Features • Wide operating range: -9V to -80V • In-rush current limit for safe board insertion into live power sources • Programmable maximum power dissipation in the external pass device • Adjustable current limit • Circuit breaker function for severe over-current events • Adjustable under-voltage lockout (UVLO) and hysteresis • Adjustable over-voltage lockout (OVLO) and hysteresis • Initial insertion timer allows ringing and transients to subside after system connection • Programmable fault timer avoids nuisance trips • Active high open drain POWER GOOD output • Available in latched fault and automatic restart versions Description The LM5067 negative hot swap controller provides intelligent control of the power supply connections during insertion and removal of circuit cards from a live system backplane or other “hot” power sources. The LM5067 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). In addition, the LM5067 provides circuit protection by monitoring for over-current and over-voltage conditions. The POWER GOOD output indicates when the output voltage is close to the input voltage. The input under-voltage and over-voltage lockout levels and hysteresis are programmable, as well as the fault detection time. The LM5067-1 latches off after a fault detection, while the LM5067-2 automatically attempts restarts at a fixed duty cycle. The LM5067 is available in a 10 pin MSOP package and a 14 pin SOIC package. Applications • Server Backplane Systems • In-Rush Current Limiting • Solid State Circuit Breaker • Transient Voltage Protector • Solid State Relay • Under-voltage Lock-out • Power Good Detector/Indicator

Also Recommended LM25061▲ Output Monitor/Adjustable PGD, +2.9V To +17V Version LM25069▲ +2.9V To +17V Version LM5069▲ Positive Hot Swap With Current AND Power Limiting MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance *click for larger image

Datasheet

Title		Size	Date	Other Language
	LM5067 Negative Hot Swap / Inrush Current Controller with Power Limiting	756 Kbytes	9-Sep-09

Featured Application Notes

Title		Size	Date	Other Language
	AN-1723: Application Note 1723 LM5067 Evaluation Board	747 Kbytes	30-Sep-07

More Application Notes

Title		Size	Date	Other Language
	AN-1326: Application Note 1326 LM5068 Evaluation Board	155 Kbytes	15-Apr-04
	AN-2000: Application Note 2000 LM5060EVAL Evaluation Board	1654 Kbytes	3-Nov-09
	AN-1522: Application Note 1522 LM5069 Evaluation Board	1436 Kbytes	7-Mar-08	中文
	AN-1304: Application Note 1304 LM5068 -48V Hot Swap Controller	61 Kbytes	26-Jan-04	中文

Design Tools

Title	Size	Date
LM5067 Quick Start Calculator	566 Kbytes	25-Aug-2009
Article - Power Limits Make Hot Swapping More Robust
Article - Hot-Swap Switch Provides Easy Thermal Protection

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM5067MM-1	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5067MM-2	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5067MMX-1	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5067MMX-2	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5067MW-1	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5067MWX-1	ABCD150XV2	0	3601	0	0	1155496	4	327875145

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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