B1205LT-2W

ELECTRONIC COMPONENTS RSG ■ RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de www.rsg-electronic.de ■ ■ ■ ■ ■ Änderungen vorbehalten / subject to change without notice B_LT-2W Series FIXED INPUT ISOLATED & UNREGULATED 2W SINGLE OUTPUT ULTRAMINIATURE SMD PACKAGE FEATURES ● High Efficiency up to 85% ● SMD Package Style ● Single Output Voltage ● High Power Density ● Industry Standard Pin out ● No Heatsink Required ● 1KVDC Isolation ● Temperature Range: -40°C~+85°C ● No External Component Required ● Custom Service Available ● RoHS Compliance m ulti -country patent protection RoHS PRODUCT PROGRAM Part Number B0505LT-2W B0509LT-2W B0512LT-2W B0515LT-2W B1205LT-2W B1209LT-2W B1212LT-2W B1215LT-2W 12 10.8~13.2 5 4.5~5.5 Input Voltage (VDC) N ominal R ange Voltage (VDC) 5 9 12 15 5 9 12 15 Output Current (mA) Min Max 400 222 167 133 400 222 167 133 40 23 17 14 40 23 17 14 Efficiency (%, Typ) Package Style SMD SMD SMD SMD SMD SMD SMD SMD 81 82 84 84 82 83 85 85 APPLICATIONS The B_LT-2W Series are specially designed for applications where a single power supply is isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is fixed (voltage variation ≤±10%); 2) Where isolation is necessary between input and output (isolation voltage =1000VDC); 3) Where the regulation of the output voltage and the output ripple noise are not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits. COMMON SPECIFICATIONS Short circuit protection Temperature rise at full load C ooling Operating temperature range Storage temperature range Lead temperature Storage humidity range C ase material MTBF 1 second 25°C MAX, 15°C TYP Free air convection -40°C~+85°C -55°C ~+125°C 260°C ≤95% Plastic (UL94-V0) >3,500,000 hours ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance Test conditions Tested for 1 minute and 1mA max Test at 500VDC Min 1000 1000 Typ Max Units VDC MΩ MODEL SELECTION B0505LT- 2W Rated Power Package Style Output Voltage Input Voltage Product Series OUTPUT SPECIFICATIONS Item Output power Line regulation Test conditions For Vin change of 1% 10% to 100% load (3.3V,5V output) 10% to 100% load (9V output) 10% to 100% load (12V output) 10% to 100% load (15V output) Output voltage accuracy Temperature drift Output ripple N oise Switching frequency See tolerance envelope graph 100% full load 20MHz Bandwidth 20MHz Bandwidth Full load, nominal input 75 150 70 0.03 150 250 %/°C mVp-p KHz MIN 0.2 TYP MAX 2 1.2 15 15 15 15 Units W % 12.8 8.3 6.8 6.3 Load regulation % Note: 1.All specifications measured at TA=25°C, humidity220 ℃) 150 100 Vin 50 +Vo C DC DC C GND 0V 0 Tim e (s ec. ) （Figure 1） PIN CONNECTIONS Pin 1 Function GND 2 Vin 3 NC 5 NC 6 0V 8 7 + Vo N C 9 NC 10 NC 12 13 14 NC NC NC Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (Figure2). Vin +Vout REG OUTLINE DIMENSIONS& RECONMENDED FOOTPRINT DETAILS 2.7 5 (0. 11) DC DC GND 6.00 (0 . 2 4 ) 5. 75 (0.2 3) A 0.2 5 (0.01) 0 . 6±0 . 0 5 0. 0 2±0 . 0 02 0V REG 1.27 (0.05) 2.54±0.1 (0.1± 0.004) 0.25 (0.01) Vin GND +Vout DC DC 0V 14 1312 17.78±0. 25 ( 0.7±0 .01) 10 9 8 0 .50 (0. 02) (Figure2) Overload Protection 。 Under normal operating conditions, the output circuit of these products has no protection against over-current and short-circuits. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. 12.7 (0. 5) 5.00 MAX 123 567 15.24 (0.6) 17.78 (0.7) 1.30 ±0.13 (0. 05±0.005) N ote: All Pins on a 2.54mm(0.1) pitch; All Pin Widths are 0.60 mm(0.02); Tolerances:±0.15mm(0.006); Unit: mm(inch). APPLICATION NOTE Requirement on output load To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company’s products with a lower rated output power (B_T-1W series). EXTERNAL CAPACITOR TABLE Vin 5VDC 12VDC --External capacitor 4.7uF 2.2uF --Vout 5VDC 9VDC 12VDC 15VDC External capacitor 4.7uF 2.2uF 1uF 0.47uF It’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output。 A/1-2007 Page 2 of 2 MORNSUN reserves the copyright For any design change and upgrade, we will not make any prior notification