MAX5909EEE Maxim Integrated Products, MAX5909EEE Datasheet

no-image

MAX5909EEE

Manufacturer Part Number
MAX5909EEE
Description
Hot Swap & Power Distribution
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5909EEE

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX5904–MAX5909 dual hot-swap controllers
provide complete protection for dual-supply systems.
These devices hot swap two supplies ranging from +1V
to +13.2V, provided one supply is at or above 2.7V,
allowing the safe insertion and removal of circuit cards
into live backplanes.
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 col-
lapse the backplane power supply leading to a system
reset. The MAX5904 family of hot-swap controllers pre-
vents 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 completed, two on-chip
comparators provide VariableSpeed/BiLevel™ protec-
tion against short-circuit and overcurrent faults, as well
as immunity against system noise and load transients. In
the event of a fault condition, the load is disconnected.
The MAX5905/MAX5907/MAX5909 must be unlatched
after a fault, and the MAX5904/MAX5906/MAX5908 auto-
matically restart after a fault.
The MAX5904 family offers a variety of options to reduce
component count and design time. All devices integrate
an on-board charge pump to drive the gates of low-cost,
external n-channel MOSFETs. The devices offer integrat-
ed features like startup current regulation and current
glitch protection to eliminate external timing resistors and
capacitors. The MAX5906–MAX5909 provide an open-
drain status output, an adjustable startup timer, an
adjustable current limit, an uncommitted comparator,
and output undervoltage/overvoltage monitoring.
The MAX5904/MAX5905 are available in 8-pin SO pack-
ages. The MAX5906–MAX5909 are available in space-
saving 16-pin QSOP packages.
19-2238; Rev 3; 9/05
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
PCI-Express is a registered trademark of PCI-SIG Corp.
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.
Low-Voltage, Dual Hot-Swap Controllers/Power
PCI-Express
Basestation Line Cards
Network Switches or Routers
Solid-State Circuit Breaker
Power-Supply Sequencing
Hot Plug-In Daughter Cards
RAID
________________________________________________________________ Maxim Integrated Products
®
Applications
General Description
Applications
♦ Safe Hot-Swap for +1V to +13.2V Power
♦ Low 25mV Default Current-Limit Threshold
♦ Inrush Current Regulated at Startup
♦ Circuit Breaker Function
♦ Adjustable Circuit Breaker/Current-Limit
♦ VariableSpeed/BiLevel Circuit-Breaker Response
♦ Autoretry or Latched Fault Management
♦ On/Off Sequence Programming
♦ Status Output Indicates Fault/Safe Condition
♦ Output Undervoltage and Overvoltage Monitoring
*Contact factory for availability.
Selector Guide and Typical Operating Circuits appear at end
of data sheet.
MAX5904ESA*
MAX5904USA
MAX5905ESA*
MAX5905USA
MAX5906EEE*
MAX5906UEE
MAX5907EEE*
MAX5907UEE
MAX5908EEE*
MAX5908UEE
MAX5909EEE*
MAX5909UEE
Pin Configurations continued at end of data sheet.
Supplies
Threshold
and/or Protection
TOP VIEW
PART
Requires One Input ≥ 2.7V
SENSE1
GATE1
GND
IN1
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
0°C to +85°C
0°C to +85°C
0°C to +85°C
0°C to +85°C
0°C to +85°C
0°C to +85°C
1
2
4
3
Ordering Information
NARROW SO
MAX5904
MAX5905
Pin Configurations
Sequencers
6
8
7
5
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
PACKAGE
PIN-
8 SO
8 SO
8 SO
8 SO
IN2
SENSE2
GATE2
ON
Features
CODE
E16-1
E16-1
E16-1
E16-1
E16-1
E16-1
E16-1
E16-1
PKG
S8-4
S8-4
S8-4
S8-4
1

Related parts for MAX5909EEE

MAX5909EEE Summary of contents

Page 1

... PART MAX5904ESA* MAX5904USA MAX5905ESA* MAX5905USA MAX5906EEE* MAX5906UEE MAX5907EEE* MAX5907UEE MAX5908EEE* MAX5908UEE MAX5909EEE* MAX5909UEE *Contact factory for availability. Applications TOP VIEW Pin Configurations continued at end of data sheet. Selector Guide and Typical Operating Circuits appear at end of data sheet. Sequencers Features Ordering Information PIN- ...

Page 2

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers ABSOLUTE MAXIMUM RATINGS IN_ to GND...........................................................................+14V GATE_ to GND..........................................+0. ON, PGOOD, COMP+, COMPOUT, TIM to GND.....-0.3V to the higher 0.3V) and (V IN1 SENSE_, MON_, LIM_ to GND ...................-0.3V to ...

Page 3

Low-Voltage, Dual Hot-Swap Controllers/Power ELECTRICAL CHARACTERISTICS (continued +1V to +13.2V provided at least one supply is higher than +2.7V Typical values are +5V, V IN1 IN2 PARAMETER SYMBOL V Channel 1 ON ...

Page 4

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers ELECTRICAL CHARACTERISTICS ( +1V to +13.2V provided at least one supply is higher than +2.7V Typical values are +5V +3.3V, and T IN1 IN2 PARAMETER SYMBOL ...

Page 5

Low-Voltage, Dual Hot-Swap Controllers/Power ELECTRICAL CHARACTERISTICS (continued +1V to +13.2V provided at least one supply is higher than +2.7V Typical values are +5V, V IN1 IN2 PARAMETER SYMBOL ON Input Bias Current ...

Page 6

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers (Typical Operating Circuits Fairchild FDB7090L and 2 are identical in performance. Where characteristics are interchangeable, channels 1 and 2 are referred and Y.) SUPPLY CURRENT vs. ...

Page 7

Low-Voltage, Dual Hot-Swap Controllers/Power (Typical Operating Circuits Fairchild FDB7090L and 2 are identical in performance. Where characteristics are interchangeable, channels 1 and 2 are referred and Y.) GATE STRONG DISCHARGE CURRENT ...

Page 8

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers (Typical Operating Circuits Fairchild FDB7090L and 2 are identical in performance. Where characteristics are interchangeable, channels 1 and 2 are referred and Y.) STARTUP WAVEFORMS SLOW ...

Page 9

Low-Voltage, Dual Hot-Swap Controllers/Power PIN NAME MAX5904/ MAX5906– MAX5905 MAX5909 — 10 LIM2 GATE2 7 13 SENSE2 8 14 IN2 — 15 INC+ — 16 OUTC Detailed Description The MAX5904–MAX5909 are circuit breaker ICs for ...

Page 10

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers Figure 1. MAX5906–MAX5909 Functional Diagram 10 ______________________________________________________________________________________ ...

Page 11

Low-Voltage, Dual Hot-Swap Controllers/Power ON PGOOD START PGDLY 4. GATE V OUT V SU,TH R SENSE I LOAD t ON Figure 2. Startup Waveforms Slow-Comparator Startup Period The slow comparator is disabled ...

Page 12

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers V ON_,TH Figure 3. Power-Up with ON Pin Control (At Least One V 12 ______________________________________________________________________________________ t START t PGDLY is > IN_ UVLO Timing Diagrams GATE_ V OUT_ INTERNAL SIGNAL ...

Page 13

Low-Voltage, Dual Hot-Swap Controllers/Power OVERCURRENT CONDITION ≥ AND IN_ SENSE_ SC_TH < IN_ SENSE_ FC_TH Figure 4. Power-Down when an Overcurrent Fault Occurs SHORT-CIRCUIT CONDITION ≥ ...

Page 14

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers UV/OV CONDITION Figure 6. Power-Down when an Undervoltage/Overvoltage Fault Occurs (MAX5906/MAX5907) UV/OV CONDITION Figure 7. Fault Report when an Undervoltage/Overvoltage Fault Occurs (MAX5908/MAX5909) 14 ______________________________________________________________________________________ Timing Diagrams (continued) MON_ GLITCH FILTER, 20µS DISCHARGE RATE DEPENDS ...

Page 15

Low-Voltage, Dual Hot-Swap Controllers/Power V UVLO t D,UVLO Figure 8. Power-Up with Undervoltage Lockout Delay (V ______________________________________________________________________________________ Timing Diagrams (continued) t START t PGDLY = 2.7V, the Other V is Below V ON IN_ UVLO Sequencers V IN_ V GATE_ ...

Page 16

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers Output Voltage Monitor The MAX5905–MAX5909 monitor the output voltages with the MON1 and MON2 window comparator inputs. These voltage monitors are enabled after the startup period. Once enabled, the voltage monitor detects a fault if ...

Page 17

Low-Voltage, Dual Hot-Swap Controllers/Power Table 2. Recommended n-Channel MOSFETs PART NUMBER MANUFACTURER IRF7413 International IRF7401 Rectifier IRL3502S MMSF3300 Motorola MMSF5N02H MTB60N05H FDS6670A NDS8426A Fairchild FDB8030L slow-comparator threshold is beneficial when operating with supply rails down to 1V because it allows ...

Page 18

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers Q is the MOSFET total gate charge GATE I is the gate charging/discharging current GATE In this case, the inrush current depends on the MOSFET gate-to-drain capacitance (C ) plus any additional rss capacitance from ...

Page 19

Low-Voltage, Dual Hot-Swap Controllers/Power SLOW COMPARATOR 3ms 110µs 260ns V SC, SENSE VOLTAGE ( SENSE Figure 9. VariableSpeed/BiLevel Response R SENSE PULLUP IN SENSE MAX5906 PGOOD MAX5907 MAX5908 MAX5909 * ON ...

Page 20

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers OFF GND Figure 11. Power Sequencing: Channel 2 Turns On t MAX5909 close to the card’s connector. Use a ground plane to minimize impedance and inductance. ...

Page 21

... OPTIONAL COMPONENTS (SEE THE ON COMPARATOR SECTION). Figure 13. Using the MAX5904–MAX5909 on a Backplane PART MAX5904ESA/MAX5904USA MAX5905ESA/MAX5905USA MAX5906EEE/MAX5906UEE MAX5907EEE/MAX5907UEE MAX5908EEE/MAX5908UEE MAX5909EEE/MAX5909UEE ______________________________________________________________________________________ µP RESET Figure 14. Kelvin Connection for the Current-Sense Resistors REMOVABLE CARD WITH NO HOT-INSERTION Pin Configurations (continued) PROJECTION V OUT TOP VIEW ...

Page 22

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers BACKPLANE REMOVABLE CARD GND V 2 BACKPLANE REMOVABLE CARD STAT GND V 2 *OPTIONAL COMPONENTS 22 ______________________________________________________________________________________ R SENSE1 0.1µF IN1 SENSE1 * ON * MAX5904 MAX5905 GND ...

Page 23

Low-Voltage, Dual Hot-Swap Controllers/Power (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW ______________________________________________________________________________________ E H ...

Page 24

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Package Information (continued) ...

Related keywords