BU21023GUL_16 Datasheet, PDF (6/21 Pages) Rohm – Resistive Type Touch Screen Controller ICs

BU21023GUL BU21023MUV BU21024FV-M
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Conditions
Power Supply Voltage
VDD
Input Voltage
VIN
BU21023GUL
Power Dissipation
Pd
BU21023MUV
-0.3 to +4.5
V
-0.3 to VDD+0.3
V
0.83 ^{(Note 1)}
W
0.70 ^{(Note 2)}
W
Storage Temperature Range
Tstg
-50 to +125
°C
(Note1) Derate by 8.30 mW /°C centigrade when ambient temperature exceeds 25°C. Measured using PCB measuring 50mm x58mm.
(Note 2) Derate by 7.04mW /°C centigrade when ambient temperature exceeds 25°C. Measured using PCB(1 layer) measuring 74.2x74.2x1.6t mm
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.
Recommended Operating Conditions
Parameter
Rating
Symbol
Unit
Min
Typ
Max
Power Supply Voltage
VDD
2.70
3.00
3.60
V
Conditions
Digital Core Power Supply
DVDD
1.62
1.80
1.98
V DVDD_EXT=H
Operating Temperature Range
Topr
-20
+25
+85
°C
Note: The BU21023 controllers can be operated with a single 3V VDD supply.
It is also possible to supply 1.8V DVDD from an external source if the DVDD_EXT pin is connected to logic high.
Electrical Characteristics (Ta=25°C, VDD=3.00V)
Parameter
Symbol
Min
Limit
Typ
Unit
Max
Low-Level Input Voltage
VIL
-0.5
-
0.2xVDD
V
Conditions
High-Level Input Voltage
VIH
0.8xVDD
-
VDD+0.5
V
Low-Level Output Voltage
VOL
-
-
0.4
V
High-Level Output Voltage
VOH
VDD-0.4
-
-
V
Standby Current
IST
-
-
1
µA RSTB=L
Sleep Current1
ICC1
-
60
100
µA DVDD_EXT =L
Sleep Current2
ICC2
-
10
20
µA DVDD_EXT =H
Operating Current
IDD
-
4
6
mA No Load
Oscillation Frequency
Freq
18
20
22
MHz
Resolution
Ad
1024x1024
Bit
Differential Non-Linearity Error
DNL
-3.0
-
+3.0 LSB
Integral Non-Linearity Error
INL
-3.0
-
+3.0 LSB
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TSZ22111・15・001
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TSZ02201-0L5L0F300840-1-2
7.June.2016 Rev.004