1/3 VFSD2-DIP Series DC-DC Converter Rev. 06-2006 Description Features Designed to convert fixed voltages into an isolated voltage, the VFSD2-DIP series is well suited for providing board-mount local supplies in a wide range of applications, including mixed analog/digital circuits, test & measurement equip., process/machine controls, datacom/telecom fields, etc... ·Isolated 2 W output ·Temperature range: -40°C~+85°C ·Unregulated ·High efficiency to 81% ·Single voltage output ·Small footprint ·DIP package style ·Industry standard pinout ·UL94-V0 package ·No heatsink required ·3K Vdc isolation ·Power density 1.42 W/cm³ ·No external component required ·Low cost The semi-regulated output can be followed by 3-terminal regulators to provide output protection, in addition to output regulation. Model Number VFSD2-S5-S5-DIP VFSD2-S5-S9-DIP VFSD2-S5-S12-DIP VFSD2-S5-S15-DIP VFSD2-S12-S5-DIP VFSD2-S12-S9-DIP VFSD2-S12-S12-DIP VFSD2-S12-S15-DIP VFSD2-S24-S5-DIP VFSD2-S24-S9-DIP VFSD2-S24-S12-DIP VFSD2-S24-S15-DIP Input Voltage Nominal Range 5 Vdc 4.5~5.5 Vdc 5 Vdc 4.5~5.5 Vdc 5 Vdc 4.5~5.5 Vdc 5 Vdc 4.5~5.5 Vdc 12 Vdc 10.8~13.2 Vdc 12 Vdc 10.8~13.2 Vdc 12 Vdc 10.8~13.2 Vdc 12 Vdc 10.8~13.2 Vdc 24 Vdc 21.6~26.4 Vdc 24 Vdc 21.6~26.4 Vdc 24 Vdc 21.6~26.4 Vdc 24 Vdc 21.6~26.4 Vdc Output Voltage 5 Vdc 9 Vdc 12 Vdc 15 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc Output Current Max. Min. 400 mA 40 mA 222 mA 22.2 mA 167 mA 16.7 mA 133 mA 13.3 mA 400 mA 400 mA 222 mA 22.2 mA 167 mA 16.7 mA 133 mA 13.3 mA 400 mA 40 mA 222 mA 22.2 mA 167 mA 16.7 mA 133 mA 13.3 mA Efficiency 80% 81% 82% 84% 80% 83% 84% 85% 81% 84% 85% 86% Package Style DIP DIP DIP DIP DIP DIP DIP DIP DIP DIP DIP DIP Output Specifications Item Output power Line Regulation Load Regulation Output voltage accuracy Temperature drift Output ripple Switching frequency Test conditions For Vin change of 1% 10% to 100% full load See tolerance envelope graph 100% load 20 MHz Bandwidth Full load, nominal input V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 Min. 0.2 Typ. 10 Max. 2 1.2 15 Units W % % 75 75 0.03 150 100 %/°C mVp-p KHz www.v-infinity.com 1-866-372-1258 2/3 VFSD2-DIP Series DC-DC Converter Rev. 06-2006 General Specifications Short circuit protection 1 second Temperature rise at full load 25°C Max, 15°C Typ. Cooling Free air convection Operating temperature range -40°C to +85°C Storage temperature range -55°C to +125°C Soldering temperature 300°C (1.5mm from case for 10 sec.) Storage humidity range <95% Case material Plastic (UL94-V0) Safety approved to UL60950 (E222736) MTBF >3,500,000 hrs. Burn-in Full load at +85°C, for 4 hours at no-load and 4 hours at full load. Isolation Specifications Item Isolation Voltage Insulation Resistance Test Conditions Tested for 1 min. Test at 500 Vdc Min. 3000 1000 Typ. Max. Units Vdc MΩ Note: 1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified. Typical Characteristics Ambient Temperature ( C ) Outline Dimensions & Recommended Layout Pattern Side View Pin 1 7 8 10 14 -Vin NC +Vout -Vout +Vin Bottom View 7 1 14 10 14 8 1 7 8 Note: All Pins on a 2.54mm pitch; All Pin diameters are 0 50 mm; all dimensions in mm V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258 3/3 VFSD2-DIP Series DC-DC Converter Rev. 06-2006 - Minimum loading Application Notes: The converter needs a minimum of 10% loading to maintain output regulation. Operation under no-load - Input filtering To reduce the reflected ripple current and minimize conditions will not cause immediate damages but EMI, especially when the converter input is more may reduce reliability, and cause performance not to than 2” away from the DC source, it is recommended meet specifications. to connect a low ESR electrolytic capacitor between Vin and Gnd. The values suggested are as shown in - Regulation Table 1. If additional filtering is required, the With a semi-regulated design, the converter’s output capacitance may be increased, or expanded to an LC voltage varies with load current and will change network as shown in Figure 1. proportionally to the input voltage. If regulated output is needed, an external regulator can be used Table 1 as shown in Figure 2. - Protection Input Voltage External Input Capacitance 5V 4.7 µF over-voltage or output over-load, and may be 12 V 2.2 µF permanently damaged if exposed to these conditions. 24 V 1.0 µF The converter has minimal protection against input An input clamping device can be used for input voltage limiting. An input fuse or an output fuse can also be used to protect against over-loading. - Output filtering - External Regulator An output capacitor is needed to meet output ripple An external 3-terminal regulator can be connected requirements as shown in Table 2. to the output of the converter to achieve full Output capacitance may be increased for additional regulation. Make sure the converter’s output voltage filtering, but should not exeed 10µF or expanded to provides sufficient head room for the regulator. An an LC network as in Figure 1. additional benefit is that the built-in protection features in the regulator, such as OCP, OTP, etc, will Table 2 protect the converter also. In a complimentory supply, a negative output regulator must be used to achieve the negative regulated output. Vout External Ouput Capacitance 5V 4.7 µF 9V 2.2 µF +Vin 12 V 1.0 µF -Vin 15 V 0.47 µF +Vout REG DC DC -Vout REG +Vin -Vin DC DC -Vout L L +Vout +Vin C +Vout DC DC -Vin C -Vout <Figure 1> V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258