rev. page 1 of 5 date 10/2007 DESCRIPTION: DC/DC converter PART NUMBER: VCD40 series features ·40W isolated output ·efficiency to 90% ·fixed 350 KHz switching frequency ·2:1 input range ·regulated outputs ·continuous short circuit protection ·six sided metal case ·2” x 2” size ·industry standard pin-out model 4 number VCD40-D12-S2R5 VCD40-D12-S3R3 VCD40-D12-S5 VCD40-D12-S12 VCD40-D12-S15 VCD40-D12-D12 VCD40-D12-D15 VCD40-D12-T312 VCD40-D12-T315 VCD40-D12-T512 VCD40-D12-T515 VCD40-D24-S3R3 VCD40-D24-S5 VCD40-D24-S12 VCD40-D24-S15 VCD40-D24-D12 VCD40-D24-D15 VCD40-D24-T312 VCD40-D24-T315 VCD40-D24-T512 VCD40-D24-T515 VCD40-D48-S3R3 VCD40-D48-S5 VCD40-D48-S12 VCD40-D48-S15 VCD40-D48-D12 VCD40-D48-D15 input voltage 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 18-36 VDC 36-75 VDC 36-75 VDC 36-75 VDC 36-75 VDC 36-75 VDC 36-75 VDC output voltage 2.5 VDC 3.3 VDC 5 VDC 12 VDC 15 VDC ±12 VDC ±15 VDC 3.3/±12V 3.3/±15V 5.0/±12V 5.0/±15V 3.3 VDC 5 VDC 12 VDC 15 VDC ±12 VDC ±15 VDC 3.3/±12 V 3.3/±15 V 5.0/±12 V 5.0/±15 V 3.3 VDC 5 VDC 12 VDC 15 VDC ±12 VDC ±15 VDC VCD40-D48-T312 VCD40-D48-T315 VCD40-D48-T512 VCD40-D48-T515 36-75 36-75 36-75 36-75 3.3/±12 3.3/±15 5.0/±12 5.0/±15 VDC VDC VDC VDC V V V V output current 10000 mA 10000 mA 8000 mA 3333 mA 2666 mA 1800 mA 1400 mA 6A/±0.4A 6A/±0.3A 6A/±0.4A 6A/±0.3A 8000 mA 8000 mA 3333 mA 2666 mA 1800 mA 1400 mA 6A/±0.4 mA 6A/±0.3 mA 6A/±0.4 mA 6A/±0.3 mA 8000 mA 8000 mA 3333 mA 2666 mA 1800 mA 1400 mA 6A/±0.4A 6A/±0.3A 6A/±0.4A 6A/±0.3A input current no load full load 200mA 2422mA 200mA 3161mA 200mA 3745mA 200mA 3703mA 200mA 3702mA 100mA 4186mA 100mA 4070mA 200mA 2917mA 200mA 2857mA 200mA 3837mA 200mA 3779mA 100 mA 1325 mA 100 mA 1961 mA 100 mA 2048 mA 100 mA 1985 mA 100 mA 2069 mA 100 mA 2011 mA 100 mA 1441 mA 100 mA 1412 mA 100 mA 1897 mA 100 mA 1868 mA 50 mA 655 mA 50 mA 969 mA 50 mA 1000 mA 50 mA 992 mA 50 mA 1034 mA 50 mA 1006 mA 50 50 50 50 mA mA mA mA 712 698 938 923 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 mA mA mA mA efficiency 86% 87% 89% 90% 90% 86% 86% 84% 84% 86% 86% 87% 89% 88% 89% 87% 87% 85% 85% 87% 87% 82% 90% 89% 89% 87% 87% 86% 86% 88% 88% rev. page 2 of 5 date 10/2007 DESCRIPTION: DC/DC converter PART NUMBER: VCD40 series INPUT input voltage range under voltage lockout 12V: 24V: 48V: 12 Vin 12 Vin 24 Vin 24 Vin 48 Vin 48 Vin power power power power power power up down up down up down input filter 9-18V 18-36V 36-72V 8.8 V 8.0 V 17 V 16 V 34 V 32 V Pi type Output voltage accuracy single / dual output triple: main auxiliary transient response: 75-100% step load change error band recovery time output voltage adjustment range ripple & noise 20MHz BW 2.5 V & 3.3 V & 5 V 12 V & 15 V temperature coefficient line regulation 1 single/dual triple...main auxiliary load regulation 2 single/dual triple...main auxiliary over-voltage protection 3.3 V 5 V 12 V 15 V output current limit % nom. output short circuit protection continuous ±1.5% max. ±1.5% max. ±5.0% max. ±5% Vout nominal <300 μS 90-110% 20 mV RMS, max., 50 mV pk-pk, max. 20 mV RMS, max., 75 mV pk-pk, max. ±0.02%/°C ±0.5% max. ±1.0% max. ±5.0% max. ±0.5% / ±1.0% max. ±2.0% max. ±5.0% max. 3.6 V 6.2 V 15 V 18 V 110-140% 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 rev. PART NUMBER: VCD40 series DESCRIPTION: DC/DC converter GENERAL SPECIFICATIONS efficiency isolation voltage Isolation Resistance switching frequency case grounding operating temp. range 5 case temp. 5 storage temp. thermal shutdown cooling EMI/RFI dimensions weight case material (input to output) see table 1500VDC min. 10 9 Ohm min. 350KHz, typical connected to output common -40°C to 85°C 100°C max. -55°C to 125°C case temp. 110°C typ. free-air convection six sided continuous shield 2x2x0.4 inches (50.8x50.8x10.2mm) 65 g black coated copper with non-conductive base NOTES: 1. measured from high line to low line 2. measured from full load to 10% load 3. logic compatibility CMOS or open collector TTL, ref. to -Vin module ON >3.5 VDC to 75 VDC or open circuit module OFF <1.8 VDC 4. suffix “N” to the model number with negative logic remote ON/OFF module ON <1.8 VDC module OFF >3.5 VDC to 75 VDC or open circuit 5. ± sense if ±sense is not being used the +sense should be connected to +Vout and the -sense should be connected to the -Vout 6. maximum case temperature under any operating condition should not exceed 100°C 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 page 3 of 5 date 10/2007 rev. page 4 of 5 date 10/2007 DESCRIPTION: DC/DC converter PART NUMBER: VCD40 series DIMENSIONS (mm) 45.7 1.799 2.5 0.098 20.3 0.799 29.2 1.150 9 3 8 15.2 0.598 7.6 0.299 10.2 0.402 10.2 0.402 7 2 6 50.8 2.000 1 12.7 0.500 5.1 0.201 5.1 0.201 5 4 1.0 0.039 0.002 (TYP) 50.8 2.000 units: mm tolerance: x.xx ±0.02 x.xxx ±0.10 Bottom View Pin # Single Output Function Dual Output Function Triple Function 1 +V Input +V Input +V Input 2 -V Input -V Input -V Input 3 ON / OFF ON / OFF ON / OFF NO Pin +Aux. Out 4 NC 5.6 0.220 5 -Sense +V Output Common 6 +Sense Common -Aux. Out 7 +V Output Common +V Output 8 -V Output -V Output -V Output (Common) 9 Trim Trim NC DERATING CURVE 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 rev. page 5 of 5 date 10/2007 DESCRIPTION: DC/DC converter PART NUMBER: VCD40 series TRIM INFORMATION 1. The value of Rtrim-up defined as: 2. The output Voltage 3.3V,12V and 15V value of Rtrim are defined as below: R1x Vr Rtrim - up = ( ) - Rt (KΩ ) Vo - Vo , nom Rtrim - up = ( Where: R trim-up is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. Rtrim - down = R1x ( R1 ,Rt and Vr are internal to the unit and are defined in Table 1. For example, to trim-up the output voltage of 5.0V module (VCD40-D48-S5) by 5% to 5.25V, R trim-up is calculated as follows: Vo – Vo,nom = 5.25 – 5.0 = 0.25V R1 = 2.32 Kohm Rt = 8.2 Kohm , Vr= 2.5 Rtrim - up = Vr x R1x ( R 2 + R3) ) - Rt (KΩ ) (Vo - Vo , nom ) x R 2 Vr x R1 - 1) - Rt (KΩ ) (Vo , nom - Vo ) x R 2 Where: R trim-up is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. R1, R2, R3, Rt and Vr are internal to the unit and are defined in Table 2. Figure 1. Trim-up Voltage Setup 2.32 x 2.5 - 8.2 = 15 (KΩ ) 0.25 +Vout +Sense +Vin The value of R trim-down defined as: Rtrim - down = Trim R-Load R adj,up R1 x (Vo - Vr ) - Rt (KΩ ) Vo , nom - Vo -Sense -Vout -Vin Where: R trim-down is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. Figure 2. Trim-down Voltage Setup R1 ,Rt and Vr are internal to the unit and are defined in Table 1. +Vout +Sense +Vin For example, to trim-down the output voltage of 5.0V module (VCD40-D48-S5) by 5% to 4.75V, R trim-down is calculated as follows : R adj,down R-Load Vo,nom – Vo = 5.0 – 4.75 = 0.25 V R1 = 2.32 Kohm R t = 8.2 Kohm , Vr=2.5 Trim -Sense -Vout -Vin Rtrim - down = 2.32 x ( 4.75 - 2.5) - 8.2 = 12.68 (KΩ ) 0.25 Table 1 - Trim Resistor Values Model Number Output Voltage(V) R1 (Kohm) Rt (Kohm) Vr VCD40-D24-S5 VCD40-D48-S5 5.0 2.32 8.2 2.5 Table 2 - Trim Resistor Values Model Number Output Voltage(V) R1 (Kohm) R2 (Kohm) R3 (Kohm) Rt (Kohm) Vr VCD40-D24-S3R3 VCD40-D48-S3R3 3.3V 2.74 1.8 0.27 9.1 1.24 VCD40-D24-S12 VCD40-D48-S12 12V 6.8 2.4 2.32 22 2.5 VCD40-D24-S15 VCD40-D48-S15 15V 8.06 2.4 3.9 27 2.5 In order to trim the voltage up or down one needs to connect the trim resistor either between the trim pin and -Vo for trim-up and between trim pin and +Vo for trim-down. The output voltage trim range is ±10%. This is shown in Figures 1 and 2: 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382