STEP-DOWN SWITCHING REGULATOR Type GS-R1005 FEATURES Wide in

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

STEP-DOWN SWITCHING REGULATOR Type GS-R1005 FEATURES Wide in

Datasheet Thumbnail

Top Searches for this datasheet

GS-R1005
STEP-DOWN SWITCHING REGULATOR
Type GS-R1005
FEATURES Wide input voltage range 36V) High efficiency (80% min.) Parallel operation with current sharing Synchronization Remote inhibit/enable Remote load voltage sense Output short-circuit protection Soft-start chassis mountable DESCRIPTION GS-R1005 step-down switching voltage regulator suitable provide 5V/10Aoutput voltage from wide input voltage range 36V).
ABSOLUTE MAXIMUM RATINGS
Symbol Viinh Tcop Tstg Input Voltage High Inhibit voltage Operating Case Temperature Range Storage Temperature Range Parameter Value +105 Unit
June 1994
GS-R1005
ELECTRICAL CHARACTERISTICS (Tamb 25°C unless otherwise specified)
Symbol Vien Viinh liinh Iosc Parameter Input Voltage Input Current Reflected Input Current Enable Input Voltage Inhibit Input Voltage Inhibit Input Current Output Voltage Output Ripple Voltage Line Regulation Load Regulation Total Remote Sense Compensation Output Current* Output Current Limiting Short-circuit Output Current Current Sharing Deviation Soft-start Time Line Transient Recovery Time Load Transient Recovery Time Switching Frequency Efficiency Thermal Resistance Case-to-ambient Test Conditions 5.05V 5.05 5.05V 12.5 13.7 Unit mApp mVpp
with external filter 470µF) =1.2 Viinh modules parallel
°C/W
Note: when output current less than 1.2A, output ripple voltage increases discontinuous operation.
GS-R1005
CONNECTION DIAGRAM MECHANICAL DATA
Package Dimensions (inches).
DESCRIPTION
10,11 Function Input Inhibit Vout Sense Sync Parallel Sense Output Description Return input voltage source. Internally connected 10,11. converter (Enable) when this unconnected voltage applied lower than 1.2V. converter (Inhibit) control voltage range 24V. Input voltage; recommended maximum voltage 36V. External capacitor between mandatory; recommended value 470µF/50V switching application. output voltage. Senses remote load high side. connected when remote sense used. Synchronization output. figures 1,2,3,4. Open when used. Parallel output. figures 1,2,3,4. Open when used. Senses remote load return. connected 10,11 when remote sense used. parallel configuration, take care connect pins together (see figures 1,2,3,4). Return output current path. Internally connected
GS-R1005
USER NOTES Input Voltage recommended operating maximum input voltage inclusive ripple voltage. external ESR, high ripple current capacitor located close module possible mandatory; recommended value 470µF/50V. Softstart avoid heavy inrush current output voltage rise time typically 15ms condition load. Remote Sensing remote voltage sense compensation range total drop 500mV equally shared between load connecting wires. good practice shield sensing wires avoid oscillations. connection diagram figures Parallel Operation increase available output regulated power, module features parallel connection possibility with equal current sharing maximum deviation (two modules parallel). connection diagram figures Module Protection module protected against occasional permanent shortcircuits output pins ground, well against output current overload. uses current limiting protection circuitry, avoiding latch-up problems with certain types loads.
Figure
Figure
GS-R1005
Figure Figure
Thermal characterist ics: choose heat-sink Sometimes GS-R1005 requires external heat-sink dependingon both operatingtemperature conditions power. Before entering into calculations details, some basic concepts will explained better understand problem. thermal resistance between points represented their temperature difference front specified dissipated power, expressed Degree Centigrade Watt (°C/W). GS-R1005 thermal resistance case ambient 7.5°C/W. This means that internal power dissipation will bring case temperature 7.5°C above ambient temperature. maximum case temperature, which module provides 10A, 75°C (see fig. Let's suppose have GS-R1005 that delivers load current ambient temperature 40°C.
dissipated power this operating condition about 10.2W typical efficiency 83%), case temperature module will
TCase TAmb 10.2 116.8
This value exceeds maximum allowed temperature external heat-sink must added. this purpose four holes (see mechanical drawing) provided metal surface module. calculate this heat-sink, let's first determine what total thermal resistance should TCaseMAX Tamb 3.42°C 10.2 This value resulting value additional heatsink thermal resistance.
GS-R1005
Figure Efficiency Output Current.
Typ. eff.
Figure Output Current case.
GS-R1005
following list help designer select proper commercially available heat-sink. Sometimes more convenient custom made heat-sink that experimently designed tested.
Manufacturers ALUTRONIC
Type PR139 PR140 PR159
Height (mm) 25.5 33.5 25.5
(°C/W)
ASSMAN
V5440 V5805 V5280
AAVID
60885 60660 62355
AUSTERLITZ
KS50 KS100.3
FISCHER
SK16 SK52
BOSARI
LZ50
THERMALLOY
6155 6601 6176 6320
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specification mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized critical components life support devices systems without express written approval SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil China France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A.

STEP-DOWN SWITCHING REGULATOR Type GS-R1005 FEATURES Wide in

Top Searches for this datasheet

Other recent searches