CAT3604V Datasheet, PDF (1/14 Pages) Catalyst Semiconductor – 4-Channel Quad-Mode™ LED Driver with Open/Short LED Detection

CAT3604V
4-Channel Quad-Mode⁾ LED
Driver with Open/Short LED
Detection
Description
The CAT3604V is a high efficiency Quad−Mode^® 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 volts.
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 16−pad low profile 0.8 mm thin QFN
(4 mm x 4 mm).
Features
• Quad−mode 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
• 16−Pad TQFN Package, 4 mm x 4 mm
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• LCD Display Backlight
• Cellular Phones
• Digital Still Cameras
• Handheld Devices
© Semiconductor Components Industries, LLC, 2010
1
April, 2010 − Rev. 3
http://onsemi.com
TQFN−16
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 = CAT3604VHV4−GT2
CDAF = CAT3604VHV4−T2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
M = Production Month (1−9, A, B, C)
CC = Country of Origin (Two Digit)
Note: Two digit code for country of origin:
Thailand = TH
Malaysia = MY
ORDERING INFORMATION
Device
Package
CAT3604VHV4−GT2 TQFN−16
(Note 1)
(Pb−Free)
CAT3604VHV4−T2
TQFN−16
(Pb−Free)
Shipping
2,000/
Tape & Reel
1. NiPdAu Plated Finish (RoHS−compliant).
For other finishes, please contact factory.
Publication Order Number:
CAT3604V/D