S7DB-07A BEL | Alldatasheet
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Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A Nonisolated Compact, low profile surface mount package Fixed frequency High efficiency means less power dissipation Excellent thermal performance Optimized for cost Remote on/off Undervoltage lockout (UVLO) Over current and short circuit protection Remote sense
Description
The Bel S7DB-07A modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal 12V source. These converters are available in a range of output voltages from 1.2V to 5.0V . They are packaged in a compact, low profile, surface mount DIP package for ease of layout and space savings. 7A maximum output is also provided. Standard features include remote on/off, over current and short circuit protection, UVLO and output voltage adjust. These products may be used almost anywhere low voltage silicon is employed and a 12V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment.
Applications
Distributed power architectures Data networking equipment Telecommunications Computers and peripherals Part Number Selection tuptuO egatloV tupnI egatloV tuptuO.xaM tnerruC tuptuO.xaM rewoP lacipyT ycneiciffE rebmuNtraP V0.5V 21A 7W 0.53% 290 05A70-BD7S V3.3V 21A 7W 1.32% 090 33A70-BD7S V5.2V 21A 7W 5.71% 880 52A70-BD7S V8.1V 21A 7W 6.21% 380 81A70-BD7S V5.1V 21A 7W 5.01% 280 51A70-BD7S V2.1V 21A 7W 4.8% 180 21A70-BD7S
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 2 Input Specifications Absolute Maximum Ratings Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device. Note: Input capacitance two 270µF/16V, ESR = 0.018 Ω max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. retemaraP lobmyS niM lacipyT xaM tinU egatloVtupnIsuounitnoCn iV3 .0- 51V egatloVlanimreTelbanEtuptuOn etuoV3 .0- 3.51V erutarepmeTtneibmAb maT0 07C ° erutarepmeTegarotSr otsT0 4- 001C ° retemaraP eludoM lobmyS niM lacipyT xaM stinU egatloVtupnIgnitarepOl lAn iV8 .012 12 .31V tnerruCtupnI V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 niI 0.4 6.2 0.2 7.1 4.1 3.1 A tnerruCtupnIdaoLoN V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 Am tnerruCtupnIffOetomeR 14 A m tnerruCelppiRdetcelfeRtupnI 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 Am smr )P-P(tnerruCelppiRdetcelfeRtupnI 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 021 001 001 kpAm I2 tneisnarTtnerruChsurnIt 80.06 1.0A 2s dlohserhTegatloVnOnruT 4.01V dlohserhTegatloVffOnruT2 .8 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 3 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 12V, Iout = full load, Ta = 25° C. 2. 0 - 20MHz, 0.1µF ceramic cap and 10µF aluminum cap on output. retemaraP eludoM lobmyS niM lacipyT xaM stinU tnioPteSegatloVtuptuO 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 tuoV 009.4 742.3 064.2 177.1 674.1 181.1 00.5 03.3 05.2 08.1 05.1 02.1 001.5 353.3 045.2 928.1 425.1 912.1 V noitalugeRdaoL V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 5.61 Vm noitalugeReniLl lA 30 1V m erutarepmeTrevOnoitalugeR V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 Vm noitalugeRegatloVtuptuOlatoT V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 5.95 Vm esioNdnaelppiRtuptuO 2 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 521 001 001 001 001 001 p-pVm esioNdnaelppiRtuptuO 2 llA 510 3s mrVm egnaRtnerruCtuptuOl lAt uoI0 7A timiLtnerruCCDtuptuOl lAm iltuoI1 .92 16 1A egruStiucriCtrohS V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 egrustuoI 2.1 0.1 9.0 7.0 7.0 6.0 7.1 5.1 4.1 2.1 2.1 1.1 A2s emiTnonruT V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 noT sm nOnruTtatoohsrevOl lA 3% ecnaticapaCtuptuOl lAt uoC0 0053F µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 4 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt = 0.5A/1µS, Ta = 25° C with a 220µF Tantalum cap at output. retemaraP eludoM lobmyS niM lacipyT xaM stinU esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V0.5 5210 52V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 5210 52V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V3.3 0015 61V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0015 61V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.2 0010 51V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V8.1 0010 51V m emiTgniltteSs T 030 7s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 030 7s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.1 0010 51V m emiTgniltteSs T 030 7s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 030 7s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V2.1 0110 51V m emiTgniltteSs T 030 7s µ ∆ daoLxaMfo%05ot%001V 0110 51V m emiTgniltteSs T 030 7s µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 5 Note: On/off pin designed to work with an open collector/drain switch. Control Specifications General Specifications 1. Vin=12V, full load and Ta=25° C. 2. See graphs on pages 10-13. 3. With remote on/off pin 8 open, the module is on. retemaraP eludoM lobmyS niM lacipyT xaM stinU ycneiciffE 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 η ycneuqerFgnihctiwS V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 wsF 582 082 832 081 081 081 553 033 082 012 012 012 524 083 223 042 042 042 zHk egnaRmirTegatloVtuptuO 2 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 011 011 011 021 021 011 noitasnepmoCesneSetomeR llA 01 % thgieWl lA 8.01 g retemaraP eludoM lobmyS niM lacipyT xaM stinU ffO/nOetomeR 3 llAn etuoV V )ffOtinU(woLlangiSl lA0 1V )nOtinU(hgiHlangiSl lA5 .2 2.31V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 6 Efficiency Data Module 5.0V 84% 86% 88% 90% 92% 94% 12345678 Output Current Efficiency 10.8v 12.0v 13.2V Module 3.3V 78% 80% 82% 84% 86% 88% 90% 92% 94% 12345678 Output Current 10.8V 12.0V 13.2V Module 2.5V 75% 80% 85% 90% 12345678 Output Current Efficiency 10.8V 12.0V 13.2V Module 1.8V 74% 76% 78% 80% 82% 84% 86% 88% 90% 12345678 Output Current Efficiency 10.8V 12.0V 13.2V Module 1.5V 74% 79% 84% 89% 12345678 Output Current Efficiency 10.8V 12.0V 13.2V Module 1.2V 75% 80% 85% 90% 12345678 Output Current Efficiency 10.8V 12.0V 13.2V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 7 Ripple and Noise Ripple and noise at full load and 12Vdc input, 5.0Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 3.3Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 2.5Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.8Vdc output and Ta=25° C 0.1µF ceramic cap and 10µF aluminum electrolytic cap added at the output. Ripple and noise at full load and 12Vdc input, 1.5Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.2Vdc output and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 8 Transient Response Transient response: di/dt = 0.5A/µS, external load capacitance Co=220µF aluminum cap at output Vout=5.0V 50% to 100% load transients at 12V input and Ta=25° C Vout=5.0V 100% to 50% load transients at 12V input and Ta=25° C Vout=3.3V 50% to 100% load transients at 12V input and Ta=25° C Vout=3.3V 100% to 50% load transients at 12V input and Ta=25° C Vout=2.5V 50% to 100% load transients at 12V input and Ta=25° C Vout=2.5V 100% to 50% load transients at 12V input and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 9 Transient Response Vout=1.8V 50% to 100% load transients at 12V input and Ta=25° C Vout=1.8V 100% to 50% load transients at 12V input and Ta=25° C Transient response: di/dt = 0.5A/µS, external load capacitance Co=470µF (Tantalum capacitor) Vout=1.2V 50% to 100% load transients at 12V input and Ta=25° C Vout=1.5V 50% to 100% load transients at 12V input and Ta=25° C Vout=1.5V 100% to 50% load transients at 12V input and Ta=25° C Vout=1.2V 100% to 50% load transients at 12V input and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 10 Thermal Considerations Output Voltage Set-Point Adjustment Derating CurveOutput Current (A) Output Current vs. Local Ambient Temperature and Air Velocity Ambient Temperature, Ta (˚C) 0 6030 70 Natural Convection 100LFM 10 20 40 50 Vo Tr im Gnd Vo Tr im Gnd Trim Down Test Circuit Trim Up Test Circuit
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 11 S7DB-07A500 Trim Resistor Calculation Rtrim down = 10.52 Vo – Vo, adj– 4.55) Kohm( Rtrim up = 2 Vo, adj – Vo– 2.05) Kohm( Output Voltage Set-Point Adjustment S7DB-07A330 Trim Resistor Calculation Rtrim down = 5.08 Vo – Vo, adj– 4.55) Kohm( Rtrim up = 3.175 Vo, adj – Vo– 2.05) Kohm( 5.04 10.04 15.04 20.03 25.03 30.02 35.02 40.01 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 10.9 20.8 30.7 40.6 50.5 60.4 70.3 80.2 90.1 100 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) 5.04 10.04 15.04 20.03 25.03 30.02 35.02 40.01 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 10.9 20.8 30.7 40.6 50.5 60.4 70.3 80.2 90.1 100 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A page 12 S7DB-07A250 Trim Resistor Calculation Rtrim down = 3.926 Vo – Vo, adj– 4.64) Kohm( Rtrim up = 4.02 Vo, adj – Vo– 1.47) Kohm( S7DB-07A180 Trim Resistor Calculation Rtrim down = 3.869 Vo – Vo, adj– 11.34) Kohm( Rtrim up = 3.072 Vo, adj – Vo– 7.5) Kohm( Output Voltage Set-Point Adjustment 5.04 10.04 15.04 20.03 25.03 30.02 35.02 40.01 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) 19.5 48.5 77.5 106.5 121 135.5 150 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 10.18 20.16 30.14 40.12 50.1 60.08 70.06 80.04 90.02 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A S7DB-07A150 Trim Resistor Calculation Rtrim down = 2.704 Vo – Vo, adj– 11.34) Kohm( Rtrim up = 3.072 Vo, adj – Vo– 7.5) Kohm( S7DB-07A120 Trim Resistor Calculation Rtrim down = 0.874 Vo – Vo, adj– 6.58) Kohm( Rtrim up = 1.728 Vo, adj – Vo– 4.42) Kohm( Output Voltage Set-Point Adjustment page 13 24.5 63.5 102.5 122 141.5 161 180.5 200 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 10.18 20.16 30.14 40.12 50.1 60.08 70.06 80.04 90.02 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) 10.09 20.08 30.07 40.06 50.05 60.04 70.03 80.02 90.01 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 20.9 40.8 60.7 80.6 100.5 120.4 140.3 160.2 180.1 200 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm)
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com ©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP02S7DB-07A 12V Input / 1.2V – 5.0V Output / 7A Mechanical Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.niP noitcnuF 1d nuorG 2d nuorG 3d nuorG 4d nuorG 5n iV+ 6n iV+ 7m irT 8f fO/nOetomeR 9) +(esneSetomeR 01o V+ 11o V+ 21o V+ page 14 1.22 [30.99] 0.394 [10.01] 0.67 [17.00] 0.985 [25.02] 0.197 [5.00] 0.102 [2.59] 0.345 [8.76] 0.010 [0.25] 0.827 [21.01] 2X 0.050 [1.27] 2X 0.079 [1.99] 0.004 [0.10] 0˚- 5˚ 0.100 [2.54]0.120 [3.05] 0.197 [5.00] 0.895 [22.73] Suggested PCB Pad Layout 12 34 5 6 12 11 10 9 8 7