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Maxim > Solutions > Network Hubs, Switches, and Routers

Hot Swap

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet
MAX5965A, MAX5965B

Meet IEEE 802.3at Standard and Deliver Up to 45W for High-Power (POE+) PSE Applications
QV  PDF Dual, 7.5V to 76V, Hot-Swap and Diode ORing Controller
MAX5963

Industry's First 7.5V to 76V, Hot-Swap and Diode ORing Controller
QV  PDF Low-Voltage, Triple, Hot-Swap Controllers/Power Sequencers/Voltage Trackers
MAX5930A, MAX5931A, MAX5931B

Triple, Hot-Swap Controllers Enable Sequencing, Tracking, or Independent On/Off Control for Low-Voltage Supplies
QV  PDF 12V Hot-Plug Switch
DS4560

Integrated, Self-Protected Electronic Switch Allows the Safe Insertion and Removal of Equipment Into 12V Backplanes
QV    0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor
MAX5961

Industry's First Quad, Hot-Swap Controller Operates Down to 0V and Integrates a Voltage and Current Monitor
QV  PDF Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers
MAX5927A, MAX5929A, MAX5929B, MAX5929C, MAX5929D

Triple/Quad, Hot-Swap Controllers Enable Sequencing, Tracking, or Independent On/Off Control for Low-Voltage Supplies
QV  PDF High-Power, Quad, PSE Controller for Power-Over-Ethernet
MAX5952

Meets IEEE 802.3at Standard and Delivers Up to 45W for High-Power (POE+) PSE Applications
QV  PDF +48V Quad Hot-Swap Controllers For Power-Over-LAN
MAX5913A, MAX5914A

Highly Integrated Board Solution Reduces Board Space, Cost, and System Design Time
QV  PDF Low-Voltage, Dual Hot-Swap Controllers with Independent On/Off Control
MAX5955, MAX5956

QV  PDF Quad Network Power Controller for Power-Over-LAN
MAX5945

QV  PDF -48V Hot-Swap Controllers with External RSENSE
MAX5949A, MAX5949B

QV  PDF -48V Hot-Swap Controllers with External RSENSE
MAX5948, MAX5948A, MAX5948B

QV  PDF 1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor
MAX5924, MAX5925, MAX5926

QV  PDF Dual FireWire Current Limiter and Low-Drop ORing Switch Controller
MAX5944

QV  PDF -48V Hot-Swap Controller with VIN Step Immunity, No RSENSE, and Overvoltage Protection
MAX5938

QV  PDF -48V Hot-Swap Controllers with VIN Step Immunity and No RSENSE
MAX5936, MAX5937

Hot-Swap Controllers with VIN Step Immunity and No RSENSE for -10V to -80V Rails
QV  PDF Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity
MAX5934, MAX5934A

QV  PDF Positive High-Voltage, Hot-Swap Controllers
MAX5933, MAX5933A, MAX5933B, MAX5933C, MAX5933D, MAX5933E, MAX5933F, MAX5947, MAX5947A, MAX5947B, MAX5947C

QV  PDF High-Side Power and Current Monitors
MAX4210, MAX4211

QV  PDF IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5942A, MAX5942B

QV  PDF IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5941A, MAX5941B

Industry's First Fully Integrated IEEE 802.3af-Compliant Power-over-Ethernet Power-Supply ICs
QV  PDF Quad Network Power Controller for Power-Over-LAN
MAX5935

QV  PDF Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers
MAX5927, MAX5929

Triple/Quad Hot-Swap Controllers Enable Sequencing, Tracking, or Independent On/Off Control for Low-Voltage Supplies
QV  PDF -48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current
MAX5921, MAX5939

QV  PDF -48V Hot-Swap Controller with External RSENSE
MAX5920

Hot-Swap Controller with External RSENSE Well-Suited for -48V Power Systems
QV  PDF Smallest, Most Reliable, 12V, InfiniBand-Compliant Hot-Swap Controller
MAX8533

Smallest, 12V, InfiniBand-Compliant, Hot-Swap Controller for Blade Servers
QV  PDF +60V Simple Swapper Hot-Swap Switch
MAX5923

QV  PDF +48V, Single-Port Network Power Switch For Power-Over-LAN
MAX5922

Industry's First Single-Port Network Power Switch for Power-over-LAN
QV  PDF Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers
MAX5904, MAX5905, MAX5906, MAX5907, MAX5908, MAX5909

QV  PDF +65V Simple Swapper Hot-Swap Switches
MAX5910, MAX5917

QV  PDF -100V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers
MAX5900, MAX5901

QV  PDF +72V SOT23/TDFN Simple Swapper Hot-Swap Controllers
MAX5902, MAX5903

QV  PDF -48V, Simple Swapper Hot-Swap Switches
MAX5911, MAX5912

-48V Hot Swap Switch Targets IP Phones and Data Terminal Equipment Requiring Data and Power on the Same Cable
QV  PDF 3V to 12V, Current-Limiting, Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection
MAX4271, MAX4272, MAX4273

3V to 12V Hot Swap Controller with Latched Protection or Auto-Retry in 8-SO



Key Specifications:  Current Sense Amplifiers
Part Number CMVR
(V)
CMVR
(V)
VCC
(V)
VCC
(V)
ICC
(µA)
Bi-Dir. Curr. Sense VSENSE_FS
(mV)
Gain Gain Accuracy @25°C
(%)
BW
(kHz)
Comp-
arators
Oper. Temp.
(°C)
Package/Pins
min max min max typ recomm. max @ -3dB
MAX4211  4 28 2.7 5.5 670 No
100
150
16.67 V/V
25 V/V
40.96 V/V
1.5 220 2 -40 to +85
TQFN/16
TSSOP/16
MAX4210  380 0
µMAX/8
TDFN-EP/6
See All Current Sense Amplifiers (26)

Key Specifications:  Hot Swap Controllers
Part Number VIN
(V)
VIN
(V)
Low Volt. High Volt. Voltage Polarity Type Fault Condition Control Channels Features Package/Pins
min max
DS4560  9 13.2 No Yes Positive Positive, Low-Voltage
Latched Off
Periodic Retry
1
0.025Ω Onboard Power Mosfet
Adjustable Output-Voltage Slew Rate
Adjustable Power-Up Timer with External Enable
Input Over-Voltage Lockout
Input Under-Voltage Lockout
Latchoff and Autoretry Versions Available
Over-Temperature Detect
Programmable Current-Limit Threshold
Programmable In-Rush and Short-Circuit Protection
Thermal Shutdown
SOIC(N)/8
MAX5963  7.5 76 No Yes Positive Positive, High-Voltage
Latched Off
Latched Off or Periodic Retry
Periodic Retry
Programmable Latched Off or Periodic Retry
2
1A Peak Short-Circuit Gate Pulldown Current
125mA Fast Gate Pulldown Current
Adjustable Auto-Retry Duty Cycle and Circuit-Breaker Timeout
Adjustable Auto-Retry Duty Cycle and Over-Current Timeout
Adjustable Circuit Breaker Threshold
Bi-Directional Load Disconnect
Circuit-Breaker Function
Drives External Dual MOSFET for ORing Function
Dual Firewire Controller
Fault Status Output
Fault Status Output Active Low
Independent ON/OFF Control for Each Channel
Input Under-Voltage Lockout
Latch or Auto-Restart Fault Management
On/Off Control
TQFN/40
MAX5961  2.7 16 Yes No Positive Positive, Low-Voltage Programmable Latched Off or Periodic Retry 4 -
TQFN/48
MAX5955  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off or Periodic Retry 2
25mV Circuit Breaker Threshold
Adjustable Circuit Breaker Threshold
Dual-Speed Bi-Level Inrush and Short-Circuit Protection
Independent ON/OFF Control for Each Channel
Input Under-Voltage Lockout
Latch or Auto-Restart Fault Management
On/Off Control
Output Undervoltage/Overvoltage Protection
Power-Good Output (Active-High)
Programmable Current-Limit Threshold
Programmable UVLO
Regulated In-Rush Current
QSOP/16
MAX5956  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off or Periodic Retry 2
25mV Circuit Breaker Threshold
Adjustable Circuit Breaker Threshold
Dual-Speed Bi-Level Inrush and Short-Circuit Protection
Fault Status Output
Independent ON/OFF Control for Each Channel
Input Under-Voltage Lockout
Latch or Auto-Restart Fault Management
On/Off Control
Output Undervoltage/Overvoltage Monitoring
Power-Good Output (Active-High)
Programmable Current-Limit Threshold
Programmable UVLO
Regulated In-Rush Current
QSOP/16
MAX5949  -20 -80 No Yes Negative Negative, High-Voltage Latched Off 1
50mA Gate Pull Down Current During Short Circuit Protection
In-Rush Current and Short Circuit Protection
On/Off Control
Pin and Function Compatible with LT1641xx
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Programmable In-Rush and Short-Circuit Protection
Programmable UVLO
Replaces LT4250L
SOIC(N)/8
MAX5948  -20 -80 No Yes Negative Negative, High-Voltage Latched Off 1
50mA Gate Pull Down Current During Short Circuit Protection
In-Rush Current and Short Circuit Protection
On/Off Control
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Powers-Up into Shorted Load
Programmable In-Rush and Short-Circuit Protection
Replaces the LT1640Ax/LT16
Replaces the LT1640Ax/LT1640x
SOIC(N)/8
MAX5926  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off or Periodic Retry 1
10mV Minimum Adjustable Circuit Breaker Threshold
Dual-Speed Bi-Level Inrush and Short-Circuit Protection
In-Rush Current and Short Circuit Protection
Latch or Auto-Restart Fault Management
May use MOSFET ON Resistance or External Rsense as Current Detect
QSOP-EP/16
MAX5944  7.5 37 Yes No Positive Positive, Low-Voltage Periodic Retry 2
2ms Default Current-Limit Timeout
125mA Fast Gate Pulldown Current
Bi-Directional Load Disconnect
Dual Firewire Controller
Fault Status Output Active Low
In-Rush Current and Short Circuit Protection
Powers-Up into Shorted Load
Programmable In-Rush and Short-Circuit Protection
SOIC(N)/16
MAX5934  9 80 No Yes Positive Positive, High-Voltage Programmable Latched Off or Periodic Retry 1
3 Power-Good Outputs for Output U/V, Input O/V, & Gate Voltage Status
Adjustable Auto-Retry Duty Cycle and Circuit-Breaker Timeout
Latch or Auto-Restart Fault Management
Output Undervoltage Monitor
Power-Good Output Programmable
QSOP/16
MAX5933  33 80 No Yes Positive Positive, High-Voltage
Latched Off
Periodic Retry
1
70mA Gate Pulldown Current During Any Fault Condition
Auto-Retry Fault Management
In-Rush Current and Short Circuit Protection
On/Off Control
Output Undervoltage Monitor
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Powers-Up into Shorted Load
Programmable Start-Up, Overcurrent, and Load-Disconnect Timeouts
SOIC(N)/8
MAX5947  9 80 No Yes Positive Positive, High-Voltage
Latched Off
Periodic Retry
1
70mA Gate Pulldown Current During Any Fault Condition
Auto-Retry Fault Management
In-Rush Current and Short Circuit Protection
On/Off Control
Output Undervoltage Monitor
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Powers-Up into Shorted Load
Programmable Start-Up, Overcurrent, and Load-Disconnect Timeouts
SOIC(N)/8
MAX5938  -10 -80 No Yes Negative Negative, High-Voltage Periodic Retry 1
400mA Gate Pulldown Current
Auto-Retry Fault Management
Immune to Input-Voltage Steps and Current Spikes
In-Rush Current and Short Circuit Protection
On/Off Control
Output Short Circuit Detection Before Startup
Power-Good Output Programmable
QSOP/16
MAX5920  -20 -80 No Yes Negative Negative, High-Voltage Latched Off 1
Immune to Input-Voltage Steps and Current Spikes
In-Rush Current and Short Circuit Protection
On/Off Control
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Powers-Up into Shorted Load
Programmable In-Rush and Short-Circuit Protection
Programmable OV protection
SOIC(N)/8
MAX5921  -20 -80 No Yes Negative Negative, High-Voltage Periodic Retry 1
500mA Gate Pulldown Current During Short-Circuit Protection
Immune to Input-Voltage Steps and Current Spikes
In-Rush Current and Short Circuit Protection
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
Programmable OV protection
Thermal Shutdown
UVLO glitch filter
Withstands -100V Input Transients
SOIC(N)/8
MAX5927  1 13.2 Yes No Positive Positive, Low-Voltage Programmable Latched Off or Periodic Retry 4
25mV Circuit Breaker Threshold
50mA Gate Pull Down Current During Short Circuit Protection
Adjustable Auto-Retry Duty Cycle and Over-Current Timeout
Configurable Tracking, Sequencing, or Independent Operation Modes
Independent ON/OFF Control for Each Channel
TQFN/32
MAX5929  1 13.2 Yes No Positive Positive, Low-Voltage
Latched Off
Periodic Retry
4
25mV Circuit Breaker Threshold
50mA Gate Pull Down Current During Short Circuit Protection
Auto-Retry Fault Management
Configurable Tracking, Sequencing, or Independent Operation Modes
Fault Status Output
In-Rush Current and Short Circuit Protection
Independent ON/OFF Control for Each Channel
Latch or Auto-Restart Fault Management
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
QSOP/24
MAX5939  -20 -80 No Yes Negative Negative, High-Voltage Latched Off 1
500mA Gate Pulldown Current During Short-Circuit Protection
Immune to Input-Voltage Steps and Current Spikes
Improved Replacement for LT1640L & LT4250L
In-Rush Current and Short Circuit Protection
On/Off Control
Power-Good Output (Active-High)
Power-Good Output (Active-Low)
SOIC(N)/8
MAX5935  -32 -60 No Yes Negative Negative, High-Voltage - 4
Auto, Semi-Auto, Manual, Shutdown, and Debug Modes
Class Overcurrent Protection
Fault Status Output
Four-bit Addressable
I2C Compatible Interface
IEEE802.3af Compliant/Compatible
Independent ON/OFF Control for Each Channel
Over-Temperature Detect
SSOP/36
MAX5923  16 60 No Yes Positive Positive, High-Voltage Programmable Latched Off or Periodic Retry 1
Fault Status Output
On/Off Control
Open-Circuit Detection
Programmable Output Current Limit Up To 800mA
Thermal Shutdown
TSSOP/20
MAX8533  10 14 Yes No Positive Positive, Low-Voltage Latched Off 1
Fault Status Output
In-Rush Current and Short Circuit Protection
On/Off Control
Output Undervoltage/Overvoltage Protection
Power-Good Output (Active-High)
Regulated DualSpeed/BiLevel Current Limit
µMAX/10
MAX5904  1 13.2 Yes No Positive Positive, Low-Voltage Periodic Retry 2
25mV Circuit Breaker Threshold
On/Off Control
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
SOIC(N)/8
MAX5905  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off 2
25mV Circuit Breaker Threshold
On/Off Control
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
SOIC(N)/8
MAX5906  1 13.2 Yes No Positive Positive, Low-Voltage Periodic Retry 2
Adjustable Circuit Breaker Threshold
Output Undervoltage/Overvoltage Protection
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
QSOP/16
MAX5907  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off 2
Adjustable Circuit Breaker Threshold
Output Undervoltage/Overvoltage Protection
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
QSOP/16
MAX5908  1 13.2 Yes No Positive Positive, Low-Voltage Periodic Retry 2
Adjustable Circuit Breaker Threshold
Output Undervoltage/Overvoltage Protection
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
QSOP/16
MAX5909  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off 2
Adjustable Circuit Breaker Threshold
Output Undervoltage/Overvoltage Protection
Regulated In-Rush Current
Short-Circuit Protection
VariableSpeed/BiLevel Protection
QSOP/16
MAX5910  10 65 No Yes Positive Positive, High-Voltage Latched Off 1
Fault Status Output
Internal Switch Protection
On/Off Control
Open-Circuit Detection
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOIC(N)/8
MAX5917  10 65 No Yes Positive Positive, High-Voltage Latched Off 1
Fault Status Output
Internal Switch Protection
On/Off Control
Open-Circuit Detection
Regulated DualSpeed/BiLevel Current Limit
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOIC(N)/16
MAX5900  -9 -100 No Yes Negative Negative, High-Voltage
Latched Off
Periodic Retry
1
Auto-Retry Fault Management
Circuit-Breaker Function
Latch or Auto-Restart Fault Management
On/Off Control
Power-Good Output (Active-Low)
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOT/6
TDFN-EP/6
MAX5901  -9 -100 No Yes Negative Negative, High-Voltage
Latched Off
Periodic Retry
1
Auto-Retry Fault Management
Circuit-Breaker Function
Latch or Auto-Restart Fault Management
On/Off Control
Power-Good Output (Active-High)
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOT/6
TDFN-EP/6
MAX5911  -16 -65 No Yes Negative Negative, High-Voltage Latched Off 1
Fault Status Output
Internal Switch Protection
On/Off Control
Open-Circuit Detection
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOIC(N)/8
MAX5912  -16 -65 No Yes Negative Negative, High-Voltage Latched Off 1
Fault Status Output
Internal Switch Protection
On/Off Control
Open-Circuit Detection
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOIC(N)/16
MAX5902  9 72 No Yes Positive Positive, High-Voltage
Latched Off
Latched Off or Periodic Retry
Periodic Retry
Programmable Latched Off or Periodic Retry
1
Circuit-Breaker Function
On/Off Control
Power-Good Output (Active-Low)
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOT/6
TDFN-EP/6
MAX5903  9 72 No Yes Positive Positive, High-Voltage
Latched Off
Latched Off or Periodic Retry
Periodic Retry
Programmable Latched Off or Periodic Retry
1
Circuit-Breaker Function
On/Off Control
Power-Good Output (Active-Low)
Regulated In-Rush Current
Short-Circuit Protection
Thermal Shutdown
SOT/6
TDFN-EP/6
MAX4271  2.7 13.2 Yes No Positive Positive, Low-Voltage Latched Off 1
On/Off and STAT Control
Regulated DualSpeed/BiLevel Current Limit
Short-Circuit Protection
SOIC(N)/8
MAX4272  2.7 13.2 Yes No Positive Positive, Low-Voltage Periodic Retry 1
On/Off and STAT Control
Regulated DualSpeed/BiLevel Current Limit
Short-Circuit Protection
SOIC(N)/8
MAX4273  2.7 13.2 Yes No Positive Positive, Low-Voltage Programmable Latched Off or Periodic Retry 1
On/Off, STAT, and POR Controls
Regulated DualSpeed/BiLevel Current Limit
Short-Circuit Protection
QSOP/16
SOIC(N)/16
See All Hot Swap Controllers (47)

Key Specifications:  ORing MOSFET Controllers
Part Number Reverse Current Protect. Under Voltage Protect Charge Pump Cap. Soft Start Enable Fault Indicator EV Kit RoHS Available Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
max w/pins
MAX5944  Yes Yes No Yes Yes Yes Yes Yes
SOIC(N)/16
62 -40 to +85
See All ORing MOSFET Controllers (5)

Key Specifications:  Power Sourcing Equipment
Part Number IEEE Compliance High Power Mode Channels Port Current Readout Load Disconnect Program-
mability
RoHS Available Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
max w/pins
MAX5952 
802.3af
Pre-803.3at
Yes 4 I2C AC/DC I2C Yes
SSOP/36
163.4
-40 to +85
0 to +85
MAX5945  802.3af No 4 No AC/DC I2C
SSOP/36
163.4
-40 to +85
0 to +70
MAX5922  802.3af No 1 No DC -
TSSOP/28
64.7 -40 to +85
See All Power Sourcing Equipment (3)

Key Specifications:  Powered Devices
Part Number IEEE Compliance RDS(ON)
(Ω)
PWM fS
(kHz)
Protection Features Prog. UVLO RoHS Available Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
PD MOSFET max w/pins
MAX5941  802.3af 0.6 Yes 275 Programmable Inrush Current Yes Yes
SOIC(N)/16
62 -40 to +85
MAX5942 
SOIC(N)/16
See All Powered Devices (4)



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