MP6215 3.3V/5V, Single-Channel 1.5A Current-Limited Power Distribution Switch The Future of Analog IC Technology DESCRIPTION FEATURES The MP6215 Power Distribution Switch features internal current limiting to prevent damage to host devices due to faulty load conditions. The MP6215 operates from a 3.3V or 5V nominal input voltage and includes a 90mΩ Power MOSFET to handle up to 1.5A continuous load with a 2.3A typical current limit. The MP6215 has built-in protection for both over current and increased thermal stress. For over-current protection (OCP), the device will limit the current by going into a constant current mode. • • • • • • • • • When continuous output overload condition exceeds power dissipation of the package, the thermal protection will shut the part off. The device will recover once the device temperature reduces to approx 120°C. • • • • • The MP6215 is available in an MSOP8 package with exposed pad. 1.5A Continuous Current Accurate Current Limit 2.7V to 5.5V Supply Range 140uA Quiescent Current Thermal-Shutdown Protection Under-Voltage Lockout 8ms FLAG Deglitch Time No FLAG Glitch During Power Up Reverse Current Blocking APPLICATIONS Notebook PC Set-top-box Telecom and Network Systems PC Card Hot Swap USB Power Distribution “MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 3.3V / 5V Input 1 GND MP6215 2, 3 IN 4 EN OUT 6, 7, 8 To VBUS USB Ports FLAG 5 SINGLE-CHANNEL MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 1 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH PACKAGE REFERENCE TOP VIEW GND 1 8 OUT IN 2 7 OUT IN 3 6 OUT EN 4 5 FLAG EXPOSED PAD ON BACKSIDE MP6215 Single-Channel * Part Number Enable Switch Maximum Continuous Load Current Typical ShortCircuit Current @ TA=25C MP6215DH Active High Single 1.5A 2.3A Package Temperature MSOP8 (EP) –40°C to +85°C For Tape & Reel, add suffix –Z (eg. MP6215DH–Z) For RoHS Compliant Packaging, add suffix –LF (eg. MP6215DH–LF–Z) ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance IN .................................................-0.3V to +6.5V ON, FLAG, OUT to GND..............-0.3V to +6.5V Junction Temperature ...............................150°C Lead Temperature ....................................260°C Storage Temperature............... –65°C to +150°C Operating Temperature.............. –40°C to +85°C MSOP8E................................. 55 ...... 12... °C/W MP6215 Rev. 0.9 3/23/2010 (2) θJA θJC 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. © 2010 MPS. All Rights Reserved. 2 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH ELECTRICAL CHARACTERISTICS (3) VIN=5V, TA=+25°C, unless otherwise noted. Parameter Condition IN Voltage Range Supply Current Shutdown Current Off Switch Leakage Min Typ 2.7 EN=High, IOUT=0 Device Disable, VOUT=float, VIN=5.5V Device Disable, VIN=5.5V Current Limit 140 1 1 1.6 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 VOUT Rising Time, Tr VOUT Falling Time, Tf Rising Edge 2.3 1.95 Max Units 5.5 160 V µA µA µA 3.0 A 2.65 0.4 0.4 V mV mΩ V V V 1 µA 250 85 IOUT=100mA 2 ISINK=5mA VIN=VFLAG=5.5V 140 20 °C °C VIN=5.5V, CL=1uF, RL=5Ω 0.9 ms VIN=2.7V, CL=1uF, RL=5Ω 1.7 ms VIN=5.5V, CL=1uF, RL=5Ω 0.5 ms VIN=2.7V, CL=1uF, RL=5Ω 0.5 ms Turn On Time, Ton CL=100µF, RL=5Ω 3 ms Turn Off Time, Toff CL=100µF, RL=5Ω 10 ms 15 ms FLAG Deglitch Time EN Input Leakage Reverse Leakage Current 4 -1 OUT=5.5V, IN=GND 8 0.2 µA µA NOTE: 3) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization. MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 3 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH PIN FUNCTIONS MSOP8E Name Description 1 2, 3 4 GND IN EN Ground. Input Voltage. Accepts 2.7V to 5.5V input. Active High 5 FLAG IN-to-OUT Over-current, active-low output flag. Open-Drain. 6, 7, 8 OUT IN-to-OUT Power-Distribution Output (for all 3 output pins) 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 MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 4 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH TYPICAL PERFORMANCE CHARACTERISTICS TA = +25ºC, unless otherwise noted. VEN=5V, IO=1.5A, CL=2.2uF 0.4 160 3.5 0.35 140 3 2.5 2 1.5 1 0.5 3 3.5 4 4.5 5 5.5 0.3 0.25 0.2 0.15 0.1 0.05 0 2.5 6 INPUT VOLTAGE (V) 3.5 4 4.5 5 5.5 0.4 120 0.2 110 100 0 90 5 5.5 80 2.5 6 INPUT VOLTAGE (V) Current Limit vs. Input Voltage VEN=5V, CL=2.2uF 2.5 2.45 2.4 2.35 5 5.5 INPUT VOLTAGE (V) MP6215 Rev. 0.9 3/23/2010 3 3.5 4 4.5 5 5.5 INPUT VOLTAGE (V) 6 6 6 250 Vin=5.5V Vin=5V 200 Vin=4.5V Vin=3.3V 150 Vin=2.7V 100 50 0 0 0.5 1 1.5 2 VEN=5V, VIN=5V, CL=2.2uF 3 2.8 2.6 2.4 3 3.5 4 4.5 5 5.5 INPUT CURRENT (V) 5 5.5 Current Limit Response Time vs. Peak Voltage 3.2 2.2 2.5 4 4.5 OUTPUT CURRENT (A) sCURRENT LIMIT RESPONSE TIME (uS) 2.55 THRESHOLD TRIP CURRENT (A) 2.6 4 4.5 3 3.5 Input to Output Voltage vs. Load Current VEN=5V, CL=2.2uF 2.65 3.5 20 Threshold Trip Current vs. Input Voltage 2.7 3 40 VEN=5V, CL=2.2uF 130 2.3 2.5 60 INPUT VOLTAGE (V) 140 4.5 80 VEN=5V, IOUT=1.5A, CL=2.2uF 0.6 4 100 0 2.5 6 150 3 3.5 120 Static Drain-Source On-State Resistance vs. Input Voltage VEN=0V, CL=2.2uF 0.8 -0.2 2.5 VEN=5V, CL=2.2uF INPUT VOLTAGE (V) Supply Current, Output Disabled vs. Input Voltage SUPPLY CURRENT (uA) 3 INPUT TO OUTPUT VOLTAGE (mV) 0 2.5 SUPPLY CURRENT (uA) 4 TURN OFF DELAY (ms) TURN ON DELAY (mS) VEN=5V, IO=1.5A, CL=2.2uF CURRENT LIMIT (A) Supply Current, Output Enabled vs. Input Voltage Turn off Delay vs. Input Votage Turn on Delay vs. Input Votage 6 30 25 20 15 10 5 0 3 5 7 9 11 13 PEAK CURRENT (A) www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 5 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH TYPICAL PERFORMANCE CHARACTERISTICS TA = +25ºC, unless otherwise noted. (continued) VOUT 2V/div VOUT 2V/div EN 5V/div EN 5V/div VOUT 2V/div EN 5V/div 200us/div VOUT 2V/div VOUT 2V/div IOUT 500mA/div EN 5V/div EN 5V/div IOUT 1A/div 1ms/div Flag 5V/div Flag 5V/div IOUT 500mA/div IOUT 1A/div 1ms/div MP6215 Rev. 0.9 3/23/2010 IOUT 1A/div EN 5V/div 1ms/div www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 2ms/div 6 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH FUNCTION BLOCK DIAGRAM UVLO + Vref IN Current Sense -- -- -- -- OUT -- -- -- Charge Pump -AMP Logic -- FLAG -- -- -- EN + Deglich Thermat Sense -- -- GND Figure2—Functional Block Diagram DETAILED DESCRIPTION Over Current When the load exceeds trip current (minimum threshold current triggering constant-current mode) or a short is present, MP6215 switches into to a constant-current mode (current limit value). MP6215 will be shutdown only if the overcurrent condition stays long enough to trigger thermal protection. Trigger overcurrent protection for different overload conditions occurring in applications: 1) The output has been shorted or overloaded before the device is enabled or input applied. MP6215 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. MP6215 Rev. 0.9 3/23/2010 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 MP6215 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 constantcurrent 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. www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 7 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH 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. Under-voltage Lockout (UVLO) This circuit is used to monitor the input voltage to ensure that the MP6215 is operating correctly. This UVLO circuit also ensures that is no operation until the input voltage reaches the minimum spec. Enable The logic pin disables the switch to reduce overall supply current .Once the EN pin reaches Logic HIGH, the MP6215 is enabled. MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 8 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH APPLICATION INFORMATION Power-Supply Considerations A ceramic bypass capacitor between IN and GND, close to the device, is recommended. Placing a high-value electrolytic capacitor on the output pin(s) is recommended when the output load is heavy. This precaution reduces powersupply transients that may cause ringing on the input. Optionally, bypassing the output with a ceramic capacitor improves the immunity of the device to short-circuit transients. MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 9 MP6215 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH 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 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. MP6215 Rev. 0.9 3/23/2010 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. 10