FDB8030L
Fairchild Semiconductor
If the DC536 will be operating above 7Amps, replace Q1 with a suitable DD package MOSFET such as the FDB8030L
Design DocumentAnalog
DC536 Quick Start Guide for LTC4211 Hot Swap Controller
Quick start guide for the DC536 demonstration circuit featuring the LTC4211 hot swap controller. Supports 2.5V to 16.5V operation with current limits from 7A up to 20A.
Overview
The DC536 demonstration circuit is designed to evaluate the LTC4211 low voltage hot swap controller. Operating within a range of 2.5V to 16.5V, the board is factory-configured for 5V systems with a 7A current limit using a Vishay Siliconix Si4410 MOSFET and a 7mΩ sense resistor. It includes provision for higher power operation up to 20A by utilizing an FDB8030L MOSFET and a 2.5mΩ sense resistor. The guide provides technical specifications for under voltage lockout, gate pull-up/down currents, and timing delays. It outlines procedures for evaluating turn-on and turn-off transients, steady-state conditions, and circuit breaker functionality under various load conditions.
Use Cases
- Evaluating the LTC4211 hot swap controller performance
- Testing power supply turn-on and turn-off transients
- Prototyping current-limited power distribution for 2.5V to 16.5V rails
- Designing hot-swappable systems with up to 20A load requirements
Topics
LTC4211
DC536
Hot Swap Controller
Si4410
FDB8030L
Current Limit
Under Voltage Lockout
Soft Start
Circuit Breaker
Referenced Parts
LTC4211
Linear Technology
Hot Swap controller with multifunction current control featuring the LTC4211
Si4410
Vishay Siliconix
The DC536 as supplied by the factory is populated with an Si4410 MOSFET in an SO-8 package
20A
MPS
as the FDB8030L suitable for up to 20Amps. There
| FDB8030L | Fairchild Semiconductor | If the DC536 will be operating above 7Amps, replace Q1 with a suitable DD package MOSFET such as the FDB8030L |
| LTC4211 | Linear Technology | Hot Swap controller with multifunction current control featuring the LTC4211 |
| Si4410 | Vishay Siliconix | The DC536 as supplied by the factory is populated with an Si4410 MOSFET in an SO-8 package |
| 20A | MPS | as the FDB8030L suitable for up to 20Amps. There |