900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Catalyst Semiconductor

CAT3616 Datasheet Preview

CAT3616 Datasheet

6-Channel Charge Pump LED Driver

No Preview Available !

6-Channel Charge Pump LED Driver
with EZDimTM
CAT3616
FEATURES
DESCRIPTION
„ 6 LED channels with tight matching
„ Independent Main and Sub channels
„ 1-wire EZDimTM Programmable LED Current
„ Accurate 1mA Dimming Level
„ Power efficiency up to 91%
The CAT3616 is a high efficiency 1x/1.5x fractional
charge pump with programmable dimming current in
six LED channels. To ensure uniform brightness in
LCD backlight applications, each LED channel
delivers an accurate regulated current.
„ Fractional pump 1x/1.5x
„ Low noise input ripple
„ Fixed High Frequency Operation 1MHz
Low noise and input ripple is achieved by operating at
a constant switching frequency of 1MHz which allows
the use of small external ceramic capacitors. The
„ “Zero” Current Shutdown Mode
1x/1.5x fractional charge pump supports a wide range
„ Soft start and current limiting
of input voltages from 3V to 5.5V with efficiency up to
„ Short circuit protection
91%, and is ideal for Li-Ion battery powered devices.
„ Thermal shutdown protection
„ RoHS-compliant 16-lead Thin QFN 4mm x 4mm
package
Two groups of LEDs, main (MAIN1 to MAIN4) and sub
(SUB1 and SUB2) are programmable through the
E¯N¯M¯ (active low) and E¯N¯¯S inputs. Independent
APPLICATION
current from 1mA to 31mA with a 1mA step are set by
„ Main and sub-display backlight
„ Color LCD and keypad Backlighting
„ Cellular Phones
toggling the E¯N¯M¯ and E¯N¯¯S inputs. The enable EN
input pin allows to shutdown the device with zero
quiescentwww.DataSheet4U.com current.
„ Handheld Devices
„ Digital Cameras
The device is available in a 16-lead thin QFN package
with a max height of 0.8mm.
ORDERING INFORMATION
Part
Number
Package
CAT3616HV4 Thin QFN-16
Green*
*Lead Finish Matte-Tin
Quantity
per Reel
2000
Package
Marking
G616
For Ordering Information details, see page 13.
PIN CONFIGURATION
TQFN 16-lead 4x4mm (Top view)
TYPICAL APPLICATION CIRCUIT
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Note: Unused LED channels must be connected to VOUT.
1 Doc. No. 5018 Rev. A




Catalyst Semiconductor

CAT3616 Datasheet Preview

CAT3616 Datasheet

6-Channel Charge Pump LED Driver

No Preview Available !

CAT3616
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LEDxx voltage
VOUT, C1±, C2± voltage
EN, E¯N¯M¯ , E¯N¯¯S voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Rating
6
7
VIN + 0.7V
-65 to +160
-40 to +125
300
Unit
V
V
V
ºC
ºC
ºC
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
ILED per LED pin
IOUT Total Output Current
Range
3 to 5.5
-40 to +85
0 to 31
0 to 150
Unit
V
ºC
mA
mA
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
VIN = 3.6V, EN = High, ambient temperature of 25ºC (over recommended operating conditions unless specified
otherwise)
Symbol Parameter
Conditions
Min Typ Max Unit
IQ Quiescent Current
1x mode, all LEDs Off
0.5 mA
1x mode, all LEDs On
2.2 mA
1.5x mode, all LEDs Off 3.5 mA
IQSHDN Shutdown Current
VEN = 0V
0 1 µA
ILED LED Current Range with 6 LEDs
0 31 mA
ILED-ACC
ILED-DEV
ROUT
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
1mA ILED 31mA
(ILED - ILEDAVG) / ILEDAVG
1x mode, IOUT = 120mA
1.5x mode, IOUT = 120mA
±3
±3
0.5
2.2
%
%
FOSC Charge Pump Frequency
0.8 1 1.3 MHz
ISC_MAX Output short circuit Current Limit VOUT < 0.5V
60 mA
IIN_MAX Input Current Limit
1x mode, VOUT > 1V
300 mA
IEN/DIM
VHI
VLO
EN/DIM Pin
Input Leakage
Logic High Level
Logic Low Level
-1 1 µA
1.3 V
0.4 V
TSD Thermal Shutdown
165 ºC
THYS Thermal Hysteresis
20 ºC
VUVLO Undervoltage lock out (UVLO)
threshold
2V
Doc. No. 5018 Rev. A
2 © 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice


Part Number CAT3616
Description 6-Channel Charge Pump LED Driver
Maker Catalyst Semiconductor
PDF Download

CAT3616 Datasheet PDF






Similar Datasheet

1 CAT3612 Programmable 300 mA Camera Flash LED Driver
ON Semiconductor
2 CAT3612 Programmable 300mA Camera Flash LED Driver
Catalyst Semiconductor
3 CAT3614 4-Channel 1-Wire LED
Catalyst Semiconductor
4 CAT3614 4-Channel 1-Wire LED Driver
ON Semiconductor
5 CAT3616 6-Channel Charge Pump LED Driver
ON Semiconductor
6 CAT3616 6-Channel Charge Pump LED Driver
Catalyst Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy