E R I E S Specifications CHB50 25 TO 50 WATT WIDE INPUT DC-DC CONVERTERS SINGLE OUTPUT INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS: Input Voltage Range........................................................ 12V............9-18V 24V............18-36V 48V............ 36-75V Undervoltage lockout .............................. 12Vin power up ...............8.8V power down .................8V 24Vin power up ............... 17V power down ............. 16V 48Vin power up ............... 34V power down ............. 32.5V Positive Logic Remote ON/OFF ( see note 3 & 4 ) Input Filter ......................................................................................... PI Type Efficiency....................................................................................See Table Isolation Voltage ...........................Input/Output............ 1500VDC min. Input/Case................ 1500VDC min. Output/Case............ 1500VDC min. Isolation Resistance ............................................................ 107 ohm min. Switching Frequency ..................(12/24)Vin....................... 400KHz, Typ. 48Vin............................... 300KHz, Typ. Operating Case Temperature ....................................... -40˚C to 100˚C Storage Temperature .................................................. -55˚C to +105˚C Thermal Shutdown, Case Temp. ...........................................100˚C Typ. Dimensions ............................................................2.28x2.40x0.50 inches (57.9x61.0x12.7 mm) Case Material ..........................................................................Aluminum OUTPUT SPECIFICATIONS: Only for Nominal Input Voltage 24 & 48 VDC Features • • • • 25W/50W Isolated Output Efficiency to 85% 300KHz Switching Frequency 2 : 1 Input Range • • • • Regulated Outputs Continuous Short Circuit Protection Five-Sided Metal Case Industry Standard Half-Brick Package Voltage Accuracy : ..................................................................... ±1% max. Transient Response :25% Step Load Change ..........................<500µ sec. External Trim Adj. Range ......................................................................±10% Ripple & Noise, 20MHz BW, 2.5V & 3.3V & 5V .............. 20mV RMS., max. 75mV pk-pk, max. 12V & 15V .......................... 30mV RMS., max. 100mV pk-pk, max. 24V .......................... 100mV RMS., max. 240mV pk-pk, max. Temperature Coefficient............................................................ ±0.03%/˚C Short Circuit Protection..............................................................Continuous Line Regulation1 ..........................................................................±0.2% max. Load Regulation2 .......................................................................±0.2% max. Over Voltage Protect trip Range, % Vo nom.............................115-140% Current Limit .................................................110% ~150% Nominal Output CHB50 S NOTE: 1. Measured From High Line to Low Line. 2. Measured From Full Load to Zero Load. 3. Logic Compatibility .... Open Collector ref to -Input. Module ON ....................Open Circuit Module OFF................... <0.8Vdc 4. Suffix "N" to the Model Number with Negative Logic Remote ON/OFF. CASE HB MODEL NUMBER INPUT VOLTAGE CHB50-12S25 OUTPUT VOLTAGE OUTPUT CURRENT 2.5 VDC 10A 3.3 VDC CHB50-12S33 10A CHB50-12S12 12 VDC CHB50-12S15 CHB50-12S24 9-18 VDC 2740 mA 10A 5 VDC CHB50-12S05 INPUT CURRENT NO LOAD FULL LOAD 3525 mA %EFF 76 5145 mA 81 4.16A 4950 mA 84 15 VDC 3.33A 4950 mA 84 24 VDC 2.08A 4950 mA 84 50 mA Inches Millimeters HB 10A 1353 mA 77 CHB50-24S33 3.3 VDC 10A 1740 mA 79 5 VDC 10A 2540 mA 82 50 mA .XX±.02 .X±.5 Mounting Inserts M3*0.5 Through 4pl. 78 2.5 VDC 18-36 VDC All Dimensions In Inches(mm) Tolerances CHB50-24S25 CHB50-24S05 CASE 1.40 (35.56) 2.00 (50.80) .XXX±.01 .XX±.25 0.18 min. (4.60) 2*R1.50 BOTTOM VIEW 4 5 3 6 0.60 (15.24) 7 8 2 2.40 (61.00) CHB50-24S12 12 VDC 4.16A 2450 mA 85 1.90 (48.25) CHB50-24S15 15 VDC 3.33A 2450 mA 85 2.28 (57.90) CHB50-24S24 24 VDC 2.08A 2419 mA 86 CHB50-48S25 2.5 VDC 10A 676 mA 77 CHB50-48S33 3.3 VDC 10A 870 mA 79 CHB50-48S05 5 VDC 10A 1250 mA 83 CHB50-48S12 12 VDC 4.16A 1220 mA 85 CHB50-48S15 15 VDC 3.33A 1220 mA 85 CHB50-48S24 24 VDC 2.08A 1209 mA 86 PIN CONNECTION Pin 1. 2. 3. 4. 5. 6. 7. 8. 9. Ø0.08 (2.03) 2pl. Function +Vin ON/OFF CASE -Vin -Vout -Sense Trim +Sense +Vout Ø0.04 (1.02) 7pl. 9 1 HB Pin ±0.02 ±0.5 0.50 (12.70) External Output Trim +SENSE (8) Remote ON/OFF Control +SENSE (8) TRIM DOWN 36-75 VDC 69 50 mA ON/OFF (2) HB TRIM (7) TRIM (7) HIGH SIGNAL HERE DISABLE OUTPUT TRIM UP -VIN (4) -SENSE (6) NOTE : 1. Nominal Input Voltage 12, 24 & 48 VDC RSG ELECTRONIC COMPONENTS -SENSE (6) 70 RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany Tel. +49 69 984047-0 Fax +49 69 984047-77 [email protected] www.rsg-electronic.de ■ ■ 10K ohms TRIMPOT ■ Änderungen vorbehalten / subject to change without notice ■ ■ ■ All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted. Application Note Remote ON/OFF Control Derating The CHB50 series allows the user to switch the module on and off electronically with remote on/off feature. The CHB50 series are available with "positive logic" or "negative logic" (option). The operating case temperature range of the CHB50 series is -40˚C to +100˚C. When operating the CHB50 , proper derating or cooling is needed . Logic Table Following is the derating curve of CHB50 without heat sink. ON/OFF (2) (PIN 2) Logic Low Power Dissipated vs Ambient Temperature and Air Flow Power Disspated, Pd (Watts) 15 Natural Convection 20 ft./min. (0.1 m/s) Switch Closed HIGH SIGNAL HERE DISABLE OUTPUT Logic High - -VIN (4) 100 ft./min. (0.5 m/s) Switch Open Negative Logic Positive Logic Module on Module off Module off Module on CHB50 Logic State 10 200 ft./min. (1.0 m/s) 300 ft./min. ( 1.5 m/s) 5 External Output Trimming 400 ft./min. (2.0 m/s) Output may optionally be externally trimmed 0 0 10 20 40 30 50 60 70 80 90 100 (±10%) with a fixed resistor or an external +SENSE (8) +SENSE (8) trimpot as shown. Ambient Temperature, Ta(Deg. C) TRIM DOWN TRIM (7) TRIM (7) Forced Convection Power Derating with No Heat Sink 10K ohms TRIMPOT TRIM UP -SENSE (6) -SENSE (6) Where: External Output The power dissipation (Pd): Pd = Pi - Po = Po (1- )/ The thermal resistance are list below: Chart of Thermal Resistance vs Air Flow: AIR FLOW RATE TYPICAL Rca Natural Convection 7.12 ˚C/W 100 ft./min. 6.21 ˚C/W 200 ft./min. 5.17 ˚C/W 300 ft./min. 4.29 ˚C/W 400 ft./min. 3.64 ˚C/W Output Noise The output noise is measured with 10µF tantalum capacitor and 1.0µF ceramic capacitor across output. +Vout (9) Ceramic 1.0µF Resistor Load The temperature rise ( T ): T = Pd * Rca Solid Tantalum 10µF To Scope -Vout (5) Output Noise Test Circuit schematic 71 72 All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted.