参数资料
| 型号： | EL7640AILTZ-T7 |
| 厂商： | Intersil |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | IC CONV DC/DC TFT-LCD 32-QFN |
| 标准包装： | 1,000 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 2.6 V ~ 5.5 V |
| 输出数： | 3 |
| 输出电压： | 5.5 V ~ 20 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
EL7640A, EL7641A, EL7642A
Typical Performance Curves
(Continued)
INPUT VOLTAGE
V BOOST
V OFF
INPUT
OUTPUT
V ON
TIME (50μs/DIV)
TIME (20ms/DIV)
FIGURE 13. START-UP SEQUENCE
JEDEC JESD51-3 AND SEMI G42-88
FIGURE 14. OP AMP RAIL-TO-RAIL INPUT/OUTPUT
JEDEC JESD51-7 HIGH EFFECTIVE
THERMAL CONDUCTIVITY TEST BOARD -
QFN EXPOSED DIEPAD SOLDERED TO
0.8
(SINGLE LAYER) TEST BOARD
3
PCB PER JESD51-5
0.7
0.6
0.5
758mW
QFN32
θ JA =125°C/W
2.5 2.857W
2
QFN32
θ JA =35°C/W
0.4
0.3
0.2
0.1
0
1.5
1
0.5
0
0
25
50
75 85 100
125
150
0
25
50
75 85 100
125
150
AMBIENT TEMPERATURE (°C)
FIGURE 15. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Applications Information
AMBIENT TEMPERATURE (°C)
FIGURE 16. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
TABLE 1. RECOMMENDED COMPONENTS
The EL7640A, EL7641A, EL7642A provide a highly
integrated multiple output power solution for TFT-LCD
applications. The system consists of one high efficiency
boost converter and two low cost linear-regulator controllers
(V ON and V OFF ) with multiple protection functions. The
block diagram of the whole part is shown in Figure 17.
DESIGNATION
C 1 , C 2 , C 3
D 1
DESCRIPTION
10μF, 16V X5R ceramic capacitor (1210)
TDK C3216X5R0J106K
1A 20V low leakage schottky rectifier
(CASE 457-04)
ON SEMI MBRM120ET3
Table 1 lists the recommended components.
The EL7640A, EL7641A, EL7642A integrate an N-channel
D 11 , D 12 , D 21 200mA 30V schottky barrier diode (SOT-23)
Fairchild BAT54S
MOSFET in boost converter to minimize the external
component counts and cost. The V ON , V OFF linear-
regulators are independently regulated by using external
resistors. To achieve higher voltage than V BOOST , one or
multiple stage charge pumps may be used.
9
L 1
Q 11
Q 21
6.8μH 1.3A Inductor
TDK SLF6025T-6R8M1R3-PF
200mA 40V PNP amplifier (SOT-23)
Fairchild MMBT3906
200mA 40V NPN amplifier (SOT-23)
Fairchild MMBT3904
FN6270.0
May 15, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EL7640ILTZ | 功能描述:直流/直流开关调节器 EL7640ILTZ TFT-LCD D DC-DC W/INTEGRTD AMP RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| EL7640ILTZ-T13 | 功能描述:直流/直流开关调节器 EL7640ILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| EL7640ILTZ-T7 | 功能描述:直流/直流开关调节器 EL7640ILTZ-T7 TFT-LC DC-DC W/INTEGRTD AMP RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| EL7641 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:TFT-LCD DC/DC with Integrated Amplifiers |
| EL7641AILTZ | 功能描述:LCD 驱动器 EL7641AILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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