8281IC贸易商引脚图技术参数全新原装-中国IC网-芯三七

8281 AND

8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

Intended for analog and digital satellite receivers, these low-noise

block converter regulators (LNBRs) are monolithic linear and switching

voltage regulators specifically designed to provide the power and

interface signals to the LNB down converter via the coaxial cable. If the

device is in standby mode (EN terminal low), the regulator output is

disabled, allowing the antenna down converters to be supplied or

controlled by other satellite receivers sharing the same coaxial cable. In

this mode, the device will limit the output reverse current.

A8282SLB

NC

OLF

1

2

3

4

5

6

7

8

24 EXTM

VINT

23

22

VBULK

PUMPX

NC

21 VPUMP

The A8281SLB output is set to 13 or 18-V by the VSEL terminal. It

is supplied in a 16-lead SOIC power-tab package. The power tabs are at

ground potential and need no electrical isolation.

CPUMP

GND

20

19

GND

18 GND

ENT

The A8282SLB output is set to 12, 13, 18, or 20-V by the VSEL

terminals. Additionally, it is possible to increase the selected voltage by

1-V to compensate for the voltage drop in the coaxial cable (LLC

terminal high). It is supplied in a 24-lead SOIC power-tab package.

The power tabs are at ground potential and need no electrical isolation.

The A8282SLB is an improved version of the A8283SLB, without a

bypass switch.

SENSE

17

LNB 99

LX 10

16 EN

BUCK

15 VSEL0

11

REG.

VSEL1

LLC

VIN

14

13

TCAP 12

FEATURES

Dwg. PP-072-2

■ LNB selection and standby function

■ Built-in tone oscillator factory trimmed to 22-kHz, facilitates

DiSEqC™ (a trademark of EUTELSAT) encoding

■ Tracking switch-mode power converter for lowest dissipation

■ Externally adjustable short-circuit protection

■ LNB short-circuit protection and diagnostics

■ Auxiliary modulation input

ABSOLUTE MAXIMUM RATINGS

at T_A= +25°C

Supply Voltage, V_IN........................... 47-V

Output Current, I_LNB.... Internally Limited

Output Voltage Range, V_LNB.. -1-V to +22-V

■ Internal over-temperature protection

■ Reverse-current protection

Logic Input Voltage Range,

V_I................................... -0.3-V to +7-V

Flag Output Voltage, V_OLF................... 7-V

Operating Temperature Range,

■ Cable length compensation (A8282SLB only)

T_A................................. -20°C to +85°C

Junction Temperature, T_J................ +150°C

Storage Temperature Range,

These devices incorporate features that have patents pending.

T_S.............................. -55°C to +150°C

Always order by complete part number, e.g., A8282SLB .

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

FUNCTIONAL BLOCK DIAGRAM

and typical application

100 µH

RS 200 mΩ

0.1 µF

VIN

47 V MAX

+

100 µF

VINT

(A8282 ONLY)

BOOST

VOLTAGE

REG.

–

+

BUCK

CONV.

CHARGE

PUMP

OVER-

–

+

–

+

CURRENT

7 V

EN

135 mV

5 V

VREF

176 kHz

DiSEqC TERMINATION

352 kHz

900 mV

–

÷2

15 Ω

+

–

25 kΩ

+

ENT

180 µH

0.22 µF

LNB

5 kΩ

22 kHz TONE

÷8

&

WAVESHAPING

EXTM

TSD

0.1 µF

OLF

OVER-

CURRENT

1 kΩ

TCAP

10 nF

Dwg. FP-051-2

A8281SLB Output Voltage Select Table

A8281SLB

VSEL1

V_LNB

13 V

18 V

L

H

PUMPX

VPUMP

CPUMP

GND

1

2

3

4

5

6

16

15

14

13

12

EXTM

OLF

VBULK

A8282SLB Output Voltage Select Table

GND

VSEL0

VSEL1

LLC

L

V_LNB

13 V

14 V

18 V

19 V

12 V

13 V

20 V

21 V

SENSE

ENT

L

H

L

H

L

H

L

H

L

H

LNB

LX

EN

11

10

9

L

BUCK

VSEL1

TCAP

7

8

H

VIN

REG.

Dwg. PP-072-3

115 Northeast Cutoff, Box 15036

2

Worcester, Massachusetts 01615-0036 (508) 853-5000

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

ELECTRICAL CHARACTERISTICS: unless otherwise noted at T_J< 125°C, C_LNB= 0.1 µF,

4.5-V + V_LNB< V_IN< 47-V

Limits

Characteristic

Symbol

V_IN

Test Conditions

Min.

4.5+V_LNB

—

Typ. Max. Units

Supply Voltage Range

Operating

—

0

47

V

%

Output Voltage Error

(reference Output Voltage

Select table)

E_VLNB

6 mA ≤ I_LNB≤ 750 mA, ENT = L

±4.5

12 mA ≤ I_LNB≤ 750 mA, ENT = H,

average V_LNB

—

0

Output Reverse Current

Buck Switch On Resist.

I_RLNB

EN = L, V_LNB= 22 V, V_IN= 22 V or ﬂoating

T_J= 25°C, I_LNB= 750 mA

—

1

5

mA

Ω

r_DS(on)

0.57 0.67

0.84 0.94

T_J= 125°C, I_LNB= 750 mA

Ω

Buck Switch Current Limit

Switching Frequency

Linear Reg. Volt. Drop

Logic Input Voltage

I_BSM

f_O

—

2.5

A

16 x f_tone

320

700

—

2

352

384

kHz

mV

V

∆V_BUCK

V_IL

V_SENSE– V_LNB, ENT = L, I_LNB= 750 mA

900 1100

—

0.8

—

10

1

V_IH

V

Logic Input Current

Supply Current

I_IH

V_IH= 5 V

—

<1.0

0.25

6

µA

mA

I_IN

Outputs disabled (EN = L)

EN = H, I_LNB= 0

10

Tone Characteristics

Tone Frequency

f_tone

ENT = H

20

400

40

22

650

—

24

900

60

kHz

mV

%

Tone Amplitude

V_{tone(PP)(ENT)}ENT = H, 12 mA ≤ I_LNB≤ 750 mA

Tone Duty Cycle

dc_tone

t_r, t_f

ENT = H, 12 mA ≤ I_LNB≤ 750 mA

ENT = H, 12 mA ≤ I_LNB≤ 750mA

Tone Rise or Fall Time

5

10

15

µs

External Modulation

Tone Amplitude

V_{tone(PP)(EXTM)}f = 22 kHz square wave, I_LOAD= 12 mA to

450 mA, V_IN= 100mV to 125 mV;

V_PPac coupled

400

550

800

mV

External Modulation Input

Voltage Range

V_EXTM(PP)

AC coupled

100

4

—

125

10

mV

External Modulation Input

Impedance

Z_EXTM

f = 22 kHz

kΩ

continued next page

NOTES: 1. Typical data is for design information only.

2. Negative current is deﬁned as coming out of (sourcing) the speciﬁed device terminal.

www.allegromicro.com

3

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

ELECTRICAL CHARACTERISTICS: unless otherwise noted at T_J≤ 125°C, C_LNB= 0.1-µF,

4.5-V + V_LNB≤ V_IN≤ 47-V.

Limits

Characteristic

Symbol Test Conditions

Min.

Typ. Max. Units

Protection Circuitry

Current-Limiting Threshold

Overload Flag Output Low

Overload Flag Leakage Current

Thermal Shutdown Temp.

Thermal Shutdown Hysteresis

V_ILNB(th)V_BULK– V_SENSE

115

—

135

0.28

<1.0

165

20

155

0.5

10

mV

V

V_OLF

I_OLF

T_J

I_OLF= 8-mA

V_OLF= 5.5-V

—

µA

°C

—

∆T_J

—

NOTES: 1. Typical data is for design information only.

2. Negative current is defined as coming out of (sourcing) the specified device terminal.

115 Northeast Cutoff, Box 15036

4

Worcester, Massachusetts 01615-0036 (508) 853-5000

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

FUNCTIONAL DESCRIPTION

Buck regulator. A current-mode buck converter

provides the linear regulator a supply voltage that

tracks the selected LNB output voltage. The buck

converter operates at 16 times the internal tone fre-

quency, nominally 352-kHz.

mum dc plus ac (tone) load current required, internal

V_ILNB(th)tolerance, and sense resistor accuracy. For

750-mA applications, a precision 140-mΩ resistor is

recommended. For 500-mA applications, the resistor

value can be raised to 200-mΩ.

The tracking regulator provides minimum power

dissipation across the range of output voltages by

adjusting the SENSE terminal voltage, nominally

900-mV above the LNB output voltage. The tracking

regulator also provides adequate headroom for tone

injection.

In operation, the short-circuit protection produces

current limiting at the input due to the tracking con-

verter. If the output is shorted, the linear regulator

will limit the output current to I_LNBM

.

Fault output. Short-circuit or thermal shutdown

will cause the OLF terminal, an open-drain diagnostic

output flag, to go LOW.

Linear regulator. The output linear regulator will

sink or source current. This allows tone modulation

into a capacitive load of 0.1-µF over the output

current range of 12-mA to 750-mA.

Internal tone modulation. The ENT (tone enable)

terminal activates the internal tone signal, modulating

the dc output with a 650-mV peak-to-peak trapezoidal

waveform. The internal oscillator is factory trimmed

to provide a tone of 22-kHz. No further adjustment is

required. Burst coding of the tone can be accom-

plished, due to the fast response of the ENT input and

rapid tone response. This allows implementation of

the DiSEqC™ protocols.

Slew rate control. The programmed output volt-

age rise and fall times can be set by an external

capacitor (with an internal 25-kΩ resistor) located on

the TCAP terminal. The range of acceptable capaci-

tor values is 4.7-nF to 47-nF. This feature only

affects the turn-on and programmed voltage rise and

fall times. Modulation is unaffected by the capacitor.

If LNB output voltage rise and fall time limiting is

not required, the TCAP terminal should use a 100-nF

ceramic as a default value to minimize output noise.

If a small value capacitor is used, the rise time will be

limited by the time required to charge the VBULK

capacitor.

External tone modulation. To improve design

flexibility and to allow implementation of proposed

LNB remote control standards, an analog modulation

input terminal is available (EXTM). An appropriate

dc-blocking capacitor must be used to couple the

modulating signal source to the EXTM terminal. The

peak-to-peak input amplitude should stay within

100-mV to 125-mV to ensure the DiSEqC amplitude

specification over the output current range. If exter-

nal modulation is not used, the EXTM terminal

should be decoupled to ground with a 0.1-µF ceramic

capacitor.

Short-circuit limit regulator. The LNB output is

current limited. The short-circuit protection threshold

is set by the value of an external resistor, R_S, in

conjunction with an internal 135-mV reference

voltage (V_ILNB(th)).

R_S= 0.135/I_LNBM

where I_LNBMis the desired current-limit value. The

sense resistor should be chosen based on the maxi-

www.allegromicro.com

5

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

APPLICATIONS INFORMATION

Component selection:

of the 22-kHz tone. Operating points above the line

in the following graph will not have excessive over-

shoot.

Input capacitor, C_IN. An electrolytic capacitor

should be located as close to the device VIN terminal

as possible. The input current is a square wave with

fast rise and fall times so the capacitor must be able to

handle the rms current without excessive temperature

rise. The value of this capacitor is not as important as

the ESR. The worst-case current is with maximum

load current, minimum V_IN, and maximum V_LNB

(highest switch duty cycle). Choose a capacitor with

a ripple current rating greater than

125

100

75

MINIMAL OVERSHOOT

50

I_cin= I_LNBx 1.2 x V_LNB(max)/V_IN(min)

EXCESSIVE OVERSHOOT

Buck inductor, L1. A 100-µH power inductor is

appropriate for all operating conditions. The rated

saturation current of the inductor must be greater than

1.3-A. To maximize efficiency, the dc resistance

should be less than 350-mΩ.

25

0

0.5

1.0

1.5

0

OUTPUT CAPACITANCE IN µF

Dwg. GP-074

Layout notes:

Clamp diode, D1. A Schottky diode is required at

the switching node LX. This diode should be rated at

1.5 times the maximum load current.

1. The printed wiring board should use a heavy

ground plane. A two-sided board with ground planes

on both sides of the board is most desirable. Several

copper vias under the device can be used to connect

the ground planes and enhance thermal performance.

Output capacitor, C_BULK. A low-ESR (<200-mΩ)

electrolytic capacitor is recommended to minimize

the ripple voltage. Less than 50-mV peak-to-peak is a

reasonable goal.

2. For optimum electrical and thermal performance,

the device should be soldered directly onto the board.

V_ripple(PP)= ESR x I_ripple(max)

3. Keep the sense resistor traces as short and as wide

as possible to lower trace resistance.

where I_ripple(max)= V_BULK(min)x (1 – [V_BULK(min)/V_IN(max)]) /

(L1 x 352-kHz).

4. Connect the bypass capacitors as close to the

device as possible. The lower value ceramic capaci-

tors should be closer to the device than the

electrolytics. The supply voltage, V_IN, should be

decoupled with an electrolytic capacitor placed as

close to the device as possible.

Output capacitor, C_LNB. Increasing the output

capacitance, C_LNB, will attenuate noise. However,

this is limited by the requirement for low cable

capacitance for 22-kHz tone transmission.

Also, because the linear regulator sink current is

limited, high values of output capacitance combined

with low levels of output current can cause overshoot

5. Place the TCAP capacitor as close to the device as

possible.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

6

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

APPLICATIONS INFORMATION (cont’d)

Grounding. Use a star ground approach at the

device ground terminals. This allows the analog and

power grounds to be kept separate on the PWB up to

the device.

DirecTV®. With the A8282, it is possible to raise

the LNB output voltage 440-mV from the nominal

13-V setting to comply with DirecTV requirements.

This is accomplished by connecting a 1-MΩ resistor

between the VINT and TCAP terminals, sourcing

approximately 2.76-µA into the TCAP node. The

LNB output voltage is approximately six times the

setting of the voltage-select DAC as shown in the

figure.

Noise immunity. LNB systems can have a 50-mV

peak specification for noise on the coaxial cable.

This is easily achievable with proper layout and

following a few guidelines:

1. Use a low-ESR capacitor for V_BULK. A maximum

of 200-mΩ is recommended.

VOLTAGE

VINT

REG.

2. The LNB output is sensitive to the TCAP refer-

ence terminal. Keep the PWB traces short and loca-

tion of C_TCAPclose to the device. This terminal is a

high-impedance node and noise can be induced from

proximity to an unshielded inductor. If the inductor

can not be placed far enough away to avoid noise

pickup, it is important to ensure that the induced

voltage is out of phase with the switching node LX.

Rotating the inductor can change the phase of the

induced voltage.

TCAP

–

X6

+

25 kΩ

LNB

VOLTAGE

SELECT

Dwg. EP-074

DiSEqC™. The 22-kHz tone is specified to be

compatible with EUTELSAT coaxial cable bus

standards.

3. Be sure to place a 1-µF to 10-µF capacitor on

internal reference V_INT(A8282 only).

4. Bypass EXTM with a 0.1-µF ceramic capacitor to

ground.

The LNB output will be able to drive the DiSEqC

termination network. The inductor must pass the dc

current with minimal loss while the parallel resistor

provides the recommended source impedance at

22-kHz. Unidirectional communication systems such

as DiSEqC 1.0 do not need this termination and the

LNB can be directly connected to the coaxial cable.

5. Increasing the output capacitance will attenuate

noise. However, this must be traded off with the

requiremnent for low cable capacitance for 22-kHz-

tone transmission.

13-V to 18-V transition. The LNB output can be

rapidly switched between a high and a low setting as

a method of receiver-to-LNB communication. The

TCAP capacitor will control the slew rate based on

the RC charging.

t_ror t_f= 25 x 10³x C_TCAPln(V_LNB(H)/V_LNB(L)

)

www.allegromicro.com

7

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

APPLICATIONS INFORMATION (cont’d)

Small values of TCAP are used when the desired

transition time is less than a millisecond. In this case,

the minimum rise time is limited by the charge time

of the switching regulator output capacitor. This is

dependent on the LNB load current, peak current limit

in the buck switch, and the output amplitude change.

where T_Tis the power tab temperature (leads 4 or 13

for the A8281SLB or leads 6, 7, 18, or 19 for the

A8282SLB) and R_θJTis 6°C/W.

Package thermal resistances, R_θJA, measured on

JEDEC standard “high-K” four layer board:

A8281SLB..................................... 38°C/W

A8282SLB..................................... 35°C/W

t_r= C_BULK(V_LNB(H)– V_LNB(L))/I_(AV)

where I_(AV)is the average current available to charge

the output capacitor and can be estimated by I_(AV)

=

measured on two-sided PWB with 3 square inches

(1935 mm²) copper ground area on each side:

A8281SLB..................................... 48°C/W

1.4 – I_LNB. Note that this is only a limitation due to

the ability to charge the output capacitor on a low-to-

high change of the LNB voltage. For high-to-low

transitions, the output voltage will be slew limited by

TCAP.

A8282SLB..................................... 45°C/W

The minimum value for C_TCAPis 4.7-nF.

Power dissipation. The power dissipated, and

operating junction temperature of the device, can be

estimated to ensure that the device is operating within

the desired thermal budget.

The total device power dissipation (P_D) is com-

prised of three components:

P_D= P_D(bias)+ P_D(lin)+ P_D(buck)

where P_D(bias)= V_IN(I_IN– 0.004),

P_D(lin)= ∆V_BUCKx I_LNB

,

P_D(buck)= I_LNB²x r_DS(on)x V_BULK/V_IN

where V_BULK= ∆V_BUCK+ (I_LNBx R_S) + V_LNB

.

The device junction temperature can then be

estimated as

T_J= (P_Dx R_θJA) + T_A

or

T_J= (P_Dx R_θJT) + T_T

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

8

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

APPLICATIONS INFORMATION (cont’d)

+5 V

5 kΩ

C1

CINT

1

2

3

4

5

24

R1

OLF

+

TCAP

VIN

23

22

21

20

C2

C3

6

7

19

18

17

16

15

14

13

ANALOG

GROUND

8

ENT

99

10

11

ENB

BUCK

VSEL0

D1

REG.

VSEL1

LLC

+

CIN

12

CTCAP

0.22 µF

15 Ω

L2

POWER

GROUND +30 V

VIN

180 µH

DiSEqC TERMINATION

Dwg. EP-072

Typical application

www.allegromicro.com

9

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

APPLICATIONS INFORMATION (cont’d)

Parts list for typical application

Description

Representative Component

C1, C2, C3,

C_BYP, C_LNB

0.1-µF/50-V ceramic X7R/X5R

C_IN

100-µF/50-V low-ESR electrolytic

100-µF/35-V low-ESR electrolytic

4.7-µF/16-V tantalum electrolytic

1-A/40-V Schottky diode

Nichicon UHD1H101MPT

Nichicon UHC1V101

C_BULK

C_INT

D1

Sanken EK04

D2

1.2-A/100-V fast-recovery diode

100-µH (750-mA max. load)

Sanken EU 2YX

L1

TDK TSL1112-101K1R4, or

Coilcraft D03316P-104LW

100-µH (500-mA max. load)

180-µH (750-mA max. load)

140-mΩ to 200-mΩ/0.25-W

10-nF ceramic X7R/X5R

TDK TSL0808-101KR80

TDK TSL1112S-181K1R0-PF

Meritek CR04RxxxF

L2

RS

C_TCAP

R1

1-MΩ, ±5% (optional, see page 7)

DiSEqC (Digital Satelite Equipment Control) is a trade-

mark of EUTELSAT (European Telecommunications

Satellite Corporation), Paris, France.

DirecTV is a trademark of DirecTV, Inc., a unit of Hughes

Electronics Corp., El Segundo, CA

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

10

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

Terminal List

A8281SLB A8282SLB

Terminal Terminal

Terminal

Number

1

Name

Number

Terminal Description

NC

–

No (internal) connection

OLF

2

Overload flag output: low (fault) when I_LNB> I_LNBMor

T_J> 165°C, high when I_LNB< I_LNBMand T_J< 130°C

VBULK

NC

3

–

4

5

6

7

3

4, 5

6, 7

8

Tracking supply voltage to linear regulator

No (internal) connection

Ground and substrate

GND

SENSE

LNB

Current limit setup resistor

Output voltage to LNB

9

LX

10

Inductor drive point

VIN

8

9

11

12

Supply input voltage (minimum, V_LNB+ 2.5-V)

TCAP

Capacitor for setting the rise and fall time of the outputs for

line-length compensation

LLC

VSEL1

VSEL0

EN

–

10

–

13

14

15

16

Logic input: output voltage select

Logic input: when high, enables device

11

ENT

GND

12

13

14

15

16

–

17

18, 19

20

Logic input: when high, enables internal 22-kHz modulation

Ground and substrate

CPUMP

VPUMP

PUMPX

VINT

High side of charge-pump capacitor

Gate-supply voltage for high-side drivers

Charge-pump drive

21

22

23

Bypass capacitor for internal voltage reference

External modulation input

EXTM

1

24

www.allegromicro.com

11

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

A8281SLB

Dimensions in Inches

(for reference only)

16

9

0.0125

0.0091

0.419

0.394

0.2992

0.2914

0.050

0.016

0.020

0.013

1

2

0.050

BSC

3

0° TO 8°

0.4133

0.3977

0.0926

0.1043

Dwg. MA-008-16A in

0.0040 MIN.

Dimensions in Millimeters

(controlling dimensions)

16

9

0.32

0.23

10.65

10.00

7.60

7.40

1.27

0.40

0.51

0.33

1

2

1.27

BSC

3

0° TO 8°

10.50

10.10

2.65

2.35

Dwg. MA-008-16A mm

0.10 MIN.

NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.

2. Lead spacing tolerance is non-cumulative.

3. Leads 4 and 13 are internally one piece.

4. Supplied in standard sticks/tubes of 47 devices or add “TR” to part number for tape and reel.

115 Northeast Cutoff, Box 15036

12

Worcester, Massachusetts 01615-0036 (508) 853-5000

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

A8282SLB

Dimensions in Inches

(for reference only)

13

24

0.0125

0.0091

0.419

0.394

0.2992

0.2914

0.050

0.016

0.020

0.013

1

2

3

0.050

0.6141

0.5985

0° TO 8°

BSC

NOTE 1

NOTE 3

0.0926

0.1043

Dwg. MA-008-25A in

0.0040 MIN.

Dimensions in Millimeters

(controlling dimensions)

24

0.32

0.23

10.65

10.00

7.60

7.40

1.27

0.40

0.51

0.33

1

2

1.27

3

BSC

15.60

15.20

0° TO 8°

NOTE 1

NOTE 3

2.65

2.35

Dwg. MA-008-25A mm

0.10 MIN.

NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.

2. Lead spacing tolerance is non-cumulative.

3. Webbed lead frame. Leads 6, 7, 18, and 19 are internally one piece.

4. Supplied in standard sticks/tubes of 31 devices or add “TR” to part number for tape and reel.

www.allegromicro.com

13

8281 AND 8282

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATORS

The products described here are manufactured under one or more

U.S. patents or U.S. patents pending.

Allegro MicroSystems, Inc. reserves the right to make, from time to

time, such departures from the detail specifications as may be

required to permit improvements in the performance, reliability, or

manufacturability of its products. Before placing an order, the user is

cautioned to verify that the information being relied upon is current.

Allegro products are not authorized for use as critical components

in life-support devices or systems without express written approval.

The information included herein is believed to be accurate and

reliable. However, Allegro MicroSystems, Inc. assumes no responsi-

bility for its use; nor for any infringement of patents or other rights of

third parties which may result from its use.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

14

型号:	82810101000
是否Rohs认证：	符合
生命周期：	Active
Reach Compliance Code：	compliant
风险等级：	5.57
连接器支架类型：	WIRE AND CABLE
Base Number Matches：	1

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