CAT3661HV3-GT2 ON Semiconductor, CAT3661HV3-GT2 Datasheet

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CAT3661HV3-GT2

Manufacturer Part Number
CAT3661HV3-GT2
Description
IC INTERFACE
Manufacturer
ON Semiconductor
Series
QUAD-Mode®r
Type
Backlight, White LEDr
Datasheet

Specifications of CAT3661HV3-GT2

Constant Current
*
Constant Voltage
*
Topology
*
Number Of Outputs
*
Internal Driver
*
Type - Primary
*
Type - Secondary
*
Frequency
*
Voltage - Supply
*
Voltage - Output
*
Mounting Type
Surface Mount
Package / Case
16-WFDFN, Exposed Pad
Operating Temperature
*
Current - Output / Channel
*
Internal Switch(s)
Yes
Efficiency
92%
Led Driver Application
Backlighting
No. Of Outputs
1
Output Current
5mA
Output Voltage
7V
Input Voltage
2V To 5.5V
Operating Temperature Range
-40°C To +85°C
Driver Case Style
TQFN
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
CAT3661HV3-GT2OSTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT3661HV3-GT2
Manufacturer:
ON Semiconductor
Quantity:
1 600
CAT3661
1-Channel Low-Power
Quad-Mode
Description
charge pump that drives one LED with up to 5 mA of current.
Soft−start current limiting and short−circuit protection are optimized
for use with coin cell batteries.
use of small external ceramic capacitors. This makes the CAT3661
ideal for EMI sensitive applications. The quad−mode charge pump
supports a wide range of input voltages from 2.0 V to 5.5 V.
microcontroller of Open/Short LED and Low battery events. The Low
battery indicator trip point is internally fixed at 2.4 V. External
resistors can be added to raise or lower the trip voltage, if needed.
package with a max height of 0.8 mm.
device efficiency by up to 10% over traditional 1.5x tri−mode charge
pumps with no added external capacitors. The 1.33x charge pump with
two fly capacitors is a patented architecture exclusive to
ON Semiconductor.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2010
November, 2010 − Rev. 1
The CAT3661 is a high efficiency low power quad−mode fractional
Low noise input ripple and constant switching frequency allows the
The CAT3661 has a built−in circuitry to provide feedback to a
The device is packaged in the tiny 16−lead TQFN 3 mm x 3 mm
The inclusion of a 1.33x fractional charge pump mode increases
Compliant
Quad−Mode Charge Pump: 1x, 1.33x, 1.5x, 2x
Drives One LED up to 5 mA
Optimized for Coin Cell Battery Operation
Open/Short LED Fault Detection
Adjustable Low Battery Detection
Low Quiescent Current 150 mA Typical
Power Efficiency up to 92%
Low Noise Input Ripple in All Modes
“Zero” Current Shutdown Mode
Soft Start and Short Circuit Current Limiting
Thermal Shutdown Protection
3 mm x 3 mm, 16−pad TQFN Package
This Device is Pb−Free, Halogen Free/BFR Free and is RoHS
Low Power LCD Display Backlight
Low Power Handheld Device Backlight
)
LED Driver
1
See detailed description of the pins function on
page 8 of this data sheet.
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
JAAU = CAT3661HV3−GT2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
WW = Production Week (Two Digits)
nFLTB
nFLTL
RSET
EN
ORDERING INFORMATION
MARKING DIAGRAM
PIN CONNECTIONS
1
http://onsemi.com
CASE 510AD
HV3 SUFFIX
(Top View)
TQFN−16
AXXX
JAAU
YWW
Publication Order Number:
C1−
C1+
C2+
C2−
CAT3661/D

Related parts for CAT3661HV3-GT2

CAT3661HV3-GT2 Summary of contents

Page 1

... See detailed description of the pins function on page 8 of this data sheet. MARKING DIAGRAM JAAU AXXX YWW JAAU = CAT3661HV3−GT2 A = Assembly Location XXX = Last Three Digits of Assembly Lot Number Y = Production Year (Last Digit Production Week (Two Digits) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet ...

Page 2

... Low Battery Fault LED Fault Table 1. ORDERING INFORMATION Orderable Part Number CAT3661HV3−GT2 1. 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. Table 2. ABSOLUTE MAXIMUM RATINGS VIN voltage ...

Page 3

Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Recommended operating conditions unless otherwise specified. C Parameter Quiescent Current Shutdown Current LED Current Accuracy (Chip to Chip) LED Current Accuracy Gain ( LED RSET RSET Regulated Voltage Output Resistance (open loop) ...

Page 4

mA, V LED F 220 200 1.33x 180 1x 160 140 120 3.4 3.2 3.0 2.8 2.6 INPUT VOLTAGE (V) Figure 2. Quiescent Current vs. Input Voltage ...

Page 5

mA, V LED 225 2x 200 1.5x 175 1.33x 150 1x 125 − TEMPERATURE (°C) Figure 7. Quiescent Current vs. Temperature 2.0 1.6 1.2 0.8 0.4 0 −0.4 −0.8 −1.2 −1.6 ...

Page 6

TYPICAL CHARACTERISTICS (VIN = mA LED F Figure 13. Power Mode Figure 15. Power Up in 1.5x Mode Figure 17. Operating Waveforms in 1x Mode = 25°C, ...

Page 7

TYPICAL CHARACTERISTICS (VIN = mA LED F Figure 19. Operating Waveforms in 1.5x Mode Figure 21. Open LED Figure 23. Enable with Low Battery = 25°C, typical application circuit unless ...

Page 8

Table 5. PIN DESCRIPTION Pin No. Pin Name 1 RSET Connect resistor RSET to set the LED current 2 nFLTB Battery Fault output, Open drain output. (Active low) 3 nFLTL LED Fault output, Open drain output. (Active low ...

Page 9

Block Diagram Figure 24. CAT3661 Functional Block Diagram Basic Operation At power−up, the CAT3661 starts operating in 1x mode where the output will be approximately equal to the input supply voltage (less any internal voltage losses). If the output voltage ...

Page 10

Extra external resistors can be added to the top or bottom of the internal resistor divider network to alter the divider ratio gain factor. The low battery indicator trip point can be calculated by the following formula ...

Page 11

Protection Mode Open LED Protection An LED is deemed open circuit if the LED current sink is unable to regulate the LED channel to the programmed current for greater than 2 ms. The driver will sense this condition and the ...

Page 12

D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.20 REF b 0.18 0.25 D 2.90 3.00 D2 1.40 −−− E 2.90 3.00 E2 1.40 −−− e 0.50 BSC L 0.30 0.40 Notes: ...

Page 13

... All packages are RoHS−compliant (Lead−free, Halogen−free). 4. The standard lead finish is NiPdAu. 5. The device used in the above example is a CAT3661HV3−GT2 (TQFN, NiPdAu, Tape & Reel, 2,000/Reel). 6. 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. Quad− ...

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