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LT1184CS#TR PDF预览

LT1184CS#TR

更新时间: 2024-11-23 19:54:47
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
24页 324K
描述
LT1184 - CCFL/LCD Contrast Switching Regulators; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C

LT1184CS#TR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP16,.25
针数:16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.12模拟集成电路 - 其他类型:FLUORESCENT LIGHT CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:30 V最小输入电压:3 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:9.9 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:100 °C最低工作温度:
最大输出电流:1.25 A标称输出电压:1.244 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):235
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):9.5 mA
表面贴装:YES切换器配置:SINGLE
最大切换频率:200 kHz技术:BIPOLAR
温度等级:OTHER端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3.9 mmBase Number Matches:1

LT1184CS#TR 数据手册

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LT1182/LT1183/LT1184/LT1184F  
CCFL/LCD Contrast  
Switching Regulators  
U
FEATURES  
DESCRIPTION  
The LT®1182/LT1183 are dual current mode switching  
regulators that provide the control function for Cold Cath-  
odeFluorescentLighting(CCFL)andLiquidCrystalDisplay  
(LCD) Contrast. The LT1184/LT1184F provide only the  
CCFLfunction.TheICsincludehighcurrent,highefficiency  
switches, an oscillator, a reference, output drive logic,  
control blocks and protection circuitry. The LT1182 per-  
mits positive or negative voltage LCD contrast operation.  
The LT1183 permits unipolar contrast operation and pins  
out an internal reference. The LT1182/LT1183 support  
grounded and floating lamp configurations. The LT1184F  
supports grounded and floating lamp configurations. The  
LT1184 supports only grounded lamp configurations. The  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Wide Input Voltage Range: 3V to 30V  
Low Quiescent Current  
High Switching Frequency: 200kHz  
CCFL Switch: 1.25A, LCD Switch: 625mA  
Grounded or Floating Lamp Configurations  
Open-Lamp Protection  
Positive or Negative Contrast Capability  
U
APPLICATIONS  
Notebook and Palmtop Computers  
Portable Instruments  
Automotive Displays  
Retail Terminals  
U
TYPICAL APPLICATION  
90% Efficient Floating CCFL Configuration with Dual Polarity LCD Contrast  
UP TO 6mA  
LAMP  
ALUMINUM ELECTROLYTIC IS RECOMMENDED FOR C3B WITH AN  
ESR 0.5TO PREVENT DAMAGE TO THE LT1182 HIGH-SIDE  
SENSE RESISTOR DUE TO SURGE CURRENTS AT TURN-ON.  
CCFL BACKLIGHT APPLICATION CIRCUITS CONTAINED IN THIS  
DATA SHEET ARE COVERED BY U.S. PATENT NUMBER 5408162  
AND OTHER PATENTS PENDING  
C2  
27pF  
3kV  
10  
6
C1 MUST BE A LOW LOSS CAPACITOR, C1 = WIMA MKP-20  
Q1, Q2 = ZETEX ZTX849 OR ROHM 2SC5001  
L1 = COILTRONICS CTX210605  
L1  
3
2
1
5
4
BAT  
8V TO 28V  
L2 = COILTRONICS CTX100-4  
+
C3B  
+
+
C3A  
2.2µF  
35V  
2.2µF  
L3 = COILTRONICS CTX02-12403  
*DO NOT SUBSTITUTE COMPONENTS  
COILTRONICS (407) 241-7876  
C5  
EITHER NEGCON OR POSCON  
MUST BE GROUNDED.  
GROUNDING NEGCON GIVES  
VARIABLE POSITIVE CONTRAST  
FROM 10V TO 30V.  
GROUNDING POSCON GIVES  
VARIABLE NEGATIVE CONTRAST  
FROM –10V TO 30V.  
R2  
35V  
1000pF  
220k  
R1  
C1*  
0.068µF  
750Ω  
0µA TO 45µA ICCFL  
CURRENT GIVES  
0mA TO 6mA  
BULB CURRENT.  
THIS IS EQUAL TO  
0% TO 90% DUTY  
C12  
2.2µF  
35V  
R3  
100k  
Q2*  
Q1*  
POSCON  
D5  
D3  
L3  
BAT85  
CYCLE FOR THE  
PWM SIGNAL.  
1N5934A  
24V  
6
9
C11 +  
22µF  
L2  
100µH  
4
D1  
1N5818  
35V  
D2  
1N914  
R4  
1
2
3
4
5
6
7
8
16  
2
CCFL  
PGND  
CCFL V  
46.4k  
SW  
R5, 43.2k, 1%  
V (PWM)  
0V TO 5V  
1kHz PWM  
1%  
NEGCON  
15  
14  
13  
12  
11  
10  
9
I
BULB  
BAT  
N = 1:2  
CCFL  
D4  
1N914  
+
C6  
2.2µF  
DIO  
C7, 1µF  
R12  
20k  
LT1182  
C
V
IN  
3V  
CCFL V  
AGND  
SHDN  
ROYER  
+
C4  
2.2µF  
R13  
8.45k  
1%  
V
IN  
SHUTDOWN  
FBP  
FBN  
C8, 0.68µF  
C9, 0.01µF  
R14  
1.21k  
1%  
C10  
0.01µF  
LCD V  
LCD  
C
R7, 10K  
LCD V  
SW  
PGND  
R11, 20k, 1%  
R9, 4.99k, 1%  
R10, 10k, 1%  
5V  
1182/3 TA01  
1

LT1184CS#TR 替代型号

型号 品牌 替代类型 描述 数据表
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