PXC05-Dual Output Series: DC/DC Converter Module 9 to 75 Vdc input, 3.3 to 15 Vdc Dual Outputs, 5W

Transcription

1 PXC05-Dual Output Series: DC/DC Converter Module 9 to 75 input, 3.3 to 15 Dual Outputs, 5W UL UL TUV EN CB IEC CE MARK Features Low profile: 1.25 x 0.80 x 0.40 inches (32.0 x 20.3 x 10.2mm) 4 : 1wide input voltage range 5 Watts output power Input to output isolation: 1600, min Operating case temperature range :100 max ISO 9001 certified manufacturing facilities UL Recognized TUV CB CE Mark Applications Distributed power architectures Communication equipment Computer equipment - Test equipment Option Choice of SMD type General Description The PXC05 series offers 5 watts of output power from a 24pin DIP configuration package without derating to 71ºC ambient temperature. This series has a 4:1 ultra wide input voltage of 9-36 and 18-75VDC. The PXC05 features 1600VDC of isolation, short-circuit protection and five sided shielding. All models are particularly suited to telecommunications, industrial, mobile telecom and test equipment applications.

2 Operating Output Range Output Specifications Parameter Device Min Typ Max Unit xxwd05 xxwd12 xxwd Line Regulation(LL to HL at Full Load) All 0.2 % Load Regulation(25% to 100% Full Load) All 1 % Output Ripple & Noise, 20MHz bandwidth All 50 mvp-p Temperature Coefficient All %/ Transient Response Recovery Time (25% load step change) Output Current Output Over Current Protection Output Capacitor Load All 200 μs xxwd05 xxwd12 xxwd15 xxwd05 xxwd12 xxwd15 xxwd05 xxwd12 xxwd ±500 ±230 ±190 ±680 ±100 ±68 ma ma ma ma ma ma μf μf μf Input voltage range Input reflected ripple current (see testing configurations) Start up time Input Specifications Parameter Device Min Typ Max Unit (nominal vin and constant resistive load power up) 24WDxx 48WDxx All 20 ma p-p All 450 ms V V 2

3 Efficiency Test at Vin, nom and full load (see testing configurations) General Specifications Parameter Device Min Typ Max Unit 24WD05 24WD12 24WD15 48WD05 48WD12 48WD15 Isolation resistance All 10 9 Ω Isolation Capacitance All 300 pf I/O Isolation voltage Input to output Input (Output) to Case Input (Output) to Case Switching Frequency(Test at Vin, nom and full load) All 300 KHz Weight All DIP SMD DIP 16 SMD MTBF (see the MTBF and reliability) All hours % % % % % % g g Input Voltage Operating temperature range Absolute Maximum Rating Parameter Device Min Typ Max Unit Continuous Transient (100ms) (Operating temperature will be depended De-rating curve) 24WDxx 48WDxx 24WDxx 48WDxx Standard Operating case range All 100 Storage temperature All

4 Thermal Consideration The power module operates in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat is removed by conduction, convention, and radiation to the surrounding environment. Proper cooling can be verified by measuring the case temperature. The case temperature (Tc) should be measured at the position indicated In right figure. PXC05-xxWDxx The temperature at this location should not exceed 100. When 0.40 (10.15) operating, adequate cooling must be provided to maintain the power (15.9) module case Temperature at or below 100. Although the maximum case temperature of the power modules is 100, limiting this temperature to a lower value may increase the reliability. Optimum Measure case cooling is obtained with forced convention. Some typical Thermal Temperature here Resistance numbers are tabulated below: Thermal resistance vs. air flow chart Air flow rate Natural Convention Typical θca 20.0 /W These numbers are typical only. The natural convention data was recorded with the case of the unit mounted on a vertical plane. The forced convention data was recorded with the airflow parallel to the top of the case. 4

5 Following are de-rating curve for PXC05-12WD15, PXC05-24WD05, PXC05-48WD PXC05-12WD Output Power(%) Nature convection Ambient Temperature( ) 120 PXC05-24WD Output Power(%) Nature convection Ambient Temperature( ) 120 PXC05-48WD Output Power(%) Nature convection Ambient Temperature( ) 5

6 Output over current protection When excessive output currents occur in the system, circuit protection is required on all power supplies. Normally, overload current is maintained at approximately 170% typical percent of rated current for PXC05. We used the fold back current limiting method in PXC05 over current protection. Fold back current protection reduces the load current when the over current fault occurs. The figure below shows the typical curve. Because of the current fold back, the worst power dissipation is at point s. The drawback is that it provides less current at start up, hence the output rises slower, or the power supply may not start up at all if the load current during start up is larger than the fold back current. Vout S (Iout, max, Pi, max) Iocp Pi (Input Power) Continuous, auto-recovery mode. Short Circuit Protection During short circuit, the converter shuts down. The average current during this condition will be very low.. Solder, clearing, and drying considerations Soldering Flow soldering : 260±10 less than 15 seconds Soldering iron : 370±10 less than 5 seconds Note: The pin of this module is coated with Tin. To assure the solder-ability, modules should be kept in their original shipping containers to provide adequate protection. The storage environment should be well controlled to help protect against oxidation. 6

7 Efficiency Characteristic Curve a. Efficiency with load change under different line condition at room temperature PXC05-12WD pd(w) Vin 12Vin 18Vin lout(ma ) PXC05-24WD05 Eff(%) Vin 24Vin 36Vin lout(ma ) PXC05-48WD Eff(%) Vi n 48Vi n lout(ma ) 7

8 b. Efficiency with line change under different load condition at room temperature PXC05-12WD Eff(%) mA 95mA 190mA Vin(V) PXC05-24WD Eff(%) mA 250mA 500mA Vin(V) PXC05-48WD Eff(%) mA 95mA 190mA V 40V 44V 48V 52V 56V 60V 64V 68V 75V Vin(V) 8

9 c. Power dissipation curve PXC05-12WD pd(w) Vin 12Vin 18Vin lout(ma ) PXC05-24WD pd(w) Vin 24Vin 36Vin lout(ma ) PXC05-48WD pd(w) Vin 48Vin 75Vin lout(ma ) 9

10 Output ripple & noise PXC05-12WD15 +15V=13.6mV 15V=12.8mV +15V=12.8mV -15V=14.8.0mV +15V=12.0mV -15V=16.8mV PXC05-24WD05 +5V=23.2mV 5V=33.6mV +5V=22.0mV -5V=32.0mV +5V=20.8mV -5V=29.2mV PXC05-48WD15 +15V=11.6mV 15V=15.6mV +15V=11.2mV -15V=16.4mV +15V=10.8mV -15V=16.8mV 10

11 Transient Peak and Response PXC05-12WD15 Transient Peak 87.0mV Transient Peak 84.0mV Transient Peak 83.0mV Transient Response 102uS Transient Response 102uS Transient Response 100uS PXC05-24WD05 Transient Peak 150mV Transient Peak 147mV Transient Peak 161mV Transient Response 100uS Transient Response 94uS Transient Response 90uS PXC05-48WD15 Transient Peak 88mV Transient Peak 83mV Transient Peak 94mV Transient Response 124uS Transient Response 124uS Transient Response122uS 11

12 Inrush Current PXC05-12WD15 Inrush current=(58.8/10) x200ma=1176ma Inrush current=(46.2/10) x200ma=924ma Inrush current=(30.6/10) X200mA=612mA Duration: 920uS Duration: 440uS Duration: 840uS PXC05-24WD05 Inrush current=(61.0/10) X100mA=610mA Inrush current=(47.8/10) x100ma=478ma Inrush current=(33.0/10) x100ma=330ma Duration: 680uS Duration: 640uS Duration: 520uS PXC05-48WD15 Inrush current=(52.4/10) X50mA=262mA Inrush current=(34.4/10) x50ma=172ma Inrush current=(28.8/10) x50ma=144ma Duration: 880uS Duration:560uS Duration: 360uS 12

13 Input Ripple Current PXC05-12WD15 Ripple current=(11.2/10) x10=11.2ma Ripple current=(12.2/10) x10=12.2ma Ripple current=(16.6/10) x10=16.6ma PXC05-24WD05 Ripple current=(15.6/10) x10=15.6ma Ripple current=(17.4/10) x10=17.4ma Ripple current=(19.2/10) x10=19.2ma PXC05-48WD15 Ripple current=(12.0/10) x10=12.0ma Ripple current=(12.6/10) x10=12.6ma Ripple current=(12.4/10) x10=12.4ma 13

14 Delay Time and Rise Time PXC05-12WD15 Normal Line, Full Load Rise Time=876..5uS Normal Line, Full Load Delay Time=945.2mS PXC05-24WD05 Normal Line, Full Load Rise Time=602.6uS Normal Line, Full Load Delay Time= 50.4mS PXC05-48WD15 Normal Line, Full Load Rise Time=1.777mS Normal Line, Full Load Delay Time=28.8mS 14

15 Input reflected-ripple current Measurement Test up Testing Configurations To Oscilloscope Current Probe 12uH Vi (+) Battery 47uF/100V DC/DC Converter Vi (-) Peak-to-peak output ripple & noise Measurement Test up Output Voltage and Efficiency Measurement Test up Note: All measurements are taken at the module terminals. Vo I o, max η = 100% Vi, nominal I i 15

16 EN ESD EN RS EN EFT EN Surge EN CS Installation method EMC Consideration Contact discharge Air discharge level test voltage(kv) level test voltage(kv) 1 ±2 1 ±2 2 ±4 2 ±4 3 ±6 3 ±8 4 ±8 4 ±15 level test field strength(v/m) level open circuit output test voltage ±10% power line 1 ±0.5KV 2 ±1.0KV 3 ±2.0KV 4 ±4.0KV level open circuit output test voltage ±10% 1 ±0.5KV 2 ±1.0KV 3 ±2.0KV 4 ±4.0KV level voltage level(emf) 1 1V/rms 2 3V/rms 3 10V/rms The unit can be mounted in any direction. Position them with proper intervals to allow enough air ventilation. Ambient temperature around each power supply should not exceed the temperature range shown in de-rating curve. Avoid placing the DC input line pattern layout underneath the unit because it will increase the line-conducted noise. Make sure to leave an ample distance between the line pattern layout and the unit. Avoid placing the DC output line pattern layout underneath the unit because it may increase the output noise. Lay out the pattern away from the unit. Part Number Structure PXC WD 12 Total Output power 5Watt Input Voltage Range 24WDXX: 9~36V 48WDXX: 18~75V Dual Output Output Voltage 05 : 5V 12: 12V 15 : 15V 16

17 Dimensions are in millimeters and (inches) Tolerances: xxx in. ± in. (x.x mm ± 0.5mm) xxx in. ± in. (x.x mm ± 0.5mm) Pin Pitch Tolerance ±0.014(0.35) Mechanical Data Top View Side View Pin size is 0.02(0.5) Dia or 0.01 x 0.02 (0.25 x 0.50) Rectangular Pin 0.18(4.6) V i + PXC05-xxWDxx COM 1.25 (31.8) BOTTOM VIEW (17.8) 0.20 (5.1) 0.60(15.2) 0.15 (3.8) 0.40 (10.2) DIP PIN CONNECTION PIN DUAL PIN DUAL 2 -INPUT 23 +INPUT 3 -INPUT 22 +INPUT 9 COMMON 16 COMMON 10 NC 15 NC 11 -OUTPUT 14 +OUTPUT Top View Side View V i + PXC05-xxWDxx COM Pin Area 0.04 x 0.02 (1.0 x 0.5) 0.02(0.5) 1.00(25.4) 0.92(23.4) BOTTOM 5 VIEW (20.3) 0.25 (6.35) 0.15 (3.81) 0.10 (2.54) 0.44(11.2) 0.43(10.9) 1.26 (32.0) SMD PIN CONNECTION PIN FUNCTION PIN FUNCTION 2 -INPUT 23 +INPUT 3 -INPUT 22 +INPUT 9 COMMON 16 COMMON 10 NC 15 NC 11 -OUTPUT 14 +OUTPUT Others NC Others NC 17

18 Safety and Installation Instruction Isolation consideration The PXC05-WD series features 1.6k Volt DC isolation from input to output, input to case, and output to case. The input to output resistance is greater than 10 9 megohms. Nevertheless, if the system using the power module needs safety agency approval, certain rules must be followed in the design of the system using the model. In particular, all of the creepage and clearance requirements of the end-use safety requirement must be observed. These documents include UL , EN and CSA , although specific applications may have other or additional requirements. Fusing Consideration Caution: This power module is not internally fused. An input line fuse must always be used. This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part of sophisticated power architecture. To maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a normal-blow fuse with maximum rating of 6.3 A. Based on the information provided in this data sheet on Inrush energy and maximum dc input current; the same type of fuse with lower rating can be used. Refer to the fuse manufacturer s data for further information. MTBF and Reliability The MTBF of PXC05-WD series of DC/DC converters has been calculated using 1. MIL-HDBK-217F under the following conditions: Nominal Input Voltage Io = Io, max Ta = 25 The resulting figure for MTBF is hours. 2. Bellcore TR-NWT Case I: 50% stress, Operating Temperature at 40 (Ground fixed and controlled environment) The resulting figure for MTBF is hours. 18