S7AH-02A 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A 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 Industrial temperature range
Description
The Bel S7AH-02A and V7AH-02A 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 0.9V to 5.0V . They are packaged in a compact, overmolded package rated at 2A. Optional lead forming provides a vertical mount product for minimal footprint or a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit protection, output voltage adjust and industrial temperature ranges (-40° to +85° C). The output is closely regulated and the efficiency is typically 89% at full load. 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
S7AH-02A / V7AH-02A Series Distributed power architectures Data networking equipment Part Number Selection * F indicates fast start up. tuptuO egatloV tupnI egatloV tuptuO.xaM tnerruC tuptuO.xaM rewoP lacipyT ycneiciffE rebmuNtraP tnuoMecafruS rebmuNtraP tnuoMlacitreV V0.5V 21A 2W 01% 980 05A20-HA7S0 05A20-HA7V V0.5V 21A 2W 01% 98* F05A20-HA7S* F05A20-HA7V V3.3V 21A 2W 6.6% 880 33A20-HA7S0 33A20-HA7V V5.2V 21A 2W 0.5% 680 52A20-HA7S0 52A20-HA7V V8.1V 21A 2W 6.3% 280 81A20-HA7S0 81A20-HA7V V5.1V 21A 2W 0.3% 870 51A20-HA7S0 51A20-HA7V V2.1V 21A 2W 4.2% 470 21A20-HA7S0 21A20-HA7V V9.0V 21A 2W 8.1% 070 90A20-HA7S0 90A20-HA7V V36.3~9.0V 21A 2W 3.7% 070 A1A20-HA7S0 A1A20-HA7V V36.3~9.0V 21A 2W 3.7% 07* FA1A20-HA7S* FA1A20-HA7V Telecommunications Computers and peripherals
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A 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: 1. Use a 47uF/25V tan capacitor at the input. retemaraP lobmyS niM lacipyT xaM tinU egatloVtupnIsuounitnoCn iV3 .0- 51V egatloVlanimreTelbanEtuptuOn etuoV3 .0- 51V erutarepmeTtneibmAb maT0 4- 58C ° erutarepmeTegarotSr otsT5 5- 521C ° retemaraP eludoM lobmyS niM lacipyT xaM stinU egatloVtupnIgnitarepOl lAn iV8 .01 2.31V tnerruCtupnI V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 niI 2.1 58.0 7.0 5.0 54.0 4.0 53.0 A tnerruCtupnIdaoLoN llA 05 Am tnerruCtupnIffOetomeRl lA 30 1 Am tnerruCelppiRdetcelfeRtupnI 1 llA 001 Am smr )P-P(tnerruCelppiRdetcelfeRtupnI 1 llA 003 kpAm I2 tneisnarTtnerruChsurnItl lA 10.02 0.0A 2s dlohserhTegatloVnOnruTl lA 6.9 V dlohserhTegatloVffOnruTl lA8 .8 8.9V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 3 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin=12V,lout=half load,Ta=25° C. retemaraP eludoM lobmyS niM lacipyT xaM stinU tnioPteSegatloVtuptuO 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 tuoV 9.4 742.3 064.2 177.1 674.1 181.1 688.0 0.5 3.3 5.2 8.1 5.1 2.1 9.0 1.5 353.3 045.2 928.1 425.1 912.1 419.0 V noitalugeRdaoL V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 Vm noitalugeReniL V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 Vm erutarepmeTrevOnoitalugeR )C°58ot°04-(V 0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 Vm noitalugeRegatloVtuptuOlatoT )C°58ot°04-(V 0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 Vm
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A Output Specifications page 4 retemaraP eludoM lobmyS niM lacipyT xaM stinU esioNdnaelppiRtuptuO 2 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 p-pVm esioNdnaelppiRtuptuO 2 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 smrVm egnaRtnerruCtuptuOl lAt uoI0 2A timiLtnerruCCDtuptuOl lAm iltuoI 5.2 6 A egruStiucriCtrohS V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 egrustuoI 4.0 4.0 4.0 5.0 5.0 5.0 55.0 8.0 8.0 8.0 0.1 0.1 0.1 1.1 A2s emiTnonruT V36.3-V9.0 V0.5 noT 001 sm emiTnonruT 3 noT 010 2s m nOnruTtatoohsrevOl lA 03 % nOnruTtatoohsrevO 3 V0.5-V5.1 V2.1-V9.0 ecnaticapaCtuptuOl lAt uoC0 01 0001F µ Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 2. 0 - 20MHz BW with 100uF tan cap and 1uF ceramic cap. 3. For fast startup modules.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 5 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt=0.1A/uS,T a=25° C with 220uF/10V Tan cap. retemaraP eludoM lobmyS niM lacipyT xaM stinU esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V0.5 0510 02V m emiTgniltteSs T 0010 41s µ ∆ daoLxaMfo%05ot%001V 0510 02V m emiTgniltteSs T 0010 41s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V3.3 0210 51V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 0210 51V m emiTgniltteSs T 040 6s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.2 0010 31V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 0010 31V m emiTgniltteSs T 040 6s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V8.1 090 21V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 090 21V m emiTgniltteSs T 040 6s µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 6 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt=0.1A/uS,T a=25° C with 220uF/10V Tan cap. retemaraP eludoM lobmyS niM lacipyT xaM stinU esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.1 080 11V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 080 11V m emiTgniltteSs T 040 6s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V2.1 070 01V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 070 01V m emiTgniltteSs T 040 6s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V9.0 060 9V m emiTgniltteSs T 040 6s µ ∆ daoLxaMfo%05ot%001V 060 9V m emiTgniltteSs T 040 6s µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 7 Control Specifications General Specifications 1. Efficiency is measured at Vin=12V, full load and Ta=25° C. 2. See graphs on pages 17-25. 3. With remote on/off pin 1 open, unit on. retemaraP eludoM lobmyS niM lacipyT xaM stinU ycneiciffE 1 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 η ycneuqerFgnihctiwS V3.3~V9.0 V0.5 wsF 012 082 052 023 092 063 zHk egnaRmirTegatloVtuptuO )mirTediW( 2 V9.0 304% egnaRmirTegatloVtuptuO )mirTworraN( 2 V0.5 V3.3 V5.2 V8.1 V5.1 V2.1 V9.0 011 011 011 011 011 011 011 thgieWl lA 9.4 g retemaraP eludoM lobmyS niM lacipyT xaM stinU ffO/nOetomeR 3 llAn etuoV V )ffOtinU(woLlangiSl lA3 .0- 1V )nOtinU(hgiHlangiSl lA8 .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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 8 Efficiency Data MODULE 5.0V 60% 65% 70% 75% 80% 85% 90% OUTPUT CURRENT EFFICIENCY 10.8 13.2 MODULE 3.3V 55% 60% 65% 70% 75% 80% 85% 90% 95% OUTPUT CURRENT EFFICIENC Y 10.8 13.2 MODULE 2.5V 50% 60% 70% 80% 90% 100% OUTPUT CURRENT EFFICIENCY 10.8 13.2 MODULE 1.8V 50% 55% 60% 65% 70% 75% 80% 85% 90% OUTPUT CURRENT EFFICIENCY 10.8 13.2
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A Efficiency Data page 9 MODULE 1.5V 45% 50% 55% 60% 65% 70% 75% 80% 85% OUTPUT CURRENT EFFICIENCY 10.8 13.2 MODULE 1.2V 45% 55% 65% 75% 85% OUTPUT CURRENT EFFICIENCY 10.8 13.2 MODULE 0.9V 40% 50% 60% 70% 80% OUTPUT CURRENT EFFICIENCY 10.8 13.2
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 10 Ripple and Noise 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 With 100µF tan cap and 1uF ceramic cap at the output. 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, 5.0Vdc 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A Ripple and Noise Ripple and noise at full load and 12Vdc input, 0.9Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.2Vdc output and Ta=25° C page 11 Ripple and noise at full load and 12Vdc input, 1.5Vdc output and Ta=25° C With 100µF tan cap and 1uF ceramic cap at the output.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 12 Transient Response Transient response: di/dt = 0.1A/µS, with 220µF Tan capacitor. 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=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
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 13 Transient Response Vout=1.8V 100% to 50% load transients at 12V input and Ta=25° C Vout=1.8V 50% to 100% 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 Transient response: di/dt = 0.1A/µS, with 220µF Tan capacitor..
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 14 Vout=0.9V 50% to 100% load transients at 12V input and Ta=25° C Vout=0.9V 100% to 50% load transients at 12V input and Ta=25° C Vout=1.2V 50% to 100% load transients at 12V input and Ta=25° C Vout=1.2V 100% to 50% load transients at 12V input and Ta=25° C Transient Response 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 Transient response: di/dt = 0.1A/µS, with 220µF Tan capacitor..
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A x7AH-02A1Ax 0.9 ~ 3.3V Thermal Considerations page 15 Vin = 12V x7AH-02A50x
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 16 Output Voltage Set-Point Adjustment x7AH-02A1Ax Trim Resistor Calculation Rtrim up = 3.712 Vo, adj – Vo) Kohm( Adjuste d output voltag e Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) Rt r i mup Vadj_up()
3.630.9 Vadj_up
Note: Output voltage Vo=0.90 3V when trim pin is not connected. V O T rim GND R t R s V t Rt (Kohm) = Rs (4.64Vt - 3.712) 3.712 - Rs(Vout - 0.903)) Kohm( Note: Output voltage Vo=0.90 3V when trim pin is not connected. V O T rim GND R down R up R set Note: Output voltage Vo=0.90 3V when trim pin is not connected. Rset = 3.712 Vout - 0.903 Rup = 3.712 Rset Rset Vm up - 0.903 Rset - 3.712 Rdown = 4.64 Rset Vm down - 3.712 Rset 0.903 Rset + 3.712 - Rset Vm down Vout is desired output voltage. Margin up value after output voltage is set with Rset Margin down value after output volatge is set with Rset Vm down > 90% Vout ( ) Kohm ) Kohm( ) Kohm(
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 17 x7AH-02A090 Trim Resistor Calculation Output Voltage Set-Point Adjustment Vo Tr im Gnd Trim Up Test Circuit 100 200 300 400 500 600 700 800 900 1000 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) 1000 Rtrimup Vadj_up( ) 0.990.9 Vadj_up KohmVoadjVoupRtrim −= , 712.3_ Vo is the nominal output voltage setpoint when trim pin is open ,Vo=0.903V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. where,
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 18 Output Voltage Set-Point Adjustment x7AH-02A120 Trim Resistor Calculation Vo Tr im Gnd Vo Tr im Gnd Trim Down Test Circuit Trim Up Test Circuit KohmadjVoVodownRtrim −−= 64.4, 87.1_ KohmVoadjVoupRtrim −= , 712.3_ where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.203V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.203V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. 100 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 116 164 212 260 308 356 404 452 500 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 19 Output Voltage Set-Point Adjustment x7AH-02A150 Trim Resistor Calculation KohmadjVoVodownRtrim −−= 64.4, 2633.3_ KohmVoadjVoupRtrim −= , 712.3_ where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.503V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. 100 150 200 250 300 350 400 450 500 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 200 300 400 500 600 700 800 900 1000 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 20 Output Voltage Set-Point Adjustment x7AH-02A180 Trim Resistor Calculation KohmadjVoVodownRtrim −−= 64.4, 6538.4_ KohmVoadjVoupRtrim −= , 712.3_ where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.803V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.803V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. 100 150 200 250 300 350 400 450 500 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 150 200 250 300 350 400 450 500 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 21 x7AH-02A250 Trim Resistor Calculation Output Voltage Set-Point Adjustment KohmadjVoVodownRtrim −−= 64.4, 9117.7_ KohmVoadjVoupRtrim −= , 712.3_ where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=2.503V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. Vo is the nominal output voltage setpoint when trim pin is open ,Vo=2.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. where, 100 150 200 250 300 350 400 450 500 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 150 200 250 300 350 400 450 500 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 22 Output Voltage Set-Point Adjustment x7AH-02A330 Trim Resistor Calculation KohmadjVoVodownRtrim −−= 64.4, 614.11_ KohmVoadjVoupRtrim −= , 712.3_ Vo is the nominal output voltage setpoint when trim pin is open ,Vo=3.303V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. where, where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=3.303V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. 100 150 200 250 300 350 400 450 500 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 150 200 250 300 350 400 450 500 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 23 Output Voltage Set-Point Adjustment x7AH-02A50x Trim Resistor Calculation KohmadjVoVodownRtrim −−= 69.13, 02.26_ KohmVoadjVoupRtrim −−= 5.7, 952.4_ Vo is the nominal output voltage setpoint when trim pin is open ,Vo=5.003V Vo,adj is the adjusted output voltage. Rtrim-down is the resistance required between TRIM and Vo. where, Vo is the nominal output voltage setpoint when trim pin is open ,Vo=5.003V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. where, 100 150 200 250 300 350 400 450 500 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 100 150 200 250 300 350 400 450 500 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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 24 Mechanical S7AH-02A niP noitcnuF 1f fO/nOetomeR 2n iV+ 3d nuorG 4o V+ 5m irT 6n oitcennoCoN 7n oitcennoCoN 0.400 [10.16] 0.60 [15.24] 0.70 [17.78] 0.137 [3.48] 0.100 [2.54] 4x 0.400 [10.16] 0.012 [0.30] 0.050 ±0.002 [1.27 ±0.05] 0.020 ±0.002 [0.51 ±0.05] 0.320 [8.13] 0.780 [19.81] 0.055 [1.40] 0.090 [2.29] 2 x 4˚ 0.050 [1.27] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. 5 6
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 ©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP04x7AH-02A 12V Input / 0.9V – 5.0V Output / 2A page 25 Mechanical V7AH-02A niP noitcnuF 1f fO/nOetomeR 2n iV+ 3d nuorG 4o V+ 5m irT 0.700 [17.78] 0.600 [15.24] 0.050 [1.27] 0.265 [6.73] min 0.020 [0.51] 0.308 [7.82] 0.050 [1.27] 0.100 [2.54] 0.400 [10.16] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. 0.137 [3.47] 2 43 51