Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼
Nombre de pieza
         Descripción


LM27965 Datasheet(Hoja de datos) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de Pieza. LM27965
Descripción  Dual Display White LED Driver with I2C Compatible Brightness Control
Descarga  13 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo 

 
 4 page
background image
Electrical Characteristics (Notes 2, 8) (Continued)
Limits in standard typeface are for T
J = 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: V
IN = 3.6V; VRESET =VIN; VIO = 1.8V VDxA =VDxB =VDxC = 0.4V; RSET = 12.7k
Ω; BankA = BankB =
BankC = Fullscale Current; ENA, ENB, ENC, EN5A, EN3B Bits = “1”; C1 = C2 = C
IN=COUT= 1.0µF; Specifications related to
output current(s) and current setting pins (I
Dxx and ISET) apply to BankA and BankB. (Note 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
f
PWM
Internal Diode Current PWM
Frequency
20
kHz
V
RESET
Reset Voltage Thresholds
2.7V
≤ V
IN
≤ 5.5V
Reset
0
0.45
V
Normal
Operation
1.2
V
IN
I
2C Compatible Interface Voltage Specifications (SCL, SDIO, VIO)
V
IO
Serial Bus Voltage Level
2.7V
≤ V
IN
≤ 5.5V (Note 13)
1.4
V
IN
V
V
IL
Input Logic Low "0"
2.7V
≤ V
IN
≤ 5.5V, VIO= 3.0V
0
0.3 x
V
IO
V
V
IH
Input Logic High "1"
2.7V
≤ V
IN
≤ 5.5V, VIO= 3.0V
0.7 x
V
IO
V
IO
V
V
OL
Output Logic Low "0"
I
LOAD = 3mA
400
mV
I
2C Compatible Interface Timing Specifications (SCL, SDIO, VIO)(Note 14)
t
1
SCL (Clock Period)
2.5
µs
t
2
Data In Setup Time to SCL High
100
ns
t
3
Data Out stable After SCL Low
0
ns
t
4
SDIO Low Setup Time to SCL Low
(Start)
100
ns
t
5
SDIO High Hold Time After SCL
High (Stop)
100
ns
20155013
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 TJ = 170˚C (typ.) and disengages at TJ =
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 1.5k
Ω 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 (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX-OP = 100˚C), the maximum power
dissipation of the device in the application (PD-MAX), and the junction-to ambient thermal resistance of the part/package in the application (θJA), as given by the
following equation: TA-MAX =TJ-MAX-OP –(θJA xPD-MAX).
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: CIN,CPOUT,C1, and C2 : Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) used in setting electrical characteristics
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 (IDxA
=IDxB =IDxC = 30mA Max.). Under maximum output current conditions, special attention must be given to input voltage and LED forward voltage to ensure proper
current regulation. See the Maximum Output Current section of the datasheet for more information.
www.national.com
4




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13 


Datasheet Download



Número de Pieza relacionado

Número de PiezaDescripción de ComponentesHtml ViewFabricante
LM27964White LED Driver System with I2C Compatible Brightness Control 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2793Low Noise White LED Constant Current Supply with Dual Function Brightness Control 1 2 3 4 5 MoreNational Semiconductor (TI)
LM3519High Frequency Boost White LED Driver with High-Speed PWM Brightness Control 1 2 3 4 5 MoreNational Semiconductor (TI)
NJU6051White LED Driver with Automatic Dimming Control 1 2 3 4 5 MoreNew Japan Radio
TPS60231WHITE LED CHARGE PUMP CURRENT SOURCE WITH PWM BRIGHTNESS CONTROL 1 2 3 4 5 MoreTexas Instruments
TPS61061CONSTANT CURRENT LED DRIVER WITH DIGITAL AND PWM BRIGHTNESS CONTROL 1 2 3 4 5 MoreTexas Instruments
LM2792Current Regulated Switched Capacitor LED Driver with Analog Brightness Control 1 2 3 4 5 MoreNational Semiconductor (TI)
AME5136Integrated White LED Driver With Organic LED Display Power Supply 1 2 3 4 5 MoreAnalog Microelectronics
TPS60230WHITE LED CHARGE PUMP CURRENT SOURCE WITH PWM BRIGHTNESS CONTROL 1 2 3 4 5 MoreTexas Instruments

Enlace URL

¿ALLDATASHEET es útil para Ud.?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved© Alldatasheet.com 2003 - 2016    


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl