rev. description features Designed to convert fixed voltages into isolated voltages, the VBSD1-SIP 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 1 W output ·SIP package ·unregulated ·temperature range: -40°C~+85°C ·high efficiency to 80% ·single voltage output ·small footprint ·industry standard pinout ·UL94-V0 package ·no heatsink required ·1K Vdc isolation ·power density 0.85 W/cm ·no external component required ·low cost MODEL input voltage nominal range. (V dc) (V dc) VBSD1-S3.3-S3.3-SIP VBSD1-S3.3-S5-SIP VBSD1-S5-S3.3-SIP VBSD1-S5-S5-SIP VBSD1-S5-S9-SIP VBSD1-S5-S12-SIP VBSD1-S5-S15-SIP VBSD1-S12-S3.3-SIP VBSD1-S12-S5-SIP VBSD1-S12-S9-SIP VBSD1-S12-S12-SIP VBSD1-S12-S15-SIP VBSD1-S15-S3.3-SIP VBSD1-S15-S5-SIP VBSD1-S15-S9-SIP VBSD1-S15-S12-SIP VBSD1-S15-S15-SIP VBSD1-S24-S3.3-SIP VBSD1-S24-S5-SIP VBSD1-S24-S9-SIP VBSD1-S24-S12-SIP VBSD1-S24-S15-SIP VBSD1-S24-S24-SIP 3.3 3.3 5 5 5 5 5 12 12 12 12 12 15 15 15 15 15 24 24 24 24 24 24 1 of 3 date date 10/2008 DESCRIPTION: dc-dc converter PART NUMBER: VBSD1-SIP Series The semi-regulated output can be followed by 3-terminal regulators to provide output protection, in addition to output regulation page page 3.0~3.6 3.0~3.6 4.5~5.5 4.5~5.5 4.5~5.5 4.5~5.5 4.5~5.5 10.8~13.2 10.8~13.2 10.8~13.2 10.8~13.2 10.8~13.2 13.5~16.5 13.5~16.5 13.5~16.5 13.5~16.5 13.5~16.5 21.6~26.4 21.6~26.4 21.6~26.4 21.6~26.4 21.6~26.4 21.6~26.4 output voltage max. (V dc) 3.3 5 3.3 5 9 12 15 3.3 5 9 12 15 3.3 5 9 12 15 5 5 9 12 15 24 output current max. min. (mA) (mA) 300 200 300 200 111 83 67 300 200 111 83 67 300 200 111 83 67 300 200 111 83 67 42 30 20 30 20 12 9 7 30 20 12 9 7 30 20 12 9 7 30 20 12 9 7 4 efficiency (%) UL60950-1 72 73 74 78 79 80 78 75 78 80 81 79 73 74 75 79 79 76 79 80 81 79 80 NO NO NO YES YES YES YES NO YES YES YES YES NO NO NO NO NO NO YES YES YES YES NO notes: 1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified. 2. Unbalanced load: ±5% OUTPUT parameter output power line regulation load regulation output voltage accuracy temperature drift output ripple switching frequency conditions/description for Vin change of 1% 10% to 100% full load refer to recommended circuit @ 100% load 20MHz Bandwidth 100% load, nominal input min 0.1 nom 10 50 100 max 1 ±1.2 15 units W % % 0.03 75 %/°C mVp-p KHz *V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise customers to verify the most up-todate product information before placing orders. V-Infinity assumes no liability or responsibility for customer’s applications using V-Infinity products other than repair or replacing (at V-I’s option) V-Infinity products not meeting V-I’s published specifications. Nothing will be covered outside of standard product warranty. 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 page 2 of 3 date 10/2008 DESCRIPTION: dc-dc converter PART NUMBER: VBSD1-SIP Series GENERAL SPECIFICATIONS parameter output short circuit protection temperature rise at full load cooling operating temp. range storage temp. range reflow soldering temp. storage humidity range case material safety MTBF burn-in conditions/description 1 second max. 15°C typ., 25°C max. free air convection -40°C ~ +85°C -55°C ~ +125°C 300°C (1.5mm from case for 10 seconds) ≤95% plastic (UL94-V0) approved to UL60950-1 (E222736) >3,500,000 hours full load at +85°C, for 4 hours at no-load and 4 hours at full load. ISOLATION SPECIFICATIONS parameter isolation voltage isolation resistance conditions/description flash tested for 1 minute test at 500 V dc min 1000 1000 nom max OUTLINE DIMENSIONS & RECOMMENDED LAYOUT PATTERN +0.15 0 Side View (0.1) 2.54 (0.1) 12 3 4 Bottom View Pin 1 2 3 4 1 2 3 4 -Vin +Vin -Vout + Vout Note: All Pins on a 2.54mm(0.1) pitch; All Pin diameters are 0.50 mm(0.02); Tolerances: ±0.25mm(0.01); Unit: mm(inch). TYPICAL CHARACTERISTICS Operating Temp.(oC) 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 units V dc MΩ page 3 of 3 date 10/2008 DESCRIPTION: dc-dc converter PART NUMBER: VBSD1-SIP Series - Minimum loading APPLICATION NOTES: The converter needs a minimum of 10% loading to maintain output regulation. Operation under no-load conditions will not - Input filtering To reduce the reflected ripple current and minimize EMI, cause immediate damages but may reduce reliability, and especially when the converter input is more than 2” away from cause performance not to meet specifications. the DC source, it is recommended to connect a low ESR electrolytic capacitor between Vin and Gnd. The values - Regulation suggested are as shown in Table 1. If additional filtering is With a semi-regulated design, the converter’s output voltage required, the capacitance may be increased, or expanded to varies with load current and will change proportionally to the an LC network as shown in Figure 1. input voltage. If regulated output is needed, an external regulator can be used as shown in Figure 2. TABLE 1 - Protection The converter has minimal protection against input over- Input Voltage External Input Capacitance 3.3, 5 V 4.7 μF 12 V 2.2 μF 15 V 2.2 μF 24 V 1.0 μF voltage or output over-load, and may be permanently damaged if exposed to these conditions. An input clamping device can be used for input voltage limiting. An input fuse or an output fuse also be used to protect against over-loading. - Dual outputs used as a single output The +Vout and -Vout can be used to obtain a single output that is the sum of the two outputs. In this case, the COM pin - Output filtering shouldn’t be used. An output capacitor is needed to meet output ripple requirements as shown in Table 2.Output capacitance may be - External Regulator increased for additional filtering, but should not exeed 10μF or An external 3-terminal regulator can be connected to the expanded to an LC network as in Figure 1. output of the converter to achieve full regulation. Make sure the converter’s output voltage provides sufficient head room for the regulator. An additional benefit is that the built-in TABLE 2 protection features in the regulator, such as OCP, OTP, etc, will protect the converter also. In a complimentory supply, a Vout External Ouput Capacitance 3.3, 5 V 4.7 μF 9V 2.2 μF 12 V 1.0 μF +Vin 15 V 0.47 μF -Vin 24 V 0.33 μF negative output regulator must be used to achieve the negative regulated output. +Vout REG DC DC -Vout REG +Vin +Vout DC DC L L +Vout +Vin C DC DC -Vin -Vin C -Vout <Figure 1> 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 -Vout