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MAX5934, MAX5934A
Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity
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Status
Active: In Production.
Description
The MAX5934/MAX5934A are fully integrated hot-swap
controllers for +9V to +80V (MAX5934A) positive supply
rails. The MAX5934 is optimized for +33V to +80V
power-supply rails. These devices allow for the safe
insertion and removal of circuit cards into a live backplane
without causing glitches on the backplane
power-supply rail. The MAX5934/MAX5934A feature a
programmable analog foldback current limit, programmable
undervoltage lockout, and programmable output-
voltage slew rate through an external n-channel
MOSFET. In addition, if these devices remain in current
limit for more than a programmable time, the external
n-channel MOSFET latches off.
The MAX5934/MAX5934A feature pin-selectable
PWRGD_ assertion polarity (active low or active high)
and pin-selectable fault management (latched or
autoretry). Other features include automatic restart after
a circuit-breaker fault, selectable duty-cycle (DC)
options, and thermal-shutdown mode for overtemperature
protection.
The MAX5934/MAX5934A operate in the extended
(-40°C to +85°C) temperature range and are available
in a 16-pin QSOP package.
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Data Sheet
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Key Features
- Provides Safe Hot Swap for +9V to +80V Power Supplies (MAX5934A)
- Safe Board Insertion and Removal from a Live Backplane
- Pin-Selectable Active-Low or Active-High Power-Good Output
- Pin-Selectable Latched or Autoretry Fault Management
- Programmable Foldback Current Limiting
- High-Side Drive for an External n-Channel MOSFET
- Built-In Thermal Shutdown
- Undervoltage Lockout (UVLO)
- Pin-Selectable Duty-Cycle Options (0.94%, 1.88%, 3.75%)
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Applications/Uses
- 24V/48V Industrial/Alarm Systems
- Electronic Circuit Breakers
- Hot Board Insertion
- Industrial High-Side Switch/Circuit Breakers
- Network Routers and Switches
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Key Specifications:
| Hot Swap Controllers |
| Part Number |
VIN
(V) |
VIN
(V) |
Circuit Breaker/ Current Limit |
Fault Condition Control |
Channels |
Positive/Negative Rail |
Package/Pins |
Budgetary Price |
| min |
max |
See Notes |
| MAX5934 |
9 |
80 |
Current Limit |
Programmable |
1 |
Positive |
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$2.47 @1k |
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See All Hot Swap Controllers (53)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Application Circuit
Didn't Find What You Need?
Information Index
Document Ref.: 19-3282
Rev 1;
2004-08-17
This page last modified: 2008-03-13
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