DataSheet.es    


PDF CAT3604V Data sheet ( Hoja de datos )

Número de pieza CAT3604V
Descripción 4-Channel LED Driver
Fabricantes ON Semiconductor 
Logotipo ON Semiconductor Logotipo



Hay una vista previa y un enlace de descarga de CAT3604V (archivo pdf) en la parte inferior de esta página.


Total 13 Páginas

No Preview Available ! CAT3604V Hoja de datos, Descripción, Manual

CAT3604V
4-Channel LED Driver with
Open/Short LED Detection
Description
The CAT3604V is a high efficiency fractional charge pump that can
drive up to four LEDs with input supply voltages as low as 2.5 V.
An external RSET resistor is used to control the LED channel
brightness while channel diagnostics include automatic detection for
both short and open LED channel conditions, ensuring the CAT3604V
maintains the highest efficiency level in all operating modes.
Each operating mode uses a constant high frequency switching
scheme which allows the use of small form factor external ceramic
capacitors while delivering excellent low noise input supply ripple up
to 5.5 V.
The EN input control supports direct PWM dimming and can
accommodate dimming frequencies in excess of 10 kHz thereby
providing extremely high resolution brightness levels.
The device is available in the 16pad low profile 0.8 mm thin QFN
(4 mm x 4 mm).
Features
Charge Pump: 1x, 1.33x, 1.5x, 2x
Drives up to 4 LEDs at 30 mA Each
Pin Compatible with Industry Standard ’604
Open/Short LED Automatic Detection
Power Efficiency up to 92%
High Resolution PWM Dimming
Low Noise Supply Ripple in All Modes
Soft Start and Current Limiting
Short Circuit and Thermal Overload Protection
16Pad TQFN Package, 4 mm x 4 mm
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
LCD Display Backlight
Cellular Phones
Digital Still Cameras
Handheld Devices
© Semiconductor Components Industries, LLC, 2014
August, 2014 Rev. 4
1
http://onsemi.com
TQFN16
HV4 SUFFIX
CASE 510AE
PIN CONNECTIONS
1
EN
NC
NC
NC
GND
GND
C2+
C2
C1
(4 x 4 mm) (Top View)
MARKING DIAGRAMS
CDAK
AXXX
YMCC
CDAF
AXXX
YMCC
CDAK = CAT3604VHV4GT2
CDAF = CAT3604VHV4T2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
M = Production Month (19, A, B, C)
CC = Country of Origin (Two Digit)
Note: Two digit code for country of origin:
Thailand = TH
Malaysia = MY
ORDERING INFORMATION
Device
CAT3604VHV4GT2
(Note 1)
CAT3604VHV4T2
Package
TQFN16
(PbFree)
TQFN16
(PbFree)
Shipping
2000 /
Tape & Reel
†For information on tape and reel specifications, in-
cluding part orientation and tape sizes, please refer
to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1. NiPdAu Plated Finish (RoHScompliant).
For other finishes, please contact factory.
Publication Order Number:
CAT3604V/D

1 page




CAT3604V pdf
CAT3604V
TYPICAL PERFORMANCE CHARACTERISTICS
(VIN = 3.6 V, IOUT = 80 mA (4 LEDs at 20 mA), CIN = COUT = C1 = C2 = 1 mF, TAMB = 25°C unless otherwise specified.)
100
VF = 3.3 V
90
80 1x
70
1.33x
1.5x
2x
100
VF = 3.3 V
90
1x
80
70
1.33x
60 60
50
40
4.5
4.0 3.5 3.0 2.5
INPUT VOLTAGE (V)
Figure 3. Efficiency vs. Input Voltage
2.0
50
40
4.2
4.0 3.8 3.6 3.4 3.2
INPUT VOLTAGE (V)
Figure 4. Efficiency vs. LiIon Voltage
3.0
4
VF = 3.3 V
3
2
1
LEDs Off
0
5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0
INPUT VOLTAGE (V)
Figure 5. Quiescent Current vs. Input Voltage
4
3
2x
1.5x
2 1.33x
1x
1
0
40 0
40 80 120
TEMPERATURE (°C)
Figure 6. Quiescent Current vs. Temperature
10
8 VF = 3.3 V
6
4
2
0
2
4
6
8
10
2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
Figure 7. LED Current Change vs. Input
Voltage
5.5
10
8
6
4
2
0
2
4
6
8
10
40
VF = 3.3 V
0 40 80
TEMPERATURE (°C)
Figure 8. LED Current Change vs.
Temperature
120
http://onsemi.com
5

5 Page





CAT3604V arduino
CAT3604V
device runs diagnostics and goes to 1x mode where the
output is basically equal to the input voltage.
As soon as the output exceeds about 6 V, the driver resets
itself and reevaluate the mode.
If the die temperature reaches +150°C, the device enters
a thermal protection shutdown mode. When the device
temperature drops to about +130°C, the device resumes
normal operation.
LED Selection
LEDs with forward voltages (VF) ranging from 1.3 V to
4.3 V may be used. Selecting LEDs with lower VF is
recommended in order to extend battery life and keep the
driver in 1x mode longer as the battery voltage decreases.
For example, if a 3.3 V VF LED is selected instead of a
3.5 V VF LED, the driver will stay in 1x mode for a lower
supply voltage of 0.2 V.
External Components
The driver requires four external 1 mF ceramic capacitors
for decoupling input, output, and for the charge pump. Both
capacitors type X5R and X7R are recommended for the
LED driver application. In all charge pump modes, the input
current ripple is kept very low by design and an input bypass
capacitor of 1 mF is sufficient.
In 1x mode, the device operates in linear mode and does
not introduce switching noise back onto the supply.
Recommended Layout
In charge pump mode, the driver switches internally at a
high frequency. It is recommended to minimize trace length
to all four capacitors. A ground plane should cover the area
under the driver IC as well as the bypass capacitors. Short
connection to ground on capacitors CIN and COUT can be
implemented with the use of multiple via. A copper area
matching the TQFN exposed pad (TAB) must be connected
to the ground plane underneath. The use of multiple via
improves the package heat dissipation.
PWM Dimming
The EN pin is used to provide total Shutdown of the device
as well as High Resolution PWM dimming control on the
LED Channels.
Shutdown of the device occurs after the EN pin has been
held low for 1.5 ms. During the “softstart” powerup
sequence from the shutdown mode, the LED current
typically settles within 40 ms (for 1X mode operation). This
LED current settling time becomes 400 ms if 1.33X
operation is needed (i.e low battery voltage).
For High Resolution PWM dimming control (typically
frequencies at 2 kHz or above), the device will remain
powered and only the LED channels output will be switched
on and off during the PWM (the rest of the device will
remain poweredup). This allows the output channels to
have “instanton” response, where the LED current settles
within 1 ms of the applied PWM dimming signals. This
“instanton” modes makes the device suitable for extremely
high frequency PWM dimming schemes.
Figure 28 shows the output current for PWM frequencies
up to 100 kHz and with duty cycles of 30% and 70%.
100
90
70% DC
80
70
60
50
40
30
20 30% DC
10 0.1
1
10 100
PWM FREQUENCY (kHz)
Figure 28. Output Current vs. PWM Frequency
For best performance, the duty cycle offtime TOFF
should meet the following timing limits:
for slow frequency 600 Hz, TOFF 800 ms
for fast frequency 1 kHz, TOFF 400 ms
Figure 27. PCB Layout
http://onsemi.com
11

11 Page







PáginasTotal 13 Páginas
PDF Descargar[ Datasheet CAT3604V.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
CAT36044-Channel Regulated Charge Pump White LED DriverON Semiconductor
ON Semiconductor
CAT36044-Channel Regulated Charge Pump White LED DriverCatalyst Semiconductor
Catalyst Semiconductor
CAT3604A4-Channel Regulated Charge Pump White LED DriverON Semiconductor
ON Semiconductor
CAT3604V4-Channel LED DriverON Semiconductor
ON 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