pinout, Author at DataSheetCafe.com

This is an LED driver chip manufactured by PowTech. It is designed to provide efficient power conversion and stable performance for driving LEDs, especially for applications requiring high efficiency and precision control.

Part Number: PT4515

Function: Single-stage linear LED driver chip

Package: TO252-2L, SOT89-3L Type

Manufacturer: PowTech

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PT4515 LED Driver

Description

PT4515 is a high-precision linear LED driver chip with a single-stage architecture and no EMI problems. The system does not require magnetic components such as inductors or transformers, and the entire system structure is simple and low-cost.

This LED Driver Chip uses patented current control and compensation technology. The current accuracy can be controlled within ±3%, which can be set by external resistors, and the peak current is 60mA. Multiple chips can be used in parallel to increase current output capacity. PT-4515 has built-in over-temperature and high-voltage automatic current reduction function, and over-temperature protection function.

PT4515 has a high-voltage current drop function. When the voltage of the chip OUT pin is too high (>70V), the output current will be gradually reduced to keep the output power at an approximately constant value to improve the stability of the system. When the high-voltage current drop is in effect, the output current is reduced to a maximum of one-third of the set output current. The system will continuously detect the OUT pin voltage. When the OUT pin voltage drops below 70V, the system current returns to normal.

Features

1. Simple peripheral circuit, no magnetic components required

2. Internally integrated high-voltage startup circuit

3. LED output current is adjustable, supporting a maximum peak current of 60mA

4. Supports multi-chip parallel connection to increase current output capability

5. ±3% LED output current accuracy

6. Excellent EMI performance

7. Over-temperature automatic current adjustment function

8. High-voltage automatic current adjustment function

9. Over-temperature protection function

Pinouts

PT4515 datasheet pinout

Applications

1. LED candle lamp

2. LED bulb/spotlight

3. Other compact LED lighting products

Advantages of use:

1. Easy charging via USB power

2. Low-cost solution due to simple circuit configuration

3. Safe charging possible due to built-in various protection functions

Other data sheets within the file: PT4515ETOW, PT4515E89C

PT4515 Datasheet PDF

General-Purpose Operational Amplifier

This is a high-performance 32-bit ARM Cortex-M4 based microcontroller manufactured by STMicroelectronics. The chip is suitable for a variety of embedded applications, especially projects that require high-speed data processing, real-time control, and signal processing.

The STM32F411RE devices is based on the high-performance Arm Cortex -M4 32-bit RISC core operating at a frequency of up to 100 MHz. The Cortex-M4 core features a floating-point unit (FPU) single precision, which supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU), which enhances application security.

Part Number: STM32F411RE, STM32F411RET6

Function: 32-bit MCU, 512 Kbytes of flash memory ( E type )

Package: R type is 64 Pins. T type is LQFP type.

Manufacturer: STMicroelectronics

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STM32F411RE datasheet

Description

The STM32F411CC, STM32F411CE belongs to the STM32 Dynamic Efficiency product line (with products combining power efficiency, performance and integration) while adding a new innovative feature called Batch Acquisition Mode (BAM) allowing to save even more power consumption during data batching.

The STM32F411RC, STM32F411RE incorporate high-speed embedded memories (up to 512 Kbytes of flash memory, 128 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB bus and a 32-bit multi-AHB bus matrix.