sx8639 Semtech Corporation, sx8639 Datasheet - Page 7

• Manufacturer Part Number: sx8639
• Description: Low Power, Capacitive Button And Wheel Touch Controller 8 Sensors With Enhanced Led Drivers And Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
2 E
2.1 Absolute Maximum Ratings
Stresses above the values listed in “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these, or any other conditions beyond the “Recommended
Operating Conditions”, is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability
(i) Tested to JEDEC standard JESD22-A114
(ii) Tested to JEDEC standard JESD78
2.2 Recommended Operating Conditions
(iii) Performance for 2.6V < VDD < 2.7V might be degraded.
(iv) Operation is not guaranteed below 2.6V. Should VDD briefly drop below this minimum value, then the SX8639 may
require;
- a hardware reset issued by the host using the RESETB pin
- a software reset issued by the host using the I2C interface
(v) In the event the host processor is reset or undergoes a power OFF/ON cycle, it is recommended that the host also resets
the SX8639 and assures that parameters are re-written into the SPM (should these differ to the parameters held in NVM).
2.3 Thermal Characteristics
(
Revision 7_8, September 10
Parameter
Supply Voltage
Supply Voltage Drop
Supply Voltage for NVM programming
Ambient Temperature Range
Parameter
Thermal Resistance - Junction to Ambient
vi) Static airflow
Parameter
Supply Voltage
Input voltage (non-supply pins)
Input current (non-supply pins)
Operating Junction Temperature
Reflow temperature
Storage temperature
ESD HBM (Human Body model)
Latchup
LECTRICAL
.
(ii)
(iii, iv, v)
C
HARACTERISTICS
(i)
Table 3
Table 2
(vi)
Table 4
(8 sensors) with Enhanced LED Drivers and Proximity Sensing
Recommended Operating Conditions
© 2010 Semtech Corp.
Low Power, Capacitive Button and Wheel Touch Controller
Absolute Maximum Ratings
Thermal Characteristics
7
Symbol
VDD
V
I
T
T
T
ESD
I
IN
LU
Symbol
VDD
VDD
VDD
T
Symbol
θ
JCT
RE
STOR
IN
JA
A
HBM
drop
Min.
-0.5
-0.5
-50
3
± 100
Min.
2.7V
3.0V
-40
Min.
Max.
3.9
3.9
10
125
260
150
Max.
3.6
100
3.6
85
Max.
25
DATASHEET
www.semtech.com
SX8639
Unit
V
V
mA
°C
°C
°C
kV
mA
Unit
V
mV
V
°C
Unit
°C/W