SW, CW Series 10 to 40 Watts Single Outputs ! 9-18 Vdc inputs 18-32 Vdc inputs ! Efficiency to 80% ! Regulated output 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 INPUT 123456789012345678901234567890121234567 Voltage Range 9-18Vdc 123456789012345678901234567890121234567 123456789012345678901234567890121234567 18-32 Vdc 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 OUTPUT 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Voltage Tolerance 2% (trim adjustable) 123456789012345678901234567890121234567 Ripple and Noise 7mVRMS to 3 Amps 123456789012345678901234567890121234567 123456789012345678901234567890121234567 13 mVRMS >3 Amps 123456789012345678901234567890121234567 Overvoltage Protection Available with crowbar 123456789012345678901234567890121234567 123456789012345678901234567890121234567 add option C 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Short Circuit Protection Power Foldback 123456789012345678901234567890121234567 Trim Adjustability 10% (typ) 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Temperature Coefficient 0.02% / C 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 GENERAL 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Regulation: 123456789012345678901234567890121234567 Line 0.3% Output to 3 Amps 123456789012345678901234567890121234567 123456789012345678901234567890121234567 0.5% Output above 3 Amps 123456789012345678901234567890121234567 Load 0.3% Output to 3 Amps 123456789012345678901234567890121234567 123456789012345678901234567890121234567 0.5% Output above 3 Amps 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Efficiency 60-80% (typ) 123456789012345678901234567890121234567 I/O Isolation Not galvanically isolated 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 ENVIRONMENTAL 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Operating Temperature -25C to +71C No Derating 123456789012345678901234567890121234567 123456789012345678901234567890121234567 Storage Temperature -25C to +105C 123456789012345678901234567890121234567 Cooling Free-air Convection 123456789012345678901234567890121234567 123456789012345678901234567890121234567 123456789012345678901234567890121234567 All specifications are typical at nominal line and full load at 25C unless 123456789012345678901234567890121234567 123456789012345678901234567890121234567 otherwise noted and are subject to change without notice. 123456789012345678901234567890121234567 T he SW and CW Series are highly efficient, single output DC/DC converters. Proportional energy transfer techniques enable these encapsulated modular converters to maintain well regulated outputs despite large variations in input voltage. The 2:1 input range makes the SW and CW Series ideal for applications where the input dc power is derived from a battery, a motor generator or other types of poorly regulated power sources. Due to a high efficiency design these converters operate with no derating over the entire operating range to +71C. The output of the SW and CW Series can be trim-adjusted by user added circuitry to fine tune for optimum supply voltage Applications The SW and CW Series are designed for battery-powered or portable, spacecritical applications, as well as other applications not requiring input-output isolation. 1 SW, CW Series Ordering Information Input Voltage Range Output Voltage 9-18 Vdc 9-18 Vdc 18-32 Vdc 18-32 Vdc 9-18 Vdc 9-18 Vdc 18-32 Vdc 18 -32 Vdc 9-18 Vdc 9-18 Vdc 18-32 Vdc 18 -32 Vdc 9-18 Vdc 18-32 Vdc 9-18 Vdc 18-32 Vdc 18-32 Vdc 18-32 Vdc 18-32 Vdc 18-32 Vdc 18-32 Vdc 18-32 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 12 Vdc 12 Vdc 12 Vdc 12 Vdc 15 Vdc 15 Vdc Output Current Case 2000mA 2000mA 2000mA 2000mA 3000mA 3000mA 3000mA 3000mA 4000mA 4000mA 4000mA 4000mA 6500mA 6500mA 8000mA 8000mA 2000mA 2000mA 3500mA 3500mA 2000mA 2000mA 2 1B 3 1B 4B 1C 4B 1C 4B 1C 4B 1C 1D 1D 1D 1D 3 1C 4D 1D 3 1C Model Number Options SW11-200-12 CW11-200-12 SW11-200-24 CW11-200-24 SW11-300-12 CW11-300-12 SW11-300-24 CW11-300-24 SW11-400-12 CW11-400-12 SW11-400-24 CW11-400-24 CW11-650-12 CW11-650-24 CW11-800-12 CW11-800-24 SW12-200-24 CW12-200-24 SW12-350-24 CW12-350-24 SW13-200-24 CW13-200-24 C C C C C C C C C C C C C Dimensions and Connections Fig 2 Fig 3 Fig 1 PIN CONNECTIONS Single Output 1. +Input 2. -Input 3. +Output 4. Trim 5. Common NOTES: 1. Ripple measured with a 3.3 mf tantalum capacitor across each output. 2. Load regulation from full load to minimum load (25%). 3. External Output Trimming: Output may be externally trimmed 5%. Fig 4 2 49 Range Road Windham, NH 03087 (603) 893-2330 11/01/2001 FAX (603) 893-6280