MP6205 [MPS]
3.3V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch; 3.3V / 5V ，单通道500毫安限流配电开关
| 型号： | MP6205 |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | 3.3V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch |
| 文件： | 总12页 (文件大小：373K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MP6205
3.3V/5V, Single-Channel 500mA
Current-Limited Power Distribution Switch
The Future of Analog IC Technology
DESCRIPTION
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
500mA Continuous Current
Accurate Current Limit
The MP6205 Power Distribution Switch features
internal current limiting to prevent damage to host
devices due to faulty load conditions. The MP6205
Analog switch features 90mΩ on-resistance and
operates from 2.7V to 5.5V input. It is available with
a guaranteed current limit, making it ideal for load
switching applications. The MP6205 has built-in
protection for both over current and increased
thermal stress. For over current, the device will limit
the current by changing to a constant current mode.
2.7V to 5.5V Supply Range
140uA Quiescent Current
90mΩ MOSFET
Thermal-Shutdown Protection
Under-Voltage Lockout
8ms FLAG Deglitch Time
No FLAG Glitch During Power Up
Reverse Current Blocking
QFN8, MSOP8E, SOIC8E Packages
UL Recognized: E322138
As the temperature increases as a result of short
circuit, the device will shut off. The device will
recover once the device temperature reduces to
approx 120°C.
APPLICATIONS
•
•
•
•
Smartphone and PDA
Portable GPS Device
Set-top-box
The MP6205 is available in QFN8, MSOP8E,
SOIC8E packages.
USB Power Distribution
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
+5V
1
GND
MP6205
6, 7, 8
To VBUS
USB Ports
2, 3
4
OUT
IN
5
EN
FLAG
OFF ON
SINGLE-CHANNEL
UL Recognized Component
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
ORDERING INFORMATION
Maximum
Short-Circuit
Current
Maximum
Top
Marking
Part Number* Enable Switch Continuous
Package
Temperature
Load Current
@ TA=25°C
MP6205DH
MSOP8E
6205D
7CYW
QFN8
(2mm x
3mm)
Active
High
Single
500mA
1100mA
–40°C to +85°C
MP6205DD
MP6205DN
SOIC8E
MP6205DN
* For Tape & Reel, add suffix –Z (eg. MP6205D_–Z). For RoHS Compliant Packaging, add suffix –LF. (eg.
MP6205D_–LF–Z)
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
TOP VIEW
GND
IN
1
2
3
4
8
7
6
5
N/C
GND
IN
1
2
3
4
8
7
6
5
N/C
GND
IN
OUT
OUT
OUT
FLAG
1
2
3
4
8
7
6
5
N/C
OUT
OUT
FLAG
IN
IN
OUT
FLAG
IN
EN
EN
EN
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
MSOP8E
QFN8 (2mm x 3mm)
SOIC8E
Thermal Resistance (2)
MSOP8E.................................55 ...... 12...°C/W
QFN8 (2mm x 3mm) ...............55 ...... 12...°C/W
SOIC8E...................................50 ...... 10...°C/W
θJA
θJC
ABSOLUTE MAXIMUM RATINGS (1)
IN .................................................-0.3V to +6.0V
EN, FLAG, OUT to GND..............-0.3V to +6.0V
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature...............–65°C to +150°C
Operating Temperature..............–40°C to +85°C
Notes:
1) Exceeding these ratings may damage the device.
2) Measured on JESD51-7 4-layer PCB.
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
2
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
ELECTRICAL CHARACTERISTICS (3)
VIN=5V, TA=+25°C, unless otherwise noted.
Parameter
Condition
Min
Typ
Max
5.5
Units
V
IN Voltage Range
Supply Current
Shutdown Current
Off Switch Leakage
Current Limit
2.7
Single Channel
140
1
160
μA
Device Disable, VOUT=float, VIN=5.5V
Device Disable, VIN=5.5V
μA
1
μA
550
1100
1.6
mA
Current Ramp (slew rate≤100A/s) on
Output
Trip Current
1.2
A
Under-voltage Lockout
Rising Edge
1.95
2.65
V
mV
mΩ
V
Under-voltage Hysteresis
FET On Resistance
250
90
IOUT=100mA and-40°C<TA< 85°C
130
EN Input Logic High Voltage
EN Input Logic Low Voltage
FLAG Output Logic Low Voltage
2
0.8
0.4
V
ISINK=5mA
V
FLAG Output High Leakage
Current
VIN=VFLAG=5.5V
1
μA
Thermal Shutdown
140
°C
Thermal Shutdown Hysteresis
20
0.9
1.7
°C
ms
ms
ms
ms
VOUT Rising Time, Tr (4)
VIN=5.5V, CL=1uF, RL=11ꢀ
VIN=2.7V, CL=1uF, RL=11ꢀ
VIN=5.5V, CL=1uF, RL=11ꢀ
VIN=2.7V, CL=1uF, RL=11ꢀ
(4)
0.5
0.5
3
VOUT Falling Time, Tf
Turn On Time, Ton (5)
Turn Off Time, Toff (5)
FLAG Deglitch Time
EN Input Leakage
CL=100μF, RL=11ꢀ
CL=100μF, RL=11ꢀ
ms
ms
ms
μA
μA
10
15
4
8
1
Reverse Leakage Current
OUT=5.5V, IN=GND
0.2
NOTE:
3) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
4) Measured from 10% to 90%.
5) Measured from (50%) EN signal to (90%) output signal.
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
3
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
PIN FUNCTIONS
Pin #
MSOP
Pin #
SOIC
Pin #
QFN
Name
Description
GND,
Exposed Pad
Ground. Connect exposed pad to GND plane for optimal thermal
performance
1
2, 3
4
1
2, 3
4
1
2, 3
4
IN
Input Voltage. Accepts 2.7V to 5.5V input.
Enable Input. Active High.
EN
5
6, 7, 8
-
5
6
5
6, 7
8
IN-to-OUT Over-current, active-low output flag. Open-Drain.
Power-Distribution Switch Output.
FLAG
OUT
N/C
7, 8
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25ºC, unless otherwise noted.
OUT
X
tf
tr
CL
RL
VO
(OUT
X
)
90%
10%
90%
10%
TEST CIRCUIT
50%
90%
50%
50%
50%
VI(ENX)
VI(ENX)
toff
ton
ton
toff
90%
V
O
(OUT
X
)
VO(OUTX)
10%
10%
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
4
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5.5V, CL = 2.2µF, TA = +25ºC, unless otherwise noted.
Supply Current, Output Enabled
vs. Input Voltage
VEN=5V
160
140
120
100
80
3.5
3
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5
2
1.5
1
60
40
0.5
20
0
0
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
VIN=5V, IO=0.1A
Static Drain-Source On-State
Resistance vs. Input Voltage
VEN=5V, IOUT=0.5A
Input to Output Voltage vs.
Load Current
VEN=5V
30
25
20
15
10
5
140
130
120
110
100
90
90
80
70
60
50
40
30
20
10
0
0
-5
-10
-15
-20
-25
-30
80
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7
OUTPUT CURRENT (A)
-45 -30 -15 0 15 30 45 60 75 90
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
Current Limit
vs. Input Voltage
VEN=5V
Current Limit Response Time
vs. Peak Current
Threshold Trip Current vs.
Input Voltage
1.05
45
40
35
30
25
20
15
10
5
1.4
1.3
1.2
1
0.95
0.9
1.1
1
0.85
0.8
0.9
0.8
0
0.75
2
2.5
3
3.5
4
4.5
5
5.5
6
0 1 2 3 4 5 6 7 8 9 10
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
PEAK CURRENT (A)
INPUT VOLTAGE (V)
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
5
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN=5.5V, CL = 2.2µF, TA = +25ºC, unless otherwise noted.
VOUT
2V/div
VOUT
2V/div
EN
2V/div
EN
5V/div
EN
5V/div
VOUT
2V/div
1s/div
VOUT
2V/div
EN
2V/div
EN
2V/div
Flag
5V/div
VOUT
2V/div
IOUT
2A/div
IOUT
0.2A/div
1ms/div
4ms/div
Threshold Trip Current with
Ramped Load
Ramped Load
on Enabled Device
Short Circuit Current,
Device Enabled into Short
on Enabled Device
EN
5V/div
VOUT
2V/div
Flag
2V/div
IOUT
0.5A/div
IOUT
0.2A/div
IOUT
0.5A/div
4ms/div
2ms/div
2ms/div
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
6
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
FUNCTION BLOCK DIAGRAM
+
UVLO
Vref
--
OUT
IN
--
--
Current
Sense
--
--
-- -- --
Charge
Pump
--
Logic
AMP
+
- -
--
--
--
EN
FLAG
Deglitch
Thermal
Sense
--
-- GND
Figure 2—Functional Block Diagram
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
7
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
Thermal Protection
DETAILED DESCRIPTION
Over Current
When the load exceeds trip current (minimum
threshold current triggering constant-current
mode) or a short is present, MP6205 switches
into to a constant-current mode (current limit
value). MP6205 will be shutdown only if the
overcurrent condition stays long enough to
trigger thermal protection.
The purpose of thermal protection is to prevent
damage in the IC by allowing exceptive current to
flow and heating the junction. The die
temperature is internally monitored until the
thermal limit is reached. Once this temperature is
reached, the switch will turn off and allow the
chip to cool. The switch has a built-in hysteresis.
Trigger overcurrent protection for different
overload conditions occurring in applications:
Under-voltage Lockout (UVLO)
This circuit is used to monitor the input voltage to
ensure that the MP6205 is operating correctly.
This UVLO circuit also ensures that there is no
operation until the input voltage reaches the
minimum spec.
1) The output has been shorted or overloaded
before the device is enabled or input applied.
MP6205 detects the short or overload and
immediately switches into a constant-current
mode.
Enable
2) A short or an overload occurs after the device
is enabled. After the current-limit circuit has
been tripped (reached the trip current
threshold), the device switches into constant-
current mode. However, high current may
flow for a short period of time before the
current-limit circuit can react.
The logic pin disables the chip to reduce the
supply current. The device will operate once the
enable signal reaches the appropriate level. The
input is compatible with both COMS and TTL.
3) Output current has been gradually increased
beyond the recommended operating current.
The load current rises until the trip current
threshold is reached or until the thermal limit
of the device is exceeded. The MP6205 is
capable of delivering current up to the trip
current threshold without damaging the
device. Once the trip threshold has been
reached, the device switches into its
constant-current mode.
Flag Response
The FLAG pin is an open drain configuration.
This FAULT will report a fail mode after an 8ms
deglitch timeout. This is used to ensure that no
false fault signals are reported. This internal
deglitch circuit eliminates the need for extend
components. The FLAG pin is not deglitched
during an over temp. or a voltage lockout.
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
8
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
APPLICATION INFORMATION
Power-Supply Considerations
In order to achieve smaller output load transient,
placing a high-value electrolytic capacitor on the
output pin(s) is recommended when the output
load is heavy.
Over 10μF capacitor between IN and GND is
recommended. This precaution reduces power-
supply transients that may cause ringing on the
input and improves the immunity of the device to
short-circuit transients.
+5V
1
GND
MP6205
6, 7, 8
To VBUS
USB Ports
2, 3
IN
OUT
4
5
EN
FLAG
OFF ON
SINGLE-CHANNEL
Figure 3—Application Circuit
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
9
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
MSOP8E (EXPOSED PAD)
PACKAGE INFORMATION
0.087(2.20)
0.099(2.50)
0.114(2.90)
0.122(3.10)
5
8
0.187(4.75)
0.199(5.05)
0.062(1.58)
0.074(1.88)
0.114(2.90)
0.122(3.10)
PIN 1 ID
(NOTE 5)
Exposed Pad
4
1
0.010(0.25)
0.014(0.35)
0.0256(0.65)BSC
BOTTOM VIEW
TOP VIEW
GAUGE PLANE
0.010(0.25)
0.030(0.75)
0.037(0.95)
0.043(1.10)MAX
SEATING PLANE
0.002(0.05)
0.004(0.10)
0.008(0.20)
0.016(0.40)
0.026(0.65)
0o-6o
0.006(0.15)
FRONT VIEW
SIDE VIEW
NOTE:
0.100(2.54)
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS
IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSION OR GATE BURR.
0.075(1.90)
0.181(4.60)
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR
PROTRUSION.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
5) PIN 1 IDENTIFICATION HAS HALF OR FULL CIRCLE OPTION.
6) DRAWING MEETS JEDEC MO-187, VARIATION AA-T.
7) DRAWING IS NOT TO SCALE.
0.040(1.00)
0.016(0.40)
0.0256(0.65)BSC
RECOMMENDED LAND PATTERN
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
10
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
QFN8 (2mm x 3mm)
PIN 1 ID
SEE DETAIL A
2.90
3.10
0.30
0.50
1.65
1.85
PIN 1 ID
MARKING
0.18
0.30
8
5
1
1.90
2.10
1.50
1.70
0.50
BSC
PIN 1 ID
INDEX AREA
4
TOP VIEW
BOTTOM VIEW
PIN 1 ID OPTION B
R0.20 TYP.
PIN 1 ID OPTION A
0.30x45”TYP.
0.80
1.00
0.20 REF
0.00
0.05
SIDE VIEW
DETAIL A
2.90
1.70
NOTE:
0.70
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.
3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.
4) DRAWING CONFORMS TO JEDEC MO-229, VARIATION VCED-2.
5) DRAWING IS NOT TO SCALE.
0.25
0.50
1.60
RECOMMENDED LAND PATTERN
MP6205 Rev. 0. 92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
11
MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE
SOIC8E (EXPOSED PAD)
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP6205 Rev. 0.92
9/23/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
12
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