these devices.
019aab173
Fig 1.
a. Isolated
Isolation symbols
b. Not isolated
019aab174
UM10963
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board
The TEA1993DB1357 demo board incorporates the TEA1993TS in TSOP-6 package and a MOSFET in LFPAK with a typical R DSon of 4.8 m .
Figure 2 shows the front side and
back side of the TEA1993DB1357 demo board. The TEA1993DB1357 demo board is a single layer board, which includes plated-through vias for external connections and the TO-220 MOSFET.
Fig 2.
a. Front side
TEA1993DB1357 demo board photographs
b. Back side UM10963
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
4 of 15
NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board
4. TEA1993TS SR controller
The TEA1993TS is a dedicated controller IC for synchronous rectification on the secondary side of flyback converters. It incorporates the sensing stage and driver stage for driving the SR MOSFET which rectifies the output of the secondary transformer winding.
The TEA1993TS can generate its own supply voltage or operate with an external applied voltage. The self-supply function is intended for:
• • •
Battery charging applications with a 2 V (USB BC) output voltage Applications with high-side rectification without an auxiliary winding multiple output voltage applications with or without auxiliary winding &$3 *1'
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Fig 3.
DDD
Pin configuration TEA1993TS (TSOP6)
*$7( UM10963
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 8 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
5 of 15
NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board 5.1 Connected at low-side SR
The TEA1993DB1357 demo board is incorporated in an existing flyback power supply.
shows the connection of the TEA1993DB1357 demo board to the secondary side of a flyback controller board as low-side SR.
9 RXW !9
9 RXW !9
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(1) Supply via DRAIN pin (2 V to 4 V) (2) Supply via V out (> 4 V)
Fig 4.
a. Including Constant Current (CC) mode (1) Supply via V out (> 4 V) b. Constant Voltage (CV) mode only
TEA1993DB1357 demo board configuration with low-side rectification
DDD
(a) shows the configuration for SR low-side applications that include CC mode (e.g. USB BC specification for an operation between 2 V and 5 V). When V out 4.7 V, the TEA1993TS uses the voltage on the XV pin as supply. The resulting voltage on the CAP pin is typically 0.7 V below the voltage on the XV pin. It is used as supply voltage for the gate drive output to the external MOSFET.
When V out < 4.7 V (CC mode), the TEA1993TS uses the pulsed voltage on the drain input to generate the voltage for the CAP pin. When 0 V (b) shows the configuration for SR low-side application for CV mode only. V out must be 4 V. In this case, the CAP pin can be connected directly to the XV pin. The result of connecting the CAP pin directly to the XV pin is 0.7 V additional gate drive voltage compared to the configuration in Figure 4 (a). The additional gate drive voltage drives the external MOSFET to a lower R DSon to achieve the best efficiency. The maximum gate drive voltage is limited to 12 V. Maximum voltage ratings for TEA1993TS pins: • • Pins XV and CAP: 38 V Pin DRAIN: 120 V UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 6 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board 5.2 Connected at high-side SR shows the connection of the TEA1993DB1357 demo board to the secondary side of a flyback controller board as high-side SR. 9 RXW !9 9 RXW !9 ;9 '5$,1 *$7( 7($76 6285&( &$3 *1' ;9 '5$,1 *$7( 7($76 6285&( &$3 *1' DDD Fig 5. a. Self-supply via the DRAIN input (> 2 V) b. Supply via auxiliary winding TEA1993DB1357 demo board configuration with high-side rectification DDD (a) shows the configuration for SR high-side applications with self-supply. In this case, the TEA1993TS retrieves its supply from the pulsed voltage on the DRAIN input. The regulator inside the TEA1993TS converts these pulses to an approximately 9 V regulated DC voltage. If the XV pin is connected to the IC ground, the TEA1993TS generates 9 V. This voltage is present on the CAP pin. It is the reference voltage for the gate drive of the external MOSFET. (b) shows the configuration for SR high-side application which is supplied by an additional auxiliary winding. This configuration can deliver the best possible efficiency for high-side application. If, in a multiple-outputs application, the auxiliary voltage drops below the 4 V for the lower output voltages, the TEA1993TS generates its own supply voltage. It maintains a minimum supply of 4 V on the CAP pin. The auxiliary voltage can then be optimized for the higher output voltages. In this way, maximum efficiency at maximum power is achieved. Maximum voltage ratings for TEA1993TS pins: • • Pins XV and CAP: 38 V Pin DRAIN: 120 V UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 7 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board & Q) 9 QP 5 ȍ QP ( $:* '5$,1 '5$,1 4QP 3601536 4 %8.<5( '5$,1 8 6285&( *$7( 7($7 6285&( 5 ȍ 5 ȍ QP &$3 *1' ;9 & S) 9 &$3 ;9 & Q) 9 ' %$6 QP ( $:* 6( ( $:* ;9 FRQQHFWZLUHWR 65VXSSO\IRU KLJKVLGHPRGH FRQQHFWZLUHWR 9 RXW VXSSO\IRU ORZVLGHPRGH -3 0&/ &$%*6 MXPSHU3 PPZKDQGOH -3 0&/ &$%*6 MXPSHU3 PPZKDQGOH Fig 6. ( $:* 6285&( n.m. = not mounted w. handle = with handle TEA1993DB1357 demo board schematic DDD shows the schematic diagram of the TEA1993DB1357 demo board. The board incorporates the TEA1993TS SR controller and a power MOSFET. The TEA1993TS acts as a controlled amplifier. The input is the voltage difference between the DRAIN and the SOURCE pin. The corresponding gate driver signal is the output. The amplifier regulates the source-to-drain voltage difference to 35 mV in the rectification phase. To facilitate easy layout design for a single-sided board, resistors R1 and R2 are added. They must be between 0 and 10 . For the fastest turn-off time, use the lowest value. By default, the LFPAK MOSFET Q1 is mounted with a 0 gate resistor (R1). It is also possible to mount a TO220 MOSFET Q2 with gate resistor R2. Capacitors C1 and C2 are decoupling capacitors for the V CC of the TEA1993TS. Connect these capacitors close to the IC. To ensure sufficient charge power during the secondary stroke to drive the external MOSFET, a value of 100 nF is used for capacitor C2. To prevent unwanted oscillation of the V CC supply, capacitor C1 is added. A provision is made for snubber R3/C3. The components are not mounted. However, if high-voltage spikes occur on the drain-source connections of the MOSFETs, they can be added. To facilitate optimal configurations for either the low-side or the high-side connection, jumpers JP1 and JP2 are added (see the diagrams in Section 5 ). UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 8 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Table 1. Reference C1; C2 C3 TEA1993DB1357 demo board BOM Description and values capacitor; 100 pF; 50 V; 0805 capacitor; not mounted; 10 nF; 100 V; 0805 D1 JP1; JP2 diode; not mounted; SOD323 header; straight; 1 2-way MCL1; MCL2 jumper; with handle; P = 2.54 mm R1 resistor; 0 ; 1206 R2 R3 resistor; not mounted; 0 ; 1206 resistor; not mounted; 10 ; 0805 Q1 U1 MOSFET; LFPAK SR controller; TEA1993TS - Part number BAS316 22-28-4020 CAB 9 GS BUK9Y4R8-60E TSOP-6 - Manufacturer NXP Semiconductors Molex Fischer NXP Semiconductors NXP Semiconductors UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 9 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Fig 7. a. Front side TEA1993DB1357 demo board layout b. Back side Some important guidelines for a good layout: • • • Keep the trace from the DRAIN pin to the MOSFET drain as short as possible Keep the trace from the SOURCE pin to the MOSFET source as short as possible Keep the area of the loop from the DRAIN pin, to the MOSFET drain, to the MOSFET source, and to the SOURCE pin as small as possible. Make sure that the overlap of this loop over the power drain track or the power source track is as small as possible. Take care that the two loops do not cross each other. • • Keep the track from the GATE pin to the gate of the MOSFET as short as possible Use separate clean tracks for the XV and the GND pins. If possible, use a small ground plane underneath the IC, which improves the heat dispersion. UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 10 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Table 2. Extract from the NXP Semiconductors power MOSFET selection guide Type number PSMN2R4-30MLD Package name LFPAK33 V DS(max) 30 (V) R DSon(max) at V GS = 10 V (m ) 2.4 I D(max) 70 (A) PSMN1R0-30YLD PSMN1R0-40YLD PSMN1R4-40YLD PSMN1R5-40ES LFPAK56 LFPAK56 LFPAK56 I2PAK 30 40 40 40 1.02 1.1 1.4 1.6 100 100 100 120 PSMN1R5-40PS PSMN1R6-40YLC PSMN1R8-40YLC PSMN1R9-40PL PSMN2R1-40PL PSMN2R2-40PS PSMN2R6-40YS PSMN2R8-40PS TO-220AB LFPAK56 LFPAK56 TO-220AB TO-220AB TO-220AB LFPAK56 TO-220AB 40 40 40 40 40 40 40 40 1.6 1.55 1.8 1.7 2.2 2.1 2.8 2.8 150 100 100 150 150 100 100 100 PSMN3R3-40YS PSMN4R0-40YS PSMN4R5-40PS PSMN5R8-40YS PSMN8R0-40PS PSMN8R3-40YS PSMN2R0-60ES PSMN2R0-60PS PSMN2R5-60PL PSMN2R6-60PS PSMN3R0-60ES PSMN3R0-60PS PSMN3R3-60PL PSMN3R9-60PS PSMN4R2-60PL PSMN4R6-60PS PSMN5R5-60YS PSMN7R0-60YS PSMN7R6-60PS PSMN8R5-60YS PSMN3R3-80ES PSMN3R3-80PS PSMN3R5-80ES PSMN3R5-80PS LFPAK56 LFPAK56 TO-220AB LFPAK56 TO-220AB LFPAK56 I2PAK TO-220AB TO-220AB TO-220AB I2PAK TO-220AB TO-220AB TO-220AB TO-220AB TO-220AB LFPAK56 LFPAK56 TO-220AB LFPAK56 I2PAK TO-220AB I2PAK TO-220AB 40 40 40 40 40 40 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 80 80 3.3 4.2 4.6 5.7 7.6 8.6 2.2 2.2 2.6 2.6 3 3 3.4 3.9 3.9 4.6 5.2 6.4 7.8 8 3.3 3.3 3.5 3.5 100 89 92 76 120 120 120 120 100 100 100 90 77 70 120 120 150 150 100 100 130 130 130 100 Q GD (typical; nC) 5.6 11 17 13 32 32 15.3 10.9 40.9 29.6 25 14 17 11.2 7 8.8 7.8 3.8 4.5 32 32 41.2 43.7 28 28 31 33 27 14.8 11.2 9.6 10.6 7.7 27 27 27 27 Q G(tot) (typical; nC) 16 38 59 45 136 136 59 63 71 49 38 45 230 168.9 110 35 28.8 17 20 137 137 223 140 130 130 175 103 151 70.8 56 45 38.7 39 139 139 139 139 UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 11 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Table 2. Extract from the NXP Semiconductors power MOSFET selection guide …continued Type number Package name V DS(max) (V) R DSon(max) (m ) at V GS = 10 V I D(max) (A) Q GD (typical; nC) PSMN4R3-80ES PSMN4R3-80PS I2PAK TO-220AB 80 80 4.3 4.3 120 120 28 28.4 PSMN4R4-80PS PSMN5R0-80PS PSMN6R5-80PS PSMN8R2-80YS TO-220AB TO-220AB TO-220AB LFPAK56 80 80 80 80 4.1 4.7 6.9 8.5 100 100 100 82 25 21 16 12 PSMN8R7-80PS PSMN4R3-100ES PSMN4R3-100PS PSMN5R0-100ES PSMN5R0-100PS PSMN5R6-100PS PSMN7R0-100ES PSMN7R0-100PS TO-220AB I2PAK TO-220AB I2PAK TO-220AB TO-220AB I2PAK TO-220AB 80 100 100 100 100 100 100 100 8.7 4.3 4.3 5 5 5.6 6.8 6.8 90 120 120 120 120 100 100 100 11 49 49 49 49 43 36 36 PSMN8R5-100ES PSMN8R5-100PS PSMN6R3-120ES PSMN6R3-120PS PSMN7R8-120ES PSMN7R8-120PS I2PAK TO-220AB I2PAK TO-220AB I2PAK TO-220AB 100 100 120 120 120 120 8.5 8.5 6.7 6.7 7.9 7.9 100 100 70 70 70 70 33 33 61.9 61.9 50.5 50.5 Q G(tot) (typical; nC) 111 111 112 87 71 55 52 170 170 170 170 141 125 125 111 111 207.1 207.1 167 167 UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 12 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Table 3. Acronym SR Abbreviations Description Synchronous Rectifier MOSFET CC CV Metal-Oxide-Semiconductor Field-Effect Transistor Constant Current Constant Voltage [1] TEA1993TS data sheet — GreenChip synchronous rectifier controller; 2015, NXP Semiconductors UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 13 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board 12.1 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 12.2 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Evaluation products — This product is provided on an “as is” and “with all faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of non-infringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer. In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages. Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer’s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose. Safety of high-voltage evaluation products — The non-insulated high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only. It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non-insulated mains voltages and high-voltage circuits. The product does not comply with IEC 60950 based national or regional safety standards. NXP Semiconductors does not accept any liability for damages incurred due to inappropriate use of this product or related to non-insulated high voltages. Any use of this product is at customer’s own risk and liability. The customer shall fully indemnify and hold harmless NXP Semiconductors from any liability, damages and claims resulting from the use of the product. Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. 12.3 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. GreenChip — is a trademark of NXP B.V. UM10963 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 8 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 14 of 15 NXP Semiconductors UM10963 TEA1993DB1357 synchronous rectifier controller demo board Board photographs . . . . . . . . . . . . . . . . . . . . . . 4 TEA1993TS SR controller . . . . . . . . . . . . . . . . . 5 TEA1993DB1357 demo board setup . . . . . . . . 6 Connected at low-side SR . . . . . . . . . . . . . . . . 6 Connected at high-side SR. . . . . . . . . . . . . . . . 7 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Bill Of Materials (BOM) . . . . . . . . . . . . . . . . . . . 9 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Legal information. . . . . . . . . . . . . . . . . . . . . . . 14 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP Semiconductors N.V. 2016. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 8 April 2016 Document identifier: UM109636. Schematic
7. Bill Of Materials (BOM)
8. Layout
9. NXP Semiconductors power MOSFETs
10. Abbreviations
11. References
12. Legal information
13. Contents
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