DataSheet.es    


PDF CAT4139 Data sheet ( Hoja de datos )

Número de pieza CAT4139
Descripción 22V High Current Boost White LED Driver
Fabricantes Catalyst Semiconductor 
Logotipo Catalyst Semiconductor Logotipo



Hay una vista previa y un enlace de descarga de CAT4139 (archivo pdf) en la parte inferior de esta página.


Total 13 Páginas

No Preview Available ! CAT4139 Hoja de datos, Descripción, Manual

www.DataSheet4U.com
22V High Current Boost White LED Driver
CAT4139
FEATURES
„ Switch Current Limit 750mA
„ Drives LED strings up to 22V
„ Up to 87% Efficiency
„ Low Quiescent Ground Current 0.6mA
„ 1MHz Fixed Frequency Low noise Operation
„ Soft start “in-rush” current limiting
„ Shutdown current less than 1μA
„ Open LED Overvoltage Protection
„ Automatic Shutdown at 1.9V (UVLO)
„ Thermal overload protection
„ TSOT-23 5-Lead (1mm max height)
APPLICATIONS
„ GPS Navigation Systems
„ Portable Media Players
„ Handheld Devices
ORDERING INFORMATION
Part Number
Package
Quantity Package
per Reel Marking
CAT4139TD-GT3 TSOT23-5* 3000
TP
* NiPdAu Plated Finish, RoHS compliant
For Ordering Information details, see page 12.
PIN CONFIGURATION
TSOT-23 5-Lead
SW 1
GND 2
FB 3
5 VIN
4 SHDN
Top View
DESCRIPTION
The CAT4139 is a DC/DC step-up converter that
delivers an accurate constant current ideal for driving
LEDs. Operation at a fixed switching frequency of
1MHz allows the device to be used with small value
external ceramic capacitors and inductor. LEDs
connected in series are driven with a regulated
current set by the external resistor R1. The CAT4139
is ideal for driving parallel strings of up to five white
LEDs in series or up to 22V.
LED dimming can be done by using a DC voltage, a
logic signal, or a pulse width modulation (PWM)
signal. The shutdown input pin allows the device to be
placed in power-down mode with “zero” quiescent
current.
In addition to thermal protection and overload current
limiting, the device also enters a very low power
operating mode during “Open LED” fault conditions.
The device is housed in a low profile (1mm max
height) 5-lead TSOT-23 package for space critical
applications.
TYPICAL APPLICATION CIRCUIT
VIN
L
D
9 strings at
VOUT
20mA
5V
C1
22µH
C2
4.7µF
OFF ON
SW 1µF
VIN 35V
CAT4139
R2
SHDN
GND
FB
(300mV)
1k
IOUT
180mA
R1
1.62
L: Sumida CDRH6D28-220
D: Central CMSH1-40 (rated 40V)
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-5032 Rev. A

1 page




CAT4139 pdf
www.DataSheet4U.com
CAT4139
TYPICAL CHARACTERISTICS
VIN = 5.0V, IOUT = 180mA, TAMB = 25ºC, with typical application circuit unless otherwise specified.
Maximum Output Current
Shutdown Voltage
300
250
VOUT = 9V
200
150
100
VOUT = 14V
50
0
3.0
3.5 4.0 4.5 5.0
INPUT VOLTAGE [V]
5.5
1.0
-25°C
0.8
-40°C
0.6
0.4
85°C
125°C
0.2
3.0
3.5 4.0 4.5
INPUT VOLTAGE [V]
5.0
Switch Current Limit
900
VOUT = 9V
850
800
VOUT = 12V
750
700
650
600
4.5
4.7 4.9 5.1 5.3
INPUT VOLTAGE [V]
5.5
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-5032 Rev. A

5 Page





CAT4139 arduino
www.DataSheet4U.com
PACKAGE OUTLINES DRAWING
TSOT-23 5-Lead (TD) (1)(2)
CAT4139
D
e
E1 E
TOP VIEW
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
L1
L2
θ
MIN
0.01
0.80
0.30
0.12
0.30
NOM
0.05
0.87
0.15
2.90 BSC
2.80 BSC
1.60 BSC
0.95 TYP
0.40
0.60 REF
0.25 BSC
MAX
1.00
0.10
0.90
0.45
0.20
0.50
A2 A
b
SIDE VIEW
A1
θ
L
L1
END VIEW
c L2
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC standard MO-193.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc. No. MD-5032 Rev. A

11 Page







PáginasTotal 13 Páginas
PDF Descargar[ Datasheet CAT4139.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
CAT4134500mA Dual Channel Movie/Flash LED DriverCatalyst Semiconductor
Catalyst Semiconductor
CAT4137CMOS Boost Converter - White LED DriverCatalyst Semiconductor
Catalyst Semiconductor
CAT4137CMOS Boost Converter - White LED DriverON Semiconductor
ON Semiconductor
CAT413922V High Current Boost White LED DriverCatalyst Semiconductor
Catalyst Semiconductor

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar