LM5066I Datasheet, PDF (1/71 Pages) Texas Instruments – 10 to 80 V, Hotswap Controller

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LM5066I
SNVS950C – APRIL 2014 – REVISED JULY 2016
LM5066I 10 to 80 V, Hotswap Controller With I/V/P Monitoring and PMBus™ Interface
1 Features
•1 10- to 80-V Operation
• 100-V Continuous Absolute Max
• 26 mV or 50 mV ILIM Threshold (±10%)
• Programmable FET SOA Protection
• Programable UV, OV, t_FAULT Thresholds
• External FET Temperature Sensing
• Failed FET Detection
• I²C / SMBus Interface
• PMBus™ and Node Manager 2.0 and 3.0
Compliant Command Structure
• Precision V _IN, V_OUT, I_IN, P_IN, V_AUX Monitoring
– V (±1.25%); I (±1.75%); P (±2.5%)
• Supports Energy Monitoring via Read_EIN
Command
• Programable I/V/P Averaging Interval
• 12-bit ADC with 1-kHz Sampling Rate
• –40°C < T_J < 125°C Operation
2 Applications
• 48-V Servers
• Base Station Power Distribution
• Networking Routers and Switchers
• PLC Power Management
• 24- to 28-V Industrial Systems
3 Description
LM5066I provides robust protection and precision
monitoring for 10- to 80-V systems. Programmable
UV, OV, I_LIMIT, and fast-short circuit protection allow
for customized protection for any application.
Programmable FET SOA protection sets the
maximum power the FET is allowed to dissipate
under any condition. The programmable fault timer
(t_FAULT) is set to avoid nuisance trips, ensure start-up,
and limit the duration of over load events.
In addition to circuit protection, the LM5066I supplies
real-time power, voltage, current, temperature, and
fault data to the system management host through
the I²C / SMBus interface. PMBus compliant
command structure makes it easy to program the
device. Precision telemetry enables intelligent power
management functions such as efficiency
optimization and early fault detection. LM5066I also
supports advanced features such as I/V/P averaging
and peak power measurment to improve system
diagnostics.
LM5066I is pin-to-pin compatible with the LM5066
and offers improved telemetry accuracy and supports
the Read_Ein command to monitor energy. See
Table 1 for a detailed comparison.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
LM5066I
PWP (28)
BODY SIZE (NOM)
9.70 × 4.40 mm²
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SPACE
VIN
CIN
Z1
R1 _R3
R2 _R4
SMBus
Interface
Simplified Schematic
Q2
RSNS
Q1
VOUT
D1
COUT
SENSE
VIN_K
VIN
GATE OUT DIODE
FB
UVLO/EN
OVLO
PGD
AGND
GND
LM5066I
ADR2
ADR1
ADR0
CL
SMBA
SDAO
RETRY
SDAI
VAUX
SCL
VDD
VREF
PWR
TIMER
R5
VDD
R6
VDD
1 PF 1 PF ^RPWR ^CTIMER
LM5066I in a Plug-in Card
48-V Bus
PMBus Hotswap
Manages Inrush,
Faults, and
Monitoring
48 V
DC/DC
12 V
Load 1
Load 2
I/V/P info
via PMBus
Micro Regulate Loads to
Controller ^{Optimize Efficiency}
Plug-in Card
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.