Datasheet > UCC28714

UCC28714

更新时间： 2022-03-27 23:32:03

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
30页	1328K
描述
Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

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UCC28714 数据手册

UCC28710, UCC28711

UCC28712, UCC28713

UCC28714, UCC28715

www.ti.com

SLUSB86 –NOVEMBER 2012

ELECTRICAL CHARACTERISTICS (continued)

over operating free-air temperature range, V_VDD= 25 V, HV = open, R_CBC(NTC)= open, T_A= -40°C to 125°C, T_A= T_J

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

PROTECTION

V_OVP

Over-voltage threshold

Over-current threshold

VS line-sense run current

At VS input, T_J= 25°C⁽²⁾

4.55

4.60

4.71

V_OCP

At CS input

1.4

190

1.5

225

1.6

275

100

3.05

I_VSL(run)

Current out of VS pin increasing

Current out of VS pin decreasing

I_VSL(run)/ I_VSL(stop)

µA

I_VSL(stop)VS line-sense stop current

K_VSL

VS line sense ratio

2.45

2.80

165

A/A

°C

T_J(stop)

Thermal shut-down temperature

Internal junction temperature

CABLE COMPENSATION

UCC28710

UCC28714

UCC28715

Cable compensation maximum

voltage

V_CBC(max)

Voltage at CBC at full load

2.9

-55

3.2

-15

3.5

UCC28710

UCC28714

UCC28715

V_CBC= open, change in VS

regulating level at full load

V_CVS(min)Compensation at VS

UCC28710

UCC28714

UCC28715

V_CBC= 0 V, change in VS regulating

level at full load

V_CVS(max)Maximum compensation at VS

275

-55

320

375

UCC28711

UCC28712

UCC28713

-15

103

206

Change in VS regulating level at full

load

V_CVS

Compensation at VS

NTC INPUT

V_NTCTHNTC shut-down threshold

UCC28711

UCC28712

UCC28713

Fault UVLO cycle when below this

threshold

0.90

0.95

105

1.00

125

UCC28711

UCC28712

UCC28713

I_NTC

NTC pull-up current

Current out of pin

µA

(2) The regulating level at VS decreases with temperature by 0.8 mV/˚C. This compensation is included to reduce the power supply output

voltage variance over temperature.

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