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LTC3226EUD#TRPBF
+BOMIC 2CELL SUPERCAP CHARGE 16QFN
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メーカーテキサス・インスツルメンツ
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メーカー品番 #LTC3226EUD#TRPBF
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データシート LTC3226EUD#TRPBF DataSheet
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パッケージ WFQFN-16
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在庫状況4213
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | PowerPath™ |
| Part Status | Active |
| Applications | Supercapacitor Charger |
| Supply Current | 10µA |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
概要
Description
The LTC3226 features automatic mode switching between 1x and 2x boost operation to optimize efficiency based on the input voltage. It includes a serial interface for programming output currents and provides multiple output channels, allowing for independent brightness control of each LED string. This device supports PWM dimming and fault detection, enhancing flexibility and reliability in applications.
It comes in a compact, thermally enhanced 20-lead QFN package, making it ideal for space-constrained designs. The LTC3226EUD#TRPBF is particularly useful for battery-powered devices, such as smartphones and portable media players, where efficient power conversion and low noise are critical.
Equivalent
1. MAX16823 - by Maxim Integrated, a high-efficiency, high-current LED driver.
2. TPS61165 - by Texas Instruments, a high-brightness LED driver with integrated switch.
3. AP8802 - by Diodes Incorporated, a high-current step-down DC-DC converter for LED applications.
Each has specific features; verify compatibility based on your application requirements.
Features
1. Efficiency and Operation: It utilizes a charge pump to efficiently drive up to 18 LEDs with individual current sources, ensuring even brightness across LEDs.
2. Current Regulation: Offers precise LED current regulation, supporting programmable currents for backlighting and status indications.
3. Multiple Outputs: Provides six independently controlled LED channels, allowing for versatile design configurations.
4. Compact Design: Available in a compact 16-lead 3mm × 3mm QFN package, making it suitable for space-constrained applications.
5. Input Voltage Range: Operates over a wide input voltage range, typically from 2.9V to 5.5V, accommodating various power sources.
6. Protection Features: Includes built-in protection features such as short-circuit protection and thermal shutdown to enhance reliability.
7. Dimming Control: Supports PWM dimming control for flexible brightness adjustment.
These features make the LTC3226EUD#TRPBF ideal for handheld devices, mobile phones, and other battery-powered applications requiring efficient LED driving.
Pinout
1. LED Outputs (LED1-LED6): The pins for connecting up to six LEDs.
2. Current Programming (C1+, C1-, C2+, C2-): For charge pump capacitors.
3. Digital Control (EN, SCL, SDA, RST): Enable pin and I2C interface for controlling LED currents and settings.
4. Power Supply (VIN, VOUT, GND): Main power input, output, and ground connections.
5. External Components (CPO, CSP, CSN): For external capacitors and sensing.
This device operates with a 2.9V to 5.5V input range, making it suitable for portable applications. It features automatic mode switching between 1x and 1.5x charge pump modes to optimize efficiency based on battery voltage. The LTC3226EUD#TRPBF also includes features like low shutdown current, open/short LED detection, and thermal protection.