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Powtech |
Single-stage linear LED driver |
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PowTech |
Current-mode PWM Controller power saving operation at no load or light load condition, PWM frequency is reduced to minimize switching loss and low standby power and high efficiency is thus achieved. PT4201 also features low VDD startup current which also contributes to low stan |
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PowTech |
1.2A Step-down High Brightness LED Driver Simple low parts count Wide input voltage range: 6V to 30V Up to 1.2A output current Single pin on/off and brightness control using DC voltage or PWM Up to 1MHz switching frequency Typical 5% output current accuracy Inherent open-circui |
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Powtech |
Single-stage linear LED driver 37 ℃/W θJA （SOT89-3L） PN （ 2） 100 ℃/W θJA （CPC4） PN （ 2） NA ℃/W θJA （ESOP-8） PN （ 2） 63 ℃/W TJ -40~150 ℃ TSTG -65~150 ℃ ESD （ 3） 2 KV 1：，。，， 。 。，，。 2：PCB ：， 2Oz， 2Inch2， 8 。 3：，100pF 1.5KΩ 。 ILED 220Vac <60 |
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PowTech |
30V/350mA High-Brightness LED Driver |
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Powtech |
Dual channel single segment linear LED driver |
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Powtech |
White LED Step-Up Converter z z z z z z z z Drives Up to 5 Series White LEDs from 2.5V Drives Up to 8 Series White LEDs from 3.6V Up to 87% Efficiency 1.2MHz Fixed Switching Frequency Low 104mV Feedback Voltage Open Load Shutdown Soft Start/PWM Dimming SOT23-6 Packages APPLICA |
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Powtech |
Universal High Brightness LED Driver z Proprietary constant-current control. z Wide input range from 18V to 450V or 110VAC/220VAC z Applications from a few mA to more than 1A Output z up to hundreds of LEDs z PWM Low-Frequency Dimming via Enable pin z Linear Dimming via LD pin z Frequen |
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PowTech |
1.2A Step-down HB LED Driver Simple low parts count Wide input voltage range: 5V to 30V Up to 1.2A output current Single pin on/off and brightness control using DC voltage or PWM Typical 3% output current accuracy Inherent open-circuit LED protection High |
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Powtech |
2 Channel 1x/1.5x Auto-Adjust Charge Pump White LED Driver z 2.7V-5.5V input range z 1x/1.5x auto-adjust charge pump z LED fault detection z Programmable 8 level LED currents from 3mA to 25mA z < ±2% LED maximum current mismatch between channels z Less than 1µA shut down current z Built-in soft-start and mod |
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PowTech |
1-10W Primary Side CC Regulator a complete set of integrated protection functions to protect against all fault conditions including output open/short circuit, line under-voltage, and over temperature shut down. The PT4227 is available in an DIP-8L package. FEATURES |
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PowTech |
50V/1.5A Step-down High Brightness LED Driver The PT4115E is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. The device operates from an input supp |
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PowTech |
Step-down High Brightness LED Controller Simple low parts count Wide input voltage range: 6V to 60V High efficiency (up to 97%) Single pin on/off and brightness control using DC Voltage or PWM Up to 1MHz switching frequency Adjustable Constant LED Current Typical 3% output cur |
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PowTech |
WLED Driver to protect itself from fault conditions including built-in open lamp over voltage protection, cycle-by-cycle current limit, over temperature shutdown, input under voltage lock out and integrated soft-start. Additionally, PT4112 provides a driver outp |
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PowTech |
Primary Side CC Regulator a complete set of integrated protection functions to protect against all fault conditions including output open/short circuit, line under-voltage, and over temperature shut down. The PT4230 is available in a SOP-8 package. ORDERIN |
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PowTech |
Universal High Brightness LED Driver Support 20VDC-450VDC input range application LED string up to hundreds of diodes Built-in 20V/350mA low side power switch Low side power switch extendable Up to 100% duty cycle 0.5V-2.5V analog dim and PWM dim acceptable Built in 4m |
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PowTech |
Primary Side CC Regulator z z z z z z z z z z CC Control Without Secondary Feed back Compensates transformer Inductor Variation Compensates Line Voltage Variation Drive NPN or DNMOS Output Over Voltage Protection Output Short Circuit Protection Feedback resistor open circuit |
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Powtech |
High Efficiency White LED Driver to protect itself from fault conditions including built-in open load protection, cycle-by-cycle current limit, over temperature shutdown, input under voltage control and integrated soft-start. The PT4110 is available in SOT-89-5 and SOP-8 packages. |
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PowTech |
Non-isolated single-stage active PFC LED driver chip |
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PowTech |
1-5W Primary Side CC Regulator a complete set of integrated protection functions to protect against all fault conditions including output open/short circuit, line under-voltage, and over temperature shut down. The PT4223 is available in an SOP-8package. FEATURES |
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