công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
STV7801S bảng dữ liệu(PDF) 5 Page - STMicroelectronics |
|
STV7801S bảng dữ liệu(HTML) 5 Page - STMicroelectronics |
5 / 18 page STV7801S 5/18 4 - CIRCUIT DESCRIPTION STV7801 is a monolithic integrated circuit imple- mented in ST Microelectronics BCD proprietary technology designed as a switched power supply generator for data drivers in a Plasma Display Panel (P.D.P.) application. The high load drive capability of STV7801 reduces the number of devices necessary to drive a com- plete PDP (4 to 6 devices for a 42" VGA 16/9 PDP monitor). STV7801 high current drive capability provides a high power recovery efficiency coefficient superior to 85% on constant capacitive load. The structure of the output stage is implemented with 2 DMOS transistors to minimise the die size. External com- ponents like bootstrap capacitor can also be im- plemented to increase the performances of the cir- cuit. STV7801 integrates level shifters driven with 5V CMOS compatible levels. This feature reduces the number of discrete components such as voltage translators. STV7801 integrates several protections like output over-voltage, timing control and over-temperature to increase the reliability of the system. Over-voltage protection consists in clamping di- odes connected between Vpp, Vssp and critical nodes of the devices. Timing control consists in a monitoring of the out- put stage control signals to avoid any cross-con- duction. Over-temperature protection is activated when junction temperature reaches the threshold values fixed internally and sets the device in tri-state mode. STV7801 can drive several data drivers connected to column electrodes of the panel. The maximum amount of data drivers is given by the Power Re- covery Current of the device and then the maxi- mum rise/fall time of the signal. The rise and fall time of the AC supply signal is adjusted by the val- ue of the inductance connected to the panel ca- pacitance through the data drivers. The amount of STV7801 needed to generate the AC supply can be reduced by increasing the rise/fall time of the generated AC supply. 5 - CONTROL SIGNALS TRUTH TABLE 18 Vpp Supply High Voltage Supply 19 Vpp Supply High Voltage Supply 20 Vssub Ground Substrate Ground Pin Number Pin Name Function Description HL-Tr LH-Tr L-Clmp H-Clmp Device Output Comments L H L L Low to High Transition Power Saving Mode H L L L High to Low Transition Power Saving Mode LX L H Vpp Power Supply Clamp XLH L Vssp Power Ground Clamp X X H H Tri-State Protection Mode XHHX Tri-State Protection Mode H X X H Tri-State Protection Mode L L L L Tri-State Protection Mode |
Số phần tương tự - STV7801S |
|
Mô tả tương tự - STV7801S |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |