Rainbow-electronics MAX5970 Manuel d'utilisateur

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_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
19-5128; Rev 0; 1/10
General Description
The MAX5970 dual hot-swap controller provides com-
plete protection for systems with two supply voltages
from 0V to +16V. The MAX5970 includes four program-
mable LED outputs. The two hot-swap channels can be
configured to operate as independent hot-swap control-
lers, or as a pair operating together so that both chan-
nels shut down if either channel experiences a fault.
The MAX5970 provides two programmable levels of
overcurrent circuit-breaker protection: a fast-trip thresh-
old for a fast turn-off, and a lower slow-trip threshold for
a delayed turn-off. The maximum overcurrent circuit-
breaker threshold range is set independently for each
channel with a trilevel logic input IRNG_, or by program-
ming though the I
2
C interface.
The MAX5970 is an advanced hot-swap controller that
monitors voltage and current with an internal 10-bit
ADC which is continuously multiplexed to convert the
output voltage and current of both hot-swap channels at
10ksps. Each 10-bit sample is stored in an internal circu-
lar buffer so that 50 past samples of each signal can be
read back through the I
2
C interface at any time or after
a fault condition.
The device includes five user-programmable digital
comparators per hot-swap channel to implement over-
current warning and two levels of overvoltage/undervolt-
age detection. When any of the measured values violates
the programmable limits, an external ALERT output is
asserted. In addition to the ALERT signal, the MAX5970
can be programmed to deassert the power-good signal
and/or turn off the external MOSFET.
The MAX5970 features four I/Os that can be indepen-
dently configured as general-purpose inputs/outputs
(GPIOs) or as open-drain LED drivers with program-
mable blinking. These four I/Os can be configured for
any mix of LED driver or GPIO function.
The MAX5970 is available in a 36-pin thin QFN-EP pack-
age and operates over the -40NC to +85NC extended
temperature range.
Features
S Two Independent Hot-Swap Controllers Operate
from 0V to +16V
S 10-Bit ADC Monitors Voltage and Current of Each
Channel
S Circular Buffers Store 5ms of Current and Voltage
Measurements
S Two Independent Internal Charge Pumps
Generate n-Channel MOSFET Gate Drives
S Internal 500mA Gate Pulldown Current for Fast
Shutdown
S VariableSpeed/BiLevel™ Circuit-Breaker
Protection
S Independent Precision-Voltage Enable Inputs
S Alert Output Indicates Fault and Warning
Conditions
S Independent Power-Good Outputs
S Independent Fault Outputs
S Four Open-Drain Outputs Sink 25mA to Directly
Drive LEDs
S Programmable LED Flashing Function
S Autoretry or Latched Fault Management
S 400kHz I
2
C Interface
S Small 6mm x 6mm, 36-Pin TQFN-EP Package
Applications
Single PCI Express
M
Hot-Plug Slot
Blade Servers
Disk Drives/DASD/Storage Systems
Soft-Switch for ASICs, FPGAs, and Microcontrollers
with Independent Core and I/O Voltages
Ordering Information
VariableSpeed/BiLevel is a trademark of Maxim Integrated Products, Inc.
PCI Express is a registered trademark of PCI-SIG Corp.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX5970ETX+
-40NC to +85NC
36 TQFN-EP*
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Résumé du contenu

Page 1 - AVAILABLE

_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, pleas

Page 2 - ABSOLUTE MAXIMUM RATINGS

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597010 ___________________________________________

Page 3

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 4

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597012 ___________________________________________

Page 5 - GATE-DRIVE VOLTAGE vs. V

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 6 - = 3.3V, T

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597014 ___________________________________________

Page 7

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 8

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597016 ___________________________________________

Page 9

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 10

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597018 ___________________________________________

Page 11

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 12

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX59702 ____________________________________________

Page 13

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597020 ___________________________________________

Page 14 - Grouping Hot-Swap Channels

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 15

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597022 ___________________________________________

Page 16 - Circuit-Breaker Protection

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 17

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597024 ___________________________________________

Page 18

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 19

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597026 ___________________________________________

Page 20 - Digital Current Monitoring

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 21

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597028 ___________________________________________

Page 22

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 23 - Power-Good Outputs

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 24

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597030 ___________________________________________

Page 25

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 26

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597032 ___________________________________________

Page 27

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 28

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597034 ___________________________________________

Page 29 - Peak-Detection Registers

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 30

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597036 ___________________________________________

Page 31 - Circular Buffer

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 32

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597038 ___________________________________________

Page 33 - Fault Logging and Indications

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 34

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX59704 ____________________________________________

Page 35 - LED Set Registers

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX597040 ___________________________________________

Page 36 - Table 53. LED State Register

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970Maxim cannot assume responsibility for use of any

Page 37

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 38 - C Protocols

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX59706 ____________________________________________

Page 39 - Figure 8. Acknowledge

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

Page 40

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Page 41 - 41

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED DriversMAX5970__________________________________________________

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