ISL6142IBZA Intersil, ISL6142IBZA Datasheet

IC CTRLR HOT PLUG NEG 14-SOIC

ISL6142IBZA

Manufacturer Part Number
ISL6142IBZA
Description
IC CTRLR HOT PLUG NEG 14-SOIC
Manufacturer
Intersil
Type
Hot-Swap Controllerr
Datasheet

Specifications of ISL6142IBZA

Applications
General Purpose, VoIP
Internal Switch(s)
No
Voltage - Supply
36 V ~ 72 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Negative Voltage Hot Plug Controller
The ISL6142/52 are 14 pin, negative voltage hot plug controllers
that allow 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 Under-Voltage threshold, or greater than the Over-
Voltage threshold. The PWRGD/PWRGD outputs can be used to
directly enable a power module. When the Gate and DRAIN
voltages are both considered good the output is latched in the
active state.
The IntelliTrip
current limit features protect the system against short circuits.
When the Over-Current threshold is exceeded, the output current
is limited for a time-out period before the circuit breaker trips and
shuts down the FET. The time-out period is programmable with an
external capacitor connected to the CT pin. If the fault disappears
before the programmed time-out, normal operation resumes. In
addition, the IntelliTrip
Fault shutdown, with a threshold set at 4 times the Over-Current
trip point. When activated, the GATE is immediately turned off and
then slowly turned back on for a single retry.
The IS+, IS-, and IS
monitor feature that presents a scaled version of the load current
at the IS
by placing a resistor (R9) from IS
Related Literature
• ISL6142/52EVAL1 Board Set, Document AN1000
• ISL6140/50EVAL1 Board Set, Document AN9967
• ISL6140/41EVAL1 Board Set, Document AN1020
• ISL6141/51 Hot Plug Controller, Document FN9079
• ISL6141/51 Hot Plug Controller, Document FN9039
• ISL6116 Hot Plug Controller, Document FN4778
NOTE: See www.intersil.com/hotplug for more information.
Pinout
OUT
TM
pin. Current to voltage conversion is accomplished
PWRGD/PWRGD 1
ISL6142 OR ISL6152 (14 LEAD SOIC)
electronic circuit breaker and programmable
FAULT
OUT
V
DIS
OV
UV
IS-
EE
TM
2
3
4
5
6
7
electronic circuit breaker has a fast Hard
pins combine to provide a load current
ISL6142/52
Top View
®
OUT
1
11 DRAIN
14
13
12
10
9 IS+
8 SENSE
V
CT
IS
GATE
to the negative input (-48V).
DD
OUT
Data Sheet
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Typical Application
Features
• Operates from -20V to -80V (-100V Absolute Max Rating)
• Programmable Inrush Current
• Programmable Time-Out
• Programmable Current Limit
• Programmable Over-Voltage Protection
• Programmable Under-Voltage Protection
• V
• IntelliTrip
• FAULT pin reports the occurrence of an Over-Current Time-Out
• Disable input controls GATE shutdown and resets Over-Current
• Load Current Monitor Function
• Power Good Control Output
• Pb-free available
Applications
• VoIP (Voice over Internet Protocol) Servers
• Telecom systems at -48V
• Negative Power Supply Control
• +24V Wireless Base Station Power
R1 = 0.02Ω (1%)
R2 = 10Ω (5%)
R3 = 18KΩ (5%)
R4 = 549KΩ (1%)
R5 = 6.49KΩ (1%)
- 135 mV of hysteresis ~4.7V of hysteresis at the power supply
severe and moderate faults
- Fast shutdown for short circuit faults with a single retry (fault
fault latch
- IS
- A resistor from IS
- Output latched “good” when DRAIN and GATE voltage
- (PWRGD active low: ISL6142 (L version)
- PWRGD active high: ISL6152 (H version)
R10
Supply
DD
Logic
current > 4X current limit value).
conversion
thresholds are met.
OUT
Under-Voltage Lock-Out (UVLO) ~ 16.5V
-48V IN
|
TM
Intersil and Design is a registered trademark of Intersil Americas Inc.
provides a scaled version of the load current
Copyright © Intersil Americas Inc. 2002, 2004, All Rights Reserved
July 2004
R4
R5
R6
R9
Electronic Circuit Breaker distinguishes between
GND
FAULT
UV
OV
CT
DIS
IS
OUT
C3
R6 = 10KΩ (1%)
R7 = R8 = 400Ω (1%)
R9 = 4.99KΩ (1%)
R10 = 5.1KΩ (10%)
C1 = 150nF (25V)
V
EE
OUT
Intellitrip™ is a trademark of Intersil Americas Inc.
ISL6142, ISL6152
IS-
R7
R1
ISL6142/ISL6152
to -V
IS+
R8
V
DD
SENSE GATE
IN
provides current to voltage
C1
Q1
C2 = 3.3nF (100V)
C3 = 1500pF (25V)
Q1 = IRF530
CL = 100uF (100V)
RL = Equivalent load
R2
R3 C2
PWRGD
PWRGD
DRAIN
FN9086.1
GND
-48V OUT
CL
RL
LOAD

Related parts for ISL6142IBZA

ISL6142IBZA Summary of contents

Page 1

... OUT to -V provides current to voltage OUT IN conversion thresholds are met. | Intersil and Design is a registered trademark of Intersil Americas Inc. Intellitrip™ trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002, 2004, All Rights Reserved FN9086.1 GND LOAD CL RL -48V OUT ...

Page 2

... ISL6142CBZA (See Note) ISL6152CB ISL6152CBZA (See Note) ISL6142IB - ISL6142IBZA - (See Note) ISL6152IB - ISL6152IBZA - (See Note) *Add “-T” suffix to part number for tape and reel packaging. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations ...

Page 3

ISL6142, ISL6152 Block Diagram GND LOGIC SUPPLY R10 FAULT V EE DIS LOGIC INPUT V EE+ CURRENT SENSE IS OUT TO ADC V IS -48V IN ...

Page 4

Pin Descriptions PWRGD (ISL6142; L Version) Pin 1 - This digital output is an open-drain pull-down device and can be used to directly enable an external module. During start-up the DRAIN and GATE voltages are monitored with two separate comparators. ...

Page 5

V Pin 7 - This is the most Negative Supply Voltage, such -48V system. Most of the other signals are referenced relative to this pin, even though it may be far away from what is considered ...

Page 6

Absolute Maximum Ratings Supply Voltage ( -0.3V to 100V DD EE DRAIN, PWRGD, PWRGD Voltage . . ...

Page 7

Electrical Specifications V = +48V Commercial (0 PARAMETER UV Pin Input Current OV pin OV Pin High Threshold Voltage OV Pin Low Threshold Voltage OV Pin Hysteresis OV Pin Input Current DRAIN Pin Power Good Threshold (Enable PWRGD/PWRGD ...

Page 8

Electrical Specifications V = +48V Commercial (0 PARAMETER AC TIMING OV High to GATE Low OV Low to GATE High UV Low to GATE Low UV High to GATE High DIS Low to GATE Low DIS High to ...

Page 9

Test Circuit and Timing Diagrams PWRGD 1 FAULT 2 V DIS 3 V ISL6142 400Ω FIGURE 2A. TYPICAL TEST CIRCUIT 2V 1.255V 0V t ...

Page 10

Test Circuit and Timing Diagrams V 8. DRAIN DRAIN 1.0V PWRGD FIGURE 6A. DRAIN HIGH TO PWRGD (INACTIVE) HIGH (ISL6142) 3V DIS 1.50V PHLDIS PLHDIS GATE 13. ...

Page 11

Typical Performance Curves 4.5 4 3.5 3 2.5 2 1 Supply Voltage (VDD) FIGURE 13. SUPPLY CURRENT VS. SUPPLY VOLTAGE (25 2.75 2.7 2.65 2.6 2.55 2.5 2.45 2.4 2.35 2.3 ...

Page 12

Temperature (C) FIGURE 19. GATE PULL-DOWN CURRENT (UV/OV/TIME-OUT) VS TEMPERATURE -40 - Temperature (C) ...

Page 13

SENSE Pin Voltage (mV) FIGURE 25. IS ERROR VS SENSE PIN VOLTAGE OUT VSENSE = 0V 4.475 4.47 4.465 4.46 4.455 4.45 4.445 4.44 4.435 -40 - Temperature ...

Page 14

Applications Information GND Logic Supply R10 ADC Q2 -48V IN FIGURE 29. TYPICAL APPLICATION WITH MINIMUM COMPONENTS Typical Values for a representative system; which assumes: 43V to 71V supply range; 48 nominal 43V 71V 1A of ...

Page 15

The values 549K 6.49K, and R6 = 10K shown in figure 29 set the Under-Voltage threshold at 43V, and the Over-Voltage, turn off threshold to 71V. The Under-Voltage (UV) comparator has a hysteresis of 135mv’s ...

Page 16

C1 and R3 prevent Q1 from turning on momentarily when power is first applied. Without them, C2 would pull the gate voltage roughly equal to V (where Cgs is the FET gate-source capacitance) before the ...

Page 17

GND. Inrush Current Control The primary function of the ISL6142/52 hot plug controller is to control the inrush current. When a board is plugged into a live backplane, the input capacitors ...

Page 18

Over-Current threshold of 50mV. If the hard fault comparator trip point is exceeded, a hard pull down current (350mA) is enabled to quickly pull down the GATE and momentarily turn off the FET. The fast shutdown ...

Page 19

This also allows the user adjust or trim either trip point independently. Some applications employ a short pin ground ...

Page 20

FET is on, and the DRAIN and V are almost the same voltage). EE When any of the 5 conditions occur that turn off the GATE, the Q3 DMOS turns off, and the resistor and ...

Page 21

The switch SW1 is shown as a simple push button. It can be replaced by an active switch, such as an NPN or NFET; the principle is the same; pull the UV node below its trip point, and then release ...

Page 22

BOM (Bill Of Materials 0.02Ω (5%) R2 =10.0Ω (5 18.0KΩ (10 549KΩ (1 6.49KΩ (1 10.0KΩ (1 400Ω (1%) GND -48V IN +5V R10 1 PG ...

Page 23

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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