100W DC-DC Half-Brick Regulated Single Output Converter MHB100 series Features : Half-brick size (2.28" 2.4" 0.5") with industry standard pin out 2:1 wide input range Protections: Short circuit / Over current / Over voltage / Over temperature High efficiency up to 89% 1500VDC I/O isolation Built-in remote ON/OFF control Built-in remote sense function Trimming output 10% Five-sided shield metal case Optional heat sinks for extended operating temperature Output 2.5V/3.3V/15V available Approvals: UL / CUL / CE 3 years warranty SPECIFICATION MODEL MHB100-24S05 MHB100-24S24 MHB100-48S05 MHB100-48S12 MHB100-48S24 DC VOLTAGE 5V 12V 24V 5V 12V 24V CURRENT RANGE 0 ~ 20A 0 ~ 8.3A 0 ~ 4.17A 0 ~ 20A 0 ~ 8.3A 0 ~ 4.17A RATED POWER 100W 150mVp-p 240mVp-p 100mVp-p 150mVp-p 240mVp-p 8300uF 4170uF 20000uF 48VDC 8300uF 4170uF RIPPLE & NOISE (max.) Note.2 100mVp-p OUTPUT MHB100-24S12 VOLTAGE ACCURACY Note.3 1.0% LINE REGULATION 0.2% LOAD REGULATION 0.2% SWITCHING FREQUENCY (Typ.) 500KHz EXTERNAL TRIM ADJ. RANGE (Typ.) 10% EXTERNAL CAPACITIVE LOAD (max.) 20000uF RATED DC INPUT VOLTAGE RANGE 24VDC 18 ~ 36VDC 36 ~ 75VDC SURGE VOLTAGE (100ms max.) 50VDC INPUT UNDER VOLTAGE LOCKOUT EFFICIENCY (Typ.) FULL LOAD DC CURRENT NO LOAD FILTER OUTPUT OVER CURRENT PROTECTION OUTPUT OVER VOLTAGE (Typ.) OUTPUT SHORT CIRCUIT 100VDC Power up: 17VDC, Power down: 16VDC 84% 87% 87% 5020mA 4905mA 4880mA 50mA Pi-network Power up: 34VDC, Power down: 32.5VDC 86% 89% 88% 2480mA 2445mA 2465mA 50mA 110 ~ 140% rated output power Protection type : Over current limiting, recovers automatically after fault condition is removed 115 ~ 140% rated output voltage Protection type : Output voltage clamp Protection type : Can be continuous, recovers automatically after fault condition is removed 100 5 of case temperature OVER TEMPERATURE Please refer to "Remote ON/OFF Control" for details REMOTE CONTROL FUNCTION OPERATING OUTPUT TRIMMING 10%, Please refer to "External Output Trimming" for details 5 of case temperature (please refer to "Thermal Curve") WORKING TEMPERATURE (Typ.) -40 ~ +100 ; Thermal shutdown at 100 0% ~ 95% RH max. WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY -55 ~ +105 , 0 ~ 95% RH TEMP. COEFFICIENT SAFETY STANDARDS SAFETY & ISOLATION VOLTAGE ISOLATION RESISTANCE EMC (Note 4) EMC EMISSION OTHERS I/P-O/P:100M Ohms / 500VDC / 25 / 70% RH Compliance to EN55022 (CISPR22) Class A with external components (please refer to "EMC Suggestion Circuit") EMC IMMUNITY CASE MATERIAL Compliance to EN61000-4-2,3,4,5,6,8; EN55024, light industry level, criteria A MTBF 900K hrs typ. MIL-HDBK-217F (25 ) 57.9*61*12.7mm (2.28"*2.40"*0.5") (L*W*H) 95g DIMENSION WEIGHT NOTE 0.03%/ (0~60 UL60950-1 approved I/P-O/P:1500VDC, I/P-Case:1500VDC, O/P-Case:1500VDC Aluminum 1. All parameters NOT specially mentioned are measured at 24,48VDC input, rated load and 25 of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 1uf ceramic & 10uf tantalum capacitor across output. 3. The power supply need to connect "+Vout" to "+R.S" and "-Vout" to "-R.S". 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. File Name:MHB100-SPEC 2011-09-08 MHB100 100W DC-DC Half-Brick Regulated Single Output Converter Mechanical Specification series Unit:inch[mm] All Dimensions In Inches [mm] Tolerance Inches: X.XX= 0.02 , X.XXX= 0.010 Millimeters: X.X= 0.5 , X.XX= 0.25 0.18 min. 0.50 [4.6] [12.7] Mounting Inserts M3*0.5 R1.50 5 3 6 0.04 [1.02] 4 0.60 [15.24] 1.40 [35.56] 2.00 [50.8] 2.40 [61.0] 0.08 [2.03] BOTTOM VIEW 7 2 8 1 9 SIDE VIEW 1.90 [48.3] 2.28 [57.9] Pin No. Assignment Pin No. Assignment Pin No. Assignment Pin No. Assignment 1 2 +Vin -Vin 7 Trim R.C. 4 5 -Vout 8 +R.S. 3 Case 6 -R.S. 9 +Vout Remote ON/OFF Control The MHB100 series allow the user to switch the power ON and OFF electronically by their remote ON/OFF feature. The MHB100 series are available with "Positive Logic" (standard) or "Negative Logic" (option). Logic table Logic State(pin2) Positive logic Negative logic Logic Low-Switch Closed Power OFF(<0.8Vdc) Power ON(<0.8Vdc) Logic High-Switch Open Power ON(Open circuit) Power OFF(Open circuit) Note: 1.Logic compatibility : R.C.(pin2) ~ -Vin(pin4). 2.Suffix "N" to the model number with Negative logic remote ON/OFF. R.C.(pin2) MHB100 High singal here disable output -Vin(pin4) Example control circuit(positive logic) File Name:MHB100-SPEC 2011-09-08 MHB100 100W DC-DC Half-Brick Regulated Single Output Converter series External Output Trimming +Vin (pin1) +Vout (pin9) MHB100 +Vin (pin1) Trim (pin7) MHB100 R Trim-up -Vin (pin4) +Vout (pin9) -Vout (pin5) RTrim-down Trim (pin7) R -Load R -Load -Vin (pin4) -Vout (pin5) Figure 1 : Trim-up voltage setup Figure 2 : Trim-down voltage setup The value of RTrim-up defined as: The value of R Trim-down defined as: (R1-R2 (Vo-Vo, nom)) RTrim-up = (Vo-Vo, nom) (K ) (R1-R2 (Vo, nom-Vo)) R Trim-down = (Vo, nom-Vo) (K ) Where: R Trim-up is the external resistor in Kohm. Where: R Trim-down is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo,nom is the nominal output voltage. Vo is the desired output voltage. Vo is the desired output voltage. R1 and R2 are inside the unit and list in Table 1 R1 and R2 are inside the unit and list in Table 2. Output Voltage(V) R1 (Kohm) R2 (Kohm) Output Voltage(V) R1 (Kohm) R2 (Kohm) 5V 5.8 3.3 5V 5.8 5.32 12V 18.945 4.636 12V 86.45 60.1 24V 41.442 6.977 24V 430 120 Table 1 Table 2 For example, to Trim-up the output For example, to Trim-down the output voltage of 5.0V model (MHB100-48S05) Voltage of 5.0V model (MHB100-48S05) by 8% to 5.4V, RTrim-up is calculated by 8% to 4.6V, RTrim-down is as follows: calculated as follows : Vo - Vo,nom = 5.4 -5.0 = 0.4V Vo,nom - Vo = 5.0 - 4.6 = 0.4 V R1 = 5.8 Kohm R1 = 5.8 Kohm R2 = 3.3 Kohm R2 = 5.32 Kohm 5.8-3.3 0.4 R Trim-up= 0.4 5.8-5.32 0.4 = 11.2 (K ) R Trim-down = 0.4 = 9.18 (K ) File Name:MHB100-SPEC 2011-09-08 100W DC-DC Half-Brick Regulated Single Output Converter MHB100 series Thermal Curve The operating case temperature range of MHB-100 series is -40 oC to +100 oC. When operate the MHB-100 series, proper de-rating or cooling is needed. o The maximum case temperature under any operating condition should not be exceed 100 C. The following curve is the de-rating curve of MHB-100 series without heat sink. Power Dissipated vs Amb ient Temperature and Air Flow without heatsink 50 Na tural Co nvection 20 ft. /min. (0.1 m/s) 100 f t./min. (0 .5 m/s) 45 40 Power Disspated, Pd (Watts ) 200 f t./min. (1 .0 m/s) 35 300 f t./min. (1 .5 m/s) 30 25 400 f t./min. (2 .0 m/s) 20 500 f t./min. (2 .5 m/s) 15 600 f t./min. (3 .0 m/s) 10 700 f t./min. (3 .5 m/s) 5 800 f t./min. (4 .0 m/s) 0 0 10 20 30 40 50 60 Ambi ent Temperature, Ta ( Air Flow Rate Natural convection 20ft./min. (0.1m/s) 100 ft./min. (0.5m/s) Typical Rca 70 80 90 100 ) Air Flow Rate Typical Rca 7.12 /W 500 ft./min. (2.5m/s) 2.96 /W 6.21 /W 600 ft./min. (3.0m/s) 2.53 /W 200 ft./min. (1.0m/s) 5.17 /W 700 ft./min. (3.5m/s) 2.37 /W 300 ft./min. (1.5m/s) 4.29 /W 800 ft./min. (4.0m/s) 2.19 /W 400 ft./min. (2.0m/s) 3.64 /W Rca : Thermal resistance from case to ambience Example: What is the minimum airflow necessary for a MHB100-48S12 operates at nominal line, an output current of 8.3A, and a maximum ambient temperature of 40 ? Solution: Given: Vin=48Vdc, Vo=12Vdc, Io=8.3A, (unit efficiency)=89% Determine Power dissipation (P d ): P d =Pi-Po=Po(1- )/ P d =12 8.3 (1-0.89)/0.89=12.31 Watts Determine airflow: Given: P d =12.31W and Ta=40 Check Thermal Curve above: minimum airflow= 300 ft./min. Verifying: The maximum temperature rise T = P d Rca= 12.31 4.29=52.8 The maximum case temperature Tc=Ta+ T= 92.8 <100 Where: The Rca is thermal resistance from case to ambience. The Ta is ambient temperature and the Tc is case temperature. File Name:MHB100-SPEC 2011-09-08 MHB100 100W DC-DC Half-Brick Regulated Single Output Converter series Case Heat Sink (Optional) Unit:mm Model No.: M-C308 (Vertical Fins) Model No.: M-C091(Horizontal Fins) 58 61 61 48.20 50.8 50.8 48.2 58 48.2 3.3 58 50.80 4- 60.70 Model No.: M-C092 (Horizontal Fins) 2.-8.50 8-2 5.-7.80 25.4 2.7 12.7 2.7 21 3 0.3 R1 CR0.3 0.30 Rca: 3.90 1.74 1.33 1.12 0.97 / W (typ.), at natural convection / W (typ.), at 100ft./min.(LFM) / W (typ.), at 200ft./min.(LFM) / W (typ.), at 300ft./min.(LFM) / W (typ.), at 400ft./min.(LFM) Rca: 4.70 2.89 2.30 1.88 1.59 / W (typ.), at natural convection / W (typ.), at 100ft./min.(LFM) / W (typ.), at 200ft./min.(LFM) / W (typ.), at 300ft./min.(LFM) / W (typ.), at 400ft./min.(LFM) Rca: 3.00 1.44 1.17 1.04 0.95 / W (typ.), at natural convection / W (typ.), at 100ft./min.(LFM) / W (typ.), at 200ft./min.(LFM) / W (typ.), at 300ft./min.(LFM) / W (typ.), at 400ft./min.(LFM) File Name:MHB100-SPEC 2011-09-08 100W DC-DC Half-Brick Regulated Single Output Converter MHB100 series Heatsink Assembly Screw Washer Heat Sink Thermal Pad or suitable thermal grease Heat Sink Order No.: M-C308 M-C091 M-C092 Thermal Pad: 56.9x60x0.25mm Screw: SMP+SW M3x8L 1 2 3 4 EMC Suggestion Circuit Required external components to meet EN55022 class A conducted emission are as below: L1 +Vin +Vin C1 +Vout +Vout MHB100 C2 -Vin -Vin Case Lo ad -Vout -Vout C3 C4 Model No. C1 C2 C3 C4 L1 MHB100-24S 220uF/50V ESR<0.13 220uF/50V ESR<0.13 2200pF N.C 3.4uH MHB100-48S 47uF/100V ESR<0.17 47uF/100V ESR<0.17 1000pF 1000pF 3.4uH =05,12,24 File Name:MHB100-SPEC 2011-09-08