參數資料
型號: LM2437
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: Monolithic Triple 7.5 ns CRT Driver
中文描述: 3 CHANNEL, VIDEO AMPLIFIER, PSFM9
封裝: POWER, STAGGERED, PLASTIC, TO-220, 9 PIN
文件頁數: 6/10頁
文件大?。?/td> 529K
代理商: LM2437
Application Hints
(Continued)
good example of a layout that can be used as a guide for fu-
ture layouts. Note the location of the following components:
C55— V
bypass capacitor, located very close to pin 4
and ground pins
C43, C44— V
BB
bypass capacitors, located close to pin
8 and ground
C53–C56— V
bypass capacitors, near LM2437 and
V
CC
clamp diodes. Very important for arc protection.
The routing of the LM2437 outputs to the CRT is very critical
to achieving optimum performance. Figure 12 shows the
routing and component placement from pin 1 of the LM2437
to the blue cathode. Note that the components are placed so
that they almost line up from the output pin of the LM2437 to
the blue cathode pin of the CRT connector. This is done to
minimize the length of the video path between these two
components. Note also that D14, D15, R29 and D13 are
placed to minimize the size of the video nodes that they are
attached to. This minimizes parasitic capacitance in the
video path and also enhances the effectiveness of the pro-
tection diodes. The anode of protection diode D14 is con-
nected directly to a section of the the ground plane that has
a short and direct path to the LM2437 ground pins. The cath-
ode of D15 is connected to V
very close to decoupling ca-
pacitor C55 (see Figure 12) which is connected to the same
section of the ground plane as D14. The diode placement
and routing is very important for minimizing the voltage
stress on the LM2437 during an arcover event. Lastly, notice
that S3 is placed very close to the blue cathode and is tied
directly to CRT ground.
www.national.com
6
相關PDF資料
PDF描述
LM2437T Monolithic Triple 7.5 ns CRT Driver
LM2438 Monolithic Triple 13.5 ns CRT Driver
LM2438T Monolithic Triple 13.5 ns CRT Driver
LM2439 Monolithic Triple 9.5 ns CRT Driver
LM2439T Monolithic Triple 9.5 ns CRT Driver
相關代理商/技術參數
參數描述
LM2437NS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Driver
LM2437T 制造商:OC White Company 功能描述:CRT DRVR 85V 9-Pin(9+Tab) TO-220
LM2437T/NOPB 功能描述:IC DRIVER MONOLITHIC TO-220-9 RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅動器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7(矩陣) 接口:串行 數字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP(0.154",3.90mm 寬) 供應商設備封裝:16-QSOP 包裝:帶卷 (TR)
LM2438 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Monolithic Triple 13.5 ns CRT Driver
LM2438T 功能描述:IC DRIVER MONOLITHIC TO-220-9 RoHS:否 類別:集成電路 (IC) >> PMIC - 顯示器驅動器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7(矩陣) 接口:串行 數字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP(0.154",3.90mm 寬) 供應商設備封裝:16-QSOP 包裝:帶卷 (TR)