BU21026MUV Datasheet, PDF (6/23 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21026MUV
Absolute Maximum Ratings
PARAMETER
SYMBOL
RATING
UNIT
Power supply voltage
VDD
-0.3 to 4.5
V
Input voltage
VIN
-0.3 to VDD+0.3
V
Storage temperature range
Tstg
-50 to 125
℃
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Thermal Resistance^{(Note 1)}
PARAMETER
SYMBOL
Thermal Resistance (Typ)
1s^{(Note 3)}
2s2p^{(Note 4)}
UNIT
VQFN020V4040
Junction to Ambient
Junction to Top Characterization Parameter^{(Note 2)}
θJA
ΨJT
153.9
13
37.4
°C/W
7
°C/W
(Note 1)Based on JESD51-2A(Still-Air)
(Note 2)The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside
surface of the component package.
(Note 3)Using a PCB board based on JESD51-3.
Layer Number of
Measurement Board
Material
Board Size
Single
FR-4
114.3mm x 76.2mm x 1.57mmt
Top
Copper Pattern
Footprints and Traces
Thickness
70μm
(Note 4)Using a PCB board based on JESD51-5, 7.
Layer Number of
Measurement Board
Material
4 Layers
FR-4
Board Size
114.3mm x 76.2mm x 1.6mmt
Top
2 Internal Layers
Copper Pattern
Thickness
Copper Pattern
Thickness
Footprints and Traces
70μm
74.2mm x 74.2mm
(Note 5) This thermal via connects with the copper pattern of all layers..
35μm
Thermal Via^{(Note 5)}
Pitch
Diameter
1.20mm
Φ0.30mm
Bottom
Copper Pattern
74.2mm x 74.2mm
Thickness
70μm
Recommended Operating Conditions
PARAMETER
SYMBOL
Power supply voltage
Operating temperature range
VDD
Tj
MIN.
1.65
-30
TYP.
3.00
25
MAX.
3.60
85
UNIT
V
℃
Electrical Characteristics (Unless otherwise specified Tj=25[℃], VDD=3.00[V], GND=0.00[V])
PARAMETER
SYMBOL MIN. TYP. MAX. UNIT
CONDITION
Low-level input voltage
High-level input voltage
Low-level output voltage
High-level output voltage
A/D converter resolution
Differential non-linearity error
Integral non-linearity error
Internal clock frequency
Active current
Standby current
VIL
VIH
VOL
VOH
AD
DNL
INL
Freq
Idd
Ist
-0.3
- 0.3xVDD V
0.7xVDD - VDD+0.3 V
0
-
0.2
V IL = 3.6mA
VDD-0.2 -
VDD
V IL = -3.6mA
-
-
12
Bits Programmable 8/12 bits
-3.5
-
3.5
LSB
-5
-
5
LSB
2.6
4.0
5.1
MHz
-
120
450
uA 8.2kSPS (operation )
-
-
0.8
uA After reset releasing
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TSZ02201-0L5L0FF00890-1-2
4.Aug.2016 Rev.001