lm27965sqx-m National Semiconductor Corporation, lm27965sqx-m Datasheet - Page 4

• Manufacturer Part Number: lm27965sqx-m
• Description: Dual Display White Led Driver With I2c Compatible Brightness Control
• Manufacturer: National Semiconductor Corporation

www.national.com
V
I
V
V
V
V
I
t
t
t
t
t
2
2
1
2
3
4
5
Symbol
RESET
C Compatible Interface Voltage Specifications (SCL, SDIO, VIO)
IO
IL
IH
OL
C Compatible Interface Timing Specifications (SCL, SDIO, VIO)(Note 14)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation
of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions,
see the Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pins.
Note 3: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at T
= 165°C (typ.).
Note 4: For detailed soldering specifications and information, please refer to National Semiconductor Application Note 1187: Leadless Leadframe Package
(AN-1187).
Note 5: The human body model is a 100pF capacitor discharged through 1.5kΩ resistor into each pin. (MIL-STD-883 3015.7)
Note 6: In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be
derated. Maximum ambient temperature (T
dissipation of the device in the application (P
following equation: T
Note 7: Junction-to-ambient thermal resistance is highly dependent on application and board layout. In applications where high maximum power dissipation
exists, special care must be paid to thermal dissipation issues in board design. For more information, please refer to National Semiconductor Application Note
1187: Leadless Leadframe Package (AN-1187).
Note 8: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 9: C
Note 10: The maximum total output current for the LM27965 should be limited to 180mA. The total output current can be split among any of the three banks
(I
proper current regulation. See the Maximum Output Current section of the datasheet for more information.
Note 11: For the two groups of current sinks on a part (BankA and BankB), the following are determined: the maximum sink current in the group (MAX), the
minimum sink current in the group (MIN), and the average sink current of the group (AVG). For each group, two matching numbers are calculated: (MAX-AVG)/
DxA
= I
DxB
IN
= I
Reset Voltage Thresholds
Serial Bus Voltage Level
Input Logic Low "0"
Input Logic High "1"
Output Logic Low "0"
SCL (Clock Period)
Data In Setup Time to SCL High
Data Out stable After SCL Low
SDIO Low Setup Time to SCL Low
(Start)
SDIO High Hold Time After SCL High
(Stop)
, C
DxC
POUT
= 30mA Max.). Under maximum output current conditions, special attention must be given to input voltage and LED forward voltage to ensure
, C
A-MAX
1
, and C
= T
Parameter
J-MAX-OP
2
: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) used in setting electrical characteristics
– (θ
JA
A-MAX
× P
D-MAX
D-MAX
) is dependent on the maximum operating junction temperature (T
), and the junction-to ambient thermal resistance of the part/package in the application (θ
).
2.7V
2.7V
2.7V
2.7V
I
LOAD
≤
≤
≤
≤
= 3mA
V
V
V
V
IN
IN
IN
IN
≤
≤
≤
≤
5.5V
5.5V (Note 13)
5.5V, VIO= 3.0V
5.5V, VIO= 3.0V
4
Condition
Reset
Normal
Operation
J-MAX-OP
0.7 ×
Min
100
100
100
1.2
1.4
V
2.5
0
0
0
IO
J
= 100°C), the maximum power
= 170°C (typ.) and disengages at T
Typ
20155013
JA
), as given by the
0.3 ×
Max
0.45
400
V
V
V
V
IN
IN
IO
IO
Units
mV
µs
ns
ns
ns
ns
V
V
V
V
J