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CAT3636 Datasheet

LED Driver

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CAT3636
LED Driver, 6-Channel
Description
The CAT3636 is a high efficiency fractional charge pump that can
drive up to six LEDs programmable by a one wire digital interface.
The inclusion of a 1.33x fractional charge pump mode increases
device efficiency by up to 10% over traditional 1.5x charge pumps
with no added external capacitors.
Low noise input ripple is achieved by operating at a constant
switching frequency which allows the use of small external ceramic
capacitors. The multifractional charge pump supports a wide range of
input voltages from 2.5 V to 5.5 V.
The EN/SET logic input functions as a chip enable and a “1wire”
addressable interface for control and current setting of all LEDs. Three
groups of two LEDs can be configured with independent LED currents
between 0.25 mA and 32 mA.
The device is available in a tiny 16lead TQFN 3 mm x 3 mm
package with a max height of 0.8 mm.
ON Semiconductor’s 1.33x charge pump switching architecture is
patented.
Features
High Efficiency 1.33x Charge Pump
Charge Pump: 1x, 1.33x, 1.5x, 2x
Drives up to 6 LEDs at 32 mA Each
1Wire EZDim LED Current Programming
Power Efficiency up to 92%
Low Noise Input Ripple in All Modes
“Zero” Current Shutdown Mode
Soft Start and Current Limiting
Short Circuit Protection
Thermal Shutdown Protection
Tiny 3 mm x 3 mm, 16lead TQFN Package
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
LCD Display Backlight
Color RGB LEDs
Cellular Phones
Digital Still Cameras
Handheld Devices
http://onsemi.com
TQFN16
HV3 SUFFIX
CASE 510AD
PIN CONNECTIONS
1
LEDC2
C2
LEDC1
C2+
LEDB2
C1
LEDB1
C1+
(Top View)
MARKING DIAGRAMS
JAAA
AXXX
YWW
JAAR
AXXX
YWW
JAAA = CAT3636HV3T2
JAAR = CAT3636HV3GT2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
WW = Production Week (Two Digits)
ORDERING INFORMATION
Device
Package
Shipping
CAT3636HV3T2
(Note 1)
CAT3636HV3GT2
(Note 2)
TQFN16
(PbFree)
TQFN16
(PbFree)
2000/
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1. MatteTin Plated Finish (RoHScompliant).
2. NiPdAu Plated Finish (RoHScompliant).
© Semiconductor Components Industries, LLC, 2014
1
August, 2014 Rev. 8
Publication Order Number:
CAT3636/D


  ON Semiconductor Electronic Components Datasheet  

CAT3636 Datasheet

LED Driver

No Preview Available !

VIN
2.5 V to CIN
5.5 V
1 mF
One wire
programming
CAT3636
1 mF
1 mF
C1C1+ C2C2+
VIN
VOUT
CAT3636
LEDA1
LEDA2
LEDB1
EN/SET
LEDB2
LEDC1
LEDC2
GND
pair A
pair B
pair C
COUT
1 mF
20 mA
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VIN, LEDx, C1±, C2± voltage
6
V
VOUT Voltage
7
V
EN/SET Voltage
VIN + 0.7 V
V
Storage Temperature Range
65 to +160
°C
Junction Temperature Range (Note 3)
40 to +150
°C
Lead Temperature
300
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
Range
Unit
VIN
2.5 to 5.5
V
Ambient Temperature Range (Note 3)
40 to +85
°C
ILED per LED pin
Total Output Current
0 to 32
mA
0 to 192
mA
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
NOTES: Typical application circuit with external components is shown above.
3. Package thermal resistance is below 50°C/W when mounted on FR4 board.
http://onsemi.com
2


Part Number CAT3636
Description LED Driver
Maker ON Semiconductor
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CAT3636 Datasheet PDF






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