CAT3643HV2-GT2 ON Semiconductor, CAT3643HV2-GT2 Datasheet

IC LED DVR 3CH QUAD MODE 12TQFN

CAT3643HV2-GT2

Manufacturer Part Number
CAT3643HV2-GT2
Description
IC LED DVR 3CH QUAD MODE 12TQFN
Manufacturer
ON Semiconductor
Series
QUAD-Mode®r
Type
Backlight, White LEDr
Datasheet

Specifications of CAT3643HV2-GT2

Topology
Linear (LDO), Switched Capacitor (Charge Pump)
Number Of Outputs
3
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
800kHz ~ 1.6MHz
Voltage - Supply
2.5 V ~ 5.5 V
Voltage - Output
7V
Mounting Type
Surface Mount
Package / Case
12-VFDFN Exposed Pad
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
32mA
Internal Switch(s)
Yes
Efficiency
92%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT3643HV2-GT2
Manufacturer:
ON Semiconductor
Quantity:
1 550
CAT3643
3-Channel Ultra High
Efficiency Quad-Mode
Driver
Description
pump that can drive up to three 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.
switching frequency which allows the use of small external ceramic
capacitors. The multi−fractional charge pump supports a wide range of
input voltages from 2.4 V to 5.5 V.
dimming interface for current setting of all LEDs. Six different current
ratios are available via the interface.
x 3 mm package with a max height of 0.8 mm.
architecture is patented.
Features
Applications
© Semiconductor Components Industries, LLC, 2010
May, 2010 − Rev. 6
The CAT3643 is a high efficiency Quad−Mode
Low noise input ripple is achieved by operating at a constant
The EN/DIM logic input functions as a chip enable and a digital
The device is available in the 16−pad TQFN or 12−pad TDFN 3 mm
ON Semiconductor’s Quad−Mode
Compliant
High Efficiency 1.33x Charge Pump
Quad−mode Charge Pump: 1x, 1.33x, 1.5x, 2x
Drives up to 3 LEDs at 32 mA Each
1−wire EZDimt 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
12−pad TDFN and 16−pad TQFN Packages
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
LCD Display Backlight
Cellular Phones
Digital Still Cameras
Handheld Devices
®
1.33x charge pump switching
®
fractional charge
)
LED
1
CAT3643HV2−T2
(Note 1)
CAT3643HV2−GT2
(Note 2)
CAT3643HV3−T2
(Note 1)
CAT3643HV3−GT2
(Note 2)
1. Matte−Tin Plated Finish (RoHS−compliant).
2. NiPdAu Plated Finish (RoHS−compliant).
CAT3643HV2−T2
CAT3643HV3−T2
Device
HABF
JAAE
ORDERING INFORMATION
MARKING DIAGRAMS
http://onsemi.com
CASE 510AD
CASE 511AN
HV2 SUFFIX
HV3 SUFFIX
TQFN−16
TDFN−12
(Pb−Free)
(Pb−Free)
(Pb−Free)
(Pb−Free)
TDFN−12
TDFN−12
TQFN−16
TQFN−16
Package
Publication Order Number:
CAT3643HV2−GT2
CAT3643HV3−GT2
HABG
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
JAAF
Shipping
2,000/
2,000/
2,000/
2,000/
CAT3643/D

Related parts for CAT3643HV2-GT2

CAT3643HV2-GT2 Summary of contents

Page 1

... NiPdAu Plated Finish (RoHS−compliant). 1 http://onsemi.com TDFN−12 HV2 SUFFIX CASE 511AN TQFN−16 HV3 SUFFIX CASE 510AD MARKING DIAGRAMS HABF HABG CAT3643HV2−T2 CAT3643HV2−GT2 JAAE JAAF CAT3643HV3−T2 CAT3643HV3−GT2 ORDERING INFORMATION Device Package Shipping TDFN−12 2,000/ (Pb−Free) Tape & Reel TDFN− ...

Page 2

... RSET EN/DIM VOUT The CAT3643 is offered in three different packages. The 12−pad TDFN with a max height of 0 pin−compatible to the ON Semiconductor CAT3603 LED driver. The 16−pad TQFN with max height of 0 also offered. Table 1. ABSOLUTE MAXIMUM RATINGS V , LEDx, C1±, C2±, EN/DIM, RSET voltage ...

Page 3

Table 3. ELECTRICAL OPERATING CHARACTERISTICS (over recommended operating conditions unless specified otherwise) V Symbol Name I Quiescent Current Q I Shutdown Current QSHDN I LED Current Accuracy LED−ACC I LED Channel Matching LED−DEV V RSET Regulated Voltage RSET R Output ...

Page 4

Table 4. RECOMMENDED EN/DIM TIMING (For 2.4 V ≤ V ≤ 5.5 V, over full ambient temperature range −40°C to +85°C.) IN Symbol Name T EN/DIM setup from shutdown SETUP T EN/DIM program low time LO T EN/DIM program high ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS ( LEDs OUT 100 1.33x 4.5 4.0 3.5 3.0 INPUT VOLTAGE ...

Page 6

TYPICAL PERFORMANCE CHARACTERISTICS ( LEDs OUT 1.3 1.2 1.5x Mode 1.1 1.0 0.9 1.33x, 2x Mode 0.8 0.7 − TEMPERATURE (°C) Figure 10. Switching Frequency ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS ( LEDs OUT Figure 16. Power Up Delay (1x Mode) Figure 18. Operating Waveforms in 1x Mode Figure 20. Switching Waveforms in 1.5x Mode ...

Page 8

TYPICAL PERFORMANCE CHARACTERISTICS ( LEDs OUT 4.0 1x Mode 3.5 3.0 2.5 2.0 1.5 1.0 0 100 200 OUTPUT CURRENT (mA) Figure 22. Foldback Current ...

Page 9

Table 6. PIN DESCRIPTION Name LED1 LED1 cathode terminal. LED2 LED2 cathode terminal. LED3 LED3 cathode terminal. RSET Connect resistor RSET to set the LED current. EN/DIM Device enable (active high) and Dimming Control. VOUT Charge pump output connected to ...

Page 10

Block Diagram V IN EN/DIM 100 kΩ Serial Interface Registers Figure 28. CAT3643 Functional Block Diagram Basic Operation At power−up, the CAT3643 starts operating in 1x mode where the output will be approximately equal to the input supply voltage (less ...

Page 11

LED Current Selection At power−up, the initial LED current is set to full scale (100% brightness) by the external resistor R LED current + 132 The EN/DIM pin has two primary functions. One function enables and disables the device. The ...

Page 12

Unused LED Channels For applications not requiring all the channels recommended the unused LED pins be tied directly to V (see Figure 30 C1+ C1− C2+ C2− OUT C ...

Page 13

D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.178 0.203 b 0.18 0.23 D 2.90 3.00 D2 2.30 2.40 E 2.90 3.00 E2 1.55 1.70 e 0.45 BSC L 0.30 0.40 M ...

Page 14

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 15

... The device used in the above example is a CAT3643HV3−GT2 (TQFN, NiPdAu, Tape & Reel, 2,000/Reel). 6. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 7. 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 ...

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