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TL3845BDR-8
IC REG CTRLR MULT TOPOLOGY 8SOIC
- Fabricante
- Mfr. Parte #TL3845BDR-8
- Paquete SOIC (D)-8
- Hoja de datos TL3845BDR-8 DataSheet
- En stock6138
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Especificaciones
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Boost, Flyback, Forward Converter |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 7.6V ~ 30V |
| Frequency-Switching | 100kHz |
| DutyCycle(Max) | 48% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Frequency Control |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Descripción general
Description
The device integrates essential protection features such as overcurrent protection and undervoltage lockout, which safeguard the system against potential faults. It operates at a fixed frequency, optimizing it for noise-sensitive applications. The TL3845BDR-8's compact form factor and low power consumption make it ideal for use in space-constrained environments.
Overall, the TL3845BDR-8 is a reliable solution for designers looking to implement efficient and robust power management systems in electronic devices.
Features
1. Current-Mode Control: Facilitates simple loop compensation and improved transient response.
2. Wide Supply Voltage Range: Operates across various input voltages, enhancing versatility in different applications.
3. Low Start-up Current: Minimizes power consumption during start-up, improving overall efficiency.
4. Oscillator for Precise Frequency Control: Incorporates a trimmed oscillator for accurate control of the switching frequency.
5. Undervoltage Lockout (UVLO): Offers two levels of UVLO thresholds to enhance fault protection.
6. High-Current Totem-Pole Output: Provides rapid switching of power MOSFETs.
7. Short-Circuit Protection: Features cycle-by-cycle current limiting for enhanced safety and reliability.
8. Soft Start Capability: Provides controlled ramp-up of output voltage to prevent inrush current at start-up.
The TL3845BDR-8 is commonly used in power supply design, offering reliable performance for efficient power conversion. Its compact size in a surface-mount package also aids in high-density designs.
Package
Pinout
1. Compensation (COMP): Error amplifier output. Used for loop compensation.
2. Voltage Feedback (VFB): Inverting input to the error amplifier. Used for voltage feedback.
3. Current Sense (CS): Monitors the switch current for current mode control and overcurrent protection.
4. RT/CT: Timing resistor and capacitor input for setting oscillator frequency.
5. Ground (GND): Ground reference for the IC.
6. Output (OUT): Provides the drive signal for the external power MOSFET.
7. VCC: Supply voltage input.
8. VREF: Reference voltage output. Provides a stable reference for internal circuits and can be used externally.
The TL3845BDR-8 is commonly used for PWM control in applications requiring high efficiency and reliability.
Manufacturer
Application
Equivalent
1. UC3845 - Texas Instruments
2. NCP3845 - ON Semiconductor
3. KA3845 - Fairchild Semiconductor (now part of ON Semiconductor)
4. MC3845 - STMicroelectronics
5. SG3845 - Microsemi
These alternatives offer similar functionality and are used in PWM control applications. Always verify specifications and compatibility with your application requirements.
Envío
Métodos de envíoNosotros
ofrecer servicios de envío globales a través de DHL, FedEx, TNT, UPS, o cualquier otro expediente de su elección.
Referencia de tarifas de envío (DHL/FedEx):
DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.
FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.
Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.
Pagos
Payment Methods
El plazo de pago es 100% prepagado.
Actualmente, solo aceptamos los siguientes métodos de pago:
1. de PayPal
2. Tarjeta de crédito/débito
3. Transferencia bancaria
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