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參數(shù)資料
| 型號： | D305A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Electroluminescent Lamp Driver IC |
| 中文描述： | 電致發(fā)光燈驅(qū)動IC |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 401K |
| 代理商： | D305A |
8
VII. Fast Recovery Diode
Energy stored by the coil is eventually forced through the external diode to power the switched H-bridge
network. A fast recovery diode, such as BAS21, is recommended for this function for optimum operation.
VIII. Printed Circuit Board Layout
The high frequency operation and very high voltage output of the D305A makes printed circuit board layout
important for minimizing electrical noise. Maintain the IC connections to the inductor as short as possible.
Connect the GND of the device directly to the GND plane of the PCB. Keep the GND pin of the device and
the ground leads of the Cs, CLF, and CHF less than 5mm apart. If using bypass capacitors to minimize ripple
on the supply lines, keep the bypass caps as close as possible to the Vbat lead of the inductor and the Vcc pin.
IX. Split Voltage Supply
A split supply voltage is recommended to drive the D305A. To operate the on-chip logic, a regulated voltage
supply (Vcc) ranging from 2.0V to 6.5V is applied. To supply the D305A with the necessary power to drive
an EL lamp, another supply voltage (Vbat) with higher current capability is applied to the inductor. The
voltage range of Vbat is determined by the following conditions: user application, lamp size, inductor selection,
and power limitations of the battery.
An example of the split supply configuration is shown below. This example shows a regulated 3.0V applied
to the Vcc pin, and a Vbat voltage that may range from 3.6V to 6.2V or regulated at 5.0V. The enable voltage
is in the range of 2.0V to 3.0V. This is a typical setup used in PDA applications.
Va
Cs
Vb
E
Vcc
L
GND
Rf
CLF
CHF
D305A
1
2
3
4
5
10
9
8
7
6
OFF
ON
2.2 nF
(200 V)
180 pF
10 k
100k
100pF
3.0 V
8.2 nF
BAS21
470 uH TDK SLF7032
PDA LCD
EL Lamp
3.6V - 6.2V Battery
or 5.0V Regulated
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D306A | Electroluminescent Lamp Driver IC |
| D30E60 | Fast Switching EmCon Diode |
| D30L60 | CAP 100PF 200V 10% X7R RAD.20 .20X.20 TR-16 M-MIL-PRF-39014 STANDOFF |
| D30SC4 | Schottky Rectifiers (SBD) (40V 30A) |
| D30SC4M | Schottky Rectifiers (SBD) (40V 30A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| D305EWA | 功能描述:LED 顯示器和配件 Orange Dual 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| D305RP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Short Circuit Protected Regulated, 3W SIP DC/DC Converters |
| D305RW | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Single & Dual Output 3W SIP, Wide Input DC/DC Converters |
| D30-6 | 制造商:Visual Communications Company (VCC) 功能描述:T-1 1/4 Bi-Pin Lamp |
| D-306-03 | 功能描述:熱收縮管和套管 D-306 SER 8.76MM RoHS:否 制造商:3M Electronic Specialty 類型:Tubing 材料:Polyolefin, Flexible 顏色:Clear 最低收縮溫度:+ 100 C 恢復(fù)直徑: 長度:100 ft 內(nèi)徑:1.5 in 收縮率:2:1 |
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