- 您现在的位置：买卖IC网 > PDF目录20170 > MAX6920AWP+T (Maxim Integrated)IC DRVR VFD TUBE SRL 20-SOIC PDF资料下载
参数资料
| 型号： | MAX6920AWP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC DRVR VFD TUBE SRL 20-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 显示器类型： | 真空荧光 (VF) |
| 接口： | 4 线串行 |
| 电流 - 电源： | 1mA |
| 电源电压： | 8 V ~ 76 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
12-Output, 76V, Serial-Interfaced
VFD Tube Driver
the shift register outputs when LOAD is high, and latch-
V BB
es the current state on the falling edge of LOAD.
Each driver output is a slew-rated controlled CMOS
SLEW- RATE
CONTROL
40 ?
TYPICAL
750 ?
TYPICAL
OUT_
push-pull switch driving between V BB and GND. The
output rise time is always slower than the output fall
time to avoid shoot-through currents during output tran-
sitions. The output slew rates are slow enough to mini-
mize EMI, yet are fast enough so as not to impact the
typical 100μs digit multiplex period and affect the dis-
play intensity.
Initial Power-Up and Operation
An internal reset circuit clears the internal registers of
Figure 2. MAX6920 CMOS Output Driver Structure
Detailed Description
The MAX6920 is a VFD tube driver comprising a 4-wire
serial interface driving 12 high-voltage Rail-to-Rail ?
output ports. The driver is suitable for both static and
multiplexed displays.
The output ports feature high current-sourcing capabili-
ty to drive current into grids and anodes of static or
multiplex VFDs. The ports also have active current sink-
ing for fast discharge of capacitive display electrodes
the MAX6920 on power-up. All outputs OUT0 to OUT11
and the interface output DOUT initialize low regardless
of the initial logic levels of the CLK, DIN, BLANK, and
LOAD inputs.
4-Wire Serial Interface
The MAX6920 uses a 4-wire serial interface with three
inputs (DIN, CLK, LOAD) and a data output (DOUT).
This interface is used to write output data to the
MAX6920 ( Figure 3) ( Table 1). The serial interface data
word length is 12 bits, D0 – D11.
The functions of the four serial interface pins are:
in multiplexing applications.
The 4-wire serial interface comprises a 12-bit shift reg-
ister and a 12-bit transparent latch. The shift register is
written through a clock input CLK and a data input DIN
and the data propagates to a data output DOUT. The
data output allows multiple drivers to be cascaded and
operated together. The output latch is transparent to
?
?
CLK input is the interface clock, which shifts data
into the MAX6920 ’ s 12-bit shift register on its rising
edge.
LOAD input passes data from the MAX6920 ’ s 12-
bit shift register to the 12-bit output latch when
LOAD is high (transparent latch), and latches the
data on LOAD ’ s falling edge.
t CSW
LOAD
t CL
t CH
t CP
t CSH
CLK
t DH
t DS
DIN
D11
D10
D1
D0
t DO
DOUT
Figure 3. 4-Wire Serial Interface Timing Diagram
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
D11
6
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| VE-22T-CX-F4 | CONVERTER MOD DC/DC 6.5V 75W |
| EBA15DRSD-S288 | CONN EDGECARD 30POS .125 EXTEND |
| VE-22T-CX-F3 | CONVERTER MOD DC/DC 6.5V 75W |
| GBM06DCCT-S189 | CONN EDGECARD 12POS R/A .156 SLD |
| VE-22T-CX-F2 | CONVERTER MOD DC/DC 6.5V 75W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6921AQI | 功能描述:VFD驱动器 12-Output 76V Serial VFD Tube Driver RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6921AQI+ | 功能描述:VFD驱动器 12-Output 76V Serial VFD Tube Driver RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6921AQI+T | 功能描述:VFD驱动器 12-Output 76V Serial VFD Tube Driver RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6921AQI-T | 功能描述:VFD驱动器 12-Output 76V Serial VFD Tube Driver RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6921AUI | 功能描述:VFD驱动器 12-Output 76V Serial VFD Tube Driver RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。