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MAX5933, MAX5933A, MAX5933B, MAX5933C, MAX5933D, MAX5933E, MAX5933F, MAX5947, MAX5947A, MAX5947B, MAX5947C
Positive High-Voltage, Hot-Swap Controllers
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Status
Active: In Production.
Description
The MAX5933A-MAX5933F/MAX5947A/B/C fully integrated
hot-swap controllers for +9V to +80V positive supply
rails (MAX5947A/B/C), allow for the safe insertion and
removal of circuit cards into live backplanes without causing
glitches on the backplane power-supply rail. The
MAX5947B is pin- and function-compatible with the
LT1641-2. The other devices offer added features such
as a choice of active-high or active-low power-good outputs
(PWRGD/PWRGD-bar), latched/autoretry fault management,
and autoretry duty-cycle options of 3.75% or 0.94%
(see the Selector Guide).
The MAX5933A-MAX5933F are available with a default
undervoltage lockout threshold of +31V and operate over
a supply voltage range of +33V to +80V. The
MAX5947A/B/C are available with a default undervoltage
of +8.3V. All devices feature a programmable analog
foldback current limit. If the device remains in current limit
for more than a programmable time, the external
n-channel MOSFET is either latched off (MAX5933A/MAX5933C/MAX5947A) or is set to automatically restart
after a timeout delay (MAX5933B/MAX5933D/MAX5933E/MAX5933F/MAX5947B/MAX5947C).
The MAX5933_ and MAX5947_ operate in the extended
temperature range of -40°C to +85°C. These devices are
available in an 8-pin SO package.
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Data Sheet
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Key Features
- Pin- and Function-Compatible with the LT1641-2 (MAX5947B)
- Provides Safe Hot Swap for +9V to +80V Power-Supply Range (MAX5947A/B/C)
- Safe Board Insertion and Removal from Live Backplanes
- Latched/Autoretry Management
- Active-Low or Active-High Power-Good Output
- Programmable Foldback Current Limiting
- High-Side Drive for an External N-Channel MOSFET
- Built-In Thermal Shutdown
- Undervoltage Lockout (UVLO)
- Overvoltage Protection
- User-Programmable Supply Voltage Power-Up Rate
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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 |
| MAX5933 |
33 |
80 |
Current Limit |
| Latched Off | | Periodic Retry |
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1 |
Positive |
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$2.23 @1k |
| MAX5947 |
9 |
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$2.23 @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
Functional Diagram
Didn't Find What You Need?
Information Index
Document Ref.: 19-3263
Rev 1;
2004-07-27
This page last modified: 2009-10-12
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