BTS5030-1EJA Alternatives, Specification, Pinout, Features and Application
07 April 2024
Ⅲ. Protection function of BTS5030-1EJA
Ⅴ. How does BTS5030-1EJA realize real-time monitoring of the working status of the circuit?
Ⅵ. BTS5030-1EJA pinout and function
Ⅶ. What are the application cases of BTS5030-1EJA in automotive electric system?
BTS5030-1EJA is a single-channel intelligent high-voltage side power switch with a resistance value of 30mΩ. It is embedded in the PG-DSO-8-43 EP, exposed Pad package and provides protection functions and diagnostic capabilities. The power transistor consists of an N-channel vertical power MOSFET with a charge pump, which gives it excellent performance. In addition, the BTS5030-1EJA power switch IC integrates Smart6 technology, showing its technological advancement and reliability. This power switch is specifically designed to drive lamps up to 2*P21W, as well as LEDs suitable for harsh automotive environments. Not only that, it is suitable for resistive, inductive and capacitive loads and can replace electromechanical relays, fuses and discrete circuits, especially for high inrush current loads such as lamps. These features enable the BTS5030-1EJA to meet diverse power management needs.
Alternative models:
• ISP772T
• The manufacturer of BTS5030-1EJA is Infineon Technologies.
• Its power consumption is 1.7W.
• It operates from a supply voltage of 5V to 28V.
• Its operating temperature is -40°C to 150°C.
• Its installation method is SMD or SMT.
• BTS5030-1EJA is available in SOIC-8 package and tape or reel (TR) packaging.
• The BTS5030-1EJA has a length of 4.9 mm, a width of 3.9 mm, and a height of 1.45 mm.
• BTS5030-1EJA has 8 pins, 1 input channel and 1 output channel.
1. Overload protection
In case of overload, such as high inrush of cold lamp filament, or short circuit to ground, the BTS5030-1EJA offers several protection mechanisms.
2. Loss of ground protection
If the module ground is lost but the load maintains its connection to ground, the device safeguards itself by automatically switching OFF (if it was in the ON state previously) or staying OFF, irrespective of the voltage present on the IN pin. If the device ground is lost, it is advisable to employ input resistors between the microcontroller and the BTS5030-1EJA to guarantee the OFF state of the channel. In the event of a loss of module or device ground, a labeled current as IOUT(GND) may escape from the DMOS. The subsequent figure schematically illustrates this scenario. The ZGND component can be configured as either a resistor or a diode.
3. Reverse polarity prevention
In case of reverse polarity, the intrinsic body diodes of the power DMOS causes power dissipation. The current in this intrinsic body diode is limited by the load itself. Additionally, the current into the ground path and the logic pins has to be limited to the maximum current. The following figure shows a typical application. RGND resistor is used to limit the current in the Zener protection of the device. Resistors RDEN and RIN are used to limit the current in the logic of the device and in the ESD protection stage. RSENSE is used to limit the current in the sense transistor which behaves as a diode. The recommended value for RDEN = RIN = RSENSE = 4.7 kΩ. ZGND can be either a 150Ω resistor or Schottky diode with 1 kΩ resistor in parallel. In case the overvoltage is not considered in the application, RGND can be replaced by a Schottky diode and 1kΩ resistor in parallel. Optionally a capacitor in parallel is recommended for EMC reasons. During reverse polarity, no protection functions are available.
4. Overvoltage protection
There is an integrated clamp mechanism for overvoltage protection (ZD(AZ)). To guarantee this mechanism operates properly in the application, the current in the Zener diode has to be limited by a ground resistor. The following figure shows a typical application to withstand overvoltage issues. In case of supply voltage higher than VS(AZ), the power transistor switches ON and the voltage across the logic section is clamped. As a result, the internal ground potential rises to VS - VS(AZ). Due to the ESD Zener diodes, the potential at pin IN and DEN rises almost to that potential, depending on the impedance of the connected circuitry. In the case the device was ON, prior to overvoltage, the BTS5030-1EJA remains ON. In the case the BTS5030 -1EJA was OFF, prior to overvoltage, the power transistor can be activated. In the case the supply voltage is in above VBAT(SC) and below VDS(AZ), the output transistor is still operational and follows the input. If the channel is in the ON state, parameters are no longer guaranteed and lifetime is reduced compared to the nominal supply voltage range. This especially impacts the short circuit robustness, as well as the maximum energy EAS capability. ZGND as a resistor (150Ω) will offer superior results compared to a diode and resistor (1 kΩ).
5. Undervoltage protection
Between VS(UV) and VS(OP), the undervoltage mechanism is triggered. VS(OP) represents the minimum voltage where the switching ON and OFF can take place. VS(UV) represents the minimum voltage the switch can hold ON. If the supply voltage is below the undervoltage mechanism VS(UV), the device is OFF (turns OFF). As soon as the supply voltage is above the undervoltage mechanism VS(OP), then the device can be switched ON. When the switch is ON, protection functions are operational. Nevertheless, the diagnosis is not guaranteed until VS is in the VNOM range. The following sketches the undervoltage mechanism.
• AEC qualified
• One channel device
• Very low stand-by current
• Green product (RoHS compliant)
• Enhanced electromagnetic compatibility
• ESD Safety Protection
• 3.3 V and 5 V compatible logic inputs
• Logic ground isolated from load ground
• DMOS has extremely low leakage current in the off state
The BTS5030-1EJA realizes real-time monitoring of the circuit's operating status mainly through internal circuit design and functional characteristics.
1. Temperature monitoring: Since automotive environments can generate high temperatures, the BTS5030-1EJA may contain temperature sensors to monitor the temperature of the power switch IC and its surroundings. This helps to detect overheating conditions in time and take appropriate protective measures, such as lowering the operating current or shutting down the power supply, to prevent equipment damage.
2. Logic control and feedback mechanism: The BTS5030-1EJA features a logic control capability enabling it to promptly assess and adapt to circuit parameters in real-time. Upon detecting anomalies like elevated temperature, current, or voltage, the power switch IC initiates the feedback mechanism instantly, ensuring circuit safety through actions such as power cutoff, output level adjustment, or issuing warning signals.
3. Voltage and current monitoring: The BTS5030-1EJA may have integrated voltage and current sensors inside, which are capable of monitoring the voltage and current values in the circuit in real time. By comparing with the preset safety thresholds, the power switch IC can determine whether the circuit is in the normal operating range.
The BTS5030-1EJA has a total of 8 pins and its pin diagram is as follows:
Pin 1 (GND): Ground connection
Pin 2 (IN): Input signal for channel activation
Pin 3 (DEN): Digital signal to enable or disable the diagnosis of the device
Pin 4 (IS): Sense current of the selected channel
Pin 5 (NC): No internal connection to the chip
Pin 6,7,8 (OUT): Protected high side power output channel
1. Battery management system: In electric vehicles, BTS5030-1EJA can be used for charging and discharging control in the battery management system to ensure the safety and stability of battery charging and discharging, prolonging the service life of the battery and improving the range of electric vehicles.
2. Electric auxiliary equipment control: The BTS5030-1EJA, apart from serving as a battery management system, can also function as a controller for various electric auxiliary components in a vehicle, encompassing the electric power steering system, electric air conditioning compressor, and electric water pumps, among others. This enables precise regulation of these devices, thereby enhancing both the overall performance of the car and its energy efficiency.
3. Energy recovery system: The BTS5030-1EJA serves to regulate the energy recovery system, transforming the kinetic energy produced during vehicle braking into electrical energy for storage or reuse. This enhances car energy efficiency, diminishes energy usage, and decreases dependence on conventional braking systems.
4. Electric motor control: BTS5030-1EJA can be used to control the start-stop, acceleration, deceleration and other operations of the car's electric motor. By effectively controlling the current and voltage of the electric motor, it can realize more efficient energy conversion and improve the power performance and energy saving of the car.
Frequently Asked Questions
1. What is the replacement and equivalent of BTS5030-1EJA?
You can replace the BTS5030-1EJA with BTS4175SGA, BTS50301EJAXUMA1, ISP772T, ITS4100SSJNXUMA1 or NCV8460ADR2G.
2. What is the main function of BTS5030-1EJA?
The main function of BTS5030-1EJA is to control the flow of electrical current to a load, typically in automotive systems such as lighting, heating, or motors.
3. What diagnostic feedback does BTS5030-1EJA provide?
BTS5030-1EJA typically provides diagnostic feedback such as short circuit detection and thermal shutdown indication, allowing for easy monitoring of its status.
