Datasheet

UCD9248
SLVSA33A –JANUARY 2010–REVISED AUGUST 2012 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
(1)
OPERATING TEMPERATURE ORDERABLE PART PIN COUNT SUPPLY PACKAGE TOP SIDE
RANGE, T
A
NUMBER MARKING
UCD9248PFCR 80-pin Reel of 1000 QFP UCD9248
–40°C to 125°C
UCD9248PFC 80-pin Tray of 119 QFP UCD9248
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
(1)
VALUE UNIT
Voltage applied at V
33D
to DGND –0.3 to 3.8 V
Voltage applied at V
33A
to AGND –0.3 to 3.8 V
Voltage applied to any pin
(2)
–0.3 to 3.8 V
Storage temperature (T
STG
) –40 to 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages referenced to GND.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
V Supply voltage during operation, V
33D
, V
33DIO
, V
33A
3 3.3 3.6 V
T
A
Operating free-air temperature range
(1)
–40 125 °C
T
J
Junction temperature
(1)
125 °C
(1) When operating, the UCD9248’s typical power consumption causes a 15°C temperature rise from ambient.
ELECTRICAL CHARACTERISTICS
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
I
V33A
V
33A
= 3.3 V 8 15
I
V33DIO
V
33DIO
= 3.3 V 2 10
Supply current mA
I
V33D
V
33D
= 3.3 V 40 45
V
33D
= 3.3 V storing configuration parameters
I
V33D
50 55
in flash memory
INTERNAL REGULATOR CONTROLLER INPUTS/OUTPUTS
V
33
3.3-V linear regulator Emitter of NPN transistor 3.25 3.3 3.6
V
V
33FB
3.3-V linear regulator feedback 4 4.6
I
V33FB
Series pass base drive V
VIN
= 12 V 10 mA
Beta Series NPN pass device 40
EXTERNALLY SUPPLIED 3.3 V POWER
V
33D
Digital 3.3-V power T
A
= 25° C 3.0 3.6 V
V
33A
Analog 3.3-V power T
A
= 25°C 3.0 3.6 V
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