NUS6160MN Low Profile Overvoltage Protection IC with Integrated MOSFET This device represents a new level of safety and integration by combining an overvoltage protection circuit (OVP) with a dual 20 V P−channel power MOSFET. The OVP is specifically designed to protect sensitive electronic circuitry from overvoltage transients and power supply faults. During such events, the IC quickly disconnects the input supply from the load, thus protecting it. The integration of the additional transistor and power MOSFET reduces layout space and promotes better charging performance. The IC is optimized for applications that use an external AC−DC adapter or a car accessory charger to power a portable product or recharge its internal batteries. Features • • • • • • • • Overvoltage Turn−Off Time of Less Than 1.5 ms Undervoltage Lockout Protection; 3.0 V, Nominal High Accuracy Undervoltage Threshold of 5.0% −20 V Integrated P−Channel Power MOSFET Low RDS(on) = 64 mW @ −4.5 V Compact 3.0 x 4.0 mm QFN Package Maximum Solder Reflow Temperature @ 260°C This is a Pb−Free Device Benefits • • • • Provide Battery Protection Integrated Solution Offers Cost and Space Savings Integrated Solution Improves System Reliability Optimized for Commercial PMUs from Top Suppliers http://onsemi.com MARKING DIAGRAM 1 NUS 6160 ALYWG G QFN22 CASE 485AT NUS6160 = Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device Package Shipping† NUS6160MNTWG QFN22 (Pb−Free) 3000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Applications • Portable Computers and PDAs • Cell Phones and Handheld Products • Digital Cameras © Semiconductor Components Industries, LLC, 2008 December, 2008 − Rev. 0 Publication Order Number: NUS6160MN/D En GND In N/C N/C NUS6160MN 18 22 Out 17 1 N/C N/C N/C N/C Gate1 Flag Drain1 Gate2 Drain2 6 12 11 Drain2 Source1 Drain1 Source2 7 N/C Drain2 Drain1 FETREG Drain2 FETSW Drain1 Drain1 (Top View) Figure 1. Pinout Vbat 15 1 8 FLAG 3 FETSW 20 Wall Adaptor IN 4, 5, 6, 7 OUT 10 GND EN NUS6160 14 FETREG 18 19 9, 11, 13 Battery Figure 2. Typical Charging Solution http://onsemi.com 2 ChargeSW ChargeREG NUS6160MN MAXIMUM RATINGS (TJ = 25°C, unless otherwise stated) Rating VIN to Ground OUT, EN, FLAG Pins Voltage to Ground Symbol Min Max Unit VIN VOUT, VEN, VFLAG −0.3 21 V −0.3 7.0 V Maximum Current from VIN to VOUT (PMOS) Imax 600 mA Drain−to−Source Voltage VDSS −20 V Gate−to−Source Voltage VGS 8.0 V ID −2.0 A Continuous Drain Current, Steady State Pulsed Drain Current, tp = 10 ms −8.0 IDM −4.0 A Source Current IS −1.1 A Operating Ambient Temperature TA −40 85 °C TSTG −55 150 °C 150 °C Storage Temperature Operating Junction Temperature TJ Thermal Resistance (Note 1) 1 in2 (645 mm2) (All devices fully enhanced) OVP FET FETSW FETREG 1 in2 (645 mm2) (OVP and FETSW fully enhanced, 1 V drop across FETREG) OVP FET FETSW FETREG 0.25 in2 (161 mm2) (All devices fully enhanced) OVP FET FETSW FETREG 0.25 in2 (161 mm2) (OVP and FETSW fully enhanced, 1 V drop across FETREG) OVP FET FETSW FETREG qJA °C/W 68 42 46 43 39 80 79 53 56 53 49 92 ESD Performance (Human Body Model) Pins 1, 15, 18, 19, 20 − 2.5 kV Lead Temperature for Soldering Purposes (1/8” from case for 10 s) TL 260 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. 1 oz. copper, double sided board. Thermal impedance requires total for DT calculations. See example in thermal description. http://onsemi.com 3 NUS6160MN PIN DESCRIPTION Pin Name 1 Out Description 3 Gate FETSW This pin is the gate of the upper FET which is normally used for a switch in series with the battery. It is controlled by the PMU. 4, 5, 6, 7 Drain FETSW These pins are the drain of the upper FET. For the lowest on resistance connect all pins together. This set of pins must be connected to the source of the lower (regulator) FET, Pin 10. 8 Source FETSW This pin is the source of the upper FET and must be connected to the output pin of the internal OVP chip (Pin 1). 9, 11, 13 Drain FETREG These pins are the drain of the lower FET which is normally used for the regulation function. It connects to the positive terminal of the battery. 10 Source FETREG 12 N/C 14 Gate FETREG 15 FLAG 2, 16, 17, 21, 22 N/C These pins are connected to the ground of the analog chip. This is a medium impedance connection and should not be used for the ground signal. These pins should either be left floating or connected to ground, but not any other potential. If these pins are connected to ground, the ground pin (19) must still be used. 18 EN The ENABLE pin must be held low for normal operation. When this pin is tied high the unit will be shut down. The state of the enable pin has no impact on the FAULT pin. 19 Gnd This is the ground reference pin for the internal OVP chip. 20 In This pin is the output of the internal OVP chip. It must be connected to the source of the upper FET (Pin 8). This pin is the source of the lower FET and must be connected to the drain pins of the upper FET. This pin has no internal connections and is isolated from all internal circuitry within the chip. This pin is the gate of the lower FET which is normally used for the regulation function in series with the battery. It is controlled by the PMU. The fault flag is an open drain output and therefore requires a pullup resistor. The FLAG pin will be driven low when the input voltage exceeds the OVLO trip level. This pin is the input to the internal OVP chip and connects to the wall, or car adaptor. http://onsemi.com 4 NUS6160MN OVP ELECTRICAL CHARACTERISTICS (Min/Max limits values (−40°C < TA < +85°C) and Vin = +5.0 V. Typical values are TA = +25°C, unless otherwise noted.) Characteristic Input Voltage Range Symbol Vin Undervoltage Lockout Threshold UVLO Undervoltage Lockout Hysteresis UVLOhyst Overvoltage Lockout Threshold OVLO Overvoltage Lockout Hysteresis OVLOhyst Vin versus Vout Dropout Supply Quiescent Current OVLO Supply Current Output Off State Current FLAG Output Low Voltage FLAG Leakage Current Conditions Vdrop Idd Iddovlo Istd Volflag FLAGleak Vin falls down UVLO threshold Max Unit 20 V 2.85 3.0 3.15 V 30 50 70 mV 6.9 7.07 7.4 V 50 100 125 mV Vin = 5 V, I charge = 500 mA 105 200 mV No Load, Vin = 5.25 V 24 35 mA Vin = 8 V 50 85 mA Vin = 5.25 V, EN = 1.2 V 26 37 mA 400 mV Vin rises up OVLO threshold Vin > OVLO, Sink 1 mA on FLAG pin FLAG level = 5 V Vih Vin from 3.3 V to 5.25 V EN Voltage Low Vol Vin from 3.3 V to 5.25 V ENleak Typ 1.2 EN Voltage High EN Leakage Current Min 5.0 nA 1.2 V 0.4 V EN = 5.5 V or GND 170 nA From Vin > UVLO to Vout = 0.8xVin, See Fig 3 & 9 4.0 From Vin > UVLO to FLAG = 1.2 V, See Fig 3 & 10 3.0 toff From Vin > OVLO to Vout ≤ 0.3 V, See Fig 4 & 11 Vin increasing from normal operation to >OVLO at 1V/ms. No output capacitor. 0.8 1.5 ms Alert Delay tstop From Vin > OVLO to FLAG ≤ 0.4 V, See Fig 4 & 12 Vin increasing from normal operation to >OVLO at 1V/ms 1.0 2.0 ms Disable Time tdis From EN 0.4 to 1.2V to Vout ≤ 0.3V, See Fig 5 & 13 Vin = 4.75 V. No output capacitor. 2.0 ms Tsd 150 °C Tsdhyst 30 °C TIMINGS Start Up Delay FLAG going up Delay Output Turn Off Time Thermal Shutdown Temperature Thermal Shutdown Hysteresis NOTE: ton tstart Thermal Shutdown parameter has been fully characterized and guaranteed by design. http://onsemi.com 5 15 ms ms NUS6160MN MOSFET ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise noted, all parameters apply to both FETSW and FETREG) Symbol Test Condition Min Drain−to−Source Breakdown Voltage V(Br)DSS VGS = 0 V, ID = −250 mA −20 Drain−to−Source Breakdown Voltage Temperature Coefficient V(Br)DSS/TJ Characteristic Typ Max Unit OFF CHARACTERISTICS Zero Gate Voltage Drain Current IDSS Gate−to−Source Leakage Current V −15 VGS = 0 V VDS = −16 V mV/°C TJ = 25°C −1.0 TJ = 85°C −5.0 IGSS VDS = 0 V, VGS = "8.0 V VGS(TH) VGS = VDS, ID = −250 mA mA "100 nA −1.5 V ON CHARACTERISTICS (Note 2) Gate Threshold Voltage Gate Threshold Temperature Coefficient VGS(TH)/TJ Drain−to−Source On Resistance RDS(ON) Forward Transconductance gFS −0.45 2.7 mV/°C VGS = −4.5 V, ID = −1.0 A 64 80 mW VGS = −4.5 V, ID = −0.6 A 62 80 VDS = −10 V, ID = −2.9 A 7.0 S 750 pF CHARGES, CAPACITANCES, AND GATE RESISTANCE Input Capacitance CISS Output Capacitance COSS Reverse Transfer Capacitance CRSS Total Gate Charge VGS = 0 V, f = 1.0 MHz, VDS = −16 V 45 QG(TOT) Gate−to−Source Charge QGS Gate−to−Drain Charge QGD 100 7.6 VGS = −4.5 V, VDS = −16 V, ID = −2.6 A 8.6 nC 1.3 2.6 SWITCHING CHARACTERISTICS (Note 3) Turn−On Delay Time Rise Time Turn−Off Delay Time Fall Time td(ON) ns 5.5 tr VGS = −4.5 V, VDD = −16 V, ID = −2.6 A, RG = 2.0 W td(OFF) tf 12 32 23 DRAIN−SOURCE DIODE CHARACTERISTICS Forward Diode Voltage VSD Reverse Recovery Time tRR Charge Time ta Discharge Time tb Reverse Recovery Charge VGS = 0 V, IS = −1.1 A −0.8 20 VGS = 0 V, dIS/dt = 100 A/ms, IS = 1.0 A QRR http://onsemi.com 6 V ns 15 5 0.01 2. Pulse test: pulse width ≤ 300 ms, duty cycle ≤ 2% 3. Switching characteristics are independent of operating junction temperatures −1.2 mC NUS6160MN <OVLO UVLO Vin Vin ton 0.8 Vin Vout Vin − (RDS(on) Figure 3. Start Up Sequence EN tdis Vin − RDS(on) x I 0.3 V tstop 0.4 V Figure 4. Shutdown on Over Voltage Detection 1.2 V Vout I) FLA G 1.2 V EN toff Vout Vin − RDS(on) x I tstart FLAG OVLO 1.2 V OVLO Vin 0.3 V UVLO 3 ms FLAG FLAG Figure 5. Disable on EN = 1 Figure 6. FLAG Response with EN = 1 CONDITIONS IN OUT VIN > OVLO or VIN < UVLO Voltage Detection Figure 7. CONDITIONS IN OUT Voltage Detection Figure 8. http://onsemi.com 7 UVLO < VIN < OVLO NUS6160MN TYPICAL OPERATING CHARACTERISTICS Figure 9. Startup Vin = Ch1, Vout = Ch3 Figure 10. FLAG Going Up Delay Vout = Ch3, FLAG = Ch2 Figure 11. Output Turn Off Time Vin = Ch1, Vout = Ch2 Figure 12. Alert Delay Vout = Ch1, FLAG = Ch3 Figure 13. Disable Time EN = Ch1, Vout = Ch2, FLAG = Ch3 Figure 14. Thermal Shutdown Vin = Ch1, Vout = Ch2, FLAG = Ch3 http://onsemi.com 8 NUS6160MN TYPICAL OPERATING CHARACTERISTICS 450 400 Vin = 3.6 V RDS(on) (mW) 350 300 250 Vin = 5 V 200 150 100 50 0 −50 0 50 100 TEMPERATURE (°C) IQ, SUPPLY QUIESCENT CURRENT (mA) Figure 15. Direct Output Short Circuit Figure 16. RDS(on) vs. Temperature (Load = 500 mA) 180 160 140 120 100 80 125°C 25°C 60 40 −40°C 20 0 1 3 5 7 9 11 13 15 17 19 Vin, INPUT VOLTAGE (V) Figure 17. Supply Quiescent Current vs. Vin http://onsemi.com 9 21 150 NUS6160MN TYPICAL PERFORMANCE CURVES (TJ = 25°C unless otherwise noted) 8 −2.4 V 7 6 5 4 3 2 −1.8 V 1 −1.6 V −1.4 V 0 1 0 2 3 5 4 6 7 7 6 5 4 3 125°C 2 25°C 1 TJ = −55°C 0 8 0 1 1.5 2 3 3.5 0.5 2.5 −VGS, GATE−TO−SOURCE VOLTAGE (VOLTS) Figure 18. On−Region Characteristics Figure 19. Transfer Characteristics 4 1.5 0.2 RDS(on), DRAIN−TO−SOURCE RESISTANCE (NORMALIZED) 0.18 0.16 VGS = −2.5 V 0.14 0.12 0.1 VGS = −4.5 V 0.08 0.06 0.04 0.02 0 8 −VDS, DRAIN−TO−SOURCE VOLTAGE (VOLTS) 2 VGS = −4.5 V 1.3 1.1 0.9 0.7 0.5 −50 6 3 4 5 −ID, DRAIN CURRENT (AMPS) −25 0 25 VGS = 0 V 1000 TJ = 125°C TJ = 100°C 100 10 1 TJ = 25°C 2 3 75 100 125 Figure 21. On−Resistance Variation with Temperature 10000 0.1 50 TJ, JUNCTION TEMPERATURE (°C) Figure 20. On−Resistance vs. Drain Current and Gate Voltage −IDSS, LEAKAGE (nA) RDS(on), DRAIN−TO−SOURCE RESISTANCE (W) 9 TJ = 25°C VGS = −10 V to −2.8 V 9 −ID, DRAIN CURRENT (AMPS) −ID, DRAIN CURRENT (AMPS) 10 4 5 6 7 8 −VDS, DRAIN−TO−SOURCE VOLTAGE (VOLTS) Figure 22. Drain−to−Source Leakage Current vs. Voltage http://onsemi.com 10 150 NUS6160MN TJ = 25°C C, CAPACITANCE (pF) 900 800 700 Ciss 600 500 400 300 200 100 0 Coss Crss 0 2 −VGS −VDS 4 6 8 12 10 14 16 18 20 5 QT 4 3 1 0 ID = −2.7 A TJ = 25°C 8 Figure 24. Gate−to−Source and Drain−to−Source Voltage vs. Total Gate Charge −IS, SOURCE CURRENT (AMPS) 100 td(off) tf tr td(on) 1 10 4 2 1 0 0.4 100 VGS = 0 V TJ = 25°C 3 0.5 0.6 0.7 Figure 25. Resistive Switching Time Variation vs. Gate Resistance 10 10 ms 1 100 ms 1 ms 10 ms 0.01 0.1 0.9 1.0 1.1 1.2 Figure 26. Diode Forward Voltage vs. Current 100 0.1 0.8 −VSD, SOURCE−TO−DRAIN VOLTAGE (VOLTS) RG, GATE RESISTANCE (OHMS) −I D, DRAIN CURRENT (AMPS) t, TIME (ns) 7 4 2 3 5 6 Qg, TOTAL GATE CHARGE (nC) 5 VDD = −10 V ID = −1.0 A VGS = −4.5 V 1 1 0 Figure 23. Capacitance Variation 10 Q2 Q1 2 GATE−TO−SOURCE OR DRAIN−TO−SOURCE VOLTAGE (VOLTS) 1000 −VDS, DRAIN−TO−SOURCE VOLTAGE (VOLTS) 1000 −VGS, GATE−TO−SOURCE VOLTAGE (VOLTS) TYPICAL PERFORMANCE CURVES (TJ = 25°C unless otherwise noted) VGS = −8 V SINGLE PULSE TC = 25°C RDS(on) LIMIT THERMAL LIMIT PACKAGE LIMIT dc 10 1 −VDS, DRAIN−TO−SOURCE VOLTAGE (VOLTS) Figure 27. Maximum Rated Forward Biased Safe Operating Area http://onsemi.com 11 100 NUS6160MN Operational Description in the event of an overvoltage condition to protect the output from a positive overvoltage condition. The low Rds(on), during normal operation will minimize the voltage drop across the device. (See Figure 16). The NUS6160 provides overvoltage protection for positive voltages up to 20 V. A P−Channel FET protects the load connected on the Vout pin, against positive overvoltage conditions. The Output follows the VBUS level until OVLO threshold is reached. ESD Tests The NUS6160 meets the requirements of the IEC61000*4*2, level 4 (Input pin, 1 mF mounted on board). For the air discharge condition, Vin is protected up to $15 kV. In the contact condition, Vin is protected up to ±8 kV ESD. Please refer to Figure 29 to see the IEC 61000−4−2 electrostatic discharge waveform. Undervoltage Lockout (UVLO) To ensure proper operation under all conditions, the device has a built−in undervoltage lock out (UVLO) circuit. As the input ramps from 0 V, the output remains disconnected from input until the Vin voltage is above 3.2 V nominal. The FLAG output is pulled to low as long as Vin does not reach the UVLO threshold. This circuit incorporates hysteresis on the UVLO pin to provide noise immunity to transient condition. Figure 29. IEC 61000−4−2 Curve Thermal Impedance Figure 28. Output Characteristic vs. Vin Due to cross heating of the three dice in the package, the equivalent thetas are given for this device rather than the individual thetas. To calculate the junction temperatures of a single die, the total power must be used. For example, given the following parameters, the die temperatures will be as shown: Idc = 500 mA RDS(on) OVP = 305 mW RDS(on) FETsw = 72 mW FETreg has a 1.0 V Drop Board copper area = 161 mm2 Calculate the individual power dissipations: POVP = (0.50 A)2 x .305 W = 0.076 W PSW = (0.50 A)2 x .072 W = 0.018 W PREG = 0.50 A x 1.0 V = 0.50 W PTOT = 0.076 + 0.018 + 0.50 = 0.594 W From the Maximum ratings table for thetas, 161 mm2 and 1 V drop across FETREG: OVP FET 53°C/W FETSW 49°C/W FETREG 92°C/W The die temperature rises above ambient are: TOVP = 53°C/W x 0.594 W = 32°C TSW = 49°C/W x 0.594 W = 29°C TREG = 92°C/W x 0.594 W = 55°C Overvoltage Lockout (OVLO) To protect connected systems on Vout Pin from overvoltage, the device has a built−in overvoltage lock out (OVLO) circuit. During an overvoltage condition, the output remains disabled until the input voltage is reduced to below the OVLO hysteresis level. The FLAG output is tied to low until Vin is higher than OVLO. This circuit incorporates hysteresis on the OVLO pin to provide noise immunity from transient conditions. FLAG Output The NUS6160 provides a FLAG output, which alerts external systems that a fault has occurred. This pin goes low as soon as the OVLO threshold is exceeded. When Vin level recovers to its normal range the FLAG is set high. The FLAG Pin is an open drain output, thus a pullup resistor (typically 1 MW − Minimum 10 kW) must be provided to Vbattery. EN Input To enable normal operation, the EN pin shall be forced low or connected to ground. A high level on the pin disconnects the OUT Pin from IN Pin. EN does not override an OVLO or UVLO fault. Internal PMOS FET The NUS6160 includes an internal PMOS FET which connects the input to the output pin. This FET is turned off http://onsemi.com 12 NUS6160MN PACKAGE DIMENSIONS QFN22, 3x4, 0.5P CASE 485AT−01 ISSUE B D PIN 1 REFERENCE ÈÈÈ ÈÈÈ ÈÈÈ ÈÈÈ L L A B NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.15 AND 0.30 MM FROM TERMINAL TIP. 4. COPLANARITY APPLIES TO THE EXPOSED PADS AS WELL AS THE TERMINALS. L1 DETAIL A OPTIONAL CONSTRUCTIONS ÉÉ ÉÉ E EXPOSED Cu 2X 0.15 C MOLD CMPD 2X ÉÉÉ ÉÉÉ ÇÇÇ A3 A1 DETAIL B 0.15 C OPTIONAL CONSTRUCTIONS TOP VIEW DETAIL B 0.10 C A 25X 0.08 C NOTE 4 A3 SIDE VIEW C A1 SEATING PLANE SOLDERING FOOTPRINT* G1 D3 22X D4 7 DETAIL A MILLIMETERS DIM MIN NOM MAX A 0.80 0.90 1.00 A1 0.00 0.025 0.05 A3 0.20 REF b 0.20 0.25 0.30 D 3.00 BSC D2 1.45 1.50 1.55 D3 0.52 0.57 0.62 D4 1.02 1.07 1.12 E 4.00 BSC E2 1.05 1.10 1.15 E3 1.30 1.35 1.40 E4 1.40 1.45 1.50 e 0.50 BSC K 0.25 −−− −−− L 0.30 0.325 0.35 L1 −−− −−− 0.15 G 1.35 1.40 1.50 G1 0.95 1.05 1.15 G2 0.855 0.885 0.915 3.30 1.55 L 0.50 PITCH 0.925 PACKAGE OUTLINE 12 G G E3 E2 1 E4 22X b 1 K 1.21 1.47 1.47 1.58 4.30 0.10 C A B 0.05 C 16X 1.47 NOTE 3 18 e G2 D2 22X 0.39 0.52 BOTTOM VIEW 22X 0.30 1.14 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. 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