PBL386212QNT datasheet(6/16 Pages) ERICSSON

Part #	PBL386212QNT

Description	Subscriber Line Interface Circuit

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Manufacturer	ERICSSON [Ericsson]

Direct Link	http://www.ericsson.com

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PBL 386 21/2

6

Loop current detector

Programmable threshold, I

LTh

I

LTh =

500

0.85•I

LTh

I

LTh

1.15•I

LTh

mA

R

LD

R

LD in kΩ, ILTh ≥ 7 mA

Ground key detector

Ground key detector threshold

(I

TIPX and IRINGX difference to trigger ground key det.)

10

16

22

mA

Ring trip comparator

Offset voltage,

∆V

DTDR

Source resistance, R

S = 0 Ω

-20

0

20

mV

Input bias current, I

B

I

B = (IDT + IDR)/2

-200

-20

200

nA

Input common mode range, V

DT, VDR

V

Bat+1

-1

V

Ring relay driver

Saturation voltage, V

OL

I

OL = 50 mA

0.2

0.5

V

Off state leakage current, I

Lk

V

OH = 12 V

10

µA

Digital inputs (C1, C2, C3)

Input low voltage, V

IL

0

0.5

V

Input high voltage, V

IH

2.5

V

CC

V

Input low current, I

IL

V

IL = 0.5

-50

µA

Input high current, I

IH

V

IH = 2.5 V

50

µA

Detector output (DET)

Output low voltage

I

OL = 0.5 mA

0.7

V

Internal pull-up resistor

15

k

Ω

Power dissipation (V

Bat = -48V, VBat2 = -17V)

P

1

Open circuit state, C1, C2, C3 = 0, 0, 0

10

15

mW

P

2

Active state, C1, C2, C3 = 0, 1, 0

Longitudinal current = 0 mA, I

L=0 mA (on-hook)

60

80

mW

P

3

R

L = 300 Ω (off-hook)

290

mW

P

4

R

L = 500 Ω (off-hook)

145

mW

Power supply currents (V

Bat = -48V)

V

CC current, ICC

Open circuit state

1.2

2.0

mA

V

Bat current, IBat

-0.1

-0.05

mA

V

CC current, ICC

Active state

2.8

4.0

mA

V

Bat current, IBat

On-hook, Long Current = 0 mA

-1.5

-1.0

mA

Power supply rejection ratios

V

CC to 2- or 4-wire port

Active State

30

42

dB

V

Bat to 2- or 4-wire port

f = 1 kHz, V

n = 100mV

36

45

dB

V

Bat2 to 2- or 4-wire port

40

60

dB

Temperature guard

Junction threshold temperature, T

JG

145

°C

Thermal resistance

28-pin PLCC,

θ

JP28plcc

39

°C/W

24-pin SOIC,

θ

JP24soic

43

°C/W

24-pin SSOP,

θ

JP24ssop

55

°C/W

Parameter

fig

Conditions

Min

Typ

Max

Unit

Ref

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PBL386212QNT Datasheet(PDF) 6 Page - Ericsson

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