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Technical Specifications
Parameters and characteristics for this part
| Specification | LM5068MM-2/NOPB |
|---|---|
| Applications | -48 V |
| Current - Supply | 820 µA |
| Features | Auto Retry, Turn On Voltage |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Operating Temperature [Max] | 105 ░C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-MSOP, 8-TSSOP |
| Package / Case | 3 mm |
| Package / Case [custom] | 0.118 in |
| Programmable Features | Current Limit, Circuit Breaker, UVLO, OVP, Fault Timeout |
| Type | Hot Swap Controller |
| Voltage - Supply [Max] | -10 V |
| Voltage - Supply [Min] | -90 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.55 | |
| 10 | $ 4.09 | |||
| 25 | $ 3.86 | |||
| 100 | $ 3.35 | |||
| 250 | $ 3.18 | |||
| 500 | $ 2.85 | |||
| Digi-Reel® | 1 | $ 4.55 | ||
| 10 | $ 4.09 | |||
| 25 | $ 3.86 | |||
| 100 | $ 3.35 | |||
| 250 | $ 3.18 | |||
| 500 | $ 2.85 | |||
| Tape & Reel (TR) | 1000 | $ 2.40 | ||
| 2000 | $ 2.28 | |||
| Texas Instruments | SMALL T&R | 1 | $ 3.43 | |
| 100 | $ 3.01 | |||
| 250 | $ 2.11 | |||
| 1000 | $ 1.70 | |||
Description
General part information
LM5068 Series
The LM5068 hot-swap controller provides intelligent control of power supply connections during the insertion and removal of circuit cards powered by live system backplanes.
The LM5068 provides both in-rush current control and short-circuit protection functions, and limits power supply transients in the backplane caused by the insertion of additional circuit cards. The LM5068 controls the external N-Channel MOSFET to provide programmable load current limiting and circuit breaker functions using a single external current sense resistor. The LM5068 issues a power good (PWRGD) signal at the conclusion of a successful power-on sequence. Input over-voltage or under -voltage fault conditions will cancel the PWRGD indication.
The LM5068-1 and -2 indicate power-good as an open-drain active HIGH PWRGD state. The LM5068-3 and -4 indicate power-good as an open-drain active LOW PWRGD state. The LM5068-1 and -3 latch off after a fault condition is detected while the LM5068-2 and -4 continuously re-try at intervals set by a programmable timer.
