YF SERIES T O 20 WATTS UP TO 20 WATTS - YF SERIES ULTRA-WIDE INPUT, LOW QUIESCENT CURRENT FEATURES • • • • • • • • Single and Dual Outputs Industry Standard Package and Pin-Out Pi Input Filter Integral to Converter 1600VDC I/O Isolation Regulated Output Continuous short circuit protection Remote On/Off Feature Ten Year Warranty THE YF SERIES FROM WALL INDUSTRIES The YF series of single and dual output DC/DC converters performs over an ultra-wide input voltage range (2:1 & 4:1), providing indefinite short circuit and overvoltage protection. The series’ design technology allows 20 watts of output power from a 1.60” x 2.0” x 0.40” case. These current mode control forward converters are designed for improved transient response and reduced stress on switching components and do not require external input filtering,making it a preferred source over industry alternatives. Ripple/Noise (20MHz BW) .................. 75mV P-P SPECIFICATIONS: YF SERIES All specifications apply @ +25 C ambient unless otherwise Transient Response <500msec to within ±1% Vout noted. INPUT SPECIFICATIONS GENERAL SPECIFICATIONS Input Voltages............18-36,36-75,9-36,20-75,18-75VDC Nominal Input..................................................24, 48VDC Remote On/Off Control..........CMOS or TTL (see note 7) Input Filter......................................................Pi input filter OUTPUT SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Output Current...................................................see table Output Voltage Tolerance..........................................±2% Output Trim (external)..............................................±10% Line Regulation: full line.........................................±0.5% Line Regulation: 20 Watt 4:1 Input...........................................................................±1% Load Regulation Singles (25-100% load)..........................±0.5% (NL-100% load) ........................................±1% Duals (50-100% load) ..............................±1% (NL-100% load) ........................................±5% Short Circuit Protection....................................continuous 1 Efficiency ..............................................83% typical Isolation Voltage (input to output) ..1600VDC min. Isolation Resistance (input to output) ......1000MW Switching Frequency ......................300kHz typical Operating Temperature (case) ........-25 to +105°C Storage Temperature ......................-55 to +125°C Humidity (non-condensing) ..............20 - 95% R.H. PHYSICAL SPECIFICATIONS Weight ............................................approx. 4.0 oz. Dimensions ..................................1.6 x 2.0 x 0.40” Case Material ......................Nickel coated copper, ......................................non-conductive baseplate Shielding..................................................Six-Sided Due to advances in technology, specifications subject to change without notice. 603 778 2300 W W W.WALLINDUSTRIES.C O M YF SERIES T O 20 WATTS Input Voltage (VDC) Output Voltage (VDC) Output Over Model Current Voltage Number (Amps) Protection (VDC) 9-18 18-36 36-75 9-36 20-75 9-36 18-75 3.3 4.0 3.9 YF12S33-4000 5 4.0 6.2 YF12S5-4000 12 1.67 15 YF12S12-1600 15 1.33 18 YF12S15-1330 ± 12 3.3 0.83 4.0 15 3.9 YF12D12-830 YF24S33-4000 5 4.0 6.2 12 1.67 15 1.33 ± 12 PIN CONNECTIONS Single Dual 1 + Vin + Vin 2 - Vin - Vin YF24S5-4000 3 Remote Remote 15 YF24S12-1600 4 No Pin + Vout 18 YF24S15-1330 5 + Vout Output Common 0.83 15 YF24D12-830 ± 15 0.66 18 YF24D15-660 6 - Vout - Vout ± 15 0.66 18 YF12D15-660 7 Trim Trim 3.3 4.0 3.9 YF48S33-4000 5 4.0 6.2 YF48S5-4000 12 1.67 15 YF48S12-1600 15 1.33 18 YF48S15-1330 5 3.0 6.2 YFW24S5-3000 12 1.25 15 YFW24S12-1250 15 1.0 18 YFW24S15-1000 ±5 1.50 6.2 YFW24D5-1500 ± 12 0.62 15 YF24D12-625 ± 15 0.50 18 YFW24D15-500 5 3.0 6.2 YFW48S5-3000 12 1.25 15 YFW48S12-1250 15 1.0 18 YFW48S15-1000 ±5 1.50 6.2 YFW48D5-1500 ± 12 0.83 15 YF48D12-830 ±15 5 0.66 4.0 18 6.2 YF48D15-660 YFW24S5-4000 12 1.66 15 YFW24S12-1600 15 1.33 18 YFW24S15-1330 ±5 1.50 6.2 YFW24D5-1500 ± 12 0.83 15 YFW24D12-830 ± 15 5 0.66 4.0 18 6.2 YFW24D15-660 YFW48S5-4000 12 1.66 15 YFW48S12-1600 15 1.33 18 YFW48S15-1300 ±12 0.83 15 YFW48D12-830 ±15 0.66 18 YFW48D15-660 W W W.WALLINDUSTRIES.C O M NOTES: 1. All case and pin to case dimensions reference only unless otherwise noted. 2. All DC/DC converters should be externally fused on the front end for protection. 3. P.C. pins - 0.04” dia. x 0.18” long (min); typical seven places 4. Pin to pin tolerance ± 0.01”. Pin diameter tolerance ± 0.005” 5. Duals: 1/4 load to full load: (1% and no load to full load: ±5%. 6. Significant capacitive load on output may inhibit start-up and operation, consult factory. 7. On-control: 5.5V min. or Open. Off-Control: 0.4V max. or short. Control voltage referenced to -VIn. 8. Input pi-filter without external capacitor filter. 603 778 2300 2 YF SERIES 3 T O 20 WATTS 603 778 2300 W W W.WALLINDUSTRIES.C O M