|
|
Hot-swap controller with onboard ADC and I²C
2 November 2005, Power Electronics / Power Management
Linear Technology's LTC4261, a negative high voltage hot-swap controller, features an onboard 10-bit ADC and I²C compatible interface, allowing sophisticated power monitoring by measuring card voltages and currents as well as recording past and present fault conditions.
The LTC4261 complements the LTC4260, a positive 48 V hot-swap controller. Information in the ADC's registers can be queried via the I²C bus and then used to determine if a card is actually using its allocated power, or operating abnormally. An irregular card can be flagged for service even before it fails.
This advanced power monitoring, combined with a wide input voltage range of -12 V to -100 V and hot-swap capabilities, make the LTC4261 ideally suited for high availability telecom/network equipment, such as AdvancedTCA systems.
The LTC4261 is also designed to turn the supply voltage on and off in a controlled manner. The active current limiting results in a controlled rise in voltage across the card capacitance and protects the backplane supply from voltage drops. The inrush and overcurrent limits, as well as the undervoltage/overvoltage thresholds and hysteresis are independently adjustable. The controller disconnects the load if it remains in current limit beyond the time-out delay and can be configured to latch off or auto-retry following the event.
The LTC4261 is available in 28-lead SSOP and 24-lead 4 x 5 mm QFN packages. |
|
|
|
| Share: |
 |
Via email client |
 |
 |
 |
 |
print |
|
|
|
|
|
Further reading:
- Better thermal management enabled by advances in semiconductor packaging
26 June 2019, TRX Electronics, Power Electronics / Power Management
Beyond the realm of traditional thermal management solutions, the latest IC packaging technologies are making a significant contribution to satisfying the exacting thermal demands of modern electronic designs.
- Solar-powered bakery developed at UJ
26 June 2019, Power Electronics / Power Management
When used as a tool for community development, the Solar Bread Box becomes a self-sustaining, economy stimulating, job creating and skills development platform.
- Prolonging the life of UPS batteries
26 June 2019, Forbatt SA, Power Electronics / Power Management
The battery is one of the most important parts of an uninterrupted power supply (UPS) system, and is directly related to the reliability of the entire UPS system. Even the most advanced UPS system is ...
- eSPI-to-LPC bridge
26 June 2019, Avnet South Africa, Computer/Embedded Technology
Microchip Technology’s new ECE1200 bridge allows developers to implement the eSPI standard in boards with legacy LPC connectors and peripherals.
Product longevity is critical in industrial computing ...
- Passive filter design for an ultra-low noise buck regulator
26 June 2019, NuVision Electronics, Power Electronics / Power Management
Switched-mode power supplies (SMPS) have the advantage of high efficiency compared to traditional low-dropout (LDO) regulators. Due to its switching nature, an SMPS emits noise at its switching frequency ...
- How to design AC-DC power supplies for long life
26 June 2019, Accutronics, Power Electronics / Power Management
There are many things that impact the life of a power supply, overstressed components being the main one. All components have a life that is affected by temperature; some components are more strongly ...
- Designing certified power solutions for LED lighting
26 June 2019, Avnet South Africa, Power Electronics / Power Management
LED lighting has become the product of choice in all types of environments, from domestic to industrial through to specialist areas such as stage lighting. The combination of efficiency in terms of lumens ...
- Automotive smart hub ICs
26 June 2019, Avnet South Africa, Telecoms, Datacoms, Wireless, IoT
Microchip Technology has added new single-port USB smart hub ICs to its family of USB automotive products. The USB4912 and the USB4712 can be used to add a single port under the radio, in the centre console ...
- Three-phase 5 kW power supply
26 June 2019, Vepac Electronics, Power Electronics / Power Management
XP Power’s HPT5K0 series is a range of high power density, high efficiency, resonant zero-voltage switching (ZVS) 5 kW AC-DC power supplies with both ITE/industrial and medical agency approvals that feature ...
- DC-DC converters for 3 to 20 Watts
26 June 2019, Conical Technologies, Power Electronics / Power Management
The new TRI line of DC-DC converters from Traco Power comprises a set of high-isolation, regulated parts which come in a compact DIP-24 package for the 3-10 W units or 5,08 x 2,54 cm for the 15-20 W packages. ...
- Automotive switching regulator
26 June 2019, EBV Electrolink, Power Electronics / Power Management
The STMicroelectronics A7987 automotive switching regulator has a wide input voltage range that allows use in trucks and buses, and an adjustable output voltage that ensures flexibility and stable performance ...
- Low-profile U-channel PSU
26 June 2019, Vepac Electronics, Power Electronics / Power Management
XP Power has launched a new range of 180 Watt U-channel AC-DC power supplies (PSU) that are intended for space-constrained medical (BF), industrial and IT applications. The low-profile devices are just ...
|
|
