ISL6140 Просмотр технического описания (PDF) - Renesas Electronics
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ISL6140 Datasheet PDF : 20 Pages
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DATASHEET
ISL6140, ISL6150
Negative Voltage Hot Plug Controller
The ISL6140 is an 8 Ld, negative voltage hot plug
controller that allows a board to be safely inserted and
removed from a live backplane. Inrush current is
limited to a programmable value by controlling the
gate voltage of an external N-channel pass transistor.
The pass transistor is turned off if the input voltage is
less than the undervoltage threshold, or greater than
the overvoltage threshold. A programmable electronic
circuit breaker protects the system against shorts. The
active low PWRGD signal can be used to directly enable
a power module (with a low enable input)
The ISL6150 is the same part, but with an active high
PWRGD signal.
FN9039
Rev 5.00
December 3, 2015
Features
• Low Side External NFET Switch
• Operates from -10V to -80V (-100V absolute max
rating) or +10V to +80V (+100V absolute max
rating)
• Programmable Inrush Current
• Programmable Electronic Circuit Breaker
(overcurrent shutdown)
• Programmable Overvoltage Protection
• Programmable Undervoltage Lockout
• Power Good Control Output
- PWRGD Active High: (H Version) ISL6150
- PWRGD active Low: (L Version) ISL6140
• Pb-free available (RoHS compliant)
Applications
• VoIP (Voice over Internet Protocol) Servers
• Telecom systems at -48V
• Negative Power Supply Control
• +24V Wireless Base Station Power
Related Literature
• ISL6140/50EVAL1 Board Set, AN9967
• ISL6116 Hot Plug Controller, FN9100
NOTE: See www.intersil.com/hotplug for more information.
Typical Application
GND
GND
NOTE: (RL and CL are the Load)
R4
UV
VDD
R5
ISL6140
OV
R6
VEE SENSE GATE
C1 R2 R3
-48V IN
R1
Q1
PWRGD
DRAIN
(LOAD)
C2
CL
RL
-48VOUT
R5 = 9.09k (1%)
R6 = 10k (1%)
C1 = 150nF (25V)
R2 = 10 (5%)
R3 = 18k (5%)
R4 = 562k (1%)
C2 = 3.3nF (100V)
Q1 = IRF530 (100V, 17A, 0.11)
R1 = 0.02 (1%)
CL = 100µF (100V)
FN9039 Rev 5.00
December 3, 2015
Page 1 of 20
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