LTC4215CGN#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Overcurrent Protection, Adjustable Current Limit, Thermal Shutdown, Wide Input Voltage Range
• Package: 16-Lead SSOP (Shrink Small Outline Package)
• Essence: LTC4215CGN#TRPBF is a power management IC designed for hot-swappable applications. It provides protection and control features to ensure safe insertion and removal of circuit boards in live systems.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 2.9V to 15V
• Output Voltage Range: 0V to 15V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)
• Current Limit Accuracy: ±10%
• Overcurrent Fault Threshold: Adjustable from 1mV to 100mV
• Thermal Shutdown Temperature: 150°C

Pin Configuration

The LTC4215CGN#TRPBF has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FLT: Fault Indicator Output
4. ILIM: Current Limit Programming
5. VOUT: Output Voltage
6. EN: Enable Input
7. PG: Power Good Indicator Output
8. SENSE+: Positive Current Sense Input
9. SENSE-: Negative Current Sense Input
10. REF: Reference Voltage Output
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Hot-Swap Controller with Integrated Power MOSFET
• Adjustable Current Limit for Overcurrent Protection
• Thermal Shutdown Protection
• Power Good Indicator Output
• Fault Indicator Output
• Enable Input for System Control
• Wide Input Voltage Range for Versatile Applications

Advantages and Disadvantages

Advantages: - Provides safe hot-swapping capability for live systems - Adjustable current limit allows customization for different applications - Efficient power management with low quiescent current - Wide input voltage range accommodates various power sources - Integrated power MOSFET simplifies circuit design

Disadvantages: - Limited to 16-Lead SSOP package, may not be suitable for all form factors - Requires external components for complete functionality - Not suitable for high-power applications due to limited current handling capacity

Working Principles

The LTC4215CGN#TRPBF is designed to facilitate the hot-swapping of circuit boards in live systems. It incorporates a power MOSFET that acts as a switch between the input and output. The device monitors the current flowing through the MOSFET and compares it to the programmed current limit. If an overcurrent condition is detected, the LTC4215CGN#TRPBF shuts off the MOSFET to protect the system.

Additionally, the IC features thermal shutdown protection, which activates when the temperature exceeds the specified threshold. This prevents damage to the device and surrounding components.

The enable input allows the system to control the operation of the LTC4215CGN#TRPBF. When the enable signal is low, the device is in standby mode, consuming minimal power. When the enable signal is high, the IC becomes active and performs its intended functions.

Detailed Application Field Plans

The LTC4215CGN#TRPBF is commonly used in various applications where hot-swapping of circuit boards is required. Some of the specific application fields include:

1. Telecom and Networking Equipment: Enables safe replacement of line cards, power modules, and other circuit boards in live network systems.
2. Data Centers: Facilitates maintenance and upgrades of servers and storage devices without interrupting the operation of the data center.
3. Industrial Control Systems: Allows for the hot-swapping of control boards in industrial automation systems, minimizing downtime during maintenance or repairs.
4. Medical Devices: Provides a safe method for replacing faulty components in medical equipment without disrupting patient care.

Detailed and Complete Alternative Models

• LTC4215CGN#PBF: Similar to LTC4215CGN#TRPBF but available in a 16-Lead PDIP (Plastic Dual In-Line Package) package.
• LTC4215IGN#TRPBF: A variant with an extended operating temperature range (-40°C to 125°C) suitable for harsh environments.
• LTC4215HGN#TRPBF: Higher current handling capacity version with an adjustable current limit up to 10A.

These alternative models offer similar functionality with slight variations in package type, temperature