參數(shù)資料
型號(hào)： MAX6852AEE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 顯示驅(qū)動(dòng)器
英文描述： 4-Wire Interfaced, 5 x 7 Matrix Vacuum- Fluorescent Display Controller
中文描述： VACUUM FLUOR DISPLAY DRIVER, PDSO16
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AA, QSOP-16
文件頁(yè)數(shù)： 7/32頁(yè)
文件大小： 489K
代理商： MAX6852AEE
The cursor segment is controlled differently. A single
register selects one digit
’
s cursor from the entire dis-
play, and that can be lit either continuously or blinking.
All the other digits
’
cursors are off.
The designations of DP, cursor, and annunciator are
interchangeable. For example, consider an application
requiring only one DP lit at a time, but the DP needs to
blink. The DP function does not have blink capability.
Instead, the DP segments on the display are routed
(using the output map) to the cursor function. In this
case, the DP segments are controlled using the cursor
register.
The output of the controller is a 4-wire serial stream that
interfaces to industry-standard, shift-register, high-volt-
age grid/anode VFD tube drivers (Figure 4). This inter-
face uses three outputs to transfer and latch grid and
anode data into the tube drivers, and a fourth output
that enables/disables the tube driver outputs (Figure 5).
The enable/disable control is modulated by the
MAX6852 for both PWM intensity control and interdigit
blanking, and disables the tube driver in shutdown. The
controller multiplexes the display by enabling each grid
of the VFD in turn for 100μs (OSC = 4MHz) with the cor-
rect segment (anode) data. The data for the next grid is
transferred to the tube drivers during the display time of
the current grid.
The controller uses an internal output map to match any
tube-driver
’
s shift-register grid/anode order, and is
therefore compatible with all VFD internal chip-in-glass
or external tube drivers.
The MAX6852 provides five high-current output ports,
which can be configured for a variety of functions:
The PUMP output can be configured as either an
80kHz (OSC = 4MHz) clock intended for DC-DC con-
verter use, the 4-wire serial interface
’
s DOUT data out-
put, or a general-purpose logic output.
The PHASE1 and PHASE2 outputs can be individually
configured as either 10kHz PWM outputs (OSC =
4MHz) intended for filament driving, blink status out-
puts, or general-purpose logic outputs.
M
4-Wire Interfaced, 5
7 Matrix Vacuum-
Fluorescent Display Controller
_______________________________________________________________________________________
7
GRID 1
GRID 2
GRID 3
GRID 4
GRID 5
GRID 6
GRID 7
GRID 8
Figure 2. Example of a Two-Digits-per-Grid Display (8 Grids, 16 Digits)
°
C
°
F pH mW
4 ANNUNCIATOR SEGMENTS
DECIMAL POINT (DP) SEGMENT
CURSOR SEGMENT
5 x 7 MATRIX CHARACTER
WITH 35 SEGMENTS
Figure 3. Digit Structure with 5
7 Matrix Character, DP
Segment, Cursor Segment, Four Annunciators
MAX6852
VFCLK
VFDOUT
VFLOAD
DIN
SCLK
VFBLANK
VFDIN
VFCLK
VFLOAD
VFBLANK
MICROCONTROLLER
VFD TUBE DRIVER
CS
DOUT
SCLK
CS
V
GRID/
ANODE
DRIVERS
Figure 4. Connection of the MAX6852 to VFD Driver and VFD Tube
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6852AEE+ 功能描述:VFD驅(qū)動(dòng)器 Integrated Circuits (ICs) PMIC - Display Drivers - IC VFD CTRLR MATRIX 16QSOP RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6852AEE+T 功能描述:VFD驅(qū)動(dòng)器 Integrated Circuits (ICs) PMIC - Display Drivers - IC VFD CTRLR MATRIX 16QSOP RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6852AEE-T 功能描述:VFD驅(qū)動(dòng)器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6853AEE 功能描述:VFD驅(qū)動(dòng)器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6853AEE+T 功能描述:VFD驅(qū)動(dòng)器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
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