DS4560LS-AR+ Maxim Integrated Products, DS4560LS-AR+ Datasheet

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DS4560LS-AR+

Manufacturer Part Number
DS4560LS-AR+
Description
Hot Swap & Power Distribution
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS4560LS-AR+

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The DS4560 is a self-contained hot-plug switch intend-
ed to be used on +12V power buses to limit through
current and to control the power-up output-voltage
ramp. The device contains an on-board 25mΩ n-chan-
nel power MOSFET that is actively closed-loop con-
trolled to ensure that an adjustable current limit is not
exceeded. The maximum allowable current through the
device is determined by an external resistor connected
to the ILIM pin.
The DS4560 also contains the ability to control the
power-up output-voltage ramp. A capacitor connected
to the VRAMP pin sets the desired voltage ramp rate.
The output voltage is unconditionally clamped to keep
input overvoltage stresses from harming the load. The
DS4560 also contains an adjustable power-up timer. A
capacitor connected to the TIMER pin determines how
long after power-on reset the DS4560 should wait
before starting to apply power to the load. The TIMER
pin can also be driven with a digital logic output to cre-
ate a device-enable function.
The DS4560 contains an on-board temperature sensor
with hysteresis. If operating conditions cause the
device to exceed an internal thermal limit, the DS4560
either unconditionally shuts down and latches off await-
ing a power-on reset (DS4560S-LO), or it waits until the
device has cooled by the hysteresis amount and then
restarts (DS4560S-AR).
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
19-4619; Rev 2; 5/09
PCI Express is a registered trademark of PCI-SIG Corp.
InfiniBand is a trademark and service mark of the InfiniBand Trade Association.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
DS4560S-LO+
DS4560S-LO+T
DS4560S-AR+
DS4560S-AR+T
PART
RAID/Hard Drives
Servers/Routers
PCI/PCI Express
________________________________________________________________ Maxim Integrated Products
SHUTDOWN
Ordering Information
THERMAL
Autoretry
Autoretry
®
General Description
Latchoff
Latchoff
InfiniBand
Base Stations
Applications
SM
PIN-PACKAGE
8 SO
8 SO
8 SO
8 SO
♦ On-Board 25mΩ Power MOSFET
♦ Adjustable Short-Circuit Current and Overload
♦ Adjustable Output-Voltage Slew Rate
♦ Adjustable Power-Up Timer with External Enable
♦ Output Overvoltage Limiting
♦ On-Board Thermal Protection
♦ On-Board Charge Pump
♦ Latchoff and Autoretry Versions Available
♦ 9.0V to 13.2V Supply Operation
♦ 8-Pin SO (150 mils) Pb-Free Package
♦ UL Certification Record E211395
5, 6, 7
PIN
Current Limit
Capability
1
2
3
4
8
12V Hot-Plug Switch
VRAMP
NAME
TIMER
LOAD
GND
ILIM
V
VRAMP
TOP VIEW
TIMER
CC
GND
ILIM
Ground. This is also a heat sink for the
device.
Output-Voltage Ramp Adjustment
Power-Up Timer/Enable
Current-Limit Adjustment
Output Load Connection (MOSFET Source)
Input Supply Voltage (MOSFET Drain)
1
2
3
4
SO (150 mils)
+
DS4560
Pin Configuration
Pin Description
FUNCTION
8
7
6
5
V
LOAD
LOAD
LOAD
CC
Features
1

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DS4560LS-AR+ Summary of contents

Page 1

... T = Tape and reel. PCI Express is a registered trademark of PCI-SIG Corp. InfiniBand is a trademark and service mark of the InfiniBand Trade Association. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 12V Hot-Plug Switch ♦ ...

Page 2

Hot-Plug Switch ABSOLUTE MAXIMUM RATINGS Voltage Range on V and LOAD Relative to GND CC Continuous .........................................................-0.3V to +18V 1ms Maximum ....................................................-0.3V to +22V Voltage Range on ILIM and VRAMP Relative to GND.....................................-0. Voltage Range on TIMER ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +12V +25°C, unless otherwise noted PARAMETER SYMBOL Short-Circuit Limit Overload Limit LOAD Voltage Slew Rate SR VRAMP Charging Current I VRAMP Note 1: All voltages are referenced to ground. Currents entering ...

Page 4

Hot-Plug Switch (V = 12V +25° 56Ω ILIM TURN-ON WAVEFORMS 10Ω RESISTIVE LOAD V CC 2V/div 0V LOAD CURRENT 500mA/div 0mA 5ms/div TURN-ON WAVEFORMS V = 18V, 10Ω RESISTIVE LOAD CC V ...

Page 5

UVLO +5V VREG CHARGE PUMP DS4560 +5V 80μA THERMAL LIMIT EXTERNAL DISABLE Detailed Description The DS4560 begins to operate when V undervoltage lockout level, V UVLOR enable circuit and TIMER pin become active. Once the device has been enabled, a ...

Page 6

Hot-Plug Switch The voltage level of the TIMER pin is compared to an internal source (see the Block Diagram) . When the level on the pin exceeds V , the comparator outputs a low ON level. This then turns ...

Page 7

Latchoff Version (DS4560S-LO) Once the latchoff version has entered thermal shut- down, it does not attempt to turn back on. The only way to turn this device back cycle the power to the device. When power is ...

Page 8

... 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. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION ) maximum specification from “ ...

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