DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 MINIATURE, 1-W, 3-kV ISOLATED UNREGULATED DC/DC CONVERTERS FEATURES 1 • • • • • 2 DESCRIPTION Up To 78% Efficiency 3-kVDC Isolation UL60950 Certified Product Industry Standard Footprint JEDEC SIP-7 Package The DCH01 series is a family of miniature, 1-W, 3-kV isolated DC/DC converters. Featured in an industry standard SIP-7 footprint, the DCH01 series requires minimal external components, reducing board space. The DCH01 series provides both single and dual split-supply outputs. APPLICATIONS • • • • • Point-of-Use Power Conversion Ground Loop Elimination Data Acquisition Industrial Control and Instrumentation Test Equipment™ The use of a highly integrated package design results in highly reliable products with high power densities. High performance and small size makes the DCH01 suitable for a wide range of applications including signal chain applications and ground loop elimination. Single Output Block Diagram +VO +VI -VI Power Controller -VO Dual Output Block Diagram +VO +VI -VI Power Controller COM -VO 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Test Equipment is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006–2009, Texas Instruments Incorporated DCH01 Series SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI website at www.ti.com. Part Numbering Scheme PRODUCT LINE POWER DCH 01 INPUT VOLTAGE H = 3 kV, unregulated output 01 = 1 W OUTPUT VOLTAGE SINGLE/DUAL PIN CONFIG PACKAGE 05 05 S N 7 05 = 5 V 05 = 5 V S = Single N = SIP Thru-hole 7 = SIP-7 12 =12 V D = Dual TRANSPORT MEDIA Blank = Tray T = Tape & Reel 15 = 15 V DCH01 Products MODEL INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT POWER (W) ISOLATION VOLTAGE (kVDC) PACKAGE-LEAD DCH010505S 5 ± 10% 5 200 1 3 SIP-7 DCH010512S 5 ± 10% 12 83 1 3 SIP-7 DCH010515S 5 ± 10% 15 67 1 3 SIP-7 DCH010505D 5 ± 10% ±5 ±100 1 3 SIP-7 DCH010512D 5 ± 10% ±12 ±42 1 3 SIP-7 DCH010515D 5 ± 10% ±15 ±33 1 3 SIP-7 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) Input Voltage 5V input models Wave soldering temperature Surface temperature of module body or pins for 5 seconds maximum Storage temperature range (1) 2 DCH01 SERIES UNIT 7 V 260 °C –55 to +125 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ELECTRICAL CHARACTERISTICS At TA = +25°C, VI = 5V unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUTPUT Power 1 (1) 100% full load Over current duration (1) W 1 sec 10 % INPUT Voltage range on VI –10 ISOLATION Voltage 100% tested for 1 second 3.5 kVDC LINE Regulation 1% change in VI 1% SWITCHING Switching frequency (fSW) 70 kHz RELIABILITY Calculated Per Telcordia SR-332; 50% stress; TA = +40C Single Output 18 Dual Output 22 FITS TEMPERATURE RANGE Operating (1) –40 +85 °C This converter does not have continuous over-current protection. ELECTRICAL CHARACTERISTICS PER DEVICE At TA = +25°C, VI = 5V unless otherwise noted. INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) VI VNOM LOAD REGULATION (%) OUTPUT RIPPLE (1) (mVPP) NO LOAD INPUT CURRENT (mA) EFFICIENCY (%) IQ BARRIER CAPACITANCE (pF) CISO NOMINAL 100% LOAD (2) 10% TO 100% LOAD (3) 100% LOAD (2) 0% LOAD 100% LOAD (2) TYP TYP TYP TYP TYP TYP TYP DCH010505S 5 5.1 10 35 60 72 3 DCH010505D 5 ±5.2 9 20 60 72 3 DCH010512S 5 12.4 6 18 65 74 4 DCH010512D 5 ±12.5 5 19 65 75 4 DCH010515S 5 15.2 6 31 65 75 3 DCH010515D 5 ±15.3 5 22 65 76 3 PRODUCT (1) (2) (3) 20MHz bandwidth. 100% load current = 1W/VNOM typ. Load Regulation = (VO at 10% load - VO at 100% load) / VO at 100% load. Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series 3 DCH01 Series SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com DEVICE INFORMATION EDJ PACKAGE SIP-7 (Single) (Top View) EDJ PACKAGE SIP-7 (Dual) (Top View) DCH01 1 2 DCH01 5 7 1 Pin Description (Single) 5 6 TERMINAL DESCRIPTION NAME +VI 1 Voltage input +VI 1 Voltage input –VI 2 Input side common –VI 2 Input side common –VO 5 –Voltage out –VO 5 –Voltage out +VO 7 +Voltage out COM 6 Output side common +VO 7 +Voltage out 4 7 Pin Descriptions (Dual) TERMINAL NAME 2 NO. Submit Documentation Feedback NO. DESCRIPTION Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 TYPICAL CHARACTERISTICS At TA = +25°C, and VIN = 5V unless otherwise noted. DCH010505D EFFICIENCY 80 80 70 70 60 60 Efficiency (%) Efficiency (%) DCH010505S EFFICIENCY 50 40 30 50 40 30 Output 2 Load Current 20 20 10 10 0 0 100mA 50mA 10mA 0 40 80 120 160 200 0 20 40 60 80 IO, Load Current (mA) Output 1 Load Current (mA) Figure 1. Figure 2. DCH010505S LOAD REGULATION DCH010505D LOAD REGULATION 5.7 5.8 5.6 5.7 100 VO, Output Voltage (V) VO, Output Voltage (V) Output 2 Load Current 5.5 5.4 5.3 5.2 5.1 100mA 50mA 10mA 5.6 5.5 5.4 5.3 5.2 5.0 5.1 0 40 80 120 160 200 0 20 40 60 80 IO, Load Current (mA) Output 1 Load Current (mA) Figure 3. Figure 4. DCH010505S RIPPLE VOLTAGE DCH010505D RIPPLE VOLTAGE 50 100 30 Output Voltage Ripple (mVPP) Output Voltage Ripple (mVPP) Output 2 Load Current 40 30 20 10 0 100mA 50mA 10mA 25 20 15 10 5 0 0 40 80 120 160 200 0 20 40 60 IO, Load Current (mA) Output 1 Load Current (mA) Figure 5. Figure 6. 80 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series 100 5 DCH01 Series SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, and VIN = 5V unless otherwise noted. DCH010512D EFFICIENCY 80 80 70 70 60 60 Efficiency (%) Efficiency (%) DCH010512S EFFICIENCY 50 40 30 50 40 30 Output 2 Load Current 20 20 10 10 0 0 42mA 21mA 4mA 0 15 30 45 60 75 90 0 5 10 15 20 25 30 IO, Load Current (mA) Output 1 Load Current (mA) Figure 7. Figure 8. DCH010512S LOAD REGULATION DCH010512D LOAD REGULATION 13.2 35 40 45 13.2 Output 2 Load Current VO, Output Voltage (V) VO, Output Voltage (V) 13.0 12.8 12.6 12.4 13.1 42mA 13.0 21mA 4mA 12.9 12.8 12.7 12.6 12.5 12.4 12.2 12.3 0 15 30 45 60 75 90 0 10 15 20 25 30 Output 1 Load Current (mA) Figure 9. Figure 10. DCH010512S RIPPLE VOLTAGE DCH010512D RIPPLE VOLTAGE 50 35 40 45 20 Output Voltage Ripple (mVPP) Output Voltage Ripple (mVPP) 5 IO, Load Current (mA) 40 30 20 16 12 8 Output 2 Load Current 4 42mA 21mA 4mA 10 0 0 6 15 30 45 60 75 90 0 5 10 15 20 25 30 IO, Load Current (mA) Output 1 Load Current (mA) Figure 11. Figure 12. Submit Documentation Feedback 35 40 45 Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, and VIN = 5V unless otherwise noted. DCH010515D EFFICIENCY 80 80 70 70 60 60 Efficiency (%) Efficiency (%) DCH010515S EFFICIENCY 50 40 30 50 40 30 Output 2 Load Current 20 20 10 10 0 0 33mA 17mA 3mA 0 15 30 45 60 75 0 5 10 15 20 25 IO, Load Current (mA) Output 1 Load Current (mA) Figure 13. Figure 14. DCH010515S LOAD REGULATION DCH010515D LOAD REGULATION 16.5 30 35 30 35 16.1 16.0 VO, Output Voltage (V) VO, Output Voltage (V) 16.2 15.9 15.6 15.3 15.9 15.8 15.7 15.6 15.5 15.4 Output 2 Load Current 33mA 15.3 17mA 15.2 3mA 15.0 15.1 0 15 30 45 60 75 0 10 15 20 25 Output 1 Load Current (mA) Figure 15. Figure 16. DCH010515S RIPPLE VOLTAGE DCH010515D RIPPLE VOLTAGE 50 25 Output Voltage Ripple (mVPP) Output Voltage Ripple (mVPP) 5 IO, Load Current (mA) 45 40 35 30 25 20 Output 2 Load Current 33mA 17mA 20 3mA 15 10 5 0 15 30 45 60 75 0 5 10 15 20 25 IO, Load Current (mA) Output 1 Load Current (mA) Figure 17. Figure 18. 30 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series 35 7 DCH01 Series SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, and VIN = 5V unless otherwise noted. SAFE OPERATING AREA (All DCH0105 Products) 90 Natural Convection Ambient Temperature (°C) 80 70 60 50 40 30 20 0 20 40 60 80 100 Load Current (%) Figure 19. 8 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 FUNCTIONAL DESCRIPTION ISOLATION VOLTAGE The DCH01 series of DC/DC converters are 100% production tested at 3.5 kVDC for 1 second. The isolation test voltage represents an operational isolation to transient voltages and should not be relied upon for safety isolation. The continuous voltage that can be applied across the DCH01 during normal operation must be < 60 VDC, within SELV limits. Repeated High-Voltage Isolation Testing Repeated high-voltage isolation testing can degrade the isolation capability of the DCH01. APPLICATION INFORMATION OPTIONAL INPUT/OUTPUT FILTERS DCH01 power modules include internal input and output ceramic capacitors in all their designs. However, some applications require much lower levels of either input reflected or output ripple/noise. This application note describes various filters and design techniques found to be successful in reducing both input and output ripple/noise. INPUT/OUTPUT CAPACITORS The easiest way to reduce output ripple and noise is to add one or more ceramic capacitors each with a value of 4.7-µF or greater. Ceramic capacitors should be placed close to the output power terminals. A single 4.7-µF ceramic capacitor reduces the output ripple/noise by 10% to 30%. Switching regulators draw current from the input line in pulses at their operating frequency. The amount of reflected (input) ripple/noise generated is directly proportional to the equivalent source impedance of the power source including the impedance of any input lines. The addition of a 4.7-µF ceramic capacitor, near the input power pins, reduces reflected conducted ripple/noise by 30% to 50%. The recommended capacitve load on the output of the DCH01 is 100 µF. 1 mH to 5 mH 1 mH to 5 mH +VIN +VIN 4.7 mF Ceramic 2.2 mF Ceramic -VIN +VOUT DCH01xxxxSN7 -VIN 1 mF 4.7 mF COM UDG-08077 Figure 20. DCH01 Series π Filter Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series 9 DCH01 Series SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com 1 mH to 5 mH 1 mH to 5 mH +VIN +VIN 4.7 mF Ceramic +VOUT +VOUT 4.7 mF 1 mF 2.2 mF Ceramic DCH01xxxxDN7 COM 1 mH to 5 mH -VIN -VIN -VOUT 1 mF 4.7 mF -VOUT UDG-08076 Figure 21. DCH01 Series π Filter (5 V at 1 W) π FILTERS If a further reduction in ripple/noise level is required for an application, higher order filters must be used. A π (pi) filter, employing a ferrite bead inductor in series with the input or output terminals of the regulator reduces the ripple/noise by at least 20 db (see Figure 20 and Figure 21). Ceramic capacitors are required for the inductor to be effective in reduction of ripple and noise. These inductors plus ceramic capacitors form an excellent filter because of the rejection at the switching frequency. The placement of this filter is critical. It must be located as close as possible to the input or output pins to be efffective. The ferrite bead is small (12,5 mm x 3 mm), easy to use, low cost, and has low dc resistance. Fair-Rite manufactures a surface-mount bead (part number 2773021447) or through hole (part number 2673000701) rated to 5 A. Inductors with a value between 1 µH and 5 µH can be used in place of the ferrite bead inductor. DCH01 START-UP Start-up waveforms. VIN 5V/div VO 5V/div IIN 100mA/div Figure 22. Startup Waveforms 10 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series DCH01 Series www.ti.com........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 CONNECTING THE DCH01 IN SERIES It is possible to connect the outputs of multiple DCH01s in series to provide non-standard voltage rails. The outputs of dual output DCH01 versions can also be connected in series to provide 2 × the magnitude of VO, as shown in Figure 23. For example, a dual 5-V DCH01 could be connected to provide a 10-V rail. +10 V +VIN +VIN DCH01xxxxDN7 -VIN +VOUT +VOUT -VIN COM GND -VOUT UDG-08075 Figure 23. Connecting Dual Outputs in Series CONNECTING THE DCH01 IN PARALLEL If the output power from one DCH01 is not sufficient, it is possible to parallel the outputs of multiple DCH01s, as shown in Figure 24. +VIN +VOUT +VIN +VOUT DCH01xxxxSN7 -VIN -VIN COM +VIN +VIN +VOUT DCH01xxxxSN7 -VIN -VIN COM UDG-08073 Figure 24. Connecting Multiple DCH01s in Parallel Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated Product Folder Link(s): DCH01 Series 11 PACKAGE OPTION ADDENDUM www.ti.com 6-Jan-2009 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty DCH010505DN7 ACTIVE SIP MOD ULE EDJ 5 70 Pb-Free (RoHS) Call TI N / A for Pkg Type DCH010505SN7 ACTIVE SIP MOD ULE EDJ 4 70 Pb-Free (RoHS) Call TI N / A for Pkg Type DCH010512DN7 ACTIVE SIP MOD ULE EDJ 5 70 Pb-Free (RoHS) Call TI N / A for Pkg Type DCH010512SN7 ACTIVE SIP MOD ULE EDJ 4 70 Pb-Free (RoHS) Call TI N / A for Pkg Type DCH010515DN7 ACTIVE SIP MOD ULE EDJ 5 70 Pb-Free (RoHS) Call TI N / A for Pkg Type DCH010515SN7 ACTIVE SIP MOD ULE EDJ 4 70 Pb-Free (RoHS) Call TI N / A for Pkg Type Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. 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