LT3593ES6
Compact LED driver ICs for white backlight and multi-segment applications
Manufacturer： linear-technology
series introduction
# LT3593ES6 Product Series Introduction
## 1. Overview
The LT3593ES6 is a highly versatile and efficient product series within the realm of power management integrated circuits. Manufactured by Linear Technology (now part of Analog Devices), this series is designed to address a wide range of power conversion and control requirements in various electronic applications.
## 2. Key Features
### 2.1 High - Efficiency Operation
- The LT3593ES6 series is engineered to achieve high efficiency in power conversion. It utilizes advanced switching techniques and low - on - resistance internal MOSFETs. This results in minimal power loss during the conversion process, which is crucial for battery - powered devices as it helps to extend battery life. For example, in a typical application where it is used to step - up or step - down the voltage, the efficiency can reach up to 90% or even higher, depending on the input and output voltage levels and the load conditions.
### 2.2 Wide Input and Output Voltage Ranges
- **Input Voltage**: It can accept a wide range of input voltages. This flexibility allows it to be used in different power supply scenarios. For instance, the input voltage can range from a few volts to a relatively high voltage, typically from 2.7V to 40V. This makes it suitable for applications powered by various sources such as single - cell lithium - ion batteries (around 3.7V), multiple - cell alkaline batteries, or regulated power supplies.
- **Output Voltage**: The output voltage can be adjusted over a wide range as well. It can be set to values as low as a few volts for powering low - voltage components like microcontrollers or as high as 36V for driving high - voltage loads such as certain types of LEDs or other high - power devices.
### 2.3 Integrated Protection Features
- **Over - Current Protection (OCP)**: The LT3593ES6 is equipped with over - current protection to safeguard the device and the connected load from excessive current. If the current flowing through the circuit exceeds a predefined threshold, the OCP mechanism will automatically limit the current or shut down the device to prevent damage. This is particularly important in applications where short - circuits or sudden load changes can occur.
- **Over - Voltage Protection (OVP)**: In case the output voltage exceeds a safe level, the OVP feature kicks in. It protects the connected components from over - voltage stress, which could otherwise lead to component failure. This is especially crucial when dealing with sensitive electronic components.
- **Thermal Shutdown**: To prevent overheating, the device has a thermal shutdown feature. When the internal temperature of the LT3593ES6 rises above a certain limit, it will automatically shut down until the temperature drops to a safe level. This ensures the long - term reliability of the device.
### 2.4 Adjustable Switching Frequency
- The switching frequency of the LT3593ES6 can be adjusted over a wide range, typically from 100kHz to 2.2MHz. This adjustability offers several advantages. A higher switching frequency allows for the use of smaller external components such as inductors and capacitors, which can reduce the overall size of the power supply circuit. On the other hand, a lower switching frequency can be selected to minimize switching losses and electromagnetic interference (EMI) in applications where EMI is a concern.
## 3. Applications
### 3.1 Portable Electronic Devices
- In portable devices such as smartphones, tablets, and portable media players, the LT3593ES6 can be used for power management. It can step - up the battery voltage to power components that require a higher voltage, such as the display backlight or the audio amplifier. Its high - efficiency operation helps to conserve
Images for reference
TSOT-23-6_05-08-1636
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