Phone:
021-64472383
LED Driver
Flash LED Driver
|
Order Number
|
Package Type
|
Temperature Range
|
Marking
|
QTY/Reel
|
|
BCT3140EGG-TR
|
DFN3x3-10L
|
-40°C to +85°C
|
XXXXX
3140 |
3000
|
Note: "XXXXX" in Marking will be appeared as the batch code.
" ["url"] => string(23) "/En/flash-led-driver-55" ["count"] => string(1) "0" ["sort"] => string(3) "100" ["command"] => string(1) "0" ["isdel"] => string(1) "0" ["status"] => string(1) "1" ["uid"] => string(1) "0" ["username"] => string(0) "" ["euid"] => string(1) "4" ["edituser"] => string(6) "system" ["input_time"] => string(10) "1600679737" ["create_time"] => string(0) "" ["update_time"] => string(10) "1721088618" ["static_title"] => string(0) "" ["spec_id"] => string(1) "0" ["about_file"] => string(2) "47" ["in_url"] => string(67) "https://so.szlcsc.com/global.html?k=BCT2019&hot-key=TPS5430DDAR" ["fields"] => array(18) { ["id"] => string(1) "1" ["catid"] => string(3) "107" ["tit"] => string(7) "BCT3140" ["sort"] => string(1) "0" ["product_id"] => string(2) "55" ["input_time"] => string(10) "1601176581" ["create_time"] => string(0) "" ["update_time"] => string(0) "" ["description"] => string(29) "1.0A Output Flash LED Driver" ["vin"] => string(7) "2.7-5.5" ["iq"] => string(3) "0.3" ["iout_flash"] => string(4) "1000" ["iout_torch"] => string(3) "400" ["vout_turnon"] => string(3) "250" ["freq"] => string(3) "1.5" ["modee"] => string(5) "1X,2X" ["efficiency"] => string(3) "90%" ["package"] => string(10) "DFN3x3-10L" } } [1] => array(25) { ["id"] => string(3) "274" ["catid"] => string(3) "107" ["title"] => string(78) "BCT31421100mA Buck/Boost Charge Pump LED Driver" ["thumb"] => NULL ["keywords"] => NULL ["description"] => NULL ["content"] => string(5422) "
GENERAL DESCRIPTION
The BCT3142 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes.
The BCT3142 incorporates a 1-wire interface to program the flash LED current at 8 levels and flash timeout at 2 leve.
The BCT3142 supports PWM dimming to adjust the LED brightness during torch application by simply providing a PWM signal to flash pin.
The BCT3142 automatically switches modes between step-up 2x and step-down 1x ensuring that LED current does not depend on the forward voltage. It switches at 1.9MHz, allowing the use of tiny components. The supply voltage ranges from 2.7V to 5.5V and is ideally suited for all applications powered by a single LI-Ion battery cell or three to four NiCd, NiMH, or Alkaline battery cells.
The BCT3142 also features a very low shutdown current, an automatic soft-start mode to limit inrush current, as well as voltage and over thermal shutdown control.
A low current sense reference voltage (47mV) allows the use of small 0603 current sensing resistors.
The BCT3142 is available in Green DFN3x3-10L package and is specified over an ambient temperature range of -40°C to +85°C.
APPLICATIONS
White LED Torch, Flash for Cell
Phones,PADs, DSCs and Camcorders
White LED Backlighting
Generic Lighting, Flash and Strobe Applications General Purpose High Current Boost
FEATURES
Output Current up to 1.1A
8 FLASH LED Current Levels Selectable by 1-wire Interface: 100%*IFLASH,90%*IFLASH……30%*IFLASH
2 Flash Timeout Levels Selectable by 1-wire Interface: 220ms,1.3s
PWM Dimming Control in Torch Mode
Ultra low RDSON:0.4Ω（1x Mode），2Ω（2x Mode）
Up to 92% Efficiency in Torch Mode
Adjustable FLASH Mode Current
1x and 2x Automatic Modes for High Efficiency
Input Voltage Range: 2.7V to 5.5V
Minimum External Components: No Inductors
High Frequency Operation: 1.9MHz
Low 47mV Reference For Low Loss Sensing
Built-In Soft Start Limits Inrush Current
Low Input and Output Ripple and Low EMI
Output Over Voltage Protection
Over-current and Over-temperature Protection
Available in Green DFN3x3-10L Package
ORDERING INFORMATION
Order Number | Package Type | Temperature Range | Marking | QTY/Reel |
BCT3142EGB-TR | DFN3x3-10L | -40°C to +85°C | DQKP XXXXX | 6000 |
Note: "XXXXX" in Marking will be appeared as the batch code.
High Efficiency Synchronous Boost Converter With Dual Independent 1.5 A Current Sources" ["thumb"] => NULL ["keywords"] => NULL ["description"] => NULL ["content"] => string(7375) "
GENERAL DESCRIPTION
The BCT3144 is a dual LED flash driver that provides a high level of adjustability within a small solution size. The BCT3144 utilizes a 2MHz or 4MHz fixed frequency synchronous boost converter to provide power to the dual 1.5A constant current LED sources. The total LED current the BCT3144 boost can deliver is 1.5A (ILED1+ ILED2). The dual 128 level current sources provide the flexibility to adjust the current ratios between LED1 and LED2 with each driver capable of delivering a maximum of 1.5A. An adaptive regulation met hod ensures the current sources remain in regulation and maximizes efficiency.
Features of the BCT3144 are controlled via an I2C comp atible interface. These features include: hardware flash and hardware torch pins (STROBE and TORCH/TEMP), a TX interrupt, and an NTC thermistor monitor. The device offers independently programmable currents in each output leg to drive the LEDs in a Flash or Movie Mode (Torch) condition.
The 2MHz or 4MHz switching frequency options, over voltage protection (OVP), and adjustable current limit allow for the use of tiny, low profile inductors and (10 µF) ceramic capacitors. The device operates over a 40°C to 85°C ambient temperature range.
APPLICATIONS
Camera Phone White LED Flash
FEATURES
1.5A Total Allowed LED Current During Operation
Dual Independent LED Current Source Programmability
Accurate and Programmable LED Current Range from 2.92mA to 1.5A
Optimized Flash LED Current During Low Battery Conditions (IVFM)
Grounded Cathode LED Operation for Improved Thermal Management
Small Solution Size:<16mm2
Hardware Strobe Enable (STROBE)
Synchronization Input for RF Power Amplifier Pulse Events (TX)
Hardware Torch Enable (TORCH/TEMP)
Remote NTC Monitoring (TORCH/TEMP)
400-kHz I2C-Compatible Interface
BCT3146(I2C Address=0x63)
-40℃ to +85℃ Operating Temperature Range
Available in Green WLCSP-12L Packages
ORDERING INFORMATION
|
Order Number
|
Package Type
|
Temperature Range
|
Marking
|
QTY/Reel
|
|
BCT3144EWC-TR
|
WLCSP-12L
|
-40°C to +85°C
|
DQKK
XXXXX |
3000
|
1. "DQKK" in Marking is product short code forBCT3144EWC-TR
2. "XXXXX" in Marking will be appeared as the batch code.
Torch" ["efficiency"] => string(3) "85%" ["package"] => string(9) "WLCSP-12L" } } [3] => array(25) { ["id"] => string(3) "260" ["catid"] => string(3) "107" ["title"] => string(125) "BCT3146
High Efficiency Synchronous Boost Converter With Dual Independent 2.0 A Current Sources" ["thumb"] => NULL ["keywords"] => NULL ["description"] => NULL ["content"] => string(5028) "
GENERAL DESCRIPTION
The BCT3146 is a dual LED flash driver that provides a high level of adjustability within a small solution size. The BCT3146 utilizes a 2MHz or 4MHz fixed frequency synchronous boost converter to provide power to the dual 2A constant current LED sources. The total LED current the BCT3146 boost can deliver is 2A (ILED1+ ILED2). The dual 128 level current sources provide the flexibility to adjust the current ratios between LED1 and LED2 with each driver capable of delivering a maximum of 2A. An adaptive regulation met hod ensures the current sources remain in regulation and maximizes efficiency.
Features of the BCT3146 are controlled via an I2C comp atible interface. These features include: hardware flash and hardware torch pins (STROBE and TORCH/TEMP), a TX interrupt, and an NTC thermistor monitor. The device offers independently programmable currents in each output leg to drive the LEDs in a Flash or Movie Mode (Torch) condition.
The 2MHz or 4MHz switching frequency options, over voltage protection (OVP), and adju stable current limit allow for the use of tiny, low profile inductors and (10 µF) ceramic capacitors. The device operates over a 40°C to 85°C ambient temperature range.
APPLICATIONS
Camera Phone White LED Flash
FEATURES
2A Total Allowed LED Current During Operation
Dual Independent LED Current Source Programmability
Accurate and Programmable LED Current Range from 3.9mA to 2A
Optimized Flash LED Current During Low Battery Conditions (IVFM)
Grounded Cathode LED Operation for Improved Thermal Management
Small Solution Size:<16mm2
Hardware Strobe Enable (STROBE)
Synchronization Input for RF Power Amplifier Pulse Events (TX)
Hardware Torch Enable (TORCH/TEMP)
Remote NTC Monitoring (TORCH/TEMP)
400-kHz I2C-Compatible Interface
-BCT3146(I2C Address=0x63)
-40℃ to +85℃ Operating Temperature Range
Available in Green WLCSP-12L Packages
ORDERING INFORMATION
Order Number | Package Type | Temperature Range | Marking | QTY/Reel |
BCT3146EWC-TR | WLCSP-12L | -40°C to +85°C | DKW XXXXX | 3000 |
1. "DKW" in Marking is product short code forBCT3146EWC-TR
2. "XXXXX" in Marking will be appeared as the batch code.
Torch" ["efficiency"] => string(3) "85%" ["package"] => string(9) "WLCSP-12L" } } } ["field"] => array(11) { [2] => array(2) { ["field"] => string(3) "tit" ["name"] => string(8) "PART No." } [3] => array(2) { ["field"] => string(11) "description" ["name"] => string(11) "Description" } [4] => array(2) { ["field"] => string(3) "vin" ["name"] => string(7) "Vin (V)" } [5] => array(2) { ["field"] => string(2) "iq" ["name"] => string(7) "IQ (mA)" } [6] => array(2) { ["field"] => string(10) "iout_flash" ["name"] => string(20) "IOUT-Flash Mode (mA)" } [7] => array(2) { ["field"] => string(10) "iout_torch" ["name"] => string(20) "IOUT-Torch Mode (mA)" } [8] => array(2) { ["field"] => string(11) "vout_turnon" ["name"] => string(23) "VOUT Turn-on Time (uS)" } [9] => array(2) { ["field"] => string(4) "freq" ["name"] => string(10) "Freq (MHz)" } [10] => array(2) { ["field"] => string(5) "modee" ["name"] => string(4) "Mode" } [11] => array(2) { ["field"] => string(10) "efficiency" ["name"] => string(10) "Efficiency" } [12] => array(2) { ["field"] => string(7) "package" ["name"] => string(7) "Package" } } ["tablename"] => string(17) "en_product_field9" } -->
Torch
Torch
White LED Driver (Serial)
|
PART No.
|
Descrition
|
Topology
|
LED Connection
|
CH
|
VCC (V)
|
VREF (mV)
|
ILIM (mA)
|
Oscillation Frequency (KHz)
|
Vovp (V)
|
Package
|
|
BCT3692B
|
High Performance, Asynchronies Boost for 10 WLED Driver
|
BOOST
|
PWM
|
1
|
2.7-5.5
|
200
|
1500
|
1100
|
38
|
SOT23-6
TSOT23-6 |
|
BCT3756/E
|
WLED Driver with PWM Brightness Control in Small Package
|
BOOST
|
PWM
|
1
|
2.7-5.5
|
200
|
1500
|
1100
|
38
|
DFN2x2-6L
|
|
BCT3401
|
Backlight Driver
|
BUCK
|
PWM/PFM
|
1
|
2.5-5.5
|
100
|
1800
|
1100
|
SOT23-5
|
White LED Driver (Parallel)
Order Number | Package Type | Temperature Range | Marking | QTY/Reel |
BCT3220ELA-TR | DFN2x2-8L | -40°C to +85°C | 3220 | 3000 |
4 Channel LED Driver with Digital Pulse Brightness Control" ["thumb"] => string(0) "" ["keywords"] => string(0) "" ["description"] => string(0) "" ["content"] => string(2075) "
GENERAL DESCRIPTION
The BCT3364 is a high performance white LED driver. The BCT3364 uses an internal resistor to set the bias current for four LEDs, which are matched to 1.5%. The BCT3364's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency. The BCT3364 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness.
Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse. The Dimming of white LEDs current can be achieved by applying a pulse signal to the EN pin. There are totally 16 steps of current could be set by users. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.
APPLICATIONS
Cell Phones
PDAs
Digital Cameras, Camcorders
Portable Instrumentation
Battery Powered Equipment
FEATURES
2.7V to 5.5V Supply Voltage Range
16 Steps Brightness Control with One Wire Interface
20mA full scale current
1.5% LED Current Matching (TYP)
Low 50mV Dropout at 20mA
Thermal Shutdown Protection
Low Input Noise and EMI
RoHS Compliant and 100% Lead (Pb)-Free, DFN2x2-8L Package
6 Channel Constant Current LED Driver Low Dropout Current Sink" ["thumb"] => string(54) "a:1:{i:0;a:2:{s:5:"thumb";s:0:"";s:5:"photo";s:0:"";}}" ["keywords"] => string(0) "" ["description"] => string(0) "" ["content"] => string(2036) "
GENERAL DESCRIPTION
The BCT3256 is a high performance constant current white LED driver. The BCT3256 uses an internal resistor to set the bias current for 6 LEDs, which are matched to 3%. The BCT3256's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency. The BCT3256 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness.
Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse interface. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN pin. There are totally 16 steps of current could be set by users. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.
APPLICATIONS
Cell Phones
PDAs
Digital Cameras, Camcorders
Portable Instrumentation
Battery Powered Equipment
FEATURES
Low 50mV Dropout at 20mA
20mA full scale current
<3% LED Current Matching (TYP)
One Wire interface for 16-Step Brightness Control
2.7V to 5.5V Supply Voltage Range
Thermal Shutdown Protection
Low Input Noise and EMI
RoHS Compliant and 100% Lead (Pb)-Free, QFN-16L Package