IC Phoenix logo

Home ›  B  › B32 > BTS5440G

BTS5440G from INFINCON

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

BTS5440G

Manufacturer: INFINCON, INFINEON, LNFINEON

Smart High Side Switches

Partnumber Manufacturer Quantity Availability
BTS5440G INFINCON, INFINEON, LNFINEON 1673 In Stock

Description and Introduction

Smart High Side Switches The BTS5440G is a power switch manufactured by Infineon Technologies. Below are its key specifications:

- **Type**: Smart High-Side Power Switch  
- **Output Current (Continuous)**: 40 A  
- **Output Current (Peak)**: 60 A  
- **On-State Resistance (RDS(on))**: 4.5 mΩ (typical)  
- **Supply Voltage (VBB)**: 4.5 V to 28 V  
- **Logic Input Voltage (VIN)**: 3.3 V or 5 V compatible  
- **Protection Features**:  
  - Overcurrent protection  
  - Short-circuit protection  
  - Overtemperature shutdown  
  - Undervoltage lockout  
- **Package**: PG-TO263-7 (D2PAK-7)  
- **Operating Temperature Range**: -40°C to +150°C  
- **Diagnostic Features**: Current sense, status feedback  

This device is designed for automotive and industrial applications, providing robust protection and diagnostics.  

(Source: Infineon Technologies datasheet for BTS5440G)

Application Scenarios & Design Considerations

Smart High Side Switches# Technical Documentation: BTS5440G High-Side Power Switch

 Manufacturer : INFINEON  
 Document Version : 1.0  
 Last Updated : October 2023

---

## 1. Application Scenarios

The BTS5440G is a protected single-channel high-side power switch from Infineon's PROFET™ (PROtected FET) family, designed for robust and intelligent power distribution in 12V and 24V automotive and industrial systems. It integrates a vertical power MOSFET with comprehensive protection and diagnostic features, enabling safe and reliable control of resistive, inductive, and capacitive loads.

### 1.1 Typical Use Cases

*    Automotive Body Electronics: 
    *    Seat Heating & Ventilation Control:  Directly drives PTC (Positive Temperature Coefficient) heating elements or fan motors with precise PWM (Pulse-Width Modulation) control for comfort settings.
    *    Power Window & Sunroof Drives:  Manages DC motors, with inherent protection against stall conditions (overload) and reverse polarity.
    *    Interior & Exterior Lighting:  Controls LED headlight modules, daytime running lights (DRLs), and interior ambient lighting strips. Its fast switching capability is suitable for PWM dimming.
    *    Locking Systems:  Powers actuators for central locking and trunk release mechanisms.

*    Industrial Automation: 
    *    Solenoid & Valve Actuation:  Drives 24V industrial solenoids for pneumatic or hydraulic control systems. The inductive load handling and clamp protection are critical here.
    *    Small DC Motor Control:  Used in conveyor belts, small pumps, or actuator controls where integrated diagnostics (like open load detection) simplify system monitoring.
    *    Heater Control:  Manages industrial process heaters or defrosting elements.

### 1.2 Industry Applications

*    Automotive:  Primarily in Body Control Modules (BCMs), dedicated seat/lighting control units, and zone controllers.
*    Industrial Control:  Programmable Logic Controller (PLC) output modules, distributed I/O systems, and machinery control panels.
*    Consumer/Commercial Appliances:  High-reliability appliances requiring robust switching, such as coffee machines or vending machine components.

### 1.3 Practical Advantages and Limitations

 Advantages: 
*    High Integration:  Combines power switch, driver, protection, and diagnostics in one package (PG-TO-252-5), reducing board space and component count.
*    Comprehensive Protection:  Features include:
    *    Overload & Short-Circuit Protection:  Current limitation with adjustable response time via external capacitor (`CIL`).
    *    Overtemperature Shutdown:  With automatic restart upon cooling.
    *    Overvoltage Clamp:  Protects against load dump and inductive kickback.
    *    Reverse Battery Protection:  Can withstand negative supply voltages.
    *    Ground Loss & Open Load Detection:  In ON and OFF states.
*    Excellent Diagnostic Feedback:  The `IS` (sense) pin provides a current-proportional signal for precise load current monitoring and fault indication.
*    Low Standby Current:  Essential for automotive applications with strict quiescent current requirements.

 Limitations: 
*    Power Dissipation:  Limited by package thermal resistance. Continuous high-current operation requires careful thermal management and heatsinking.
*    Switch Configuration:  Only available as a high-side switch. Low-side switching configurations require a different device or topology.
*    Cost:  For very simple, non-critical switching tasks with no need for diagnostics, a discrete MOSFET solution may be more cost-effective.

---

## 2. Design Considerations

### 2.1 Common Design Pitfalls and Solutions

*    Pitfall 1: Inadequate Heatsinking Leading to Thermal Shutdown. 
    *

Alternative Part Number

  • VND5E025AK-E --: High-side driver in the same power-switch class with comparable current rating and protection features, from a different series and manufacturer.
  • MC33984 --: Automotive high-side switch with similar load-driving capability and integrated diagnostics, offering a distinct alternative series.
  • TLE75008-ESD --: Infineon high-side switch family member with comparable voltage/current handling, usable as a functional substitute though from a different product line.
  • BTS50085-1TMB --: Infineon PROFET high-side switch with similar load-driving capability and integrated protection, using a different naming series.
  • TPS1H100-Q1 --: Automotive-qualified high-side power switch with comparable RDS(on) and protection functions, providing a distinct series as a cross-reference option.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips