TPS541602.5A电源IC_TPS54160COMP引脚资源-CSDN文库

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### TPS54160 2.5A 电源IC关键知识点解析 #### 一、产品概述 TPS54160是一款高效的直流到直流（DC/DC）开关电源转换器，由德州仪器（Texas Instruments, TI）设计制造。这款器件能够支持最高60V的输入电压，并能提供高达2.5A的输出电流，适用于多种工业及商业应用场合。 #### 二、主要特点 1. **内置0.8V参考电压**：TPS54160内置了一个0.8V的电压参考源，可以为系统提供稳定的基准电压。 2. **宽输入电压范围**：支持3.5V至60V的输入电压范围，这使得它能够在多种电源环境下稳定工作。 3. **MSOP-10封装**：采用了MSOP-10封装技术，其中包含了PowerPAD™热增强功能，提高了散热效率。 4. **低侧MOSFET阻抗**：内部集成了一个阻值为200mΩ的高侧MOSFET，有助于提高转换效率。 5. **SwitcherPro软件支持**：提供了SwitcherPro™软件工具的支持，用户可以通过该软件进行参数设置与仿真测试。 6. **脉冲跳过模式**：在轻负载条件下，通过脉冲跳过模式提高转换效率。 7. **低静态电流**：在运行时，静态电流仅为116mA；在关断状态下，静态电流可降至1.3mA。 8. **可调节开关频率**：支持100kHz至2.5MHz的宽范围开关频率，可以根据实际需求优化效率或减小外部组件尺寸。 9. **同步外部时钟**：能够与外部时钟同步工作，便于实现多路电源同步。 10. **可调慢启动/排序**：通过慢启动引脚控制输出电压上升斜率，也可以用于实现多路电源的排序。 11. **UVLO与PG信号**：具备可调欠压锁定(Undervoltage Lock Out, UVLO)电压和滞后特性，以及一个开放漏极的电源良好(Power Good, PG)信号输出。 #### 三、应用场景 1. **工业和商用低功耗系统**：如12V、24V和48V的工业电源系统。 2. **汽车后市场配件**：例如车载视频系统、GPS导航设备等。 3. **其他低功耗电子设备**：适用于需要高效电源管理的各种便携式或固定安装的电子设备。 #### 四、工作原理和技术细节 - **电流模式控制**：TPS54160采用电流模式控制技术，这意味着它能够通过检测电流来进行闭环控制，从而简化了外部补偿网络的设计，并提供了灵活的元件选择。 - **低纹波脉冲跳过模式**：当负载较轻时，通过脉冲跳过模式降低无负载时的调节输出电流，从而减少了静态功耗。 - **可调UVLO**：欠压锁定(UVLO)电压默认设定为2.5V，但可以通过启用引脚进行调整。 - **慢启动与跟踪**：慢启动引脚不仅可以控制输出电压的上升速度，还可以配置成用于多路电源之间的跟踪。 - **电源良好信号**：当输出电压处于标称值的93%到107%之间时，开放漏极的电源良好(PG)信号将激活，指示输出正常。 #### 五、封装与尺寸 TPS54160采用10针热增强型MSOP PowerPAD封装，这种封装方式不仅紧凑，而且具有良好的散热性能，适合于空间受限的应用环境。 #### 六、简化电路图虽然原始资料中的简化电路图被截断，但从提供的信息可以看出，TPS54160通常需要连接以下引脚： - VIN (输入电压) - GND (接地) - BOOT (启动电压) - VSENSE (电压检测) - COMP (补偿) - EN (使能) - RT/CLK (频率/时钟) - SS/TR (慢启动/跟踪) - PWRGD (电源良好) TPS54160作为一款高性能的DC/DC转换器，在各种电源管理系统中发挥着重要作用。其丰富的功能特性和广泛的适用性使其成为许多电子设备的理想选择。

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VIN

GND

BOOT

VSENSE

COMP

TPS54160

RT /CLK

SS /TR

PWRGD

0 0.25 0.50 0.75 1.75 2.00

Load Current (A)

Efficiency (%)

1.00 1.25 1.50

= 12 V

OUT

= 3.3 V

= 1200 kHz

TPS54160

www.ti.com

SLVS795C –OCTOBER 2008–REVISED OCTOBER 2010

1.5-A, 60-V, STEP-DOWN

SWIFT™ DC/DC CONVERTER WITH ECO-MODE™

Check for Samples: TPS54160

FEATURES

• 0.8-V Internal Voltage Reference

• 3.5-V to 60-V Input Voltage Range

• MSOP-10 Package With PowerPAD™

• 200-mΩ High-Side MOSFET • Supported by SwitcherPro™ Software Tool

(http://focus.ti.com/docs/toolsw/folders/print/s

• High Efficiency at Light Loads with a Pulse

witcherpro.html)

Skipping Eco-Mode™

• For SWIFT™ Documentation, See the TI

• 116-mA Operating Quiescent Current

Website at http://www.ti.com/swift

• 1.3-mA Shutdown Current

• 100-kHz to 2.5-MHz Switching Frequency

APPLICATIONS

• Synchronizes to External Clock

• 12-V, 24-V and 48-V Industrial and Commercial

• Adjustable Slow Start/Sequencing

Low Power Systems

• Aftermarket Auto Accessories: Video, GPS,

• UV and OV Power Good Output

Entertainment

• Adjustable UVLO Voltage and Hysteresis

DESCRIPTION

The TPS54160 device is a 60-V, 1.5-A, step down regulator with an integrated high-side MOSFET. Current mode

control provides simple external compensation and flexible component selection. A low ripple pulse skip mode

reduces the no load, regulated output supply current to 116 mA. Using the enable pin, shutdown supply current is

reduced to 1.3 mA.

Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage

startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open

drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold

back and thermal shutdown protects the part during an overload condition.

The TPS54160 is available in 10-pin thermally enhanced MSOP PowerPAD package.

SIMPLIFIED SCHEMATIC

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.

2Eco-Mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.

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.

TPS54160

SLVS795C –OCTOBER 2008–REVISED OCTOBER 2010

www.ti.com

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

Table 1. ORDERING INFORMATION

(1)

PACKAGE TRANSPORT MEDIA QUANTITY PART NUMBER

Tube 80 TPS54160DGQ

–40°C to 150°C 10-Pin MSOP

Tape and Reel 2500 TPS54160DGQR

(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

(1)

Over operating temperature range (unless otherwise noted).

VALUE UNIT

VIN –0.3 to 65

(2)

–0.3 to 5

BOOT 73

VSENSE –0.3 to 3

Input voltage V

COMP –0.3 to 3

PWRGD –0.3 to 6

SS/TR –0.3 to 3

RT/CLK –0.3 to 3.6

BOOT-PH 8

Output voltage PH –0.6 to 65 V

PH, 10-ns Transient –2 to 65

Voltage Difference PAD to GND ±200 mV

EN 100 mA

BOOT 100 mA

Source current VSENSE 10 mA

PH Current Limit A

RT/CLK 100 mA

VIN Current Limit A

COMP 100 mA

Sink current

PWRGD 10 mA

SS/TR 200 mA

Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A) 1 kV

Electrostatic Discharge (CDM) QSS 009-147 (JESD22-C101B.01) 500 V

Operating junction temperature –40 to 150 °C

Storage temperature –65 to 150 °C

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) See the Enable section and Adjusting Undervoltage Lockout section of this datasheet for details.

Product Folder Link(s): TPS54160

TPS54160

www.ti.com

SLVS795C –OCTOBER 2008–REVISED OCTOBER 2010

THERMAL INFORMATION

TPS54160

THERMAL METRIC

(1)(2)

DGQ UNITS

10 PINS

Junction-to-ambient thermal resistance (standard board) 62.5

Junction-to-ambient thermal resistance (custom board)

(3)

JCtop

Junction-to-case (top) thermal resistance 83

Junction-to-board thermal resistance 28 °C/W

Junction-to-top characterization parameter 1.7

Junction-to-board characterization parameter 20.1

JCbot

Junction-to-case (bottom) thermal resistance 21

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

(2) Power rating at a specific ambient temperature TA should be determined with a junction temperature of 150°C. This is the point where

distortion starts to substantially increase. See power dissipation estimate in application section of this data sheet for more information

(3) Test boards conditions:

(a) 3 inches x 3 inches, 2 layers, thickness: 0.062 inch

(b) 2 oz. copper traces located on the top of the PCB

(d) 6 thermal vias (13mil) located under the device package

ELECTRICAL CHARACTERISTICS

= –40°C to 150°C, VIN = 3.5 to 60V (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

SUPPLY VOLTAGE (VIN PIN)

Operating input voltage 3.5 60 V

Internal undervoltage lockout

No voltage hysteresis, rising and falling 2.5 V

threshold

Shutdown supply current EN = 0 V, 25°C, 3.5 V ≤ VIN ≤ 60 V 1.3 4

Operating : nonswitching supply

VSENSE = 0.83 V, VIN = 12 V, 25°C 116 136

current

ENABLE AND UVLO (EN PIN)

Enable threshold voltage No voltage hysteresis, rising and falling, 25°C 0.9 1.25 1.55 V

Enable threshold +50 mV –3.8

Input current mA

Enable threshold –50 mV –0.9

Hysteresis current –2.9 mA

VOLTAGE REFERENCE

= 25°C 0.792 0.8 0.808

Voltage reference V

0.784 0.8 0.816

HIGH-SIDE MOSFET

VIN = 3.5 V, BOOT-PH = 3 V 300

On-resistance mΩ

VIN = 12 V, BOOT-PH = 6 V 200 410

ERROR AMPLIFIER

Input current 50 nA

Error amplifier transconductance (g

) –2 mA < I

COMP

< 2 mA, V

COMP

= 1 V 97 mMhos

–2 mA < I

COMP

< 2 mA, V

COMP

= 1 V,

Error amplifier transconductance (g

)

26 mMhos

during slow start

VSENSE

= 0.4 V

Error amplifier dc gain V

VSENSE

= 0.8 V 10,000 V/V

Error amplifier bandwidth 2700 kHz

Error amplifier source/sink V

(COMP)

= 1 V, 100-mV overdrive ±7 mA

COMP to switch current

6 A/V

transconductance

Product Folder Link(s): TPS54160

RT/CLK

BOOT

SS/TR

VIN

PWRGD

VSENSE

COMP

GND

DGQ PowerPAD PACKAGE

(Top View)

TPS54160

www.ti.com

SLVS795C –OCTOBER 2008–REVISED OCTOBER 2010

DEVICE INFORMATION

PIN CONFIGURATION

PIN FUNCTIONS

I/O DESCRIPTION

NAME NO.

A bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor is below the

BOOT 1 O

minimum required by the output device, the output is forced to switch off until the capacitor is refreshed.

Error amplifier output, and input to the output switch current comparator. Connect frequency compensation

COMP 8 O

components to this pin.

Enable pin, internal pull-up current source. Pull below 1.2 V to disable. Float to enable. Adjust the input

EN 3 I

undervoltage lockout with two resistors.

GND 9 – Ground

PH 10 I The source of the internal high-side power MOSFET.

Thermal Pad 11 – GND pin must be electrically connected to the exposed pad on the printed circuit board for proper operation.

An open drain output, asserts low if output voltage is low due to thermal shutdown, dropout, over-voltage or

PWRGD 6 O

EN shut down.

Resistor Timing and External Clock. An internal amplifier holds this pin at a fixed voltage when using an

external resistor to ground to set the switching frequency. If the pin is pulled above the PLL upper threshold,

RT/CLK 5 I a mode change occurs and the pin becomes a synchronization input. The internal amplifier is disabled and

the pin is a high impedance clock input to the internal PLL. If clocking edges stop, the internal amplifier is

re-enabled and the mode returns to a resistor set function.

Slow-start and Tracking. An external capacitor connected to this pin sets the output rise time. Since the

SS/TR 4 I

voltage on this pin overrides the internal reference, it can be used for tracking and sequencing.

VIN 2 I Input supply voltage, 3.5 V to 60 V.

VSENSE 7 I Inverting node of the transconductance (g

) error amplifier.

Product Folder Link(s): TPS54160

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