19-3032; Rev 0; 10/03
Low-Voltage, Triple, Hot-Swap Controllers/
Power Sequencers/Voltage Trackers
General Description
Features
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.
♦ Safe Hot Swap for +1V to +13.2V Power Supplies
with Any Input Voltage (V ) ≥ 2.7V and Only One
IN_
V
> 11.0V
IN_
♦ Adjustable Circuit Breaker/Current-Limit
Threshold from 25mV to 100mV
♦ Configurable Tracking, Sequencing, or
Independent Operation Modes
♦ VariableSpeed/BiLevel Circuit-Breaker Response
The discharged filter capacitors of the circuit card pro-
vide 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 volt-
age 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 com-
parators provide VariableSpeed/BiLevel™ protection
against short-circuit and overcurrent faults, and provide
immunity against system noise and load transients.
♦ 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
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 QSOP
MAX5930EEG
MAX5931LEEP*
MAX5931HEEP*
20 QSOP
The load is disconnected in the event of a fault condi-
tion. The MAX5930/MAX5931 fault-management mode
is selectable, allowing latched fault or autoretry after a
fault condition.
20 QSOP
*Future product—contact factory for availability.
Selector Guide and Typical Operating Circuit appear at end
of data sheet.
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 cur-
rent 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.
Pin Configurations
TOP VIEW
POL
ON2
1
2
3
4
5
6
7
8
9
24 MODE
23 ON3
ON1
22 LIM2
21 IN2
LIM1
MAX5930
IN1
20 SENSE2
19 GATE2
18 LIM3
17 IN3
SENSE1
GATE1
STAT1
STAT2
The MAX5930 is available in a 24-pin QSOP package,
and the MAX5931 is available in a 20-pin QSOP pack-
age. All devices are specified over the extended -40°C
to +85°C temperature range.
16 SENSE3
15 GATE3
14 GND
13 BIAS
TIM 10
LATCH 11
STAT3 12
Applications
Network Switches, Routers, Power-Supply
Hubs
Sequencing/Tracking
Hot Plug-In Daughter Cards Base-Station Line Cards
QSOP
RAID
Portable Computer Device
Bays (Docking Stations)
Pin Configurations continued at end of data sheet.
Solid-State Circuit Breakers
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
5秒后页面跳转
塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
英特尔震撼发布：128核心256线程的至强6性能核处理器
SK海力士量产12层HBM3E，容量高达36GB
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
