UCC25710DWR

更新时间： 2022-04-02 04:27:09

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
34页	1522K
描述
LLC Half-Bridge Controller For Multi-String LED Lighting

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UCC25710DWR 数据手册

UCC25710

www.ti.com

SLUSAD7A –APRIL 2011–REVISED MAY 2011

THERMAL INFORMATION

UCC25710

THERMAL METRIC⁽¹⁾

SOIC (DW)

UNITS

20 PINS

θ_JA

Junction-to-ambient thermal resistance⁽²⁾

Junction-to-case (top) thermal resistance⁽³⁾

Junction-to-board thermal resistance⁽⁴⁾

θ_JCtop

θ_JB

°C/W

ψ_JT

ψ_JB

Junction-to-top characterization parameter⁽⁵⁾

Junction-to-board characterization parameter⁽⁶⁾

(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

(2) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as

specified in JESD51-7, in an environment described in JESD51-2a.

(3) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific

JEDEC-standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.

(4) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB

temperature, as described in JESD51-8.

(5) The junction-to-top characterization parameter, ψ_JT, estimates the junction temperature of a device in a real system and is extracted

from the simulation data for obtaining θ_JA, using a procedure described in JESD51-2a (sections 6 and 7).

(6) The junction-to-board characterization parameter, ψ_JB, estimates the junction temperature of a device in a real system and is extracted

from the simulation data for obtaining θ_JA, using a procedure described in JESD51-2a (sections 6 and 7).

RECOMMENDED OPERATING CONDITIONS

all voltages are with respect to GND; currents are positive into and negative out of the specified terminal. -40°C < T_J= T_A<

125°C (unless otherwise noted)

MIN

TYP

MAX

UNIT

V_CC

Operating input voltage

VCC bypass capacitor

C_VCC

0.47

-40

µF

Operating junction temperature

Switching frequency at gate drive outputs

Input voltage range (linear range)

Input voltage range (using internal clamps)

VREF bypass capacitor

SS capacitor

125

350

2.7

°C

kHz

V_CREF

C_VREF

C_SS

0.6

1.65

1.0

V_VREF

2.2

0.22

µF

250

C_ICOMP

C_DTY

ICOMP capacitor

0.5

0.22

DTY capacitor

6.8

µF

C_DSR

DSR capacitor

2500

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