BTCPower TM Broadband TelCom Power, Inc. Redefining “Current” Limits In Power Conversion Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5.0, 12, 15, 24Vout 75W Description Features The HB75-12 Series of low cost half brick DC/DC converters are comparable to existing half-bricks. They are targeted specifically at the telecommunication, industrial electronics, mobile telecommunication and distributed power markets. With a wide input voltage range of 9-18V they are available with output voltage of either 2.5, 3.3, 5, 12, 15 or 24 Volts. All models feature an input filter, input undervoltage lockout, output overvoltage and overtemperature protection, output current limiting and short circuit protection. The unique open-frame construction with aluminum heat spreader design achieves efficient heat transfer with no hot spots. • Delivers up to 75W in half brick Applications • • • • • • • Telecommunications Data Communications Wireless Communications Networking Gear Servers, Switches and Data Storage Semiconductor Test Equipment Distributed Power Architecture • No minimum load required • Low profile of only 0.50 inch • 2.5V, 3.3V, 5V, 12V, 15V or 24V output models • Input operating range 9-18V • -40°C to +100°C ambient operation • On/Off pin and remote sense • Output adjustment +10% and –10% range • 1500V, 10M input-to-output isolation • Meets Basic Insulation requirements of EN60950 • UL 1950 recognized, TUV EN60950 and CSA C22.2 No. 60950-00 Certified (pending) • Meets conducted limits of FCC Class B and CEI IEC61204-3 Class B with external filter • MTBF of 1,000,000 hours @ 50°C (Bellcore) Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W CONVERTER SELECTION Typical @ Ta=+25°C under nominal line voltage and 75% load conditions, unless noted. Model Part Number Input Voltage Current 75% Load Range No load Full load (Volts) (Amps) (%) HB75-12-25N HB75-12-33N HB75-12-05N 12 12 12 9-18 9-18 9-18 0.1 0.1 0.1 4.11 5.29 7.72 2.5 3.3 5.0 15 15 15 76 78 81 HB75-12-12N HB75-12-15N HB75-12-24N 12 12 12 9-18 9-18 9-18 0.1 0.1 0.1 7.44 7.44 7.44 12 15 24 6.25 5.0 3.13 84 84 84 Negative Logic HB75-12-25 HB75-12-33 HB75-12-05 HB75-12-12 HB75-12-15 HB75-12-24 Current (A) Efficiency Nominal Positive Logic Voltage (Volts) Output Consult factory for other output voltage configurations. Outline and Pin-out Information Pin Connection Pin# Function 1 2 Vin + On/Off 3 Case 4 Vin - 5 6 7 8 9 Vout Sense Trim Sense + Vout + All dimensions are in inches [mm] Pin 5 and 9 are dia. 0.08 [2.03] All other pins are all dia. 0.040 [1.02] Pin material: Brass Pin finish: Tin/Lead plated Heat spreader (baseplate) material: Aluminum Weight: 60.5g Tolerance Inches Millimeters •XX ± 0.020 •X ± 0.5 •XXX ± 0.010 •XX ± 0.25 Pin: ± 0.002 ± 0.05 The information and specifications contained in this specification are believed to be accurate and reliable at the time of publication. Specifications are subject to change without notice. Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 2 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W Electrical Specification Typical test data at Ta=25°C, Vin=12V unless otherwise noted. PARAMETER NOTES Absolute maximum rating Input voltage Operating case temperature Storage temperature Humidity MIN TYP 0 -40 -40 MAX UNIT 24 100 105 95 V °C °C % 18 V 8.8 V Input characteristics Operating input voltage range 9 Turn on voltage threshold Turn off voltage threshold Off converter input current 8.2 12Vin V 5 mA Output characteristics Output voltage HB75-12-25 or HB75-12-25N 9-18Vin, no load to full load 2.47 2.50 2.53 V HB75-12-33 or HB75-12-33N 9-18Vin, no load to full load 3.25 3.30 3.35 V HB75-12-05 or HB75-12-05N 9-18Vin, no load to full load 4.85 5.00 5.15 V HB75-12-12 or HB75-12-12N 9-18Vin, no load to full load 11.7 12.0 12.3 V HB75-12-15 or HB75-12-15N 9-18Vin, no load to full load 14.5 15.0 15.5 V HB75-12-24 or HB75-12-24N 9-18Vin, no load to full load 23.5 24.0 24.5 V A Output current HB75-12-25 or HB75-12-25N 0 HB75-12-33 or HB75-12-33N 0 HB75-12-05 or HB75-12-05N 0 HB75-12-12 or HB75-12-12N 0 HB75-12-15 or HB75-12-15N 0 HB75-12-24 or HB75-12-24N 0 15 15 15 6.25 5.0 3.13 -10 +10 % 100 150 mV(pk-pk) 120 130 105 240 140 150 110 mV(pk-pk) % % °C ±0.05 %/°C 20 800 400 ms µs mv Output voltage trim range Percentage of normal output Output voltage ripple and noise 20Mz bandwidth, 100% Load, 12Vin, for 2.5,3.3,5,12,15V For 24V Output over power protection Over-voltage protection Over-temperature protection Temperature coefficient Output dynamic characteristics Startup time Transient recovery time Transient Peak 110 5% to 95% of the output voltage 25% load change (2.0A/us) 25% load change (2.0A/us) A A A A A Efficiency HB75-12-25 or HB75-12-25N 77 % HB75-12-33 or HB75-12-33N HB75-12-05 or HB75-12-05N 79 82 % % HB75-12-12 or HB75-12-12N 89 % HB75-12-15 or HB75-12-15N 85 % HB75-12-24 or HB75-12-24N 86 % Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 3 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W Isolation characteristics Isolation voltage (primary to case) 1minute Isolation voltage (secondary to case) 1minute Isolation resistance 500VDC, Primary to secondary 10 1000 VDC 500 VDC MΩ Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 4 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W Basic operation and functions The HB family uses planar transformer technology to achieve high output current. The whole unit switches at the fixed frequency for a predictable EMI performance. The HB Brick has many standard controls and protection functions. Input Power ( pin1, pin4 ) Input power Vin(+) must be connected to Positive input voltage pin1; Input power Vin(-) must be connected to Negative input voltage pin4. according to the specification, will turn the unit on or off. The positive logic version turns on when pin 2 is at logic high, and turns off when pin 2 is at logic low. The unit is on when pin 2 is left open. The negative logic version turns on when pin 2 is at logic low and turns off when pin 2 is at logic high. The pin 2 can be directed to Vin(-), to enable automatic turn on to the unit without the need of an external control signal. Output Power ( pin9, pin5 ) Output power Vout(+) must be connected to Positive output voltage pin9; Output power Vout(-) must be connected to Negative output voltage pin5. On/Off ( pin 2 ) Permits the user to maintain unit On/Off, in order to properly sequence different power supplies and reduce power consumption during the standby condition. There are two remote control options available, positive logic and negative logic is referenced to Vin(-), and typical connections are shown in Fig 1. Remote Sense ( pin 8, pin 6 ) Permits the user to maintain the accurate output voltage at the remote load terminals regardless of the line drop. The Sense(-) (pin6) and Sense(+) (pin8) should be connected at the load or at the point where the regulation is needed. ( shown on Fig. 2) Fig 2: Remote Sense Circuit Fig. 1: Typical Circuit for On/Off Function Pin 2 is the "Enable" pin, connecting a TTL compatible pin. A TTL control signal to this pin, The remote sense feature of the unit compensates for voltage drop occurring between the output pins of the unit and load. The Sense(-) (pin5) and Sense(+)(pin7) should be connected at the load or at the point where regulation is required. If remote Sense is not required, the Sense(-) pin must be connected to the Vout(-) pin (pin5), and Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 5 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W the Sense(+) pin must be connected to the Vout(+) pin(pin 9) to ensure the unit will regulate at the specified output voltage. If these connections are not made, the unit’s output voltage will be higher than the specified value. When trimming up, care must be taken, not to exceed the unit OVP threshold. A typical circuit is shown in Fig. 3. The unit output over voltage protection senses the voltage across Vout(+) and Vout(-), and not across the sense lines, so the resistance between the output pins of the unit and the load should be minimized to prevent unwanted triggering of the OVP. When using the remote sense feature, the output voltage at the unit can be increased by as much as 10% above the normal rating, in order to maintain the required voltage across the load. Therefore, the designer must consider this condition. Also when using the remote sense function, the output power must be taken care of, as not to exceed the maximum power capability of the unit. Fig 3. Trim Up Output Voltage Circuit Trimming down the output voltage for a typical circuit, as shown on Fig. 4. Output Voltage Trim (pin 7) Permits the user to adjust the output voltage up or down to achieve the custom voltage or to make the output voltage margining. The adjustment range is from + 10% to -10%. Output voltage can be adjusted up or down, by connecting the Rtrim-up or Rtrim-down resistor as shown. Rtrim-up makes the output voltage go up to 10%; and the Rtrim-down makes the output voltage go down to 10%. Fig 4. Trim Down Output Voltage Circuit Leave Trim pin ( Pin 7) open for normal output voltage. Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 6 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W Protection Features Input Under-voltage lockout ( IUV ) Input under voltage ( IUV ) is standard with the HB unit. The unit will shut down when the input voltage drops below a threshold, and the unit will turn on when the input voltage goes to the upper threshold. The hysteretic voltage of the under voltage protection is 0.5V, normally from the 8.8V to 8.2V range. Over Temperature Protection ( OTP ) The unit will shut down when the base plate temperature exceeds the protection threshold. The unit will shut down under the base plate temperature over a 105°C condition to protect the unit from overheating. The OTP circuit will turn the unit off when OTP happens. Once the unit has shut down, it will restart at the cycle when the base plate temperature goes down. Output Over-current Protection ( OCP ) The unit will shut down when the over current or short circuit condition exists. Once the OCP happens, the unit has shut down. The attempted restart will continue indefinitely until the over current or short circuit condition is removed. When OCP happens, the output voltage drops below 1.1V. Input voltage has almost no effect on the current limit point. Output Over-voltage Protection ( OVP ) The unit will shut down when the output voltage exceeds the over voltage threshold. If the output voltage across Vout(+) (pin9) and Vout(-) (pin5) exceeds the threshold of the OVP circuitry, the unit has shut down which is caused by an OVP circuit, and the unit will never restart, and the output voltage is below 0.5V. Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 7 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04 BTCPower TM Technical Specification HB75-12 Series 12Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W Application information Input Source Impedance The unit has been designed to be stable with no external capacitors when used in a low inductance input and output circuit. However in many applications, the inductance with the distribution from the power source to the input of the unit can affect the stability of the unit. The addition of 47uF electrolytic capacitor with an Esr < 1Ω (at 100khz) across the input can ensure the stability of the unit. Also in many applications, the user has to use decoupling capacitors at the output load, to ensure the hold up time for the load. Safety Requirements and Considerations If the input source is non-SELV ( ELV or a hazardous voltage greater than 60 Vdc and less than or equal to 75 Vdc), for the unit output to be considered meeting the requirements of safety extra low voltage (SELV), all of the following must be met: • The input source is to be provided with reinforced insulation from any hazardous voltage, including the ac main. • The input pins of the unit are not operator accessible. • For whole system, for safety agencies requirements, and for the combination of the unit’s input side (primary side) and the unit’s output side (secondary side), verify that under a single fault, hazardous voltages do not appear at the unit’s output side (secondary side). Never ground either of the input pins of the unit without grounding one of the output pins. This may allow a non-SELV voltage to appear between the output pin and ground. The unit meets the American and International safety regulatory requirement UL1950. Basic insulation is also provided between the input side and the output side. To meet safety agencies requirements, an input line fuse must be used external to the unit. An 8A fuse or less with a normal blow rate must be used to meet the safety agencies requirements. A minimum 42LFM airflow should also be provided if the unit is intended to operate at full power without heatsink. • Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 8 of 8 Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75-12 Rev2 16-1-04