INVC657
INVC657 is BACKLIGHT Inverters manufactured by Hitachi Semiconductor.
M/S
(HEL) DATE: 25.DEC.2003 Design Department Ome Manufacturing Operation Hitachi Lighting,Ltd 16-2,shinmachi 6-chome,Ome-Shi Tokyo 198-8611,JAPAN TEL.0428-31-1211 FAX.0428-31-1224
CUSTOMER’S ACCEPTANCE SPECIFICATIONS
(Backlight Inverters for cold cathode fluorescent lamp)
TYPE:INVC657
CONTENTS No 1 2 3 4 5 6 7 ITEM Cover Record of Revision 1.Scope 2.General Specification 3.Erectorical Characteristics 4.Reliability 5.Structures 6.Structures and Dimensions 7.Precautions in Design Page 1 2 3 4-6 6 7 8-9
Accepted by
Proposed by
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RECORD OF REVISION DATE 25.DEC.2003 PAGE SUMMARY NEW Date Code & Rev.
1. Scope 1.1 This specification shall apply to inverter INVC657 to operate a cold cathode fluorescent lamp in the liquid-crystal module(LCM). 1.2 This inverter INVC657 is designed and adjusted for TX14D LCD-module. (Hitachi’s type name) 2. General Specifications General specifications and condition for use are shown below. Item Cooling condition Efficiency Weight 75 % min 8.8g typ Specification Free air flow
Ambient temperature Operating
- 10~70deg (direct ambient air of Inverter board) Stock -20~85deg Humidity Corrosive gasses Audible sound level 90 % RH.max. Not acceptable 35d B max. at 30cm
3. Electrical Characteristics 3.1.Maximum ratings Items Input voltage Min. --Typ. --Max. 14.0 unit V Remarks
3.2.Operationg Characteristics Item Input voltage Input current Min 10.8 280 40 Output current 3.5 1.3 Main frequency 57 Typ 12.0 320 60 4.0 1.8 67 Max 13.2 360 80 4.5 2.3 77 Unit V m A m A m A m A k Hz at 12.0V MAX at 12.0V MIN at 12.0V MAX at 12.0V MIN at 12.0V MAX Remarks
All characteristics are measured at TX14D.
(1) All characteristics are measured by our certain test equipment. The measurement of condition should be stable lighting (more than 30 minutes after startup :at 25+/-1 deg and no breath of wind) (The measurement of input rush current is exception.) (2) The electrical characteristics are measured as we show on measurement...