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Maxim > Solutions > Telecom Switches (PBX and Central Office)
Hot Swap
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| Display |
Title/Parts |
Key Advantages |
| 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 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 |
+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
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| QV PDF |
-48V Hot-Swap Controllers with External RSENSE
MAX5949A, MAX5949B
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| QV PDF |
-48V Hot-Swap Controllers with External RSENSE
MAX5948, MAX5948A, MAX5948B
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| 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
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| QV PDF |
Positive High-Voltage, Hot-Swap Controllers
MAX5933, MAX5933A, MAX5933B, MAX5933C, MAX5933D, MAX5933E, MAX5933F, MAX5947, MAX5947A, MAX5947B, MAX5947C
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| 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
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| 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
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| 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
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| QV PDF |
-100V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers
MAX5900, MAX5901
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| 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: 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| MAX5933 |
33 |
80 |
No |
Yes |
Positive |
Positive, High-Voltage |
| Latched Off | | Periodic Retry |
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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 |
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| 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 |
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| 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 |
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| 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 |
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| MAX5929 |
1 |
13.2 |
Yes |
No |
Positive |
Positive, Low-Voltage |
| Latched Off | | Periodic Retry |
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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) |
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| 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) |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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See All Hot Swap Controllers (47)
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| Key Specifications: Power Sourcing Equipment |
| Part Number |
IEEE Compliance |
High Power Mode |
Channels |
Port Current Readout |
Load Disconnect |
RoHS Available |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Oper. Temp.
(°C) |
| max w/pins |
| MAX5922 |
802.3af |
No |
1 |
No |
DC |
Yes |
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64.7 |
-40 to +85 |
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See All Power Sourcing Equipment (3)
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