Adinath Electronics

The inbuilt 70V/300mΩ MOSFET in the BP1808 DC/DC constant current LED driver is intended to operate across a broad input-voltage range of 3V to 60V. It is possible to setup the BP1808 with a Buck, Boost, or BuckBoost topology. An external current sensing resistor programs the LED current using a 200 mV current sense reference, minimizing power loss. By using a DIM pin, the BP1808 supports both analog and PWM dimming.

The IR2113STRPBF is a high-power version of the gate drivers you’ve looked at previously. While it shares the same "Half-Bridge" architecture, it is a much more robust "Big Brother" to the IR2101/04 series, offering significantly higher current drive capability and a wider logic supply range.

The IR2113STRPBF is a high-power version of the gate drivers you’ve looked at previously. While it shares the same "Half-Bridge" architecture, it is a much more robust "Big Brother" to the IR2101/04 series, offering significantly higher current drive capability and a wider logic supply range.

It is an independent high- and low-side driver, meaning the two channels are controlled separately and do not have built-in deadtime logic.

Core Specifications Key Features

• High Output Drive: Unlike the IR2101 (~200mA), the IR2113 provides 2.5A. This allows it to drive much larger MOSFETs and IGBTs (higher gate capacitance) at much higher switching frequencies without overheating.

• Separate Logic Supply ($V_{DD}$): It has a dedicated pin for logic power. This allows you to run your microcontroller at 3.3V while the gate drive power ($V_{CC}$) remains at 15V, providing better noise immunity.

• Matched Propagation Delay: Delays are matched to within 20ns, which is critical for high-frequency PWM applications like Class D amplifiers or high-speed motor controllers.

• Shutdown Pin (SD): Includes a CMOS Schmitt-triggered shutdown input for cycle-by-cycle protection.

With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a 1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.

STW28NM50N is a robust N-channel power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) from STMicroelectronics, designed to deliver efficient high-voltage switching and excellent ruggedness in a wide range of power electronics applications. It belongs to ST’s MDmesh™ II family — a technology that combines advanced vertical silicon structuring with a refined strip layout to achieve low conduction losses and reduced gate charge, making the device suitable for high-efficiency converter designs.

⚙️ Key Electrical Specifications

• Drain-to-Source Voltage (V_DSS): 500 V — for use in circuits with significant voltage stress (offline power supplies, inverter stages, etc.).

• Continuous Drain Current (I_D): 21 A (at case temperature) — solid current handling for medium-power designs.

• On-State Resistance (R_DS(on)): ~0.158 Ω @ V_GS=10 V — helps reduce conduction losses.

• Maximum Power Dissipation: ~150 W (case) — supports sustained operation with appropriate heat sinking.

• Gate Charge (Q_g): ~50 nC @ V_GS=10 V — moderate gate charge that balances driver requirements and switching speed.

• Input Capacitance (C_iss): ~1735 pF @ 25 V — influences dynamic switching behavior.

• Gate-Source Voltage (V_GS): ±25 V max — safe gate drive limits.

• Threshold Voltage (V_GS(th)): ~4 V (typ.) — defines the minimum voltage at which conduction begins.

The part is typically supplied in a TO-247-3 through-hole package, which simplifies heatsink mounting and thermal management in high-power circuits.

🔧 Construction & Technology

STW28NM50N is built using second-generation MDmesh™ II technology, which delivers:

• Low on-resistance and low gate charge, enhancing efficiency in both conduction and switching modes.

• Low input capacitance and low gate input resistance, which improve switching performance and reduce driver energy requirements.

• 100% avalanche testing, meaning the device is rugged and capable of withstanding inductive voltage transients typical in power conversion.

These traits make the MOSFET suitable for efficient and reliable operation in high-efficiency converters.

Established in the year 2016 at Mumbai Maharashtra we Adinath Electronics are a Sole Proprietorship based firm engaged as the foremost Wholesale Supplier and Importer of SMD Resistors PCB Connector etc Our products are high in demand due to their premium quality and affordable prices Furthermore we ensure to timely deliver these products to our clients through this we have gained a huge clients base in the market we are importing our products from Taiwan Singapore and Malaysia

Current half-Hdrivers are quadruple-high in the L293 and L293D devices. The L293 is made to offer bidirectional drivecurrents of up to 1A at voltages between 4.5 and 36 volts.The L293 is not intended to deliver bidirectional driving currents of more than 600 mA at voltages between 4.5 and 36 volts.Both devices are intended to drive inductive loads in positive supply applications, including relays, solenoids, DC and bipolar stepping motors, among others.

A driving motor is managed by the L9110S, a small, two-channel, push-pull power amplifier ASIC (application-specific integrated circuit). It is intended to combine discrete circuits into a single integrated circuit (IC), which can lower the cost and quantity of peripheral devices while increasing the overall machine dependability. 

The S1D13517 is a color LCD graphics controller which uses an external SDRAM display buffer. The S1D13517 supports an 8/16-bit indirect host interface while providing high performance bandwidth to external SDRAM, allowing for fast screen updates. 

The MAX7219/MAX7221 are small, serial input/output common-cathode display drivers that connect microprocessors (Ps) to bar-graph displays, 64 individual LED displays, or 7-segment numeric LED displays with up to 8 digits. A BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that saves every digit are all included on the device. To set the segment current for all LEDs, just one external resistor is needed. The MAX7221 incorporates slewrate-limited segment drivers to lower EMI and is compatible with SPITM, QSPITM, and MICROWIRETM.

The L298 is a 15-lead Multiwatt and PowerSO20 integrated monolithic circuit. It's a high voltage, high current twin full-bridge driver that can receive conventional TTL logic levels and drive inductive loads including relays, solenoids, DC and stepping motors. There are two enable inputs to enable or disable the device independently of the input signals.The emitters of each bridge's bottom transistors are linked together, and the matching external terminal may be used to connect an external sensing resistor. A second supply input is supplied so that the logic may operate at a lower voltage.

A monolithic, 16-bit shift register with low voltage and current consumption called the STP16CP05 was created for LED panel displays. A 16-bit serial-in, parallel-out shift register in the STP16CP05 supplies data to a 16-bit D-type storage register. To drive the LEDs in the output stage, sixteen controlled current sources deliver continuous current ranging from 5 mA to 100 mA. The setup time for the output current is 40 ns (typical), which enhances system performance. By adjusting the output current of the STP16CP05 with an external resistor, the LEDs' brightness may be managed. 

In applications controlled by microcomputers, the L297 Stepper Motor Controller IC creates four phase drive signals for two phase bipolar and four phase unipolar step motors. Half-step, normal, and wawe drive modes are available for the motor, and onchip PWM chopper circuits provide switch-mode control of the current in the windings. The workload on the microprocessor and the programmer is significantly reduced because the phases are created internally. The L297, which is available in DIP20 and SO20 packages, may be utilised with discrete transistors, darlingtons, or monolithic bridge drives like the L298N or L293E.