|
|
|
MAX5930, MAX5931
Low-Voltage, Triple, Hot-Swap Controllers/Power Sequencers/Voltage Trackers
|
Status
Active: In Production.
Description
The MAX5930/MAX5931 +1V to +13.2V triple hot-swap
controllers provide complete protection for multisupply
systems. They allow the safe insertion and removal of
circuit cards into live backplanes. These devices hot
swap multiple supplies ranging from +1V to +13.2V,
provided one supply is at or above +2.7V and only one
supply is above 11V. The input voltage rails (channels)
can be configured to sequentially turn-on/off, track
each other, or have completely independent operation.
The discharged filter capacitors of the circuit card provide
low impedance to the live backplane. High inrush
currents from the backplane to the circuit card can burn
up connectors and components, or momentarily collapse
the backplane power supply leading to a system reset.
The MAX5930/MAX5931 hot-swap controllers prevent
such problems by gradually ramping up the output voltage
and regulating the current to a preset limit when the
board is plugged in, allowing the system to stabilize
safely. After the startup cycle is complete, on-chip comparators
provide VariableSpeed/BiLevel™ protection
against short-circuit and overcurrent faults, and provide
immunity against system noise and load transients.
The load is disconnected in the event of a fault condition.
The MAX5930/MAX5931 fault-management mode
is selectable, allowing latched fault or autoretry after a
fault condition.
The MAX5930/MAX5931 offer a variety of options to
reduce external component count and design time. All
devices integrate an on-board charge pump to drive
the gates of low-cost, external N-channel MOSFETs, an
adjustable startup timer, and an adjustable current limit.
The devices offer integrated features like startup current
regulation and current glitch protection to eliminate
external timing resistors and capacitors. The
MAX5931L provides an open-drain, active-low status
output for each channel, the MAX5931H provides an
open-drain, active-high status output for each channel,
and the MAX5930 status output polarity is selectable.
The MAX5930 is available in a 24-pin QSOP package,
and the MAX5931 is available in a 20-pin QSOP package.
All devices are specified over the extended -40°C
to +85°C temperature range.
|
|
Data Sheet
|
Key Features
- Safe Hot Swap for +1V to +13.2V Power Supplies
with Any Input Voltage (VIN_) > 2.7V and Only One
VIN_ > 11.0V
- Adjustable Circuit Breaker/Current-Limit
Threshold from 25mV to 100mV
- Configurable Tracking, Sequencing, or
Independent Operation Modes
- VariableSpeed/BiLevel Circuit-Breaker Response
- Internal Charge Pumps Generate N-Channel
MOSFET Gate Drives
- Inrush Current Regulated at Startup
- Autoretry or Latched Fault Management
- Programmable Undervoltage Lockout
- Status Outputs Indicate Fault/Safe Condition
|
|
Applications/Uses
- Base-Station Line Cards
- Bays (Docking Stations)
- Hot Plug-In Daughter Cards
- Hubs
- Network Routers and Switches
- Portable Computer Device
- Power-Supply
- RAID
- Sequencing/Tracking
- Solid-State Circuit Breakers
|
|
|
|
Key Specifications:
| Hot Swap Controllers |
| Part Number |
VIN
(V) |
VIN
(V) |
Circuit Breaker/ Current Limit |
Circuit Breaker/Current Limit Threshold
(mV) |
Fault Condition Control |
Channels |
Positive/Negative Rail |
Package/Pins |
Budgetary Price |
| min |
max |
See Notes |
| MAX5930 |
1 |
13.2 |
Current Limit |
25 |
Programmable |
3 |
Positive |
|
- |
| MAX5931 |
|
- |
|
See All Hot Swap Controllers (53)
|
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.
|
|
Diagram
Typical Operating Circuit
Reliability Reports
| Reliability Report: |
MAX5930.pdf |
| Show FIT data for: |
|
| Request Reliability Report for: |
|
Software/Models
Ordering Information
|
Part Number
|
Free
Sample |
Buy |
Status
|
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX5930EEG
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*
|
-40°C to +85°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX5930EEG+
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5930EEG+T
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5930EEG-T
|
|
|
Active |
QSOP;24 pin
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
| MAX5931HEEP
|
|
|
Active |
QSOP;20 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*
|
-40°C to +85°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX5931HEEP+
|
|
|
Active |
QSOP;20 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5931HEEP+T
|
|
|
Active |
QSOP;20 pin
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
| MAX5931HEEP-T
|
|
|
Active |
QSOP;20 pin
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
| MAX5931LEEP
|
|
|
Active |
QSOP;20 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*
|
-40°C to +85°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX5931LEEP+
|
|
|
Active |
QSOP;20 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
|
Part Number
|
Free
Sample |
Buy |
Status
|
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX5931LEEP+T
|
|
|
Active |
QSOP;
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
| MAX5931LEEP-T
|
|
|
Active |
QSOP;20 pin
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
|
Similar Products by Function
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-3032
Rev 2;
2004-02-06
This page last modified: 2009-10-08
|
|
|
Download
E-Mail