LM5069MM-2/NOPB - 80V Hot Swap Controller w/ Power Limit | TI
MPN: LM5069MM-2/NOPB ✓ فعالLM5069MM-2/NOPB جائزہ
What is a hot-swap controller? A hot-swap controller is a power-management IC that allows a circuit board to be inserted into a live backplane without drawing inrush currents large enough to damage connectors, blow fuses, or collapse the upstream rail. It drives an external N-channel MOSFET in the high-side path and combines programmable inrush current limiting, power limiting, undervoltage/overvoltage lockout, and a fault timer. Hot-swap controllers belong to the wider power-management hierarchy: hot-swap controller -> hot-swap & power distribution -> power management IC -> semiconductor.
Key features include programmable current limit set by an external sense resistor, a 0.7-ms internal fault timer that distinguishes inrush from sustained fault, independent OV/UV thresholds with hysteresis, a power-good indicator, and a board-insertion delay. The DGS VSSOP package occupies roughly the same board area as a 10-pin MSOP while providing enhanced thermal performance for the dissipation levels encountered in -48V telecom and 24V industrial rails.
The device uses a transconductance control loop with a dv/dt circuit on GATE, charging the MOSFET gate with a programmable current source to ensure monotonic rail ramp. Power limiting is implemented by measuring the voltage across the sense resistor multiplied by VIN, giving a true input-power limit rather than a simple current foldback, which protects the upstream supply during capacitive or short-circuit events. The LM5069-2 auto-restart behavior retries every 220 ms (typical) after a fault, ideal for transient overload recovery.
Typical applications include -48V telecom plug-in cards, 24V/48V industrial automation modules, blade servers and ATCA front-end boards, battery exchange modules in UPS systems, and PoE midspan power insertion. The wide 80V input range also tolerates load-dump transients on 24V automotive and heavy-industrial buses.
A design consideration worth highlighting: the LM5069MM-2/NOPB differs from the LM5069MM-1 by auto-restart rather than latch-off after faults. Selection should reflect whether the system requires operator intervention (latch) or unattended recovery (auto-restart). PCB layout should keep the sense-resistor trace short and Kelvin-connected to the CS pin to avoid ground bounce from corrupting the current measurement.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, including a head-to-head comparison with the LM5069MM-1 and TPS2490DGS in the same VSSOP-10 footprint.
کے لیے ڈراپ اِن متبادل LM5069MM-2/NOPB — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں LM5069MM-2/NOPB (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Function, MSL Level.
LM5069MM-1/NOPB
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →LM5069MMX-2/NOPB
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
LM5069MMX-1/NOPB
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
LM5069MM-2
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TPS2490DGS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
LM5069MM-2/NOPB تفصیلات
| فنکشن | Hot Swap Controller, High-Side, Positive Voltage |
| Number of Channels | 1 |
| اِن پٹ وولٹیج رینج | 9 V to 80 V |
| Internal Switch | No (external N-channel MOSFET required) |
| Current Limit Type | Programmable via external sense resistor (with power limiting) |
| Fault Behavior (suffix) | -2 = auto-restart at fixed duty cycle; -1 = latched off |
| Fault Timer | Programmable via external capacitor |
| Undervoltage Lockout | Programmable with external resistor divider |
| Overvoltage Lockout | Programmable with external resistor divider |
| پاور گڈ آؤٹ پٹ | Yes, open-drain PGOOD pin |
| آپریٹنگ درجہ حرارت رینج | -40 C to +125 C |
| پیکیج | 10-VSSOP (DGS), 3.0 mm body |
| ماؤنٹنگ ٹائپ | Surface Mount |
| MSL لیول | 1 (unlimited) |
| RoHS / Lead-Free Status | RoHS compliant, lead-free (NOPB suffix) |
LM5069MM-2/NOPB پن کنفیگریشن
| پن 1 | VIN — Input supply voltage, 9 V to 80 V |
| پن 2 | VOUT — Output voltage sense (after MOSFET) |
| پن 3 | SENSE — Kelvin connection to top of external current-sense resistor |
| پن 4 | CS — Kelvin connection to bottom of external current-sense resistor |
| پن 5 | GND — Ground reference |
| پن 6 | PGOOD — Open-drain power-good output |
| پن 7 | OVLO — Overvoltage lockout programming input |
| پن 8 | UVLO — Undervoltage lockout programming input |
| پن 9 | TIMER — Fault timer capacitor connection |
| پن 10 | GATE — Gate drive output for external N-channel MOSFET |
عام استعمالات
LM5069MM-2/NOPB کے لیے موزوں ہے 6 ایپلیکیشنs: -48V Telecom Hot Swap Card, 24V Industrial PLC I/O Module, ATCA / Blade Server Front-End, Battery Exchange in UPS / Storage Systems, PoE Midspan / Power-Insertion Equipment, Automotive 24V Heavy-Equipment ECU.
-48V Telecom Hot Swap Card
The LM5069MM-2/NOPB is a textbook fit for -48V telecom plug-in modules where the upstream bus cannot tolerate inrush above the standard 4A steady-state limit. Its 80V absolute-max input comfortably covers the -75V transient envelope of ETSI/NEBS telecom feeds, while true input power limiting protects the central battery plant from capacitive charge surges. Place a 100V-rated N-channel MOSFET in the high-side path with a Kelvin-connected 5 milliohm sense resistor and set fault timer to 1 ms via a 470 pF capacitor, then connect the LM5069's GATE to the MOSFET gate to drive monotonic VOUT ramp. The auto-restart -2 suffix recovers automatically after a transient short, reducing remote-site truck rolls.
تجویز کردہ
24V Industrial PLC I/O Module
In 24V industrial PLC and distributed I/O modules, the LM5069MM-2/NOPB protects field-wiring faults by limiting inrush to a programmable value while tolerating the 36V Class-2 industrial transient envelope. Program UVLO to ~18V to ride out brownout and OVLO to ~32V for load-dump tolerance, then drive an external 60V SOA-rated MOSFET. Power limiting distinguishes capacitive load (charged gracefully) from a sustained short (folded back into thermal protection). The 10-VSSOP footprint is narrow enough to mount beside the field-connector, and the open-drain PGOOD pin interfaces directly to the host MCU for system-level diagnostics.
تجویز کردہ
ATCA / Blade Server Front-End
The LM5069MM-2/NOPB is well-suited to AdvancedTCA and proprietary blade-server front-end cards where the 48V backplane must see less than 1A inrush per slot during insertion. With a 10 milliohm sense resistor the controller holds inrush below 5A and imposes a dv/dt ramp via the programmable gate-charge current, eliminating the need for bulky pre-charge circuits. Auto-restart behavior recovers from temporary overloads (e.g., hot-swap of a downstream daughter-card) without operator intervention, important in unattended data-center aisles. PGOOD drives the IPMC signal chain to flag healthy insertion to the shelf manager.
تجویز کردہ
Battery Exchange in UPS / Storage Systems
Battery exchange modules in UPS, telecom backup, and grid-storage systems use the LM5069MM-2/NOPB to precharge the DC bus capacitor before connecting the battery stack, avoiding hundreds-of-amps inrush that weld relay contacts. The 9-80V input range covers both 24V and 48V battery configurations, and true input power limiting prevents the discharge bus from sagging when a deeply discharged stack is first connected. Program the fault timer to ~100 ms to distinguish legitimate precharge (sub-second) from a shorted battery, and auto-restart retries precharge on its own. For large Li-ion packs, the FW will reset itself on overcurrent rather than requiring manual maintenance.
تجویز کردہ
PoE Midspan / Power-Insertion Equipment
Power-over-Ethernet midspans and DC-power inserters benefit from the LM5069MM-2/NOPB's small VSSOP footprint and tight current limit when inserting a powered device into a live 48V phantom feed. The controller's programmable OV/UV thresholds can reject cable-induced transient noise on the Cat5e/Cat6 pairs, while PGOOD signals the PD detection handshake to the management controller. Use a low-Rds(on) 60V MOSFET such that continuous load current at 802.3at Class-4 (30W) produces less than 1W of dissipation in the pass element. The 10-pin footprint is smaller than legacy DPAK-based hot-swap solutions.
تجویز کردہ
Automotive 24V Heavy-Equipment ECU
The LM5069MM-2/NOPB can serve in heavy-truck and off-highway 24V ECUs where load-dump events push rail transients to 36V steady-state. The 80V absolute max absorbs ISO 7637-2 pulses that would destroy unprotected electronics, while programmable UV/OV thresholds reject under-voltage cranking and over-voltage load-dump excursions. Pair the controller with a 60V N-channel MOSFET in DFN-8 and a 5 milliohm Kelvin sense resistor to build a rugged in-line fuse replacement. Auto-restart (-2) recovers when the load-dump clears, eliminating the need for service reset on intermittent transient events.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا LM5069MM-2/NOPB — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | LM5069MM-1/NOPB | LM5069MMX-2/NOPB | LM5069MMX-1/NOPB | LM5069MM-2 | TPS2490DGS |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 10-VSSOP (DGS) | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same |
| Input Voltage Range | 9 V to 80 V | 9 V to 80 V | 9 V to 80 V | 9 V to 80 V | 9 V to 80 V | 9 V to 26 V |
| Fault Behavior | Auto-restart at fixed duty cycle | Latched off | Auto-restart | Latched off | Auto-restart | Programmable |
| Power Limiting | Yes (true input power limit) | Yes | Yes | Yes | Yes | Programmable power limit |
| Lead-Free / RoHS | Yes (NOPB) | Yes (NOPB) | Yes (NOPB) | Yes (NOPB) | No (legacy Pb finish) | Yes |
| Reel Quantity | 1000 | 1000 | 3000 | 3000 | 1000 | 2500 |
| PGOOD Output | Yes (open-drain) | Yes | Yes | Yes | Yes | Yes |
اہم امتیازی خصوصیات
- True input power limiting, not just current foldback (بمقابلہLM5060Q1MM/NOPB)
- Auto-restart vs latch-off fault philosophy (بمقابلہLM5069MM-1/NOPB)
- 80 V absolute-maximum input vs 26 V on TPS2490 (بمقابلہTPS2490DGS)
ڈیزائن نوٹس
Use a true Kelvin (4-wire) connection from the CS and SENSE pins to the current-sense resistor. Route the two CS traces tightly together as a differential pair away from the GATE switching node to avoid ground bounce and dv/dt coupling corrupting the current measurement. The TI LM5069 datasheet application section shows the reference layout.
Choose the external N-channel MOSFET with SOA margin to handle (VIN - VOUT) * ILIM during the fault timer. Estimated: at VIN = 48 V, ILIM = 5 A, fault duration 1 ms, the MOSFET must survive 240 W pulsed dissipation. A 100 V-rated MOSFET in DFN-8 with RthJA under 50 C/W is recommended. Add a TVS across the drain to source for inductive kick protection.
Do not omit the gate-to-source resistor on the external MOSFET; without it the LM5069's dv/dt control loop can mis-trigger on power-up. Use 100 kOhm as a starting value. Also ensure the TIMER capacitor has a low-leakage dielectric (COG/NPO or film) - an X7R ceramic with 20% tolerance can shift the fault window by tens of milliseconds.
Estimated: the LM5069MM-2/NOPB's VSSOP-10 dissipates approximately 0.5 W at full PGOOD sink current into a 1 square inch copper pour. With the 10-pin VSSOP RthJA of approximately 100 C/W mounted on JEDEC 4-layer test board, the junction rises 50 C above ambient at 0.5 W, which is within the 150 C maximum at 25 C ambient. Provide at least 100 mm squared of copper area on each layer for reliable operation.
تعمیل کی معلومات
RoHS compliant per /NOPB suffix and TI product page. Not AEC-Q100 qualified; choose LM5060Q1MM/NOPB for automotive applications. Lead-free and halogen-free per the TI material declaration.
