bi441 short form 2007 dev.qxd 6/26/07 8:59 AM Page 19 Magnetics 19 Power Magnetics Transformers Model HM31 HM32 HM33 HM41 HM80 Industry Style Current Sense Current Sense Current Sense Gate Drive ISDN Isolation Inductance Range 1.3mH to 195mH 0.2mH to 85mH 180µH to 980µH 138µH to 860µH 2.7mH to 27mH Turns Ratio 1:25 to 1:300 1:10 to 1:200 1:30 to 1:70 1:0.67 to 1:2 1:0.6 to 1:2.5 Operating Frequency 20KHz plus 20KHz plus 250KHz plus 20KHz to 300KHz Supports ISDN 192kbps DC Resistance Range 0.7W to 11.0W 0.2W to 4.5W 1.0W to 4.75W 0.072W to 0.156W 0.9W to 15W Core Type Toroid Toroid EE Toroid Varies Operating Case Temp. Range -25°C to +105°C -25°C to +105°C -25°C to +105°C -25°C to +85°C 0°C to +85°C Packaging Options Bulk Bulk Tape & Reel Bulk Tape & Reel/Bulk Specifications subject to change without notice. We are capable of any core type. Custom Capability/Application Summary A. Power B. Data/Telcom Main Line Xfmr Inductor EMI Filter Gate Drive Current Sense Power Distrib. Power DC-DC Diff Com. MdXfmr (Mosfet) Ind. Xfmr Application Related Line Input (70-400V) LAN Xfmr Telecom Xfmr • • • • • • Operating Frequency (20–300KHz) • • • • • Digital Application Internal Safety Standards Core: Material & Configuration Ferrite: EE • • • ETD • • EC • • • • • • Buckle • • • PQ • • POT • • RM • • UU Slug • Drum • Toroid* Through-Hole Catalog Equivalent (HM, HS, HT) • Custom • • • • • • • Powder Iron: Toroid* Package SMD • • • • • • • • • • • • • 11, 12, 13, 15, 76, 77, 78 • • • • • • • • • • • • • • 18 19, 28 41 41 32 91, 92, 93 80, 81, 82, 83 * Also available in molypermalloy powder iron and tape wound amorphous metal materials. If your circuit performance dictates specific parameters not listed, please contact BI Technologies engineering. We would need the following to assist you in your design: • Operating frequency • Turns ratio • Withstanding voltage • Output power in watts • Size/shape restrictions or limits • Impedances • Circuit topology • Duty cycle www.bitechnologies.com bi441 short form 2007 dev.qxd 20 6/26/07 8:59 AM Page 20 Magnetics Power Magnetics Surface Mount Inductors and Ferrite Beads Model BCL 3225/4532/5650 BML/BMC BMB/BMB High Current HM71 Industry Style 1210/1812/2220 0402 to 1206 Inductor 0402 to 1812/0603 to 1812 Chip Beads Surface Mount Inductor Inductance Range 0.1µH to 10000µH 1.5mH to 33µH 7W to 2,200W /50W to 600W 0.01W to 13.8W DC Resistance 0.03W to 150mA 0.10W to 2.75W 0.05W to 1.0W /0.01W to 0.3W 0.1A to 20A Current Rating 25mA to 1800mA 1mA to 300mA 50mA to 600mA 0.5A to 6A Core Type Drum Monolithic Monolithic Drum Operating Case Temp. Range -40°C to +100°C -40°C to +125°C -25°C to +85°C -40°C to +85°C Packaging Options Tape & Reel Tape & Reel Tape & Reel Tape & Reel 1.0µH to 1,000µH Impedance Range Voltage Rating Through-Hole Inductors Model HM11 HM15 HM53 HM55 HM56 Industry Style Rod Core Inductor Encapsulated Inductor Output Inductor Power Inductor High current cube Indicator Inductance Range 0.21µH to 28µH 150µH to 1,000µH 1.4µH to 1000µH 0.4µH to 6.0µH 0.22µH to 1.30µH DC Resistance 0.9mW to 43mW 0.5W to 1.7W 2.6mW to 680mW 5.5A to 31A 0.5A to 1.7A 1.9A to 29.5A 9A to 40A 0.60mW to 2.20mW 25A to 80A Core Type Ferrite Rod Toroid Toroid Shielded Drum Composite Ferrite Operating Case Temp. Range -25°C to +105°C -40°C to +125°C -40°C to +155°C Packaging Options Bulk Tray Tray Tray Tray Voltage Rating Specifications subject to change without notice. For Custom Applications Please Contact Us. Selecting Minimum Inductance For A Buck Or Boost Converter: Example #1, Step-Down (Buck) Converter Input Voltage (VIN): Switching Frequency (F): Maximum DC Output Current (IDC MAX.): Voltage Drop Across Switcher (VSW): +22V to +26V 50KHz 2.5A 0.5V 1. Determine the minimum on time of the transistor switch. TON (MIN.) = Output Voltage (VO): +5V Minimum DC Output Current (IDC MIN.): Voltage Drop Across Diode (VD): 0.5A 0.5V VO + VD = 5 + 0.5 = 4.23µs F x EIN (MAX.) 50000 x 26 2. Assume the peak to peak ripple current, ΔIL, equal to twice the min. value of DC output current. 3. Calculate the minimum inductance. L MIN. = -6 [EIN (MAX.) – VO – VD] TON (MIN.) = (26 – 5 – 0.5) (4.23 x 10 ) = 86.7µH ΔIL 2 x 0.5 4. Refer to our catalog and select the smallest part meeting min. IDC and inductance requirement. www.bitechnologies.com -40°C to +125°C bi441 short form 2007 dev.qxd 6/26/07 8:59 AM Page 21 Magnetics HM66 HM68 HM72A HM77 HM78 Surface Mount Inductor Button Inductor Surface Mount Inductor Surface Mount Inductor Surface Mount Inductor 1µH to 330µH 2.2µH to 47µH 1µH to 1,070µH 10µH to 1,000µH 0.008W to 1.54W 0.081W to 2.34W 0.55mW to 332mW 4.56mW to 1,480mW 5.2mW to 5.2W 0.22A to 10.0A 0.48A to 1.9A 1.8A to 35A 0.71A to 13.3A 0.2A to 12A Shielded Drum Drum Composite Shielded Drum Core -40°C to +85°C -40°C to +100°C 40°C to +155°C -40°C to +105°C -40°C to +85°C Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel/Tube 21 Common Mode Chokes HM73 HM67 HM19 HM28 Surface Mount Inductor Surface Mount C.M. Toroid Style Buckle Style .01µH to 10µH 5µH to 4.7MH 1mH to 16mH 0.45mH to 120mH 0.5M to 23.1mW 5.8mW to 403mW 0.02W to 0.24W 0.08W to 2.7W 5.6A to 40A 0.2A to 1.0A 1.8A to 7.5A 0.5A to 4A 300V 250V 250V ER Toroid Toroid Buckle -40°C to 135°C -40°C to +125°C -25°C to +105°C -25°C to +105°C Tape & Reel Tape & Reel Tray Tray/Tube Example #2, Step-Up (Boost) Converter Input Voltage (VIN): Switching Frequency (F): Maximum DC Output Current (IDC MAX.): Voltage Drop Across Switcher (VSW): +12V to +15V 50KHz 1.5A 0.5V Output Voltage (VO): +24V Voltage Drop Across Diode (VD): 0.5V 1. Assume a maximum ripple current of 12.5% of inductor current. IL (AVE) 2. Determine the minimum on time of the switcher. TON (MIN.) = 3. Determine the average current through inductor. IL (AVE) = [VO – EIN (MAX.)+ VD] = 24 – 15 + 0.5 = 7.92µs F VO 50000 x 24 1.05 (VO + VD) IDC ~ 2.57A = 1.05 (24 + 0.5) 1.5 = EIN 15 4. Determine peak to peak ripple current. ΔIL = 2 (P/100) IL (AVE) = 2 x 12.5% x 2.57 = 0.643 5. Calculate the minimum inductance. L MIN. = -6 [EIN (MAX.) – VSW] TON (MIN.) = (15 – 0.5) (7.92 x 10 ) = 179µH ΔIL 0.643 6. Refer to our catalog and select the smallest part meeting Min. LDC and inductance requirement. www.bitechnologies.com bi441 short form 2007 dev.qxd 22 6/26/07 8:59 AM Page 22 Magnetics Signal Magnetics LAN/WAN/ISDN Model HS91 HS92 Industry Style Single Port 100/1000MB 10 Base-T Ethernet AUI Transformer T1/CEPT/ISDN Transformer Turns Ratio (Chip to Media Side) 1:1, ÷2:1 1:1, 1ct:2ct 1:1:1, 1:2ct, 1ct:2ct, 1:2 Operating Temp. Range 0°C to +70°C 0°C to +70°C 0°C to +70°C Insertion Loss -1.0 Typ. 1 to 100MHz Rise Time 2.5ns, Typ. Return Loss -11 to -18dB, 0.1 to 100MHz Common Mode Rejection -35 to -45dB, 0.1 to 100MHz Cross Talk -38 to -40dB, 0.1 to 100MHz Insulation Voltage, Minimum 1,500Vrms 2,000Vrms 2,000Vrms Inductance 350µH @ 100KHz 90µH to 140µH @ 100KHz 1.2mH to 22mH @ 100KHz Leakage Inductance 0.1µH to 0.2µH @ 100KHz 0.5µH to 11µH @ 100KHz Interwinding Capacitance 10pF to 12pF @ 100KHz 35pF to 100pF @ 100KHz DC Resistance 0.3W to 0.6W 0.7W to 2.4W Surface Mount Surface Mount/Through-Hole Mounting Style Surface Mount HS93 DSL Coupling Transformer Model HT81 HT82 HT83 Industry Style HDSL Transformer VDSL Transformer Common Mode Choke* Turns Ratio (Chip to Media Side) 1ct, 2ct:1.8ct, 2st 1:1, 1:1:1 Insertion Loss 1.0dB Max. @ 40KHz 0.5dB to 0.8dB @ .2MHz to 30MHz Return Loss 16.5dB to 20dB @ Mid. Band 10dB to 22dB @ .2MHz to 30MHZ Longitudinal Balance 50dB to 55dB @ 5 to 320KHz 30dB to 40dB @ .2MHz to 3MHz THD -70dB to -75dB -70dB Inductance @ 10KHz 2mH to 3mH 175µH to 250µH Cross Talk -38dB to -40dB, 0.1 to 100MHz Common Mode Attenuation 20dB to 45dB Parallel Impedance @ 10KHz Mounting Style Specifications subject to change without notice. * For applications up to 25.92 mbs. www.bitechnologies.com 24µH to 4mH 7.5kW Through-Hole Surface Mount/Through-Hole Surface Mount/Through-Hole