19-3672; Rev 1; 8/09 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN Features ♦ Guaranteed Current Limit: 50mA, 100mA ♦ Thermal Shutdown Protection ♦ Reverse-Current Protection ♦ 0.7Ω On-Resistance (MAX4826–MAX4831) ♦ 14ms Guaranteed Blanking Time ♦ Fault Flag (FFLG) ♦ No-Load Flag (NOLD) ♦ 65µA Supply Current ♦ 8µA Latchoff Current ♦ 0.01µA Shutdown Current ♦ +2.3V to +5.5V Supply Range ♦ Undervoltage Lockout ♦ Fast Current-Limit Response Time ♦ 6-Pin µDFN Package (1mm x 1.5mm) Applications GPS Systems Cell Phones Digital Still Cameras PDAs and Palmtop Devices MP3 Players Ordering Information/Selector Guide PART PIN-PACKAGE MIN FULL-LOAD LIMIT (mA) MAX NO-LOAD LIMIT (mA) ON-RESISTANCE () TA = +25°C MODE TOP MARK AK MAX4826ELT+T 6 μDFN 50 10 1 Latchoff MAX4827ELT+T* 6 μDFN 50 10 1 Autoretry AL MAX4828ELT+T* 6 μDFN 100 10 1 Latchoff AM MAX4829ELT+T 6 μDFN 100 10 1 Autoretry AN MAX4830ELT+T 6 μDFN 50 5 2 Latchoff AO MAX4830ELT/V+T 6 μDFN 50 5 2 Latchoff OX MAX4831ELT+T* 6 μDFN 50 5 2 Autoretry AP Note: All devices operate over the -40°C to +85°C operating range. T = Tape and reel. *Future product—contact factory for availability. /V denotes an automotive qualified part. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX4826–MAX4831 General Description The MAX4826–MAX4831 family of switches has internal current limiting to prevent host devices from being damaged due to faulty load conditions. These analog switches have a low 0.7Ω on-resistance and operate from a +2.3V to +5.5V input voltage range. These devices are available with guaranteed 50mA and 100mA current limits, making them ideal for loadswitching applications. In addition to the current-limit fault flag (FFLG), an open-drain no-load flag indicator (NOLD) notifies the system when the current through the switch is less than 10mA (MAX4826–MAX4829), or 5mA (MAX4830/MAX4831). When the switch is on and a load is connected to the port, a guaranteed blanking time of 14ms ensures that the transient voltages settle down. If, after this blanking time, the load current is greater than the current limit, the MAX4826/MAX4828/MAX4830 enter a latchoff state where the switch is turned off, and FFLG is issued to the microprocessor. The switch can be turned on again by cycling the power or ON. The MAX4827/MAX4829/MAX4831 have an autoretry feature where the switch turns off after the blanking time, and then continuously checks to see if the overload condition is present. The current-limit fault flag (FFLG) is issued and remains low until after the fault condition is removed. The switch remains on after the overload condition disappears. The MAX4826–MAX4831 operate over the extended -40°C to +85°C temperature range, and are available in a tiny space-saving, 1mm x 1.5mm, 6-pin µDFN package. MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN ABSOLUTE MAXIMUM RATINGS IN, ON, FFLG, NOLD, OUT to GND .........................-0.3V to +6V OUT Short Circuit to GND .................................Internally Limited Continuous Power Dissipation (TA = +70°C) 6-Pin µDFN (derate 2.1mW/°C above +70°C) .............168mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C 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. ELECTRICAL CHARACTERISTICS (VIN = +2.3V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +3.3V, TA = +25°C.) (Note 1) PARAMETER Operating Voltage Quiescent Current Latchoff Current (Note 2) Shutdown Current Shutdown Reverse Leakage Forward-Current Limit Reverse-Current Limit SYMBOL VIN IQ ISHDN IFWD IREV 5.5 V 65 100 120 15 µA VON = 0, IOUT = 0mA 0.01 1 µA VON = 0, VIN = +2.3V, VOUT = +5.5V 0.01 1 µA (MAX4826/MAX4827/MAX4830/MAX4831) RL = 10Ω 50 120 (MAX4828/MAX4829) RL = 5Ω 100 240 VOUT - VIN < 0.5V (MAX4826/MAX4827/MAX4830/MAX4831) 120 VOUT - VIN < 0.5V (MAX4828/MAX4829) 240 MAX4830/MAX4831 0.5 5.0 IONLK VON = VIN or GND -1 ISWLK VIN = +5.5V, VON = 0, VOUT = 0 UVLO Rising edge 0.01 1.8 UVLOHYS On-Resistance RON ON Input-Logic-High Voltage VIH ON Input-Logic-Low Voltage VIL µA 8 10.0 Off-Switch Leakage 2 UNITS 1.0 ON Input Leakage FFLG, NOLD Output-Logic-Low Voltage MAX MAX4826–MAX4829 INLTH Undervoltage Lockout Hysteresis TYP 2.3 VON = VIN = 3.3V, after an overcurrent fault (MAX4826/MAX4828/MAX4830) ISHDNRV MIN VON = VIN, IOUT = VIN = +2.3V to +5.0V 0, switch on VIN = +5.0V to +5.5V ILATCH No-Load Threshold Undervoltage Lockout CONDITIONS mA mA +1 µA 1 µA 2.2 100 V mV TA = +25°C, IOUT = 20mA (MAX4826–MAX4829) 0.7 1.0 (MAX4830/MAX4831) 1.4 2.0 TA = -40°C to +85°C, IOUT = 20mA (MAX4826–MAX4829) 1.3 (MAX4830/MAX4831) mA Ω 2.6 2.0 ISINK = 1mA _______________________________________________________________________________________ V 0.8 V 0.4 V 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN (VIN = +2.3V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +3.3V, TA = +25°C.) (Note 1) PARAMETER SYMBOL FFLG, NOLD Output-High Leakage Current CONDITIONS MIN TYP VIN = VFFLG = VNOLD = +5.5V Thermal Shutdown Thermal-Shutdown Hysterisis MAX UNITS 1 µA +150 °C 15 °C DYNAMIC Turn-On Time ON from low to high; IOUT = 10mA, CL = 0.1µF (Note 3) 50 µs Turn-Off Time ON from high to low; IOUT =10mA, CL = 0.1µF (Note 3) 30 ns Blanking Time tBLANK Overcurrent fault 14 60 ms Short-Circuit Current-Limit Response Time VON = VIN = +3.3V, short circuit applied to OUT 5 µs No-Load-Detection Response Time IOUT falling step signal from 15mA to 0mA, CL = 0.1µF 60 µs Retry Time tRETRY Overcurrent fault (Figure 2) (Note 4) 196 840 ms Note 1: All parts are 100% tested at TA = +25°C. Limits at TA = -40°C to +85°C are guaranteed by design. Note 2: Latchoff current does not include the current flowing into FFLG and NOLD. Note 3: Turn-on time is defined as the time taken for the current through the switch to go from 0mA to full load. Turn-off time is defined as the time taken for the current through the switch to go from full load to 0mA. Note 4: Retry time is typically 14x the blanking time. Typical Operating Characteristics (VIN = +3.3V, TA = +25°C, unless otherwise noted.) 70 60 50 40 30 70 VIN = 5V 60 50 VIN = 3.3V 40 30 20 20 10 10 0 VON = VIN 80 0 2.3 2.7 3.1 3.5 3.9 4.3 SUPPLY VOLTAGE (V) 4.7 5.1 5.5 -40 -15 10 35 TEMPERATURE (°C) 60 85 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MAX4826 toc03 90 LATCHOFF CURRENT (μA) VON = VIN VIN = +2.3V TO +5.5V SUPPLY CURRENT (μA) SUPPLY CURRENT (μA) 80 MAX4826 toc01 90 LATCHOFF CURRENT vs. TEMPERATURE QUIESCENT SUPPLY CURRENT vs. TEMPERATURE MAX4826 toc02 QUIESCENT SUPPLY CURRENT vs. SUPPLY VOLTAGE VON = VIN VIN = 5V VIN = 3.3V -40 -15 10 35 60 85 TEMPERATURE (°C) _______________________________________________________________________________________ 3 MAX4826–MAX4831 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (VIN = +3.3V, TA = +25°C, unless otherwise noted.) 0.1 VIN = 5V 0.01 VIN = 3.3V 0.001 0.0001 0.1 VIN = 5V 0.01 VIN = 3.3V 0.001 -15 10 35 60 85 -40 -15 10 35 60 LATCHOFF-LEAKAGE CURRENT vs. TEMPERATURE NORMALIZED ON-RESISTANCE vs. TEMPERATURE VON = VIN = 3.3V 0.01 VIN = 3.3V 0.001 -40 1.0 0.8 0.6 0.001 10 35 60 85 200 MAX4828/MAX4829 150 100 -15 10 35 85 60 SWITCH TURN-ON/OFF TIMES vs. TEMPERATURE 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 VIN = 5V 0.1 OFF 0.01 MAX4826 toc11 40 35 FFLG-BLANKING TIME (ms) ON 10 VIN - VOUT (V) FFLG-BLANKING TIMEOUT vs. TEMPERATURE MAX4826 toc10 100 TURN-ON/OFF TIMES (μs) MAX4826/MAX4827/MAX4830/MAX4831 TEMPERATURE (°C) VIN = 3.3V 30 25 20 15 ILOAD = -10mA 0.001 10 -40 -15 10 35 TEMPERATURE (°C) 85 0 -40 TEMPERATURE (°C) 1 60 250 0 -15 35 50 0.2 -40 10 OUTPUT CURRENT vs. OUTPUT VOLTAGE 0.4 0.0001 -15 300 OUTPUT CURRENT (mA) NORMALIZED RON 1.2 VIN = 5V 0.01 MAX4826 toc08 MAX4826 toc07 1.4 0.1 0.1 TEMPERATURE (°C) TEMPERATURE (°C) 1 1 85 TEMPERATURE (°C) 10 VON = VIN = OV VOUT = 5V 0.0001 0.0001 -40 MAX4826 toc06 1 10 MAX4826 toc09 SHUTDOWN LEAKAGE CURRENT (nA) 1 MAX4826 toc05 10 MAX4826 toc04 SHUTDOWN SUPPLY CURRENT (nA) 10 4 SHUTDOWN REVERSE LEAKAGE CURRENT vs. TEMPERATURE SHUTDOWN LEAKAGE CURRENT vs. TEMPERATURE REVERSE LEAKAGE CURRENT (nA) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE LATCHOFF-LEAKAGE CURRENT (nA) MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN 60 85 -40 -15 10 35 60 85 TEMPERATURE (°C) _______________________________________________________________________________________ 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN CURRENT-LIMIT RESPONSE CURRENT-LIMIT RESPONSE MAX4826 toc12 VON = 3.3V VOUT = GND MAX4826 toc13 CIN = 1μF COUT = 1μF VIN 2V/div VON = 3.3V VOUT = GND CIN = 1μF COUT = 1μF VIN = VON 1V/div VON 2V/div IOUT 100mA/div IOUT 100mA/div 40μs/div 20μs/div CURRENT-LIMIT RESPONSE (OUT SHORTED TO GND) SWITCH TURN-ON-TIME RESPONSE MAX4826 toc15 MAX4826 toc14 VIN 2V/div VIN = 3.3V ILOAD = 10mA VON 2V/div VOUT 2V/div IOUT 100mA/div IOUT 2A/div 100μs/div 40μs/div SWITCH TURN-OFF-TIME RESPONSE FFLG-BLANKING RESPONSE MAX4826 toc16 MAX4826 toc17 VIN 2V/div VIN = 3.3V ILOAD = 10mA VON 2V/div VON 2V/div FFLG 2V/div IOUT 10mA/div IOUT 100mA/div 100ns/div 4ms/div _______________________________________________________________________________________ 5 MAX4826–MAX4831 Typical Operating Characteristics (continued) (VIN = +3.3V, TA = +25°C, unless otherwise noted.) MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN Pin Description PIN NAME FUNCTION 1 IN 2 GND Input. Bypass IN with a 0.1µF ceramic capacitor to ground. Ground 3 OUT Switch Output. Bypass OUT with a 0.1µF capacitor to ground 4 FFLG Current-Limit Fault Output. FFLG is an open-drain output. FFLG goes low when the device stays in forward- or reverse-current limit for more than the blanking time period. FFLG is high impedance when a fault is not present or when ON is low. 5 NOLD No-Load Flag Output. NOLD is an open-drain output. NOLD goes low when a load of less than 10mA (MAX4826–MAX4829) or 5mA (MAX4830/MAX4831) is delivered to the output. NOLD is high impedance when a fault is not present or when ON is low. 6 ON Active-High Switch-On Input. Drive ON high to turn the switch on. Detailed Description The MAX4826–MAX4831 are forward-/reverse-currentlimited switches that operate from a +2.3V to +5.5V input voltage range and guarantee a 50mA and 100mA minimum current-limit threshold for different options. The voltage drop across an internal sense resistor is compared to two reference voltages to indicate a forward- or reverse-current-limit fault. When the load current exceeds the preset current limit for greater than the fault-blanking time, the switch opens. The MAX4827/MAX4829/MAX4831 have an autoretry function that turns on the switch again after an internal retry time expires. If the faulty load condition is still present after the blanking time, the switch turns off again and the cycle is repeated. If the faulty load condition is not present, the switch remains on. The MAX4826/MAX4828/MAX4830 do not have the autoretry option, and the switch remains in latchoff mode until ON or the input power is cycled from high to low and then high again. The undervoltage lockout (UVLO) circuit prevents erroneous switch operation when the input voltage goes too low during startup conditions. Reverse-Current Protection The MAX4826–MAX4831 limit the reverse current (VOUT to VIN) from exceeding the maximum IREV value. The switch is shut off and FFLG is asserted if the reversecurrent-limit condition persists for more than the blanking time. This feature prevents excessive reverse currents from flowing through the device. Switch-On/Off Control Toggle ON high to enable the current-limited switches. The switches are continuously on only if VIN exceeds the UVLO threshold (typically 2V) and there is no fault. When a forward-/reverse-current fault is present or the die exceeds the thermal-shutdown temperature of +150°C, OUT is internally disconnected from IN, and the supply current decreases to 8µA (latchoff). The switch is now operating in one of its off states. The switch off state also occurs when driving ON low, thus reducing the supply current (shutdown) to 0.01µA. Table 1 illustrates the ON/OFF state of the MAX4826– MAX4831 current-limit switches. Table 1. MAX4826–MAX4831 Switch Truth Table ON SWITCH ON/OFF SUPPLY CURRENT MODE Low X OFF Shutdown High Undervoltage lockout OFF Latchoff High Thermal OFF immediately (tBLANK period does not apply). OFF after tBLANK period has elapsed. Latchoff High 6 FAULT Current limit ON during tBLANK period, OFF during tRETRY period for the MAX4827/MAX4829/MAX4831. Cycle repeats until fault is removed. Latchoff See the Autoretry (MAX4827/ MAX4829/MAX4831) section _______________________________________________________________________________________ 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN NO-LOAD THRESHOLD VON CURRENT LIMIT tRETRY tBLANK tBLANK CURRENT LIMIT SHORT CONDITION REMOVED LOAD CURRENT LOAD CURRENT 60μs 60μs ON SWITCH STATUS NOLD STATUS OFF Figure 1. MAX4826–MAX4831 No-Load Flag Response Figure 2. MAX4827/MAX4829/MAX4831 Autoretry Fault Blanking Diagram FFLG Indicator The MAX4826–MAX4831 feature a current-limit fault output, FFLG. Whenever a current-limit fault is activated, FFLG goes low and the switch turns off. FFLG is an open-drain output transistor and requires an external pullup resistor from FFLG to IN. During shutdown (ON is low), the pulldown on the FFLG output is released to limit power dissipation. FFLG goes low when any of the following conditions occur: • The die temperature exceeds the thermal shutdown temperature limit of +150°C. • The device is in current limit for more than the fault-blanking period. • VIN is below the UVLO threshold. tBLANK LOAD CURRENT ON SWITCH STATUS OFF ON PIN VOLTAGE FFLG PIN STATUS (a) NOLD Indicator The MAX4826–MAX4831 feature a no-load flag output, NOLD (Figure 1). This output is pulled low every time the current coming out of the switch is less than 10mA (MAX4826–MAX4829), or 5mA (MAX4830/MAX4831). NOLD is an open-drain output transistor and requires an external pullup resistor from NOLD to a supply up to +5.5V. Current through the switch is intended to be positive (from IN to OUT), and for currents that are large in magnitude but negative in sign (OUT to IN), NOLD asserts low. For options with the autoretry feature (MAX4827/MAX4829/MAX4831), the NOLD output is high impedance during the tRETRY period when a forward-current-limit condition is present. However, NOLD is pulled low if a reverse current-limit condition is present during the tRETRY period. A constant time filter is present at the output of NOLD that gives a 60µs delay when a no-load condition is asserted. Deassertion of NOLD is not delayed. During shutdown (ON is low), the pulldown on NOLD is released to limit power dissipation. tBLANK tBLANK tBLANK LOAD CURRENT ON SWITCH STATUS IN PIN VOLTAGE OFF UVLO FFLG PIN STATUS (b) Figure 3. MAX4826/MAX4828/MAX4830 Latchoff Fault Blanking Autoretry (MAX4827/MAX4829/MAX4831) When the forward- or reverse-current-limit threshold is exceeded, the tBLANK timer begins counting (Figure 2). The timer resets if the overcurrent condition disappears _______________________________________________________________________________________ 7 MAX4826–MAX4831 tBLANK VIN MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN before tBLANK has elapsed. A retry time delay, tRETRY, is started immediately after tBLANK has elapsed, and during that time the switch is latched off. At the end of tRETRY, the switch is turned on again. If the fault still exists, the cycle is repeated. If the fault has been removed, the switch stays on. The autoretry feature saves system power in the case of an overcurrent or short-circuit condition. During tBLANK, when the switch is on, the supply current is at the current limit. During tRETRY, when the switch is off, no current flows through the switch. Instead of observing the full load current, the switch sees the equivalent load current, multiplied by the duty cycle or ISUPPLY = ILOAD x tBLANK / (tBLANK + tRETRY). With a typical tBLANK = 37ms and typical tRETRY = 518ms, the duty cycle is 6% which results in a 94% power savings, as opposed to the switch being on the entire time. The duty cycle is consistent across the process and devices. Latchoff (MAX4826/MAX4828/MAX4830) When the forward- or reverse-current-limit threshold is exceeded, the tBLANK timer begins counting. The timer resets if the overcurrent condition disappears before tBLANK has elapsed. The switch is shut off if the overcurrent condition continues up to the end of the blanking time. Reset the switch by either toggling ON (Figure 3a), or cycling the input voltage below UVLO, typically 2V (Figure 3b). Fault Blanking The MAX4826–MAX4831 feature 14ms (min) fault blanking. Fault blanking allows current-limit faults, including momentary short-circuit faults that occur when hot swapping a capacitive load. Fault blanking also ensures that no fault is issued during power-up. When a load transient causes the device to enter the current limit, an internal counter starts. If the load-transient fault persists beyond the fault-blanking timeout, FFLG asserts low. Load-transient faults less than tBLANK do not cause FFLG assertion. Only current-limit faults are blanked. A thermal fault and input voltage drops below the UVLO threshold cause FFLG to assert immediately. These faults do not wait for the blanking time. Thermal Shutdown The MAX4826–MAX4831 have a thermal-shutdown feature to protect the devices from overheating. The switch turns off and FFLG goes low immediately (no fault blanking) when the junction temperature exceeds +150°C. The switches with the autoretry feature turn back on when the device temperature drops approximately 15°C. The switches with the latchoff feature require ON cycling. 8 Applications Information Input Capacitor To limit the input voltage drop during momentary output short-circuit conditions, connect a capacitor from IN to GND. A 0.1µF ceramic capacitor is adequate for most applications; however, higher capacitor values further reduce the voltage drop at the input and are recommended for lower voltage applications. Output Capacitance Connect a 0.1µF capacitor from OUT to GND. This capacitor helps prevent inductive parasitics from pulling OUT negative during turn-off, thus preventing the MAX4826–MAX4831 from tripping erroneously. If the load capacitance is too large, current may not have enough time to charge the capacitance, and the device assumes that there is a faulty load condition. The maximum capacitive load value that can be driven from OUT is obtained by the following formula: CMAX < IFWD _ MIN × tBLANK _ MIN VIN Layout and Thermal Dissipation To optimize the switch response time to output shortcircuit conditions, it is very important to keep all traces as short as possible to reduce the effect of undesirable parasitic inductance. Place input and output capacitors as close as possible to the device (no more than 5mm). IN and OUT pins must be connected with short traces to the power bus. During normal operation, the power dissipation is small and the package temperature change is minimal. If the output is continuously shorted to ground at the maximum supply voltage, the operation of the switches with the autoretry option does not cause problems because the total power dissipated during the short is scaled by the duty cycle: PMAX < VIN _ MAX × IOUT _ MAX × t BLANK t RETRY + t BLANK = 88mW where, VIN_MAX = 5.5V, IOUT_MAX = 240mA, tBLANK = 37ms, and tRETRY = 518ms. Attention must be given to the MAX4826/MAX4828/ MAX4830 where the latchoff condition must be manually reset by toggling ON from high to low. If the latchoff time duration is not sufficiently high, it is possible for the device to reach the thermal shutdown threshold and never be able to turn the device on until it cools down. _______________________________________________________________________________________ 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN +2.3V TO +5.5V TOP VIEW OF BOTTOM LEADS ON NOLD FFLG 6 5 4 IN ON MAX4826– MAX4831 MAX4826– MAX4831 μP FFLG NOLD TO EXTERNAL PORT OUT 1 2 3 IN GND OUT GND μDFN Functional Diagram CURRENT < 5mA DETECTOR (MAX4830/MAX4831) CURRENT < 10mA DETECTOR (MAX4826–MAX4829) NOLD REVERSE-CURRENT DETECTOR N FFLG BLANKING-TIME CIRCUITRY N GND FORWARD-CURRENT DETECTOR ON GND N IN +2.0V UNDERVOLTAGE LOCKOUT LOGIC AUTORETRY OUT GND MAX4826–MAX4831 _______________________________________________________________________________________ 9 MAX4826–MAX4831 Typical Operating Circuit Pin Configuration MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN Chip Information PROCESS: BiCMOS 10 Package Information For the latest package outline information and land patterns, go to www.maxim-ic.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 DOCUMENT NO. 6 µDFN L611+1 21-0147 ______________________________________________________________________________________ 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN REVISION NUMBER REVISION DATE 0 5/05 DESCRIPTION Initial release. PAGES CHANGED — • Added new automotive part MAX4830ELT/V+T to the Ordering Information/Selector 1 8/09 Guide table. • Added “+T” to all the part numbers in the Ordering Information/Selector Guide table. 1 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc. MAX4826–MAX4831 Revision History