MP6205 3.3V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch The Future of Analog IC Technology DESCRIPTION FEATURES 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. • • • • • • • • • • • • 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. 500mA Continuous Current Accurate Current Limit 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 APPLICATIONS • • • • The MP6205 is available in QFN8, MSOP8E, SOIC8E packages. Smartphone and PDA Portable GPS Device Set-top-box USB Power Distribution “MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION +5V 1 GND MP6205 2, 3 IN 4 OFF ON EN OUT 6, 7, 8 To VBUS USB Ports FLAG 5 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 Part Number* Enable Maximum Switch Continuous Load Current Maximum Short-Circuit Current @ TA=25°C Package 1100mA MSOP8E QFN8 (2mm x 3mm) SOIC8E MP6205DH Active High MP6205DD Single 500mA MP6205DN Top Marking Temperature 6205D –40°C to +85°C 7CYW MP6205DN * For Tape & Reel, add suffix –Z (eg. MP6205D_–Z). For RoHS Compliant Packaging, add suffix –LF. (eg. MP6205D_–LF–Z) PACKAGE REFERENCE GND 1 TOP VIEW TOP VIEW TOP VIEW 8 OUT GND 1 8 IN 2 7 OUT IN 2 7 IN 3 6 OUT IN 3 6 EN 4 5 FLAG EN 4 5 EXPOSED PAD ON BACKSIDE CONNECT TO GND MSOP8E 1 8 N/C OUT IN 2 7 N/C OUT IN 3 6 OUT FLAG EN 4 5 FLAG EXPOSED PAD ON BACKSIDE CONNECT TO GND EXPOSED PAD ON BACKSIDE CONNECT TO GND QFN8 (2mm x 3mm) 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 MP6205 Rev. 0. 92 9/23/2009 GND N/C Thermal Resistance SOIC8E (2) θJA θJC MSOP8E .................................55 ...... 12 ... °C/W QFN8 (2mm x 3mm) ...............55 ...... 12 ... °C/W SOIC8E ...................................50 ...... 10 ... °C/W Notes: 1) Exceeding these ratings may damage the device. 2) Measured on JESD51-7 4-layer PCB. 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 IN Voltage Range Supply Current Shutdown Current Off Switch Leakage Current Limit Typ 2.7 Single Channel Device Disable, VOUT=float, VIN=5.5V Device Disable, VIN=5.5V 140 1 1 550 Trip Current Under-voltage Lockout Under-voltage Hysteresis FET On Resistance EN Input Logic High Voltage EN Input Logic Low Voltage FLAG Output Logic Low Voltage FLAG Output High Leakage Current Thermal Shutdown Thermal Shutdown Hysteresis Current Ramp (slew rate≤100A/s) on Output Rising Edge 250 90 ISINK=5mA VIN=VFLAG=5.5V Turn Off Time, Toff (5) CL=100μF, RL=11Ω FLAG Deglitch Time EN Input Leakage Reverse Leakage Current 1.95 Max Units 5.5 160 1100 V μA μA μA mA 1.6 A 2.65 0.8 0.4 V mV mΩ V V V 1 μA 0.5 0.5 3 °C °C ms ms ms ms ms 10 ms 15 ms μA μA 130 2 Turn On Time, Ton (5) (4) 1.2 IOUT=100mA and-40°C<TA< 85°C VIN=5.5V, CL=1uF, RL=11Ω VIN=2.7V, CL=1uF, RL=11Ω VIN=5.5V, CL=1uF, RL=11Ω VIN=2.7V, CL=1uF, RL=11Ω CL=100μF, RL=11Ω VOUT Rising Time, Tr (4) VOUT Falling Time, Tf Min 140 20 0.9 1.7 4 OUT=5.5V, IN=GND 8 1 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 1 1 1 GND, Exposed Pad 2, 3 2, 3 2, 3 IN Input Voltage. Accepts 2.7V to 5.5V input. 4 4 4 EN Enable Input. Active High. 5 5 5 FLAG IN-to-OUT Over-current, active-low output flag. Open-Drain. 6, 7, 8 6 6, 7 OUT Power-Distribution Switch Output. - 7, 8 8 N/C Description Ground. Connect exposed pad to GND plane for optimal thermal performance TYPICAL PERFORMANCE CHARACTERISTICS TA = +25ºC, unless otherwise noted. OUTX RL tf tr CL VO(OUTX) 90% 10% 90% 10% TEST CIRCUIT 50% 50% 50% VI(ENX) 50% VI(ENX) toff ton VO(OUTX) 90% ton VO(OUTX) 10% toff 90% 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 0.9 160 3 0.8 140 0.7 120 0.6 100 TURN OFF DELAY (ms) 2.5 2 1.5 1 0.5 0 2.5 3 3.5 4 4.5 5 5.5 0.5 60 0.3 40 0.2 20 0.1 0 6 80 0.4 0 2.5 3 INPUT VOLTAGE (V) 4 4.5 5 5.5 6 2.5 VIN=5V, IO=0.1A 110 100 90 80 2.5 3 3.5 4 4.5 5 5.5 6 TRIP CURRENT (A) CURRENT LIMIT (A) 0.9 0.85 80 70 60 50 40 30 20 10 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.75 2.5 Current Limit Response Time vs. Peak Current 45 40 1.3 35 1.2 30 25 1.1 20 1 15 10 0.9 0.8 6 OUTPUT CURRENT (A) 1.4 0.95 5.5 90 Threshold Trip Current vs. Input Voltage 1 5 VEN=5V 120 VEN=5V 4.5 VEN=5V, IOUT=0.5A INPUT VOLTAGE (V) 1.05 4 Input to Output Voltage vs. Load Current 130 Current Limit vs. Input Voltage 3.5 Static Drain-Source On-State Resistance vs. Input Voltage 140 15 30 45 60 75 90 3 INPUT VOLTAGE (V) INPUT VOLTAGE (V) Static Drain-Source On-State Resistance Variation vs. Ambient Temperature 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -45 -30 -15 0 3.5 INPUT TO OUTPUT VOLTAGE (mV) TURN ON DELAY (ms) VEN=5V 3.5 5 0.8 3 3.5 4 4.5 5 5.5 INPUT VOLTAGE (V) MP6205 Rev. 0. 92 9/23/2009 6 2 2.5 3 3.5 4 4.5 5 INPUT VOLTAGE (V) 5.5 6 0 0 1 2 3 4 5 6 7 8 9 10 PEAK CURRENT (A) 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 on Enabled Device EN 5V/div VOUT 2V/div Flag 2V/div IOUT 0.5A/div IOUT 0.5A/div 4ms/div MP6205 Rev. 0. 92 9/23/2009 Short Circuit Current, Device Enabled into Short Ramped Load on Enabled Device IOUT 0.2A/div 2ms/div www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. 2ms/div 6 MP6205 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHE FUNCTION BLOCK DIAGRAM + UVLO Vref -IN Current Sense -- -- -- OUT -- -- -- -- Charge Pump -Logic --- -- -- EN AMP + 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 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. 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. 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 constantcurrent mode. However, high current may flow for a short period of time before the current-limit circuit can react. Enable 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 Over 10μF capacitor between IN and GND is recommended. This precaution reduces powersupply transients that may cause ringing on the input and improves the immunity of the device to short-circuit transients. 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. +5V 1 GND MP6205 2, 3 IN 4 OFF ON EN OUT 6, 7, 8 To VBUS USB Ports FLAG 5 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 PACKAGE INFORMATION MSOP8E (EXPOSED PAD) 0.087(2.20) 0.099(2.50) 0.114(2.90) 0.122(3.10) 5 8 0.114(2.90) 0.122(3.10) PIN 1 ID (NOTE 5) 0.187(4.75) 0.199(5.05) 0.062(1.58) 0.074(1.88) Exposed Pad 0.010(0.25) 0.014(0.35) 4 1 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) 0.006(0.15) FRONT VIEW NOTE: 0.181(4.60) 0.040(1.00) 0.016(0.40) 0.004(0.10) 0.008(0.20) SIDE VIEW 0.100(2.54) 0.075(1.90) 0o-6o 0.016(0.40) 0.026(0.65) 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 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. 0.0256(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) 2.90 3.10 PIN 1 ID MARKING 0.30 0.50 0.18 0.30 1.90 2.10 PIN 1 ID INDEX AREA 1.65 1.85 8 PIN 1 ID SEE DETAIL A 1 1.50 1.70 0.50 BSC 4 5 TOP VIEW BOTTOM VIEW PIN 1 ID OPTION A 0.30x45” TYP. 0.80 1.00 PIN 1 ID OPTION B R0.20 TYP. 0.20 REF 0.00 0.05 SIDE VIEW DETAIL A 2.90 0.70 NOTE: 1.70 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 1.60 0.50 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