intersil ISL5571A DATA SHEET

®

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ISL5571A

Data Sheet July 2004

Access High Voltage Switch

The ISL5571A is a solid state device designed to replace the
electromechanical relay used on Subscriber Line Cards. The
device contains two Line Break MOSFET switches, one Ring
Return MOSFET switch and one Ring Access SCR switch.

The ISL5571A is pin-for-pin compatible with the Lucent
L7581AAE LCAS and Clare CPCL7581A Products.
Improvements include: line break switches r

match (0.5Ω

ON

Max) higher dV/dt sensitivity (5000V/µs), protection SCR
hold current set to 110mA.

The line break MOSFETs have very low on resistance
(<16.0Ω Typ) and Ron match (<0.05Ω Typ, 0.5Ω Max) and a
blocking voltage >330V. The Ring Return MOSFET has a
typical Ron of 50Ω and a blocking voltage >330V. The
Ringing Access switch is implemented with a SCR device
with a blocking voltage >480V. The SCR switch inherently
offers low EMI connect and disconnect circuitry. All control
I/Os use TTL thresholds making the device compatible with
3V logic.

The ISL5571A also includes on-chip protection in the form of
an over-voltage clamping circuit, current-limited MOSFET
switches, and thermal shutdown circuitry. The over-voltage
clamping circuit consists of a diode bridge and SCR.

Ordering Information

PART

NUMBER

ISL5571AIB Yes -40 to 85 16 Ld SOIC M16.3
ISL5571AIBZ

(Note)

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. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J Std-020B.

Add “-T” for tape and reel.

PROT

SCR

Yes -40 to 85 16 Ld SOIC

TEMP

RANGE (°C)

PACKAGE

TYPE

(Pb-free)

PKG.

DWG. #

M16.3

FN4920.5

Features

• Small Size/Surface-Mount Packaging

• Low Impulse Noise, Low EMI

• Clean, Bounce-Free Switching

• Line Break Switches

-0.5Ω Max r

-28Ω Max r

ON

ON

Match

• Built-In Current Limiting, Thermal Shutdown and
Secondary Protection for the SLIC

• Optimized for Short Loop High REN Applications

• 3V/5V Logic-Capable I/O

• Pb-free Available

Applications

• Central Office

• PBX

•DLC

•HFC

•FITL

•DAML

Related Literature

• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”

• Technical Brief TB379 “Thermal Characterization of
Packages for ICs”

• Texas Instruments TISPL758LF3D Data Sheet

• Teccor Electronics Document DO-214AA

Pinout

ISL5571A

TOP VIEW

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2001, 2002, 2004. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

F
T

T

T

GND

BAT

LINE

NC
NC

RING

V

DD

T

SD

16
15
14
13
12
11
10

9

V

BAT

R

BAT

R

LINE

NC
R

RING

LATCH
INPUT
D

GND

1
2
3
4
5
6
7
8

Block Diagram

www.BDTIC.com/Intersil

T

R

LINE

LINE

3

14

T

RING

6

RING

RETURN

SW3

RING
ACCESS
SW4

ISL5571A

ISL5571A - 16 LEAD SOIC

LINE BREAK

SW1

D1

D2

LINE BREAK

SW2

D3

D4

CONTROL LOGIC

V

BAT

16

SCR

2

T

BAT

1

F

GND

R

15

BAT

V

7

DD

12 11 10 8

R

RING

INPUTLATCH

D

9

GND

TSD

2

ISL5571A

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Absolute Maximum Ratings T

Maximum Supply Voltages

(V

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5V to +7V

DD

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-19V to -100V

(V

BAT

ESD Rating (Human Body Model). . . . . . . . . . . . . . . . . . . . . . .500V

Die Characteristics

Substrate Potential. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

Process . . . . . . . . . . . . . . . . . . . . . . . .6-inch BIMOS Bonded Wafer

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

1. θ

JA

Electrical Specifications T

PARAMETER TEST CONDITION MEASURE MIN TYP MAX UNITS

OFF-State Leakage Current:

ON-Resistance:

ON-Resistance Match Per ON-resistance Test Condition of SW1, SW2 Magnitude

ON-State Voltage (Note 2) Break Switches in ON-State; I

DC Current Limit:

Dynamic Current Limit
(t = <0.5µs)

Isolation:

dV/dt Sensitivity (Note 3) - 5000 - V/µs

NOTES:

2. Choice of secondary protection should ensure this rating is not exceeded.

3. Applied voltage is 100V

-40°C

25°C

85°C

-40°C
25°C
85°C

-40°C
25°C
85°C

-40°C

25°C

85°C

V
V
V
V
V
V

T
T
T

50/60Hz

V
V
V

Break Switches in ON-state; Ringing Access
Switches OFF; Apply ±1000V at 10/1000µs
Pulse; Appropriate External Secondary
Protection in Place

V
Logic Inputs = GND
V
Logic Inputs = GND
V
Logic Inputs = GND

square wave at 100Hz.

P-P

= 25°C Thermal Information

A

Thermal Resistance (Typical, Note 1) θ

SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Maximum Junction Temperature Plastic . . . . . . . . . . . . . . . . .150

Maximum Storage Temperature Range . . . . . . . . . -65

Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . .300

(SOIC - Lead Tips Only)

BAT

= -40°C to 85°C, Unless Otherwise Specified

A

TABLE 1. BREAK SWITCHES - ISL5571A - SW1, SW2

at

I

SWITCH

I

SWITCH

I

SWITCH

∆V

ON

∆V

ON

∆V

ON

SW1 - rON SW2

r

ON

V

ON

I

SWITCH

I

SWITCH

I

SWITCH

I

SWITCH

I

SWITCH

I

SWITCH

I

SWITCH

SWITCH (DIFFERENTIAL)
SWITCH (DIFFERENTIAL)
SWITCH (DIFFERENTIAL)
SWITCH (DIFFERENTIAL)
SWITCH (DIFFERENTIAL)
SWITCH (DIFFERENTIAL)

= ±10mA, ±40mA, T

LINE

= ±10mA, ±40mA, T

LINE

= ±10mA, ±40mA, T

LINE

SWITCH (ON)
SWITCH (ON)
SWITCH (ON)

SWITCH

SWITCH

SWITCH

= ±10V
= ±10V
= ±10V

(Both Poles) = ±310V

(Both Poles) = ±320V

(Both Poles) = ±330V

= -310V to GND
= -60V to +250V
= -320V to GND
= -60V to +260V
= -330V to GND
= -60V to +270V

= -2V

BAT

= -2V

BAT

= -2V

BAT

= I

switch

LIMIT

(°C/W)

JA

°C to 150°C

-

-

-

-

-

-

- - 220 V

-

-

80

-1.52.0A

-

-

-

-

-

-

12
16

-

0.05 0.5 Ω

-

125

-

-

-

-

1

1

1

28

250

1

1

1

µA

µA

µA

-

-

Peak

mA

-

mA
mA

µA

µA

µA

Ω
Ω
Ω

°C
°C

3

ISL5571A

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TABLE 2. RING RETURN SWITCH - ISL5571A - SW3

UNIT

PARAMETER TEST CONDITION MEASURE MIN TYP MAX

OFF-State Leakage Current:

-40°C

25°C

85°C

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

= -310V to GND
= -60V to +250V
= -320V to GND
= -60V to +260V
= -330V to GND
= -60V to +270V

I

SWITCH

I

SWITCH

I

SWITCH

DC Current Limit

-40°C V
25°C V
85°C

Dynamic Current Limit
(t = <0.5µs)

SWITCH (ON)
SWITCH (ON)

V

SWITCH (ON) I

Break Switches in OFF-State; Ringing Access Switches ON;
Apply ±1000V at 10/1000µs Pulse; Appropriate External

I

SWITCH

I

SWITCH
SWITCH

I

SWITCH

Secondary Protection in Place
ON-Resistance T
ON-State Voltage (Note 4) Ring Return Switch in ON-State; I

= 0, ±10mA ∆V

LINE

= I

switch

at 50/60Hz V

LIMIT

ON

ON

Isolation:

-40°C

25°C

85°C

V

Logic Inputs = GND

V

Logic Inputs = GND

V

Logic Inputs = GND

(Both Poles) = ±310V

SWITCH

(Both Poles) = ±320V

SWITCH

(Both Poles) = ±330V

SWITCH

I

SWITCH

I

SWITCH

I

SWITCH

dV/dt Sensitivity (Note 5) - 5000 - V/µs

NOTES:

4. Choice of secondary protection should ensure this rating is not exceeded.

5. Applied voltage is 100V

square wave at 100Hz.

P-P

-

-

1

-

-

1

-

-

1

- - 350 mA

-200-mA

120 - - mA

-1.52.0A

- - 100 Ω

- - 130 V

-

-

-

-

-

-

Peak

1

1

1

S

µA

µA

µA

µA

µA

µA

TABLE 3. RING ACCESS SWITCH - ISL5571A - SW4

PARAMETER TEST CONDITION MEASURE MIN TYP MAX UNITS

OFF-State Leakage Current:

-40°C

25°C

85°C

ON-Resistance I
ON Voltage I
Ring Access Switch Quiescent

Current During Ringing

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)

V

SWITCH (DIFFERENTIAL)
SWITCH (ON)
SWITCH

= 5V, Ring Access Switches On, All Other

V

CC

= ±70mA, ±80mA ∆V

(ON) = ±1mA V

= -245V to +210V
= +245V to -210V
= -255V to +210V
= +255V to -210V
= -270V to +210V
= +270V to -210V

Switches Off

I

SWITCH

I

SWITCH

I

SWITCH

ON

ON

I

RING QUIESCENT

(Note 6)

-

-

-

-

-

-

1

1

1

µA

µA

µA

--12 Ω

--3V

-2.0-mA

Steady State Current (Note 7) --150mA
Surge Current (Note 7) Ring Access Switch On, Time Duration = 100µs--2A
Release Current 200 - 1000 µA
Isolation:

-40°C

V

SWITCH

(Both Poles) = ±310V

I

SWITCH

-

-

1

µA

Logic Inputs = GND

25°C

85°C

V
Logic Inputs = GND
V
Logic Inputs = GND

(Both Poles) = ±320V

SWITCH

(Both Poles) = ±330V

SWITCH

I

SWITCH

I

SWITCH

-

-

-

-

1

1

µA

µA

dV/dt Sensitivity (Note 8) - 5000 - V/µs

NOTES:

6. Magnitude of the ring generator current not supplied to the ring load. I

7. Choice of secondary protector and series current-limit resistor should ensure these ratings are not exceeded.

8. Applied voltage is 100V

square wave at 100Hz.

P-P

RING QUIESCENT

= I

RING GEN

- I

RING LOAD

.

4