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MIC2010-1PCQS

更新时间： 2024-02-01 14:11:26

品牌	Logo	应用领域
麦瑞 - MICREL		电源电路电源管理电路光电二极管控制器
页数	文件大小	规格书
13页	1014K
描述
USB Power Controller

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技术参数
数据手册

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MIC2010-1PCQS 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	SSOP,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.7	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e3	长度：	4.89 mm
湿度敏感等级：	1	信道数量：	2
功能数量：	1	端子数量：	16
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.75 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3.9 mm
Base Number Matches：	1

MIC2010-1PCQS 数据手册

MIC2010/2070

Micrel

Functional Diagram

MAIN

Current

Limit

MAIN

FET

Charge Pump

Gate Control

OUT

AUX

FET

S3#

Current

Limit

RSET

Thermal

Sense

AUX

* 'P' options only

10ms

Timer

Latch

/FAULT

*MIC2070-1/2 Only

To Other Channel

TJ = P × θ + T

where:

Functional Description

The MIC2010/2070 are designed to support the power distri-

butionrequirementsforUSBwakeupfromtheACPIS3state.

It integrates two independent channels under control of input

S3#.WhenS3#isassertedLOW(ACPIS3state)theMIC2010/

2070 will switch a 500mΩ MOSFET switch from the AUX

input to each of its two outputs. In addition the current-limit

threshold will be set to a value specified by a resistor

connected to the RSET inputs. Conversely when the S3#

inputisHIGHtheMIC2010/2070willswitcha100mΩMOSFET

switch from the MAIN inputs to each of its two outputs. The

current-limit threshold is preset to 500mA in this state. The

lower current limit during the ACPI S3 state helps to ensure

thatthestandbysupplymaintainsregulationevenduringfault

conditions.

T = junction temperature

T = ambient temperature

= is the thermal resistance of the package

Current Sensing and Limiting

The current-limit threshold of each channel is preset inter-

nally at 500mA when S3# is deasserted. When S3# is

asserted the current-limit threshold is specified by a resistor

connected to the RSET input. The value of the current-limit

thresholdisdeterminedbytheequation18/R

ohmswhere

SET

is the resistance connected between the RSET pin and

ground. The current-limit threshold should be set at 1.2X of

the applications continous output current requirement.

SET

When an overcurrent condition lasts longer than t

the

Thermal Shutdown

DLY

MIC2070 will activate an internal circuit breaker that will latch

the output off and assert FAULT. The output will remain off

until either the load is removed or EN is toggled. When the

MIC2070 enters a latched output condition a 1mA pull-up

current source is activated. This provides a way to automati-

cally reset the output once the load is removed without the

need to toggle the enable input. Please refer to Figure 7 for

timing details.

Thermal shutdown is employed to protect the device from

damage should the die temperature exceed safe margins

due mainly to short circuit faults. Thermal shutdown shuts off

the output MOSFET and asserts the FAULT output if the die

temperaturereaches140°Candtheoverheatedchannelisin

currentlimit.Theotherchannelisnotaffected.Ifhowever,the

die temperature exceeds 160°C, both channels will be shut

off even if neither channel is in current limit.

The MIC2010 will automatically reset its output when the die

temperature cools down to 120°C. The MIC2010 output and

FAULT signal will continue to cycle on and off until the device

is disabled or the fault is removed. Figure 6 depicts typical

timing. Depending on PCB layout, package, ambient tem-

perature, etc., it may take several hundred milliseconds from

the incidence of the fault to the output MOSFET being shut

Power Dissipation

The device’s junction temperature depends on several fac-

tors such as the load, PCB layout, ambient temperature and

package type. The power dissipated in each channel is

P =R

×I

whereR

istheon-resistanceofthe

DS(on)

DS(on) OUT

internal MOSFETs and I

is the continuous output current.

OUT

Total power dissipation of the device will be the summation of

P for both channels. To relate this to junction temperature,

the following equation can be used:

January 2005

M9999-101104

1...4 5 678 9 10...13

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与MIC2010-1PCQS相关器件

型号	品牌	描述	获取价格	数据表
MIC2010-1PZQS	MICREL	USB Power Controller	获取价格
MIC2010-1PZQSTR	MICREL	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, LEAD FREE, QSOP-16	获取价格
MIC2010-2PCQS	MICREL	USB Power Controller Advance Information	获取价格
MIC2010-2PZQS	MICREL	Power Supply Support Circuit, Adjustable, 2 Channel, PDSO16, LEAD FREE, QSOP-16	获取价格
MIC2012	MICREL	USB Power Controller Advance Information	获取价格
MIC2012	MICROCHIP	The MIC2012 is a dual channel USB power switch designed to support the power distribution	获取价格

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