T6340A Low-Dropout, Constant-Current FOR 腳踏車燈 手電筒可推<有30種CODE可選用>

GENERAL DESCRIPTION
T6340A provides the low-dropout bias supply and the high performance alternative solution for the white LEDs application. The build-in Low Voltage Detection and Indication function can provide the internal LED dimming. Morse Code S.O.S Signal and Single Flash Loop Flicker Function are supported with the significantly lower dropout voltage. The T6340A is available in TO-252, SOP-8 and SOT-23 lead-free package.
FEATURES
• Low Voltage Detection and Indication: Detect Voltage Level Options by External Resistor
• Up to 700mA LED Bias Current
• External Resistor to set Output Current
• Simple LED Dimming Control
• Build-in Morse Code S.O.S Signal and Single Flash Loop Flicker Function
• Low Dropout Voltage
• Low 0.05uA Shutdown Current
• 2.7V to 6V Supply Voltage Range
• TO-252, SOP-8 and SOT-23 lead-free Package
• ESD Human Body Mode Over 5KV
• Thermal Protection 160 °C

APPLICATIONS
• Handheld Electronics
• Flash Light
• Lighting

資料來源:凱鈺科技

TF-331 Web Server Controller

The TF-331 Web Server Controller provides a very low cost, high performance SoC solution for consumer, networking and industrial device manufacturers that require remote monitoring, control and management through the LAN or Internet using a Web browser via broadband or dial-up network.
TCP/IP protocol stack and networking utilities are embedded in the internal 64KB ROM which reduces software development efforts and improves performance. The TF-331 includes two UARTs, (one supports high speed, up to 1Mbps), a 10/100M Ethernet MAC and five GPIO ports to connect different devices. The performance of the TF-331 is further improved with the use of hardware Protocol Accelerators and flexible DMA engines.
The hardware Protocol Accelerator in the TF-331 accelerates the handling of TCP, IP, UDP and ICMP protocols. Nine DMA channels are used for data transfer, no CPU intervention is required to serve these functions. The pipelined RISC CPU in the TF-331 is used for handling high-level protocol layer applications. Up to 4MB of SRAM and Flash memory can be addressed by the TF-331.
The HTTP server software and most applications can be run using the embedded 24KB of SRAM without adding any external memory.
The high speed UART interface can be used for connecting to devices such as Bluetooth or modem. The built-in 10/100Mbps Ethernet MAC on the TF-331 allows easy connection to the LAN. When connected to the LAN, the external flash write access capability can be used for online firmware update.
With the bundled HTTP Server software and the low memory requirements, the TF-331 is the most cost effective solution for implementing an embedded web server design.

資料來源: 泰發科技

T8602 High Voltage AC to DC LED Driver FOR AC產品需調光皆可以推廣<主推>

GENERAL DESCRIPTION
The T8602 is a power supply IC for LED driver that had a characteristic to operate without electrolytic capacitors which is necessary for the DC power supply structure. The IC has the control circuit built-in one
package. And it is realized miniaturization, low cost by removing electrolytic capacitors. Moreover, it is realized long operating life and high energy efficiency of LED lamp. The T8602 is available in SOT-23 and SOP-8 Lead-free package.

FEATURES
• Supports the universal AC input voltage
• PWM controls the power MOSFET at average oscillator frequency (67kHzTyp), feedback controls that assumed reference voltage (0.3VTyp) a standard to keep a fixed LED output current. Stop operating when a  VCC voltage became less than Operating Supply Voltage.
• Over Voltage Protection / Thermal Shut Down（Stop operating by latch mode）
• Adjustable Over Current Protection
• Doing the input voltage monitor level in the 0V neighborhood by intermittent operation and operating repeatedly (In the case of the use to have power factor or dimming function, it is possible by adjustment of the voltage monitor)
• PWM and linear dimming.

Applications
• LED/Display Back Light Driver
• Lightings
• Communication Devices
• Handheld Electronics

資料來源: 凱鈺科技

T8601 High Voltage LED Driver 球泡燈 T8產品可推<不可調光>

GENERAL DESCRIPTION
The T8601 is a low cost, simple, high-efficiency off-line LED driver IC. A built-in high voltage regulator enables the T8601 to work from 8Vdc to 450Vdc. The T8601 is operated in an open loop, peak current mode to produce a constant LED current rather than constant voltage. The T8601 drives an external power MOSFET in either a constant frequency or constant off-time mode. The T8601 features PWM and linear dimming capability. To control LED brightness, the LED current can be controlled by applying a PWM signal with a duty ratio of 0~100% and a frequency up to a few kilohertz, or it can be adjusted linearly to any value between 0 ~ 250mV(typ.) by applying an analog voltage to the LD pin. The T8601 is available in SOP-8 Lead-free package.

FEATURES
• Switch-mode controller for single switch LED driver
• Wide operating voltage range : 8Vdc ~ 450Vdc
• Open-loop peak current mode controller without loop compensation
• Constant frequency or constant off-time mode
• PWM or analog dimming capability
• Few external components required
• SOP-8 Lead-free Package

Applications
• TFT flat panel backlighting
• AC/DC LED lamps
• DC/DC, AC/DC LED drivers
• T5, T8 LED line bars
• MR-16 lamps
• Signage or decorative LED lamps

資料來源: 凱鈺科技

T8611 High Voltage Constant-Current Driver FOR 燭光燈 T8產品可推<不可調光>主推

GENERAL DESCRIPTION
The T8611 is a simple, high voltage, linear current regulator. It drives LEDs at 15mA~25mA(±10%) at an input voltage of 5V~90Vdc. The T8611 can be used as a constant current source or a constant current
sink. Multiple T8611 can be connected in parallel to supply higher constant currents, such as double or higher current. For wider application, the T8611 is available in SOT-89 and SOT-23.

FEATURES
• Wide operating voltage range : 5V to 90V
• Output current tolerance: ±10%
• Connected in parallel for higher current
• RoHS and green compliant packages:
SOT-89 and SOT-23
APPLICATIONS

• LED Driver
• LED traffic light
• Constant current source or current sink
• Signage
• Decorative LED lamp

資料來源:凱鈺科技

T6335A Constant Current Regulator FOR 手電筒

GENERAL DESCRIPTION
The T6335A low-dropout bias supply for white LED is a high-performance used in conventional white LED designs. The T6335A has lower bias variation with supply voltage variation, significantly lower dropout voltage Low Shutdown Current in some applications, significantly improved efficiency from DC 2.7V to 5V.
The T6335A is available in SOT-89 and TO-252 lead-free package.

FEATURES
• Constant Current Regulator
• Constant Current Option : 150/210/225/240/260/280/300/320/350 mA
• Low Dropout Voltage
• Low 0.1 uA Shutdown Supply Current
• SOT-89 and TO-252 lead-free Package
• ESD Human Body Mode Over 5KV
• 2.7V to 5V Supply Voltage Range
• Build in Thermal Protect 160 °C

APPLICATIONS
• Flash Light
• Lighting
• Portable Communication Devices
• Handheld Electronics
• DC/DC LED driver

資料來源:凱鈺科技

T6333A PWM Control 1.5A Step-Down Converter FOR 車燈

GENERAL DESCRIPTION
The T6333A is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 42V and provides an externally adjustable output current of up to 1.5A. Depending upon supply voltage and external components, this can provide up to 58 watts of output power. The T6333A includes the output switch and a highside output current sensing circuit, which uses
an external resistor to set the nominal average output current. Output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. The ADJ pin will accept either a DC voltage or a PWM waveform. Depending upon the control frequency, this will provide either a continuous or a gated output current. The PWM filter components are contained within the chip. The
T6333A is available in SOT-23 and SOP-8 Lead-free package.

FEATURES
• Wide Input Voltage Range: 7V to 42V
• LED Output Current Up to 1.5A
• Soft-start
• Single pin on/off and brightness control using DC voltage or PWM
• High efficiency (up to 97%)
• Up to 1MHz switching frequency
• Typical 5% output current accuracy
• SOT-23 and SOP-8 Lead-free Package

資料來源: 凱鈺科技