LTC1643A PCI-Bus Hot Swap Controller

The LTC®1643A is a Hot Swap™ controller that allows a board to be safely inserted and removed from a live PCI-Bus slot. Two external N-channel transistors control the 3.3V and 5V supplies while on-chip switches control the –12V and 12V supplies. All supply voltages can be ramped up at a programmable rate. An electronic circuit breaker protects all four supplies against overcurrent faults. The foldback current limit feature limits current spikes and power dissipation when shorts occur and allows boards with large capacitances to be powered up without tripping the circuit breaker. The PWRGD output indicates when all of the supply voltages are within tolerance and the FAULT output indicates an overcurrent condition. The ON(LTC1643AH)/ON (LTC1643AL/ LTC1643AL-1) pin is used to cycle the board power or reset the circuit breaker. The LTC1643AL-1 has the ±12V power good comparators disabled.

The LTC1643A is available in a 16-pin narrow SSOP package

产品特点 Features

Allows Safe Board Insertion and Removal from a Live PCI Slot
Works on either a Motherboard (LTC1643AH) or CompactPCI™ Card (LTC1643AL/LTC1643AL-1)
Controls –12V, 3.3V, 5V, 12V Supplies
Programmable Foldback Current Limit with Circuit Breaker
User-Programmable Supply Voltage Power-Up Rate
High Side Drive for External N-Channels MOSFETs
–12V and 12V On-Chip Switches
Fault and Power-Good Outputs
Available in a Narrow 16-Lead SSOP Package

参数

应用

PCI-Based Servers
CompactPCI Compliant Boards

典型应用图

LTC1643A 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1643AHCGN	SSOP	16	C	$5.00	$4.25
LTC1643AHCGN#PBF	SSOP	16	C	$5.00	$4.25
LTC1643AHCGN#TR	SSOP	16	C		$4.31
LTC1643AHCGN#TRPBF	SSOP	16	C		$4.31
LTC1643AHIGN	SSOP	16	I	$5.70	$4.85
LTC1643AHIGN#PBF	SSOP	16	I	$5.70	$4.85
LTC1643AHIGN#TR	SSOP	16	I		$4.91
LTC1643AHIGN#TRPBF	SSOP	16	I		$4.91
LTC1643AL-1CGN	SSOP	16	C	$5.00	$4.25
LTC1643AL-1CGN#PBF	SSOP	16	C	$5.00	$4.25
LTC1643AL-1CGN#TR	SSOP	16	C		$4.31
LTC1643AL-1CGN#TRPBF	SSOP	16	C		$4.31
LTC1643AL-1IGN	SSOP	16	I	$5.70	$4.85
LTC1643AL-1IGN#PBF	SSOP	16	I	$5.70	$4.85
LTC1643AL-1IGN#TR	SSOP	16	I		$4.91
LTC1643AL-1IGN#TRPBF	SSOP	16	I		$4.91
LTC1643ALCGN	SSOP	16	C	$5.00	$4.25
LTC1643ALCGN#PBF	SSOP	16	C	$5.00	$4.25
LTC1643ALCGN#TR	SSOP	16	C		$4.31
LTC1643ALCGN#TRPBF	SSOP	16	C		$4.31
LTC1643ALIGN	SSOP	16	I	$5.70	$4.85
LTC1643ALIGN#PBF	SSOP	16	I	$5.70	$4.85
LTC1643ALIGN#TR	SSOP	16	I		$4.91
LTC1643ALIGN#TRPBF	SSOP	16	I		$4.91

LTC1643A 数据手册及相关资料下载

数据手册(英文) : LTC1643A - PCI-Bus Hot Swap Controller.PDF
可靠性数据 : R318 Reliability Data .PDF
产品选型卡 : High Voltage Hot Swap Controllers.PDF