DC/DC Converters THD 12 Series, 12 Watt Features High power density DIP-24 metal package Wide 2:1 input range Very high efcfi iency up to 88% I/O isolation 1500V Input filter to meet EN 55022, class A Remote On/Off Under voltage lock-out circuit Shielded metal case with insulated Baseplate Continuous short-circuit protection Operating temp. range 40C to +85C The THD-12 series is a range of high performance, isolated 12W dc/dc convert- (with derating) ers. They come in a low prolefi , DIP-24 package with standard industry pin-out. Lead free design, RoHS compliant Overload and overvoltage protection as well as remote On/Off are included as standard. Built-in filters for both input and output minimizes the need of external 3-year product warranty lfitering. Full SMD-design with exclusive use of ceramic capacitors guarantees a high reliability and long product lifetime. Typical applications for these converters are industrial electronics, instrumentation, data communication systems and battery operated equipment with limited space available on the PCB. Models Order code Input voltage range Output voltage Output current max. Efficiency typ. THD 12-1209 2.5 VDC 3500 mA 82 % THD 12-1210 3.3 VDC 3500 mA 84 % THD 12-1211 9 18 VDC 5.1 VDC 2400 mA 86 % THD 12-1212 (nominal 12 VDC) 12 VDC 1000 mA 86 % THD 12-1222 12 VDC 500 mA 87 % THD 12-1223 15 VDC 400 mA 87 % THD 12-2409 2.5 VDC 3500 mA 83 % THD 12-2410 3.3 VDC 3500 mA 85 % THD 12-2411 18 36 VDC 5.1 VDC 2400 mA 87 % THD 12-2412 (nominal 24 VDC) 12 VDC 1000 mA 87 % THD 12-2422 12 VDC 500 mA 88 % THD 12-2423 15 VDC 400 mA 88 % THD 12-4809 2.5 VDC 3500 mA 83 % THD 12-4810 3.3 VDC 3500 mA 85 % THD 12-4811 36 75 VDC 5.1 VDC 2400 mA 87 % THD 12-4812 (nominal 48 VDC) 12 VDC 1000 mA 87 % THD 12-4822 12 VDC 500 mA 88 % THD 12-4823 15 VDC 400 mA 88 % DC/DC Converters THD 12 Series 12 Watt Input Specifications Input current (no load) 12 Vin 2.5/ 3.3 / 5.1 Vout models: 55 mA typ. 12 Vin other models: 20 mA typ. 24 Vin 2.5/ 3.3 / 5.1 Vout models: 35 mA typ. 24 Vin other models: 15 mA typ. 48 Vin 2.5/ 3.3 / 5.1 Vout models: 20 mA typ. 24 Vin other models: 6 mA typ. Input current (full load) 12 Vin 2.5 Vout models: 935 mA typ. 12 Vin other models: 1250 mA typ. 24 Vin 2.5 Vout models: 460 mA typ. 24 Vin other models: 600 mA typ. 48 Vin 2.5 Vout models: 230 mA typ. 48 Vin other models: 300 mA typ. Start-up voltage 12 Vin models: 9 VDC (or lower) 24 Vin models: 18 VDC (or lower) 48 Vin models: 36 VDC (or lower) Under voltage shut down (lock-out circuit) 12 Vin models: 8 VDC typ. 24 Vin models: 16 VDC typ. 48 Vin models: 33 VDC typ. Surge voltage (100 msec. max.) 12 Vin models: 36 V max. 24 Vin models: 50 V max. 48 Vin models: 100 V max. Conducted noise (input) EN 55022 level A, FCC part 15, level A with external capacitor, see application note: www.tracopower.com/products/thd12-application.pdf ESD (electrostatic discharge) EN 61000-4-2, air 8 kV, contact 6 kV, perf. criteria A Radiated immunity EN 61000-4-3 10 V/m, perf. criteriy A Fast transient / Surge EN 61000-4-4, 2 kV, perf. criteria A EN 61000-4-5, 1 kV perf. criteria A with external input capacitor e.g. Nippon chemi-con KY 220 F, 100 V, ESR 48 mOhm Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A Reflected ripple current 20 mAp-p typ. Output Specifications Voltage set accuracy 1.2 % Regulation Input variation single output models: 0.2 % max. (Vin min. to Vin max) dual output models: 0.5 % max. (Vin min. to Vin max) Load variation 0 100 % 0.5 % max. (1.0% max. for 2.5 Vout models) dual output models balanced load: 1.0 % max. Load cross regulation 25/100% 5.0 % max. (dual output models) Minimum load not required Ripple and noise (20 MHz Bandwidth) 85 mVp-p typ. Temperature coefficient 0.02 %/K Output current limitation 150 % typ. of Iout max. Short circuit protection continuous, automatic recovery Start up time (nominal Vin and constant resistive load) 450 ms typ. Transient response setting time (25% load step change) 250 s Over voltage protection (single output models only) 2.5 & 3.3 VDC models: 3.9 VDC 5.1 VDC models: 6.2 VDC 12 VDC models: 15 VDC 15 VDC models: 18 VDC Capacitive load 2.5/ 3.3/ 5.1 Vout models: 2000 F max. 12 Vout models: 430 F max. 12 Vout models: 200 F max. 15 Vout models: 120 F max. All specicfi ations valid at nominal input voltage, full load and +25C after warm-up time unless otherwise stated.