Imagens apenas para referência
LTC1871HMS
+Lista de MateriaisIC REG CTRLR MULT TOP 10MSOP
-
FabricanteAnalog Devices Inc.
-
Peça do Fabricante #LTC1871HMS
-
Em Estoque4873
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| Part Status | Obsolete |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Boost, Flyback, SEPIC |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 2.5V ~ 36V |
| Frequency - Switching | 50kHz ~ 1MHz |
| Duty Cycle (Max) | 92% |
| Synchronous Rectifier | No |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control |
| Operating Temperature | -40°C ~ 150°C |
| Mounting Type | Surface Mount |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-MSOP |
| Base Product Number | LTC1871 |
Visão Geral
Description
Key features include adjustable output voltage, low quiescent current, and built-in protection mechanisms such as overcurrent and thermal shutdown. The LTC1871HMS employs a constant frequency PWM control scheme, enabling stable operation across various loads and minimizing output ripple. Its small footprint and high efficiency make it suitable for battery-powered applications, helping to extend operational time between charges. The IC is available in a compact MSOP package, facilitating easier integration into space-constrained designs. Overall, the LTC1871HMS is an ideal choice for engineers seeking reliable and efficient power management solutions.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 2.5V to 15V, accommodating a variety of power sources.
2. Output Voltage Range: Adjustable output voltage from 2.5V to 30V, suitable for multiple applications.
3. High Efficiency: Typically achieves efficiencies exceeding 90%, reducing thermal management concerns.
4. Built-in Switch: Integrates a high-side power switch, minimizing external component count.
5. Adjustable Frequency: Offers adjustable switching frequency up to 1 MHz, allowing for design flexibility.
6. Current Limit: Features a programmable current limit, enhancing protection against overload conditions.
7. Soft Start: Includes a soft-start feature to minimize inrush current during startup.
8. Thermal Protection: Equipped with thermal shutdown to prevent overheating.
9. Compact Package: Available in a 16-lead MSOP package, ideal for space-constrained applications.
These features make the LTC1871HMS an excellent choice for battery-powered devices, portable electronics, and other demanding applications.
Pinout
1. Vin: Input voltage supply.
2. GND: Ground reference.
3. VFB: Feedback voltage input for error amplifier.
4. ISEN+ / ISEN-: Current sense inputs for overcurrent protection.
5. SW: Switch node for the power stage.
6. COMP: Compensation network connection for loop compensation.
7. RAMP: Connection for the ramp signal in the PWM control.
8. RT: Timing resistor connection for frequency setting.
9. SS: Soft-start pin for controlling the startup time.
10. PWM: Output for driving the gate of the external switch.
Additional pins include those for enabling/disabling the device, frequency setting, and connecting to external components for proper operation. The LTC1871HMS is designed for efficiency and high-frequency switching applications.
Manufacturer
Application
1. Power Management for Battery-Powered Devices: Efficiently converts battery voltage to lower levels for microcontrollers and sensors.
2. Telecommunications: Supplies stable power to communication devices and network equipment.
3. Consumer Electronics: Powers devices like laptops, tablets, and smartphones.
4. Industrial Equipment: Provides voltage regulation in automation and control systems.
5. LED Driving: Powers LED arrays with adjustable current and voltage regulation.
Its versatility and efficiency make it suitable for a wide range of applications requiring compact and reliable power solutions.