IXYS IXHQ100SI, IXHQ100PI Datasheet

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1:03 51

Negative Voltage Hot Swap Controller

with Active Power Filter

Features

 Live Insertion and Removal Power Manager
 Adjustable Power-on slew rate
 Autodetect of Load Open Circuit or -VIN

Disconnection
 Controlled Time-Delay
 Operates from 9 V to External MOSFET Voltage

Limit
 Fault Indication Output (microprocessor reset).
 Board Insertion/Removal Detector Input
 Protection During Turn-On
 Low frequency Power Active Filter
 Adjustable Electronic Circuit Breaker
Vin undervoltage with GSNSin input

Applications

 Arcless card insertion and removal
 Central Office Switching Hardware
 Circuit Boards From -48 V Distributed Power

Supplies
 Circuit Board Power Manager and Noise Filter
 Circuit Board Hot Swap Protector and Manager
 Electronic Circuit Breaker
 Wireless Local Loop Antennas
 Cable TV Antenna

Description

The IXHQ100 is a live insertion and removal hot swap
controller with a built-in power noise filter. It incorpo­rates all the active circuitry necessary to protect circuit
boards during live insertion or removal (insertion or
removal when the system power is active). Additionally,
the IXHQ100 incorporates two unique features: power
active filter for powerline noise suppression and power
auto-disconnect detector which eliminates the need of
additional staggered pins.

The IXHQ100 shunt regulator ensures a wide operating
voltage range (with the external MOSFET breakdown
voltage as limit). The active power filter reduces power
source output impedance, producing "clean" load
power. The IXHQ100 allows continuous load current
rise adjustments, presettable maximum current limits,
and user selectable fault indication turn off times for
resetting µPs and other synchronous board level sys-
tems. For added flexibility, GSNSin pin is available to
implement either circuit board insertion/removal detec­tion or ground detection.

US Patents Pending.

Typical Application with Auto-Disconnect Detector

CAUTION: These devices are
sensitvie to electrostatic discharge;
take caution when handling and
assembling this component.

Figure 1Figure 1

Figure 1

Figure 1Figure 1

IXYS reserves the right to change limits, test conditions and dimensions.

Copyright © IXYS CORPORATION 2000

www.ixys.com 98716 (08/14/00)

1

Absolute Maximum RatingsAbsolute Maximum Ratings

Absolute Maximum Ratings

Absolute Maximum RatingsAbsolute Maximum Ratings

Symbol Symbol

Symbol

Symbol Symbol

Definition Definition

Definition

Definition Definition

Max. Rating Max. Rating

Max. Rating

Max. Rating Max. Rating

Pin DescriptionPin Description

Pin Description

Pin DescriptionPin Description

IXHQ 100PI

IXHQ 100SI

VCC-V

AGND

Voltage applied V

to AGND Shunt Off: -0.3 V to 16 V

CCin

Shunt On: -0.3 V to 14 V
Shunt On for 10 seconds 14V to 16 V
All other pins except V

I

VDD

T

JM

T

J0

T

stg

I

DD

Electrical CharacteristicsElectrical Characteristics

Electrical Characteristics

Electrical CharacteristicsElectrical Characteristics

Unless otherwise noted, TA = 25 oC; -VIN= 48 V, AGND connected to -VIN, V
with respect to AGND. IXHQ100 configured as described in

SymbolSymbol

Symbol

SymbolSymbol

I

CC

VDD Load Current 60 mA
Maximum Junction Temperature 125 oC
Operating Temperature Range -40 oC to 85 oC
Storage Temperature Range -40 oC to 150 oC
Supply Current with Shunt On 25 mA

Parameter Parameter

Parameter

Parameter Parameter

Supply current VCC=12 V, V

DC

-0.3 V to V

Test Conditions

Test ConditionsTest Conditions

Test Conditions

Test ConditionsTest Conditions

SHUNToff

all outputs unloaded.

V

CCSHUNT

V

shunt regulation ICC forced to 10 mA 12 13.8 16 V

CC

voltage when shunt is off

V

THSHUNToff

SHUNToff input VCC = 15 V, monitor RST
threshold voltage

I

SHUNToff

SHUNToff input -1 0 1 µA
bias current

V

THINV

INV input VCC = 12 V, monitor RST
threshold voltage

R

INV

INV input 70 130 180 KΩ
resistance

V

THGSNS

GSNS sense input VCC = 12 V, monitor RST
threshold voltage

I

GSNSin

GSNSin input -2.6 -2.3 -2 µA
bias current

I

CAPin

V
R

VDROP

VDROP

CAPin input bias current -1 0 1 µA
Active filter offset voltage 0.7 0.9 1.1 V
V

input resistance 50 70 90 KΩ

DROP

+ 0.3 V

CCin

SHUNToff

.

= 5 V, V

= 12 V, V

CC

= 12 V. All voltage measurements

GSNSin

MinMin

Min

MinMin

TypTyp

Typ

TypTyp

MaxMax

Max

MaxMax

Units Units

Units

Units Units

= VCC,23mA

OUT

OUT

OUT

1 1.5 2 V

6810V

4.5 5.8 6 V

I

SLOPE

R

SLOPEDCHG

I

OFFTM

R

OFFTMCHG

V

THOFFTM

V

CL

SLOPE capacitor V
charging current V

SLOPE capacitor V
discharge resistance V

OFFTM capacitor V
charging current V

= 5 V, V

OFFTM

= 5 V

CAPin

= 5 V, IVT = V

DROP

= 0 V, V

SOURCE

= 5 V, V

DROP

= 5 V

CAPin

= 0 V 70 85 110 mA

GSOURCE

CC

= 5 V

CAPin

= 0 V 80 100 120 mA

SOURCE

90 200 Ω

OFFTM capacitor 111 200 Ω
discharge resistance

OFFTM input threshold OFFTM input voltage when SLOPE 3.8 4.5 5.5 V
voltage input voltage starts its ramp

Overcurrent threshold bias voltage 90 125 150 mV

2

Electrical Characteristics Electrical Characteristics

Electrical Characteristics (continued)

Electrical Characteristics Electrical Characteristics

SymbolSymbol

Symbol

SymbolSymbol

Parameter Parameter

Parameter

Parameter Parameter

Test ConditionsTest Conditions

Test Conditions

Test ConditionsTest Conditions

MinMin

Min

MinMin

IXHQ 100PI

IXHQ 100SI

TypTyp

Typ

TypTyp

MaxMax

Max

MaxMax

Units Units

Units

Units Units

R

VCL

t

OC

VCL bias resistance 4 6 10 kΩ
Overcurrent detection V

to GATE output delay V

= 0 V; V

CAPin

input is a step at t = 0s

SOURCE

OUTsns

= 5 V 20 30 ms

from 0 V to 200 mV

dv

/dt GATE output slew rate C

GATE

V

GATE

Maximum GATE V
output voltage V

I

GATE

I

GATE

GATE pull-up current Gate drive on, V
GATE pull-down Gate drive off 10 20 mA

current V

V

DD

VDD regulator output 3.3K Resistive load 5 5.75 6.5 V

= 100 nF 0.5 0.8 1.1 V/ms

SLOPE

CAPin

OUTsns

GATE

= 0 V; R

= 5 V

= 10 V

= 10 KΩ 13.8 15 V

load

= 0 V -15 -10 mA

GATE

Voltage between VDD output and AGND

I

RSTout

t

RST

V

ad

RSTout drive current Force V

=1 V during fault condition 2.4 3 3.6 mA

RSTout

RST pulse width 200 500 1000 ns
Auto-Detect threshold Gate drive on; ramp V

; monitor -10 12 20 mV

OUTsns

RST until it pulses.

Note 1: Operating the device beyond parameters with listed “absolute maximum ratings” may cause permanent damage to the
device. Typical values indicate conditions for which the device is intended to be functional, but do not guarantee specific
performance limits. The guaranteed specifications apply only for the test conditions listed. Exposure to absolute maximum
rated conditions for extended periods may affect device reliability.

Note2: All voltages are relative to ground unless otherwise specified.

Typical Performance CharacteristicsTypical Performance Characteristics

Typical Performance Characteristics

Typical Performance CharacteristicsTypical Performance Characteristics

Graph 1: Icc vs. TemperatureGraph 1: Icc vs. Temperature

Graph 1: Icc vs. Temperature

Graph 1: Icc vs. TemperatureGraph 1: Icc vs. Temperature

2.18

2.16

2.14

2.12

2.10

2.08

2.06

Icc (mA)

2.04

2.02

2.00

1.98

1.96

-60 -40 -20 0 20 40 60 80 100

Temperature (oC)

Graph 2: Regulator Output Voltage vs. TemperatureGraph 2: Regulator Output Voltage vs. Temperature

Graph 2: Regulator Output Voltage vs. Temperature

Graph 2: Regulator Output Voltage vs. TemperatureGraph 2: Regulator Output Voltage vs. Temperature

6.0

5.9

5.8

5.7

5.6

5.5

Regulator Output Voltage (V)

5.4

-60 -40 -20 0 20 40 60 80 100

Temperature (oC)

3