MTH100 XPPOWER | Alldatasheet

Document overview

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Technical content

The MTH100 is a COTS hold-up module developed specifically for the defense and avionics market. The product is designed to maintain electronic system operation during extended input bus drop-out scenarios. It reduces the capacitance needed by up to 8 0%, charging the hold-up capacitor to a high voltage (35 V or 45 V) and uses the additional stored energy to supply the system.

  • Designed for Extended Hold-Up Applications
  • 80% Less Hold Up Capacitance Required
  • High Energy Density
  • High Efficiency
  • User Programmable
  • Reduces System Size and Weight
  • 10 A Output Current
  • Wide Input Range
  • 3 Year Warranty

xppower.com Charger Output Input Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Input Voltage 10.00 28.00 40.00 VDC Transient Input Range 50.00 V For 1 s Input Current 10.05 A At full load (10 A) Additional Input Charging Current 1.50 2.50 A At 10 VDC input, during hold up capacitor charging No Load Current 50.00 mA Power Fail Voltage Threshold (DCFP) 10.00 V Vfail set by resistor R1, see page 5 Reverse Voltage Protection Required and to be provided, see page 5 Fuse Protection External fuse required for overload protection Characteristic Minimum Typical Maximum Units Notes & Conditions Hold Up Capacitor (C1) 1000 uF See page 5 Hold Up Capacitor Charge Time s See page 5 Set Accuracy 2 % Charger Output Voltage (VCap) 35 36.4

46.8 V CVP not connected

Ripple and Noise 1 % pk-pk Of charger output @ 20 MHz Overvoltage Protection 48 49 50 V Overload Protection No damage for overload or short circuit. If Vout <30 V after 10 s the charger will shut down and restart after a further 10 s Overtemperature Protection 102 107 ºC With 5 ºC typical hysteresis Charge/Discharge Detect Signal (CDD) Open collector output, 100 V, 100 mA max, Low at 90% Vcap, High at 30% Vcap, Tolerance ±3% Power Fail Detect (DCFD) Open collector output, 100 V, 100 mA max, Low at Vin >Vfail, High at Vin <Vfail, Tolerance ±3% General Specification Characteristic Minimum Typical Maximum Units Notes & Conditions Efficiency 98 % At 28 VDC input and max power Series Resistance 0.013 Isolation 1000

1000 VDC Input to Case

Switiching Frequency 400 kHZ Output Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Output Current 10 A Output Power 100 W Voltage Drop 130 mV At 10 A Output Voltage Vin - 0.13 V At 10 A load Changeover Capacitor 150 470 μF ±20%, see page 5 Hold Up Time See page 5

xppower.com Environmental EMC Standard Category Conducted Emissions EN55022 Conducted Level B, MIL-STD-461E/F CE101, CE102 Immunity MIL-STD 1275 A-D Conducted Susceptibility MIL-STD-461E CS101, CS114, CS115, CS116 Models & Ratings Output Voltage Input Voltage Efficiency Model Number Vin - (Iout x 0.013)(1) 10 - 40 VDC 98 % MTH100Vcap - 0.8 V(2) Temperature / Environment Ground Mobile - GM Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF 20 ºC 1560851 Hrs 1179429 Hrs 553496 Hrs 40 ºC 1048943 Hrs 795673 Hrs 373869 Hrs 60 ºC 730034 Hrs 557914 Hrs 263091 Hrs 80 ºC 520067 Hrs 402490 Hrs 191184 Hrs 100 ºC 374123 Hrs 295449 Hrs 142217 Hrs MTBF Calculations Characteristic Minimum Typical Maximum Units Notes & Conditions Operating Temperature -40 +100 ºC Case Extended Temperature -55 ºC Start up with -LT screen option Storage Temperature -50 125 ºC Excluding Packaging Operating Altitude 70,000 feet (21336 m) Shock 100g MIL-STD 810D Method 516.3 Bump 2000 bumps in each axes at 40g, MIL-STD-810D, Method 516.3 Vibration 10 to 2000 Hz MIL-STD 810D, Method 514.3 Salt Atmosphere 48 hours duration MIL-STD 810E, Method 509.1 EMC standards are met when use in conjunction with the MTF or DSF filter modules or other external components. 1. During normal operation. 2. During hold-up time. 3. For -55 ºC extended operating range add suffix ‘-LT’ to the part number

xppower.com Application Notes MTF50 (optional) Reverse Polarity Protection MTH100 DC/DC Converter DC/DC Converter 45 V 35 V -Vin 4 - Vin 6 +Vin

5 DCFP

+Vout 9 +Vout 10 C1+ R1 = - 3.92 x 10 3 ( ( Vfail - 9.785 40.67 Pout x 400 x 10-6 Vfail 2 - Vmin x 1.1( ( 2 x Pout x t hold-up Vcap 2 - Vmin R1: Resistor setting the input voltage fail threshold (DCFP) Vfail: Required fail voltage C1: Hold up capacitor (minimum value including tolerance) t hold up: Hold up time required Vcap: C1 charge voltage Vmin: Minimum DC/DC input voltage (≥10 VDC) Pout: Output power from MTH100 C2: Changeover capacitor Figure 3 - Connection diagram 1. C1 has a minimum value of 1000 μF , this enables an open circuit or missing component to be detected. There is no maximum limit other than extended charge time. 2. MTH100 charges the Hold-up capacitor C1 to 45V max when charge voltage programming (CVP) pin is connected or 35V when not co nnected. Charging starts when the input voltage reaches the power fail voltage threshold. 3. Input DC fail programming (DCFP) sets the power fail voltage threshold using resistor R1. See formula for the value required . 4. Input DC fail detect (DCFD) is an open collector circuit which changes state when the input voltage fails below the set thre shold. 5. Charge/discharge detect (CDD) is an open collector circuit which goes low when C1 is charged to 90% of Vcap or high when C1 discharges down to 30% of Vcap. 6. DCFD & CDD may be pulled up to +Vout with a suitable pull up resistor to create a signal referenced to the input or may be u sed to drive an opto-coupler diode with a suitable current limiting resistor where the signal is required to be referenced to the output. Notes Maximum charge time at Vin = 10 V C1 (μF) Vcap (V) Time (s) Typical Max 10,000 45 1.2 1.5 10,000 35 0.8 1.0 30,000 45 3.4 4.0 30,000 35 2.0 2.4 50,000 45 5.5 6.0 50,000 35 3.2 3.8

xppower.com CH1 Vin CH3 Vcap CH4 Iin 1A / div (input current) CH1 Vin CH2 Vout CH3 Vcap CH4 lout Example: C1 = 30 mF C2 = 150 μs Vcap = 45 V CVP = Low DCFP = 10 V tcharge = 1.7 s Example: C1 = 50 mF C2 = 150 μF Constant Power Load = 10.5 A Vcap = 45 V CVP = Low DCFP = 15 V thold up = 500 ms

xppower.com Digital Outputs (DCFD, CDD) CH1 Vin DCFD CH3 Vcap CDD CH1 Vin DCFD CH3 Vcap CDD Digital outputs at rising Vin and Vcap Digital outputs at falling Vin and Vcap Example: C1 = 30 mF Constant Power Load = 10.5 A Vcap = 45 V DCFP = 10 V Example: C1 = 30 mF Constant Power Load = 10.5 A Vcap = 45 V DCFP = 10 V

xppower.com 0.10 (2.54) 0.149 (3.80) 0.149 (3.80) 1.275 (32.40) 0.724 (18.40) 0.177 (4.50) 0.500 (12.70 )+0.5-0.3 +0.021-0.012 Bottom View Pin Function Pin Function

1 Not fitted 8 Not fitted

2 Case 9 +Vout

3 Not fitted 10 +Vout

4 -Vin 11 Hold-up capacitor voltage, Vcap

5 Input DC fail programming (DCFP) 12 Charge voltage programming (CVP)

6 +Vin 13 Input DC fail detect (DCFD) 7 +Vin 14 Charge/discharge detect (CDD) 1. Dimensions are in inches (mm) 2. T olerance: ±0.02 (±0.5) 3. Weight: 0.06 lb (25 g) 4. Materials & Finish: Pin - Diameter: 0.032 (0.8), Material: Cu Zn30 2.5 μm Ni Finish: 0.2-0.5 μm AU (HV 170-200) Mounting Hole - Diameter: 0.102 (2.6) Case - Material: Aluminium (Al Mg Si 0.5), Finish: Chromated Nameplate - Non-conductive plastic Mechanical Details Notes