Hình ảnh chỉ để tham khảo
LM3881MM
+BOMANALOG CIRCUIT, 1 FUNC, PDSO8
-
Nhà sản xuấtBán dẫn quốc gia
-
Ông. Phần #LM3881MM
-
Bảng dữ liệu LM3881MM DataSheet
-
Gói VSSOP-8
-
Có sẵn4641
365 Đảm bảo chất lượng ngày
7*24 giờ dịch vụ quarantee
90-Bảo hành sau bán hàng ngày
Bảo hành sản phẩm chính xác
Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Bulk |
| ProductStatus | Active |
| Applications | Power Supply Sequencer |
| Voltage-Supply | 2.7V ~ 5.5V |
| Current-Supply | 80 µA |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
Tổng quan
Description
Key features of the LM3881 include:
1. Sequence Control: It provides a three-output sequence control, enabling designers to define the order and timing for power-up and power-down sequences.
2. Low Supply Current: The device operates with a low quiescent current, making it suitable for battery-powered applications.
3. Wide Supply Voltage Range: It supports a broad input voltage range, enhancing its versatility across various applications.
4. Adjustable Delay: The timing for each output can be adjusted using external capacitors, allowing for flexible sequencing tailored to specific system requirements.
Overall, the LM3881MM is ideal for applications requiring reliable power sequencing, such as telecommunications, networking, and computer systems.
Equivalent
Features
1. Sequencing Capability: It can sequence up to three different voltage rails, ensuring that they power up and down in a specific order, which is critical for many multi-voltage systems.
2. Input Voltage Range: Operates within a wide input voltage range, typically from 2.7V to 5.5V, making it suitable for various applications.
3. Adjustable Timing: Features adjustable delay times between the sequencing of each rail, allowing for customized power-up sequences based on system requirements.
4. Compact Package: Available in a compact MSOP-8 package, making it suitable for space-constrained applications.
5. Low Power Consumption: Designed for low power consumption, contributing to energy efficiency in the overall system.
6. Simple Design: Requires minimal external components, simplifying the design process and reducing overall system cost.
These features make the LM3881MM an effective solution for orderly power management in complex electronic systems.
Pinout
1. EN (Enable): This pin is used to enable the device.
2. GND: Ground reference for the device.
3. C_T (Timing Capacitor): Connect a capacitor here to set the delay timing for sequencing.
4. VDD: Supply voltage pin for the device.
5. OUT1: First output, used to control the first voltage rail.
6. OUT2: Second output, used to control the second voltage rail.
7. OUT3: Third output, used to control the third voltage rail.
8. RESET: Active-low reset input.
The LM3881MM is designed to ensure proper sequencing of three power rails, preventing issues like inrush current and voltage conflicts, which are critical in complex systems with multiple power domains.