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TPS61185RGET

更新时间： 2024-01-11 06:13:18

品牌	Logo	应用领域
德州仪器 - TI		显示驱动器驱动程序和接口接口集成电路电脑 PC
页数	文件大小	规格书
26页	796K
描述
WLED Driver for Notebooks with PWM Control Interface

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技术参数
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替代型号

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TPS61185RGET 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	VQFN-24	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	2.26	Samacsys Confidence：
Samacsys Status：	Released	Samacsys PartID：	607837
Samacsys Pin Count：	25	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Other	Samacsys Footprint Name：	QFN50P400X400X100-25N
Samacsys Released Date：	2017-01-12 12:59:53	Is Samacsys：	N
输入特性：	STANDARD	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-PQCC-N24	JESD-609代码：	e4
长度：	4 mm	湿度敏感等级：	2
复用显示功能：	NO	功能数量：	1
区段数：	80	端子数量：	24
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVQCCN
封装等效代码：	LCC24,.16SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
电源：	3/3.3 V	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Display Drivers
最大压摆率：	3 mA	最大供电电压：	24 V
最小供电电压：	4.2 V	标称供电电压：	10.8 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4 mm
最小 fmax：	0.02 MHz	Base Number Matches：	1

TPS61185RGET 数据手册

TPS61185

www.ti.com

SLVSAA1A –APRIL 2010–REVISED MAY 2010

WLED Driver for Notebooks with PWM Control Interface

Check for Samples: TPS61185

The TPS61185 supports the PWM method for

FEATURES

brightness dimming. Simply tie the unused current

sinks to ground if fewer than eight are needed. During

PWM dimming, each of the eight current regulators is

turned on/off at the duty cycle determined by an

external pulse width modulation (PWM) signal input to

the PWM pin. The frequency at which each current

regulator turns on/off follows the input PWM signal on

the PWMIN pin if the MODE pin is grounded. If the

MODE pin is left floating or tied high, the regulators

turn on/off at the frequency programmed by an

external resistor on the FPWMO pin.

•

4.2 V to 24 V Input Voltage

Integrated 2 A/40 V MOSFET

600 kHz to 2 MHz Programmable Switching

Frequency

•

Adaptive Boost Output for Best Efficiency

Design to Use Small L-C Components

Integrated Loop Compensation

Eight 25 mA Current Sinks

Up to 10 WLED in Series

The TPS61185 IC supports boost switch frequency

programming from 600kHz to 2MHz by an external

resistor on the FSW pin. The device also provides a

driver output for an optional external PFET connected

between the input and inductor for truly disconnecting

the battery from LED during the shutdown or fault

1% Current Matching and Accuracy

PWM Brightness Interface Control

200 mV Ripple Under PWM Dimming

Driver for Input/Output Isolation PFET

Programmable Over Voltage Threshold

protection.

The

device

integrates

resistor

100 Hz to 5 kHz Programmable PWM Dimming

Frequency

programmable over-voltage protection, soft-start, and

thermal shutdown.

•

Up to 20 kHz Direct PWM Dimming Frequency

The TPS61185 IC has a built-in linear regulator to

power the internal circuits of the IC. The device is in a

4 mm × 4 mm QFN package.

Enhanced Electrostatic Discharge Immunity

Level

•

Built-in WLED Open/Short Protection

Over Temperature Protection

Typical Application Circuit

10 mH

4.2V~24V

24 Pin 4 mm × 4 mm QFN Package

4.7 mF

1 MW

4.7 mF

APPLICATIONS

54.9 KW

FAULT

V_IN

SW1 SW2

•

Notebook LCD Display Backlight

PGND1

PGND2

1 mF

VDD

1 mF

OVP

DESCRIPTION

TPS61185

FPWMO

The TPS61185 IC provides highly integrated

solutions for large-size LCD backlighting. This device

has a built-in high efficiency boost regulator with

integrated 2 A/40 V power MOSFET. The eight

current sink regulators provide high precision current

regulation and matching. In total, the device can

support up to 80 LEDs. In addition, the boost output

automatically adjusts its voltage to the WLED forward

voltage to improve efficiency.

715 KW

PWMIN

Open Freq Pro

Direct

MODE

ISET

GND

IFB1

IFB2

IFB3

IFB4

IFB5

IFB6

IFB7

IFB8

62 KW

FSW

AGND

604 KW

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

中文翻译

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TPS61185RGET 替代型号

型号	品牌	替代类型	描述	数据表
TPS61185RGER	TI	类似代替	WLED Driver for Notebooks with PWM Control Interface

与TPS61185RGET相关器件

型号	品牌	获取价格	描述	数据表
TPS61187	TI	获取价格	WLED Driver for Notebooks with PWM Interface and Auto Phase Shift
TPS61187RTJ	TI	获取价格	WLED Driver for Notebooks with PWM Interface and Auto Phase Shift
TPS61187RTJR	TI	获取价格	WLED Driver for Notebooks with PWM Interface and Auto Phase Shift
TPS61187RTJT	TI	获取价格	WLED Driver for Notebooks with PWM Interface and Auto Phase Shift
TPS61193	TI	获取价格	低 EMI、高性能 3 通道 LED 驱动器
TPS61193PWPR	TI	获取价格	低 EMI、高性能 3 通道 LED 驱动器 \| PWP \| 20 \| -40 to 85
TPS61193PWPRQ1	TI	获取价格	适用于汽车照明的低 EMI、高性能 3 通道 LED 驱动器 \| PWP \| 20 \| -
TPS61193-Q1	TI	获取价格	适用于汽车照明的低 EMI、高性能 3 通道 LED 驱动器
TPS61194	TI	获取价格	低 EMI、高性能 4 通道 LED 驱动器
TPS61194PWPR	TI	获取价格	低 EMI、高性能 4 通道 LED 驱动器 \| PWP \| 20 \| -40 to 85

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