EVALUATION KIT AVAILABLE MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO General Description The MAX14670–MAX14673 provide protection to valuable consumer circuits against positive voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +80V. The device is able to disconnect the system from its output terminal when wrong input conditions are detected. The MAX14670–MAX14673 overvoltage protection devices feature low 65mΩ (typ), WLP package on-resistance (RON) internal FETs, effectively minimizing the voltage drop across the device. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected components. The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 5V and 22V. The devices automatically choose the accurate internal trip thresholds when the overvoltage lockout input (OVLO) is set lower than the external OVLO select voltage. The internal OVLO are preset to typical 6.8V (MAX14670), 15.5V (MAX14671), 5.825V (MAX14672), or 22V (MAX14673). The MAX14670–MAX14673 feature reverse bias blocking capability. Unlike other overvoltage protectors, when the MAX14670–MAX14673 are disabled, the voltage applied to OUT does not feed back into IN. These devices also feature an OTG enable pin that allows OUT voltage to supply IN. The MAX14670–MAX14673 also have thermal shutdown protection against over load conditions. The MAX14670–MAX14673 are specified over the extended -40°C to +85°C temperature range. The MAX14670/ MAX14671 are available in a 15-bump WLP package and the MAX14672/MAX14673 are available in a 10-pin TDFN package. Ordering Information/Selector Guide and Typical Operating Circuit appear at end of data sheet. For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX14670.related. 19-6727; Rev 0; 6/13 Benefits and Features ● Protect High-Power Portable Devices • Wide Operating Input Voltage Protection from +3V to +28V • +80V Surge Capability • 4.5A Continuous Current Capability (WLP Package) • Integrated 65mΩ (typ) n-Channel MOSFET Switch (WLP Package) ● Flexible Overvoltage Protection Design • Wide +5V to +22VAdjustable OVLO Threshold Range • ACOK and ACOK Indicate Input is in Range • OTG Enable Allows OUT to Supply IN • Preset Accurate Internal OVLO Thresholds: 6.8V ±3% (MAX14670) 15.5V ±3% (MAX14671) 5.825V ±3% (MAX14672) 22V ±3% (MAX14673) ● Additional Protection Features Increase System Reliability • OUT-IN Reverse Bias Blocking Capability • Soft-Start to Minimize Inrush Current • Internal 15ms Startup Debounce • Thermal Shutdown Protection ● Space Saving • 15-Bump, 1.6mm x 2.1mm, WLP Package • 10-Pin, 3mm x 3mm, TDFN Package Applications ● ● ● ● ● Tablets Smart Phones E-Readers PC Notebooks Charging USB Hosts MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Absolute Maximum Ratings (All voltages referenced to GND.) IN (Note 1)..............................................................-0.3V to +29V OUT........................................................................-0.3V to +26V IN - OUT..................................................................-26V to +29V OTG_EN, ACOK, ACOK..........................................-0.3V to +6V OVLO.....................................................................-0.3V to +26V Continuous Current into IN, OUT WLP (Note 2)...................................................................±4.5A TDFN...............................................................................±3.2A Continuous Power Dissipation (TA = +70°C) WLP (derate 16.4mW/°C above +70°C).....................1312mW TDFN (derate 24.4mW/°C above +70°C)...................1951mW Operating Temperature Range............................ -40°C to +85°C Storage Temperature Range............................. -65°C to +150°C Soldering Temperature (reflow)........................................+260°C Note 1: Survives burst pulses up to 80V with 2Ω series resistance and hot plug events. Above the input clamp voltage, the IN must be a surge in nature with a limited energy. Note 2: Limited by the PCB thermal design. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Thermal Characteristics (Note 3) WLP Junction-to-Ambient Thermal Resistance (θJA)...........52°C/W TDFN Junction-to-Ambient Thermal Resistance (θJA)...........41°C/W Junction-to-Case Thermal Resistance (θJC)..................9°C/W Note 3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (VIN = +3V to +28V, VOUT = +3V to +24V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V, TA = +25°C.) (Note 4) PARAMETER Input Startup Voltage Input Sustaining Voltage Input Clamp Voltage Input Supply Current SYMBOL CONDITIONS TYP MAX UNITS 2.17 3 V IOUT = 0A 1.5 2.3 V VIN_CLAMP IIN = 10mA, TA = +25°C 33.7 VINBT VINBU IIN VOVLO = 0V, VIN = 5V, ACOK is unconnected, IOUT = 0mA MIN V 100 190 µA 2.15 3 V IIN = 0A 1.5 2.3 V VOVLO = 0V, VOUT = 5V, IIN = 0mA, VOTG_EN = 1.8V 83 170 µA Output Shutdown Current VOVLO = 3V, VOUT = 5V, VIN = 0V, VOTG_EN = 0V 6 12 µA IN Leakage Voltage VOUT = 21V, IN unconnected, VOTG_EN = 0V 0.001 0.1 V IN Discharge Current VIN = VOUT = 5V, IN discharge current after an OTG_EN transition from high to low 100 150 mA Output Startup Voltage VOUTBT Output Sustaining Voltage VOUTBU Output Supply Current www.maximintegrated.com IOUT Maxim Integrated │ 2 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Electrical Characteristics (continued) (VIN = +3V to +28V, VOUT = +3V to +24V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V, TA = +25°C.) (Note 4) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS WLP, TA = +25°C 65 87 TDFN, TA = +25°C 85 110 6.8 7.0 15.5 16.0 5.825 6.0 1.221 1.26 V 22 V OVP (IN TO OUT) On-Resistance (IN to OUT) RON VIN = 5V, IOUT = 100mA MAX14670 Internal Overvoltage Trip Level VIN_OVLO MAX14671 MAX14672 VIN rising 6.6 VIN falling 6.5 VIN rising 15.0 VIN falling 14.5 VIN rising 5.65 VIN falling 5.55 mΩ V OVLO Set Threshold VOVLO_TH 1.18 Adjustable OVLO Threshold Range VOVLO_EXT 5 External OVLO Select Threshold VOVLO_SEL 0.2 0.25 0.3 V 1.6 1.8 2.0 V 1 µA 0.4 V 1 µA DIGITAL SIGNALS (ACOK, ACOK, OTG_EN) ACOK Output High Voltage VACOK Pull down to ground, VOUT = 5V, OTG_EN = high, ACOK deasserted ACOK Leakage Current ACOK Output Low Voltage ISOURCE ≤ 100µA, VIN > 3V VOL ACOK Leakage Current VIO = 3.3V, ISINK = 1mA VIO = 3.3V, ACOK deasserted OTG_EN Input Logic High VIH OTG_EN Input Logic Low VIL OTG_EN Input Leakage Current IIN 1.6 0V ≤ VIN ≤ VIL and VIH ≤ VIN ≤ VCC, VCC = 5.5V V -1 0.4 V +1 µA TIMING CHARACTERISTICS (Figure 1) IN Debounce Time tDEB VIN = 5V to charge pump on (VOUT = 10% of VIN), RLOAD = 100Ω, CLOAD = 10µF 20 ms IN/OUT Soft-Start Time tSS VIN = 5V to VOUT = 90% of VIN, RLOAD = 100Ω, CLOAD = 10µF 25 ms IN OVP Turn-On Time During Soft-Start tON VIN = 5V, RLOAD = 100Ω, CLOAD = 10µF, VOUT = 20% of VIN to 80% of VIN 1.5 ms IN OVP Turn-Off Response Time tOFF From VIN > VOVLO to VOUT = 80% of VIN, RLOAD = 100Ω 1 µs tOTG_ON Time from OTG_EN high to VIN = 80% of VOUT, VOUT = 5V, CIN = 10µF 1.4 ms VIN = VOUT = 5V, current pulse duration after an OTG_EN transition from high to low 1.1 ms OTG Turn-On Time In-Discharge Pulse Duration www.maximintegrated.com Maxim Integrated │ 3 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Electrical Characteristics (continued) (VIN = +3V to +28V, VOUT = +3V to +24V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V, TA = +25°C.) (Note 4) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS THERMAL PROTECTION Thermal Shutdown TSHDN 150 °C Thermal Hysteresis THYST 20 °C ESD PROTECTION Human Body Model IN pin ±15 kV IEC 61000-4-2 Contact Discharge IN pin ±8 kV IEC 61000-4-2 Air-Gap Discharge IN pin ±8 kV Note 4: All devices are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design and not production tested. tOFF tDEB OVLO IN 2.2V tDEB OUT tDEB tOTG_ON tON tON tSS THERMAL SHUTDOWN tOFF VOVLO_TH OVLO ACOK VACOK ACOK tDEB DEASSERT ACOK, ACOK GOOD SIGNAL OTG_EN Figure 1. Timing Diagram www.maximintegrated.com Maxim Integrated │ 4 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Typical Operating Characteristics (VIN = +5V, OVLO = GND, CIN = 0.1µF, COUT = 1µF, TA = +25°C, unless otherwise noted.) 200 TA = +25ºC 100 TA = -40ºC 50 0 0.2 0 -0.2 -0.4 20 -1.0 30 0 MAX14670 toc04 1.4 1.2 1.0 0.8 0.6 NORMALIZED TO 0.1A LOAD CURRENT 0 OUT-IN LEAKAGE CURRENT (µA) 10 1 2 3 4 4 0.6 8 6 -40 -15 10 35 300 250 TA = +85ºC 200 150 TA = +25ºC 100 TA = -40ºC 50 0 5 7 6 5 4 3 2 1 0 2 4 OUT VOLTAGE (V) www.maximintegrated.com 6 85 OUTPUT SUPPLY CURRENT vs. OUTPUT VOLTAGE OTG_EN = HIGH 0 5 10 15 20 NORMALIZED INTERNAL OVLO THRESHOLD vs. TEMPERATURE 8 60 TEMPERATURE (ºC) OUT-IN LEAKAGE CURRENT vs. OUT VOLTAGE VIN = 0V MAX14670 toc03 IOUT = 1A NORMALIZED TO +25ºC OUTPUT VOLTAGE (V) 9 0 VIN = +5V 0.9 OUTPUT CURRENT (A) MAX14670 toc06 NORMALIZED RON 1.6 0.2 1.0 VOVLO (V) 1.8 0 2 NORMALIZED ON-RESISTANCE vs. OUTPUT CURRENT 0.4 1.1 0.7 VIN = 0V IN VOLTAGE (V) 2.0 1.2 0.8 -0.6 -0.8 10 0 0.4 VIN = +3.6V 1.3 1.05 25 MAX14670 toc07 150 0.6 MAX14670 toc05 250 1.4 NORMALIZED RON TA = +85ºC NORMALIZED ON-RESISTANCE vs. TEMPERATURE 0.8 OUTPUT SUPPLY CURRENT (µA) 300 1.0 NORMALIZED INTERNAL OVLO THRESHOLD IN SUPPLY CURRENT (µA) 350 OVLO LEAKAGE CURRENT vs. OVLO VOLTAGE MAX14670 toc02 MAX14670 OVLO LEAKAGE CURRENT (nA) 400 MAX14670 toc01 IN SUPPLY CURRENT vs. IN VOLTAGE 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 NORMALIZED TO +25ºC -40 -15 10 35 60 85 TEMPERATURE (ºC) Maxim Integrated │ 5 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Typical Operating Characteristicsc (continued) 1.02 1.01 1.00 0.99 0.98 0.97 VIN = +6V NORMALIZED TO +25ºC 0.96 0.95 -40 -15 10 35 60 85 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 TEMPERATURE (ºC) 35 60 1.05 1.00 0.95 0.90 RL = 100Ω, CL = 10µF NORMALIZED TO +25ºC 85 0.80 -40 -15 IOUT = 500mA COUT = 100µF 10 35 60 85 TEMPERATURE (ºC) POWER-UP RESPONSE, COUT = 1000µF MAX14670 toc11 www.maximintegrated.com 10 1.10 TEMPERATURE (ºC) POWER-UP RESPONSE, COUT = 100µF 10ms/div -15 1.15 0.85 NORMALIZED TO +25ºC -40 1.20 MAX14670 toc10 1.05 NORMALIZED DEBOUNCE TIME 1.03 NORMALIZED DEBOUNCE TIME vs. TEMPERATURE NORMALIZED EXTERNAL OVLO SELECT THRESHOLD vs. TEMPERATURE MAX14670 toc09 1.04 NORMALIZED EXTERNAL OVLO SELECT THRESHOLD 1.05 NORMALIZED EXTERNAL OVLO SET THRESHOLD vs. TEMPERATURE MAX14670 toc08 NORMALIZED EXTERNAL OVLO SET THRESHOLD (VIN = +5V, OVLO = GND, CIN = 0.1µF, COUT = 1µF, TA = +25°C, unless otherwise noted.) MAX14670 toc12 VIN 5V/div VIN 5V/div VOUT 5V/div VOUT 5V/div VACOK 2V/div IOUT = 500mA COUT = 1000µF VACOK 2V/div 10ms/div Maxim Integrated │ 6 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Typical Operating Characteristicsc (continued) (VIN = +5V, OVLO = GND, CIN = 0.1µF, COUT = 1µF, TA = +25°C, unless otherwise noted.) OTG_EN ENABLE VOUT = 5V VOVLO = 0V CIN = 10µF IIN = 250mA 0V OTG_EN DISABLE MAX14670 toc13 VOTG_EN 5V/div VOTG_EN 5V/div VIN 5V/div VIN 5V/div VOUT 5V/div VOUT = 5V VOVLO = 0V CIN = 10µF IIN = 250mA 0V 2ms/div VOUT 5V/div 2ms/div OVERVOLTAGE FAULT RESPONSE 80V SURGE TEST WAVEFORM 80V SURGE TEST WAVEFORM MAX14670 toc15 MAX14670 toc17 MAX14670 toc16 VIN 5V/div 0V MAX14670 toc14 WITH MAX14670 WITHOUT MAX14670 VOUT 5V/div VIN 20V/div VIN 20V/div VOUT 20V/div VACOK 2V/div IOUT = 500mA 10ms/div www.maximintegrated.com 10µs/div 10µs/div Maxim Integrated │ 7 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Pin Configurations TOP VIEW (BUMPS ON BOTTOM) + MAX14670 MAX14671 1 2 3 4 5 OUT OUT OUT OUT OTG_EN OUT IN ACOK OVLO ACOK IN IN IN IN GND IN IN IN 10 9 8 GND ACOK 7 6 A MAX14672 MAX14673 B EP + C 1 2 3 4 5 OUT OUT OVLO OTG_ ACOK EN WLP TDFN-EP *CONNECT EP TO GND Pin Descriptions BUMP PIN MAX14670/ MAX14671 MAX14672/ MAX14673 NAME A1–B1 1, 2 OUT A5 4 OTG_EN B2, C1–C4 8-10 IN B3 6 ACOK 1.8V Logic Output. ACOK is driven high after input voltage is stable between minimum VIN and VOVLO when OTG_EN = 0. Connect a pulldown resistor from ACOK to ground. B4 3 OVLO Overvoltage Lockout Input. Connect OVLO to GND to use internal OVLO threshold. Connect OVLO to a resistor-divider for a different voltage threshold. B5 5 ACOK Open-Drain Flag Output. ACOK is driven low after input voltage is stable between minimum VIN and VOVLO when OTG_EN = 0. Connect a pullup resistor from ACOK to the logic I/O voltage of the host system. C5 7 GND — — EP www.maximintegrated.com FUNCTION Overvoltage Protection Output. Bypass OUT with a 1µF ceramic capacitor. Externally connect all OUT together. Enable Input for OTG Supply Operation Overvoltage Protection Input. If desired, bypass IN with a 0.1µF ceramic capacitor as close to the device as possible. Externally connect all IN together. Ground Exposed Pad (TDFN only) Connect EP to ground. Maxim Integrated │ 8 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Functional Diagram Q1 Q2 IN OUT TVS CLAMP ANALOG/DIGITAL CONTROL IN CHARGE PUMP AND GATE DRIVER OUT CHARGE PUMP AND GATE DRIVER VCC1_INT 1.8V LDO BG OK TIMING AND CONTROL LOGIC CURRENT SHOT ACOK VCC1_INT SEL ACOK COMP VBG OVLO CLAMP IN OTG LOGIC LEVEL SHIFTER ENB MAX14670 MAX14673 OTG_EN www.maximintegrated.com Maxim Integrated │ 9 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Detailed Description OTG Enable The MAX14670–MAX14673 overvoltage protection (OVP) devices feature low on-resistance (RON) internal FETs (Q1+Q2) and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +80V. If the input voltage exceeds the overvoltage threshold, the output is disconnected from the input to prevent damage to the protected components. The 15ms debounce time prevents false turn-on of the internal FETs during startup. The devices feature reverse turn-on capability. OTG_EN can be used to turn on the switch for OUT to feed back to IN when the voltage applied at OUT is above the minimum startup voltage. When OTG_EN is high, ACOK and ACOK are deasserted. During the OTG operation, if IN goes above OVLO, the OVP switch turns off. It is recommended that the power is supplied to OUT prior to OTG operation and also the power is removed from OUT prior to disable OTG operation. Soft-Start Thermal Shutdown Protection To minimize inrush current, the devices feature a soft-start capability to slowly turn on Q1 and Q2. Soft-start begins when ACOK/ACOK is asserted and ends after 15ms (typ). Overvoltage Lockout (OVLO) Connect OVLO to ground to use the internal OVLO comparator with the internally set OVLO value. When IN goes above the overvoltage lockout threshold (VIN_OVLO), OUT is disconnected from IN and ACOK/ ACOK is deasserted. When IN drops below VIN_OVLO, the debounce time starts counting. After the debounce time, OUT follows IN again and ACOK/ACOK is asserted. External OVLO Adjustment Functionality When an external resistor-divider is connected to OVLO and VOVLO exceeds the OVLO select voltage (VOVLO_SEL), the internal OVLO comparator reads IN by the external resistor-divider. R1 = 1MΩ is a good starting value for minimum current consumption. Since VIN_OVLO, VOVLO_TH, and R1 are known, R2 can be calculated from the following formula: This external resistor-divider is completely independent from the internal resistor-divider. Reverse Bias Blocking The ICs feature reverse bias blocking. When IN voltage is below input startup voltage and OTG_EN is low, the switch between IN and OUT is open and the two backto-back diodes of the two series switches block reverse bias. Therefore, when the voltage is applied at the output, current does not travel back to the input. When OVLO is high, the parts block against reverse bias as well. www.maximintegrated.com The devices feature thermal shutdown protection to protect the devices from overheating. The internal FETs turn off when the junction temperature exceeds +150°C (typ), and the device returns to normal operation after the temperature drops by approximately 20°C (typ). Applications Information IN Bypass Capacitor If desired, bypass IN to GND with a 0.1µF ceramic capacitor as close to the device as possible. If the power source has significant inductance due to long lead length, the device prevents overshoots due to the LC tank circuit and provides protection by clamping the overshooting. Output Capacitor The slow turn-on time provides a soft-start function that allows the devices to charge an output capacitor up to 1000µF without turning off due to an overcurrent condition. Bypass OUT to GND with a minimum of 1µF ceramic capacitor. Extended ESD Protection ESD protection structures are incorporated on all pins to protect against electrostatic discharges up to ±2kV (Human Body Model) encountered during handling and assembly. IN is further protected against ESD up to ±15kV (HBM), ±15kV (Air-Gap Discharge method described in IEC 61000-4-2) and ±8kV (Contact Discharge Method described in IEC 61000-4-2) without damage. The ESD structures withstand high ESD both in normal operation and when the device is powered down. After an ESD event, the MAX14670–MAX14673 continue to function without latchup. Maxim Integrated │ 10 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO ESD Test Conditions ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results. Human Body Model ESD Protection Figure 2 shows the HBM and Figure 3 shows the current waveform it generates when discharged into a lowimpedance state. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. RC 1MΩ RC 50MΩ TO 100MΩ DISCHARGE RESISTANCE CS 100pF STORAGE CAPACITOR CHARGE-CURRENTLIMIT RESISTOR DEVICE UNDER TEST Figure 2. Human Body ESD Test Model HIGHVOLTAGE DC SOURCE CS 150pF RD 330Ω DISCHARGE RESISTANCE STORAGE CAPACITOR DEVICE UNDER TEST Figure 4. IEC 61000-4-2 ESD Test Model IPEAK (AMPS) IPEAK (AMPS) Ir 100% 90% The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The major difference between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 610004-2 because series resistance is lower in the IEC 610004-2 model. Hence, the ESD withstand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 4 shows the IEC 61000-4-2 model, and Figure 5 shows the current waveform for the IEC 61000-4-2 ESD Contact Discharge test. RD 1.5kΩ CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE IEC 61000-4-2 100% 90% PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) 36.8% 10% 0 0 TIME tRL tDL Figure 3. Human Body Current Waveform www.maximintegrated.com 10% tR = 0.7ns TO 1ns t 30ns 60ns Figure 5. IEC 61000-4-2 ESD Generator Current Waveform Maxim Integrated │ 11 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Typical Operating Circuit PMIC/CHARGER DOCKING STATION/TA 5V/12V CHARGER INPUT 0.1µF IN OUT OVLO REVERSE BOOST CHARGER ACOK OTG_EN VBUS IN ACOK OUT MAX14670 MAX14673 0.1µF SYSTEM BATTERY OTG_EN R2 USB MICRO-AB 5V/12V/20V 1µF MAX14670 MAX14673 R1 CHARGER INPUT OTG 1µF VIO OVLO ACOK OTG_EN ACOK APPS PROCESSOR 10kΩ USB IN 10kΩ Ordering Information/Selector Guide OVLO (V) TOP MARK PINPACKAGE MAX14670EWL+T 6.8 +14670EWL 15 WLP MAX14671EWL+T** 15.5 +14671EWL 15 WLP MAX14672ETB+T** 5.825 AZF 10 TDFN-EP* MAX14673ETB+T** 22 AZG 10 TDFN-EP* PART Note: All devices are specified over -40°C to +85°C operating temperature range. +Denotes a lead(Pb)-free package/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. **Future product—contact factory for availability. www.maximintegrated.com Chip Information PROCESS: BiCMOS Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 10 TDFN T1033+1 21-0137 90-0003 15 WLP W151C2+1 21-0686 Refer to Application Note 1891 Maxim Integrated │ 12 MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO Revision History REVISION NUMBER REVISION DATE 0 6/13 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2013 Maxim Integrated Products, Inc. │ 13