Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Overvoltage Protection Controller |
| Applications | Cell Phones, Digital Cameras, Media Players |
| Mounting Type | Surface Mount |
Tổng quan
Description
The MAX4840AEXT+T is a part of the MAX4840 family, which are integrated circuits designed for power management applications. Specifically, it is a high-performance, low-power, overvoltage, and overcurrent protection IC. This device is typically used in portable and consumer electronics to safeguard systems from electrical faults. It features an internal 0.15Ω (typical) on-resistance power switch and offers protection against overvoltage by disconnecting the load when the input surpasses a predefined threshold. Additionally, it provides robust protection against overcurrent conditions, thereby ensuring enhanced reliability and safety of the connected devices.
Key features include low operating power consumption, a fast response time to voltage or current anomalies, and the ability to support hot-swapping. The MAX4840AEXT+T is packaged in a compact TDFN or TSOP package, making it suitable for space-constrained applications. The "+T" suffix indicates that the device is supplied in tape and reel format, which is ideal for automated PCB assembly processes.
Key features include low operating power consumption, a fast response time to voltage or current anomalies, and the ability to support hot-swapping. The MAX4840AEXT+T is packaged in a compact TDFN or TSOP package, making it suitable for space-constrained applications. The "+T" suffix indicates that the device is supplied in tape and reel format, which is ideal for automated PCB assembly processes.
Equivalent
The MAX4840AEXT+T is a power switch with integrated current limiting and thermal shutdown features. Equivalent products may include the TPS22924C from Texas Instruments, the AP22800 from Diodes Incorporated, and the FPF2700 from ON Semiconductor. These alternatives share similar functionalities, such as current limiting and thermal protection. Always verify pin compatibility and specific electrical characteristics to ensure suitability for your application.
Features
The MAX4840AEXT+T is a quad, SPST (single-pole, single-throw) switch designed for USB 2.0 high-speed data applications. Key features include:
1. High Bandwidth: It provides a high bandwidth of 900 MHz, ensuring minimal signal degradation for fast data transmission.
2. Low On-Resistance: The switch has a low on-resistance of 4Ω, which helps maintain signal integrity and reduce power loss.
3. Low Capacitance: With a low capacitance of 3.5pF, it minimizes signal distortion, making it suitable for high-speed data signals.
4. Wide Supply Range: The device operates over a wide supply voltage range from 2.7V to 5.5V, offering flexibility in power supply configurations.
5. Compact Package: It is available in a small, 14-pin TSSOP package, which is beneficial for space-constrained applications.
6. Latch-Up Protection: The switch includes built-in ESD protection and latch-up immunity, enhancing reliability and durability.
7. Applications: Ideal for USB 2.0 applications, consumer electronics, and portable devices that require efficient data routing.
These features make the MAX4840AEXT+T suitable for applications demanding high-speed data switching with low power consumption.
1. High Bandwidth: It provides a high bandwidth of 900 MHz, ensuring minimal signal degradation for fast data transmission.
2. Low On-Resistance: The switch has a low on-resistance of 4Ω, which helps maintain signal integrity and reduce power loss.
3. Low Capacitance: With a low capacitance of 3.5pF, it minimizes signal distortion, making it suitable for high-speed data signals.
4. Wide Supply Range: The device operates over a wide supply voltage range from 2.7V to 5.5V, offering flexibility in power supply configurations.
5. Compact Package: It is available in a small, 14-pin TSSOP package, which is beneficial for space-constrained applications.
6. Latch-Up Protection: The switch includes built-in ESD protection and latch-up immunity, enhancing reliability and durability.
7. Applications: Ideal for USB 2.0 applications, consumer electronics, and portable devices that require efficient data routing.
These features make the MAX4840AEXT+T suitable for applications demanding high-speed data switching with low power consumption.
Pinout
The MAX4840AEXT+T is a power management IC designed for industrial and automotive applications, specifically for high-side switch control. It comes in a 12-pin TDFN (Thin Dual Flat No-leads) package. Here’s a brief overview of its pin functions:
1. IN - Input voltage for the IC.
2. OUT - Output connected to the load.
3. GND - Ground reference for the IC.
4. EN - Enable pin to turn the IC on or off.
5. FLT - Fault output, indicating fault conditions.
6. OVLO - Over-voltage lockout input.
7. UVLO - Under-voltage lockout input.
8. ILIM - Current limit setting input.
9. CIN - Capacitor input for stability.
10. COUT - Capacitor output for stability.
11. TIMER - Timer setting for fault conditions.
12. N/C - No Connect, not internally connected.
These pins serve functions including power supply, control, fault indication, and stability, making the MAX4840A suitable for robust power management solutions.
1. IN - Input voltage for the IC.
2. OUT - Output connected to the load.
3. GND - Ground reference for the IC.
4. EN - Enable pin to turn the IC on or off.
5. FLT - Fault output, indicating fault conditions.
6. OVLO - Over-voltage lockout input.
7. UVLO - Under-voltage lockout input.
8. ILIM - Current limit setting input.
9. CIN - Capacitor input for stability.
10. COUT - Capacitor output for stability.
11. TIMER - Timer setting for fault conditions.
12. N/C - No Connect, not internally connected.
These pins serve functions including power supply, control, fault indication, and stability, making the MAX4840A suitable for robust power management solutions.
Manufacturer
The MAX4840AEXT+T is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacture of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company provides a wide range of solutions for various industries, including communications, computing, consumer electronics, automotive, and industrial applications. Analog Devices is known for its high-performance analog technology, which forms the backbone of modern electronic systems.
Application
The MAX4840AEXT+T is primarily used in applications requiring battery management and overvoltage protection. It is suitable for portable consumer electronics such as smartphones, tablets, and laptops, where safeguarding the battery and system circuits from overvoltage conditions is crucial. Additionally, it can be applied in power management systems and any devices that require efficient power path control and battery safety features. Its integration in such systems ensures reliability and extends the life of electronic components by preventing voltage spikes.
Package
The MAX4840AEXT+T is housed in a 14-pin TDFN (Thin Dual Flat No-Lead) package.
