STM86312 STMicroelectronics, STM86312 Datasheet - Page 7
STM86312
Manufacturer Part Number
STM86312
Description
IC DRIVER/CONTROLLER VFD 44PQFP
Manufacturer
STMicroelectronics
Datasheet
1.STM86312.pdf
(24 pages)
Specifications of STM86312
Display Type
Vacuum Fluorescent (VF)
Configuration
16 Segments
Interface
Serial
Digits Or Characters
4 Digits
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-MQFP, 44-PQFP
Driver Type
VFD Drivers
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Output Current
25 mA
Minimum Operating Temperature
- 40 C
For Use With
497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Supply
-
Lead Free Status / Rohs Status
No
Other names
497-4363
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
STM86312
Maximum power consumption P
dissipation + dynamic power consumption.
Where segment current = 3 mA, grid current = 15 mA, and LED current = 20 mA,
VFD driver dissipation = number of segments x 6 + number of grids/(number of grids + 1) x
30 (mW)
R
LED driver dissipation = number of LEDs x 20 (mW)
Dynamic power consumption = V
Example
Where V
VFD driver dissipation = 16 x 6 + 6/7 x 30 = 122
R
LED driver dissipation = 4 x 20 = 80
Dynamic power consumption = 5 x 5 = 25
Total 553 mW.
L
L
dissipation = (V
dissipation = 30
EE
= -25 V, V
DD
2
/50 x 17 = 306
DD
- V
= 5 V, and in 16-segment and 6-digit modes,
EE
)
2
/50 x (segment + 1) (mW)
MAX
DD
x 5 (mW)
= VFD driver dissipation + R
L
dissipation + LED driver
Maximum rating
7/24