DatasheetsPDF.com

LED Driver. CAT3616 Datasheet

DatasheetsPDF.com

LED Driver. CAT3616 Datasheet
















CAT3616 Driver. Datasheet pdf. Equivalent













Part

CAT3616

Description

6-Channel Charge Pump LED Driver



Feature


CAT3616 6-Channel Charge Pump LED Drive r with EZDimt Description The CAT3616 i s a high efficiency 1x/1.5x fractional charge pump with programmable dimming c urrent in six LED channels. To ensure u niform brightness in LCD backlight appl ications, each LED channel delivers an accurate regulated current. Low noise a nd input ripple is achieved by operatin g at a constant sw.
Manufacture

ON Semiconductor

Datasheet
Download CAT3616 Datasheet


ON Semiconductor CAT3616

CAT3616; itching frequency of 1 MHz which allows the use of small external ceramic capac itors. The 1x/1.5x fractional charge pu mp supports a wide range of input volta ges from 3 V to 5.5 V with efficiency u p to 91%, and is ideal for Li−Ion bat tery powered devices. Two groups of LED s, main (MAIN1 to MAIN4) and sub (SUB1 and SUB2) are programmable through the ENM (active low) and.


ON Semiconductor CAT3616

ENS inputs. Independent current from 1 mA to 31 mA with a 1 mA step are set by toggling the ENM and ENS inputs. The e nable EN input pin allows to shutdown t he device with zero quiescent current. The device is available in a 16−pad T QFN package with a max height of 0.8 mm . Features • 6 LED Channels with Tigh t Matching • Independent Main and Sub Channels • 1−wire EZDim.


ON Semiconductor CAT3616

t Programmable LED Current • Accurate 1 mA Dimming Level • Power Efficiency up to 91% • Fractional Pump 1x/1.5x • Low Noise Input Ripple • Fixed Hi gh Frequency Operation 1 MHz • “Zer o” Current Shutdown Mode • Soft Sta rt and Current Limiting • Short Circu it Protection • Thermal Shutdown Prot ection • 16−pad TQFN 4 mm x 4 mm Pa ckage • These Devices are Pb−Free, Halogen F.





Part

CAT3616

Description

6-Channel Charge Pump LED Driver



Feature


CAT3616 6-Channel Charge Pump LED Drive r with EZDimt Description The CAT3616 i s a high efficiency 1x/1.5x fractional charge pump with programmable dimming c urrent in six LED channels. To ensure u niform brightness in LCD backlight appl ications, each LED channel delivers an accurate regulated current. Low noise a nd input ripple is achieved by operatin g at a constant sw.
Manufacture

ON Semiconductor

Datasheet
Download CAT3616 Datasheet




 CAT3616
CAT3616
6-Channel Charge Pump
LED Driver with EZDimt
Description
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.
Low noise and input ripple is achieved by operating at a constant
switching frequency of 1 MHz which allows the use of small external
ceramic capacitors. The 1x/1.5x fractional charge pump supports a
wide range of input voltages from 3 V to 5.5 V with efficiency up to
91%, and is ideal for LiIon battery powered devices.
Two groups of LEDs, main (MAIN1 to MAIN4) and sub (SUB1 and
SUB2) are programmable through the ENM (active low) and ENS
inputs. Independent current from 1 mA to 31 mA with a 1 mA step are
set by toggling the ENM and ENS inputs. The enable EN input pin
allows to shutdown the device with zero quiescent current.
The device is available in a 16pad TQFN package with a max
height of 0.8 mm.
Features
6 LED Channels with Tight Matching
Independent Main and Sub Channels
1wire EZDimt Programmable LED Current
Accurate 1 mA Dimming Level
Power Efficiency up to 91%
Fractional Pump 1x/1.5x
Low Noise Input Ripple
Fixed High Frequency Operation 1 MHz
“Zero” Current Shutdown Mode
Soft Start and Current Limiting
Short Circuit Protection
Thermal Shutdown Protection
16pad TQFN 4 mm x 4 mm Package
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Main and Subdisplay Backlight
Color LCD and Keypad Backlighting
Cellular Phones
Handheld Devices
Digital Cameras
© Semiconductor Components Industries, LLC, 2010
1
April, 2010 Rev. 3
http://onsemi.com
1
TQFN16
HV4 SUFFIX
CASE 510AE
PIN CONNECTIONS
1
MAIN1
ENM
ENS
EN
TAB
is
GND
SUB2
GND
C2+
C2
(Top View)
MARKING DIAGRAMS
G616
AXXX
YMCC
CDAH
AXXX
YMCC
G616 = CAT3616HV4T2
CDAH = CAT3616HV4GT2
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
CAT3616HV4T2
(Note 1)
Package
TQFN16
(PbFree)
Shipping
2,000/
Tape & Reel
CAT3616HV4GT2 TQFN16
(Note 2)
(PbFree)
2,000/
Tape & Reel
1. MatteTin Plated Finish (RoHScompliant).
2. NiPdAu Plated Finish (RoHScompliant).
Publication Order Number:
CAT3616/D




 CAT3616
CAT3616
NOTE: Unused LED channels must be connected to VOUT.
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VIN, LEDxx voltage
6
V
VOUT, C1±, C2± voltage
7
V
EN, ENM, ENS voltage
VIN + 0.7 V
V
Storage Temperature Range
65 to +160
°C
Junction Temperature Range
40 to +150
°C
Lead Temperature
300
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
ILED per LED pin
IOUT Total Output Current
Range
Unit
3 to 5.5
V
40 to +85
°C
0 to 31
mA
0 to 150
mA
NOTE: Typical application circuit with external components is shown above.
http://onsemi.com
2




 CAT3616
CAT3616
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
VIN = 3.6 V, EN = High, ambient temperature of 25°C (over recommended operating conditions unless specified otherwise)
Symbol
Parameter
Conditions
Min
Typ
Max
IQ
Quiescent Current
1x mode, all LEDs Off
0.5
1x mode, all LEDs On
2.2
1.5x mode, all LEDs Off
3.5
IQSHDN
ILED
ILEDACC
ILEDDEV
ROUT
Shutdown Current
LED Current Range with 6 LEDs
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
FOSC
ISC_MAX
IIN_MAX
IEN/DIM
VHI
VLO
Charge Pump Frequency
Output short circuit Current Limit
Input Current Limit
EN/DIM Pin
Input Leakage
Logic High Level
Logic Low Level
VEN = 0 V
1 mA ILED 31 mA
(ILED ILEDAVG) / ILEDAVG
1x mode, IOUT = 120 mA
1.5x mode, IOUT = 120 mA
VOUT < 0.5 V
1x mode, VOUT > 1 V
0
1
0
31
±3
±3
0.5
2.2
0.8
1
1.3
60
300
1
1
1.3
0.4
TSD
Thermal Shutdown
165
THYS
Thermal Hysteresis
20
VUVLO
Undervoltage lock out (UVLO) threshold
2
Table 4. RECOMMENDED EN, ENM AND ENS TIMING
(For 3 V VIN 5.5 V, over full ambient temperature range 40 to +125°C.)
Symbol
Parameter
Conditions
TSETP
TLO
THI
TOFF
TD
TDEC
EN setup from shutdown
ENM, ENS program low time
ENM, ENS program high time
EN low time to shutdown
LED current enable
LED current decrement
Min
Typ
Max
10
0.3
200
0.3
1.5
40
0.1
Unit
mA
mA
mA
%
%
W
MHz
mA
mA
mA
V
V
°C
°C
V
Unit
ms
ms
ms
ms
ms
ms
http://onsemi.com
3




Recommended third-party CAT3616 Datasheet







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)