NON-ISOLATED DC/DC CONVERTERS 4.5V-14V Input 0.8V-5.5V/8A Output

Transcription

1 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output x7ah08e Series PELIMINAY NnIslated emte On/Off Fixed Frequency Undervltage Lckut (UVLO) High Efficiency OCP/SCP High Pwer Density Wide ange Lw Cst Descriptin The Bel x7ah08e1a0 mdules are a series f nnislated, step dwn DC/DC cnverters that perate frm t14v surce. These cnverters are available in a range f utput vltages frm 0.8V t 5.5V. It is packaged in a cmpact, vermlded package rated at 8A. Optinal lead frming prvides a vertical munt prduct fr minimal ftprint r a surface munt ptin fr a very lw prfile. The utput is clsely regulated and the efficiency fr 5V utput is typically 93% at full lad. Part Selectin Output Input Max. Output Max. Output Typical Part Number Part Number Vltage Vltage Current Pwer Efficiency Surface Munt Vertical Munt 0.8V 3.63V 14V 8A 26.4W 91% S7AH08E1A0 V7AH08E1A0 5.5V 8V 14V 8A 44W 93% S7AH08E500 V7AH08E500 Nte: Add 0 suffix at the end f the mdel number t indicate Tube Packaging, and fr eel Packaging, and G fr Tray Packaging. Abslute Maximum atings Input Vltage (cntinuus) 0.3V 15V Output Enable Terminal Vltage 0.3V 14V Ambient Temperature 40 C 85 C Strage Temperature 55 C 125 C Input Specificatins Input Vltage V5.5V V0.9V3.63V Input Current (full lad) 14V 14V 5.4A 6.7A 5.3A 3.2A 3.0A 2.8A 2.0A Input Current (n lad) 100mA emte Off Input Current 3mA 10mA Input eflected ipple Current (pkpk) 180mA Input eflected ipple Current (MS) 50mA With simulated surce impedance f 500nH, 5Hz t 20MHz; use tw 47uF/16V lw ES Tantalum capacitrs. Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

2 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output Input Specificatins (cntinued) I 2 t Inrush Current Transient 0.04A 2 s Turnn Vltage Threshld Turnff Vltage Threshld 4.3V x7ah08e1a0 7.5V x7ah08e V x7ah08e1a0 7.2V x7ah08e500 Output Specificatins Output Vltage Set Pint Line egulatin Lad egulatin 4.900V 3.234V 2.450V 1.764V 1.470V 1.176V 0.882V 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 0.9V ±15mV ±10mV ±15mV ±10mV 5.100V 3.366V 2.550V 1.836V 1.530V 1.224V 0.918V ±25mV ±16.5mV ±12.6mV ±25mV ±16.5mV ±12.5mV egulatin Over Temperature (40 C t 85 C) 30mV 50mV Output Current 0A 8A Current Limit Threshld 10A 20A Shrt Circuit Surge Transient TBD ipple and Nise (MS) 15mV 30mV ipple and Nise (pkpk) 50mV 80mV Turn n Time 8mS 20mS Oversht at Turn n 0% 3% Output Capacitance 0uF 3200uF Transient espnse 50% ~ 100% Oversht 120mV 180mV Max Lad Settling Time 50uS 80uS 100% ~ 50% Max Lad Oversht All 120mV 180mV Settling Time 50uS 80uS Nte: All specificatins are typical at 12V input, full lad at 25 C unless therwise stated. Test cnditin: Vin12V, lut50% full lad BW 020MHz; with a 1uf ceramic capacitr and a 10uF/10V Tantalum capacitr at the utput. di/dt 0.5A/uS; Vin 12V; with a 1uF ceramic capacitr and a 10uF/10V Tantalum capacitr at the utput. Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

3 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output General Specificatins Efficiency 89% 87% 86% 84% 82% 81% 76% 93% 91% 90% 88% 86% 85% 80% Switching Frequency 330KHz Output ange 90%VO 403%VO x7ah08e1a0 1 90%VO 110%VO x7ah08e500 2 emte Sense Cmpensatin 0.2V MTBF Dimensins (surface munt) Inches (L W H) Millimeters (L W H) Dimensins (vertical) Inches (L W H) Millimeters (L W H) TBD 0.78 x 0.7 x x x x x x 7.82 x Weight 6g Ntes: All specificatins are typical at 25 C unless therwise stated. 1. The utput vltage is 0.9V at trim pin is pen. 2. The utput vltage is 5.0V at trim pin is pen. Measured at Vin12V, full lad Calculated Per Bell Cre T332 (IO Nminal; Ta 25 C) Cntrl Specificatins emte On/Off Signal Lw (Unit Off) 0.3V 0.8V Signal High (Unit On) 2.4V 14V emte n/ff pin pen, unit n. Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

4 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output Output Equatins 1) x7ah08e1a0 Equatins fr calculating the trim resistr (in kω) given the desired usted vltage (V) and the nminal utput vltage f the cnverter (Vnm) are shwn belw. The Dwn resistr shuld be cnnected between the pin and. The Up resistr shuld be cnnected between the pin and Grund. Only ne f the resistrs shuld be used fr any given applicatin. trim dwn trimdwn trim up trimup Nte: Output vltage V0.9V when trim_up is nt cnnected. 2) x7ah08e500 Equatins fr calculating the trim resistr (in kω) given the desired usted vltage (V) and the nminal utput vltage f the cnverter (Vnm) are shwn belw. The Dwn resistr shuld be cnnected between the pin and. The Up resistr shuld be cnnected between the pin and Grund. Only ne f the resistrs shuld be used fr any given applicatin. trim dwn trimdwn trim up trimup Nte: Output vltage V5V when trim_up is nt cnnected. Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

5 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output Efficiency Data MODULE 3.3V MODULE 2.5V 100.0% 105.0% MODULE 1.8V MODULE 1.5V 105.0% 70.0% MODULE 1.2V MODULE 0.9V 70.0% 100.0% 70.0% 60.0% Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

6 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output Thermal Derating Curves V0.9V V1.8V V3.3V Bel Fuse Inc. 206 Van Vrst Street, Jersey City, NJ Tel Fax

7 NONISOLATED DC/DC CONVETES 14V Input 0.8V5.5V/8A Output S7AH08E bel Pin Cnnectins Pin Functin 1 emte On/Off (ptin) 2 Vin 3 Grund 4 5 (ptin) 6 emte Sense (ptin) 7 N/A V7AH08E bel bel Pin Cnnectins Pin Functin 1 emte On/Off (ptin) 2 Vin 3 Grund 4 5 (ptin) 2005 Bel Fuse Inc. Specificatins subject t change withut ntice COPOATE FA EAST EUOPE Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Eurpe Ltd. 206 Van Vrst Street 8F/ 8 Luk Hp Street Prestn Technlgy Management Centre Jersey City, NJ San P Kng Marsh Lane, Suite G7, Prestn Tel Kwln, Hng Kng Lancashire, P1 8UD, U.K. Fax Tel Tel Fax Fax