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2376

更新时间： 2024-02-08 17:53:09

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
23页	671K
描述
IEEE 802.3af PoE POWERED DEVICE CONTROLLERS WITH AUTO-RETRY

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2376 技术参数

生命周期：	Contact Manufacturer	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8504.32.00.00
风险等级：	5.63	次级绕组数量：	1
输出电流 1：	21.74 A	变压器类型：	TOROIDAL POWER TRANSFORMER
VA 额定值：	5000 VA	Base Number Matches：	1

2376 数据手册

TPS2375-1

TPS2377-1

www.ti.com

SLVS570–MARCH 2005

RECOMMENDED OPERATING CONDITIONS

MIN

MAX

UNIT

VDD, PG, RTN

Input voltage range

UVLO

Operating current range (sinking)

Classification resistor⁽¹⁾

RTN

350

4420

500

Ω

CLASS

255

62.5

(1)

R_(ILIM)Inrush limit program resistor

kΩ

°C

Sinking current

T_J

Operating junction temperature

Operating free–air temperature

-40

125

T_A

(1) Voltage should not be externally applied to CLASS and ILIM.

ELECTRICAL CHARACTERISTICS

V_(VDD)= 48 V, R_(DET)= 24.9 kΩ, R_(CLASS)= 255 Ω, R_(ILIM)= 178 kΩ, and –40°C ≤ T_J≤ 125°C, unless otherwise noted. Positive

currents are into pins. Typical values are at 25°C. All voltages are with respect to VSS unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DETECTION

DET open, V_(VDD)= V_(RTN)= 1.9 V, measure

I_(VDD)+ I_(RTN)

Offset current

0.3

µA

DET open, V_(VDD)= V_(RTN)= 10.1 V, measure

I_(VDD)+ I_(RTN)

Sleep current

DET leakage current

V_(DET)= V_(VDD)= 57 V, measure I_(DET)

0.1

µA

V_(RTN)= V_(VDD)

V_(VDD)= 1.4 V

53.7

395

58.3

R_(DET)= 24.9 kΩ,

measure I_(VDD)+ I_(RTN)

I_(DET)

Detection current

V_(VDD)= 10.1 V

410

417

µA

CLASSIFICATION

R_(CLASS)= 4420 Ω, 13 ≤ V_(VDD)≤ 21 V

R_(CLASS)= 953 Ω, 13 ≤ V_(VDD)≤ 21 V

R_(CLASS)= 549 Ω, 13 ≤ V_(VDD)≤ 21 V

R_(CLASS)= 357 Ω, 13 ≤ V_(VDD)≤ 21 V

R_(CLASS)= 255 Ω, 13 ≤ V_(VDD)≤ 21 V

Regulator turns on, V_(VDD)rising

Regulator turns off, V_(VDD)rising

Hysteresis

2.2

10.3

17.7

27.1

2.4

10.6

18.3

2.8

11.3

19.5

29.5

41.2

13.0

I_(CLASS)

Classification current⁽¹⁾

39.4

11.3

21.9

0.78

V_{(CL_ON)}

V_{(CU_OFF)}

V_{(CU_H)}

Classification lower threshold

Classification upper threshold

Leakage current

10.2

0.5

V_(CLASS)= 0 V, V_(VDD)= 57 V

µA

PASS DEVICE

r_DS(on)

On resistance

Leakage current

Current limit

Inrush limit

I_(RTN)= 300 mA

0.58

1.0

Ω

V_(VDD)= V_(RTN)= 30 V

V_(RTN)= 1 V

µA

405

100

461

130

515

I_(LIM)

V_(RTN)= 2 V, R_(ILIM)= 178 kΩ

180

V_(RTN)falling, R_(ILIM)= 178 kΩ, inrush

state→normal operation

85%

91%

100%

(2)

Inrush current termination

R_(ILIM)= 69.8 kΩ, V_(RTN-VSS)= 5 V,

I_(RTN)= 30 mA→300 mA, V_(VDD)increasing

past upper UVLO

Current rise time into inrush

µs

Apply load ∞Ω→20 Ω, time measured to

I_(RTN)= 45 mA

2.5

Current limit response time

Leakage current, ILIM

µs

V_(VDD)= 15 V, V_(UVLO)= 0 V

µA

(1) Classification is tested with exact resistor values. A 1% tolerance classification resistor ensures compliance with IEEE 802.3af limits.

(2) This parameter specifies the RTN current value, as a percentage of the steady state inrush current, below which it must fall to make PG

assert (open-drain).

1 234 5 6 7...23

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