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general description the max4896 8-channel relay and load driver is designed for medium voltage applications up to 50v. this device is offered in a 20-pin, 5mm x 5mm tqfn package, resulting in substantial board space savings. the max4896 8-channel relay driver offers built-in inductive kickback protection, drive for latching/ nonlatching or dual-coil relays, and open-load and short-circuit fault detection.the max4896 also protects against overcurrent conditions. each independent open-drain output features a 3 ? (typ) on-resistance, and is guaranteed to sink 200ma of load current (v s 4.5v). a built-in overvoltage protection clamp handles kick- back-voltage transients, which are common when dri- ving inductive loads. thermal-shutdown circuitry shuts off all outputs (out_) when the junction temperature exceeds +160?. the max4896 employs a reset input that allows the user to turn off all outputs simultaneously with a single control line. the max4896 includes a 10mhz spi-/qspi-/ microwire-compatible serial interface. the serial interface is compatible with ttl-/cmos-logic voltage levels and operates with a single +2.7v to +5.5v sup- ply. in addition, the spi output data can be used for diagnostics purposes including open-load and short- circuit fault detection. the max4896 is offered in the extended (-40? to +85?) and automotive (-40? to +125?) operating temperature ranges. features supports up to 50v continuous drain-to-source voltage guaranteed drive current: v s 4.5v 200ma (all channels on) 410ma (individual channels) v s 3.6v 100ma built-in output clamp protects against inductive kickback +2.7v to +5.5v logic supply voltage reset input turns off all outputs simultaneously built-in power-on reset automotive temperature range (-40c to +125c) spi-/qspi-/microwire-compatible serial interface serial digital output for daisy chaining and diagnostics flag output for p interrupt open-load and short-circuit detection and protection thermal shutdown low 100 a (max) quiescent supply current space-saving, 5mm x 5mm, 20-pin tqfn package max4896 space-saving, 8-channel relay/load driver 1 part temp range pin-package max4896etp+ -40? to +85? 20 tqfn-ep* (5mm x 5mm) max4896atp+ -40? to +125? 20 tqfn-ep* (5mm x 5mm) ordering information max4896 out8 sclk cs din reset dout pgnd gnd slpd vcc = 2.7v to 5.5v 0.1 f v s relay coil 8 out1 pdcd v relay v relay flag c int relay coil 1 typical operating circuit applications 19-3843; rev 3; 7/12 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. * ep = exposed paddle + denotes a lead(pb)-free/rohs-compliant package. industrial equipment automotive relay control white goods ate power-grid monitoring and protection equipment spi and qspi are trademarks of motorola, inc. microwire is a trademark of national semiconductor corp. pin configuration appears at end of data sheet.
max4896 space-saving, 8-channel relay/load driver 2 absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note 1: maximum continuous current at a given temperature must be calculated such that the maximum continuous power dissipation for the package is not exceeded. note 2: 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.maxim-ic.com/thermal-tutorial . (all voltages referenced to gnd.) v s ......................................................................... -0.3v to +7.0v out_ ....................................................................(-0.3v to +50v) continuous out_ voltage ...................................................+50v cs , sclk, din, reset , spld, pdcd ..................-0.3v to +7.0v dout ............................................................-0.3v to (v s + 0.3v) pgnd to gnd..(-0.3v to +0.3v) continuous out_ current, t a = +25? (note 1) all outputs on..................................................................210ma single output on .............................................................420ma continuous power dissipation (t a = +70?) 20-pin tqfn (derate 21.3mw/? above +70?) ......1702mw maximum output clamp energy (e out _) ...........................30mj operating temperature range .........................-40? to +125? junction temperature ......................................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? soldering temperature (reflow) .......................................+260? electrical characteristics (v s = +2.7v to +5.5v, t a = -40? to +125?, unless otherwise noted. typical values are at t a = +25?.) (note 3) parameter symbol conditions min typ max units operating voltage v s 2.7 5.5 v v s = 3.6v 5 70 quiescent current i cc i out _ = 0, logic inputs = 0 or v s , reset = low v s = 5v 10 100 ? dynamic average supply current i s f sclk = 10mhz, f din = 0.5 x f clk , c out = 50pf, v s = 5.5v 6ma thermal shutdown t shd +160 ? thermal-shutdown hysteresis t shdh 20 ? power-on reset v rst v s falling 1.8 2.05 2.3 v power-on-reset hysteresis v rsth 140 mv digital inputs (sclk, din, cs , reset , pdcd, spld) v s = 2.7v to 3.6v 2.0 input logic-high voltage v ih v s = 4.5v to 5.5v 2.4 v v s = 2.7v to 3.6v 0.6 input logic-low voltage v il v s = 4.5v to 5.5v 0.8 v input logic hysteresis v hyst 230 mv input leakage currents i leak input voltages = 0 or +5.5v -1 +1 ? input capacitance c in 10 pf package thermal characteristics (note 2) 20 tqfn-ep junction-to-ambient thermal resistance ( ja )...............29?/w junction-to-case thermal resistance ( jc )......................2?/w
max4896 space-saving, 8-channel relay/load driver 3 electrical characteristics (continued) (v s = +2.7v to +5.5v, t a = -40? to +125?, unless otherwise noted. typical values are at t a = +25?.) (note 3) parameter symbol conditions min typ max units relay output drivers (out1?ut8) t j = +25? 5 6 t j = +125? 11 i out = 50ma, v s = 2.7v t j = +150? 12 t j = +25? 3 4 t j = +125? 7 out_ on resistance r on i out = 100ma, v s = 4.5v t j = +150? 8 ? i out off-leakage current i leak pdcd = high or reset = low, all outputs off -1 +1 ? out clamping voltage v clamp (note 4) 50 75 v out current-limit threshold i lim v s 4.5v 400 960 ma out capacitance v out = 16v, f = 1mhz 30 pf diagnostic open-load detection voltage threshold v ds ( ol ) out_ falling 0.75 1 1.15 v open-load detection-voltage- threshold hysteresis v ds ( olh ) 40 mv out_ pulldown current ipd ( ol ) pdcd = low 150 300 500 ? fault delay/filtering time t d ( fault ) from rising edge at cs at 50% to valid diagnostic data 30 90 280 ? digital output (dout, flag ) 2.7v v s 3.6v, i sink = 0.3ma 0.4 dout low voltage v ol 4.5v v s 5.5v, i sink = 0.5ma 0.4 v 2.7v v s 3.6v, i source = 0.25ma v s - 0.5 dout high voltage v oh 4.5v v s 5.5v, i source = 0.4ma v s - 0.5 v flag low voltage i sink = 0.5ma 0.4 v flag off-leakage current 4.5v v s 5.5v, v flag = 5.5v -1 +1 ? timing from rising edge of cs at 50% to v out_ = 90%vp, vp = 15v, r l = 300 ? , c l = 50pf, 2.7v v s < 3.6v 20 turn-on time (out_) t on from rising edge of cs at 50% to v out_ = 90%vp, vp =16v, r l = 150 ? , c l = 50pf, 4.5v v s 5.5v 10 ? from rising edge of cs at 50% to v out_ = 10%vp, vp = 15v, r l = 300 ? , c l = 50pf, 2.7v v s < 3.6v 15 turn-off time (out_) t off from rising edge of cs at 50% to v out_ = 90%vp, vp = 16v, r l = 150 ? , c l = 50pf, 4.5v < v s 5.5v 10 ?
max4896 space-saving, 8-channel relay/load driver 4 electrical characteristics (continued) (v s = +2.7v to +5.5v, t a = -40? to +125?, unless otherwise noted. typical values are at t a = +25?.) (note 3) parameter symbol conditions min typ max units 2.7v v s < 3.6v 0 6 t a = +85? 4.5v v s 5.5v 11 2.7v v s 3.6v 0 5 sclk frequency f sclk t a = +125? 4.5v v s 5.5v 10 mhz 2.7v v s 3.6v 200 cycle time t ch + t cl 4.5v v s 5.5v 100 ns 2.7v v s 3.6v 100 cs fall-to-sclk rise setup t css 4.5v v s 5.5v 50 ns 2.7v v s 3.6v 100 cs rise-to-sclk hold t csh 4.5v v s 5.5v 50 ns 2.7v v s 3.6v 80 sclk high time t ch 4.5v v s 5.5v 40 ns 2.7v v s 3.6v 80 sclk low time t cl 4.5v v s 5.5v 40 ns 2.7v v s 3.6v 40 data setup time t ds 4.5v v s 5.5v 20 ns 2.7v v s 3.6v 5 data hold time t dh 4.5v v s 5.5v 0 ns 2.7v v s 3.6v 70 sclk fall-to-dout valid t do 50% of sclk to 20% of v s falling edge, c l = 50pf, 50% at sclk to 80% of v s rising edge 4.5v v s 5.5v 30 ns 2.7v v s 3.6v 2 rise time (din, sclk, cs , reset ) t scr 20% of v s to 70% of v s , c l = 50pf (note 5) 4.5v v s 5.5v 2 ? 2.7v v s 3.6v 2 fall time (din, sclk, cs , reset ) t scf 20% of v s to 70% of v s , c l = 50pf (note 5) 4.5v v s 5.5v 2 ? reset min pulse width t rw 70 ns note 3: specifications at -40? are guaranteed by design and not production tested. note 4: the output stages are compliant with the transient immunity requirements, as specified in iso 7637 part 3 with test pulses 1, 2, 3a, and 3b. note 5: guaranteed by design.
max4896 space-saving, 8-channel relay/load driver 5 quiescent current vs. supply voltage max4896 toc01 supply voltage (v) quiescent current ( a) 5.1 4.7 3.9 4.3 3.5 3.1 1 2 3 4 5 6 7 8 9 10 11 12 0 2.7 5.5 t a = +125 c all logic inputs = v s t a = +85 c t a = +25 c t a = -40 c f clk (mhz) supply current vs. f clk max4896 toc02 supply current (ma) 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.5 2.0 0.1 1 10 v s = 5v v s = 2.7v v s = 3.3v f din = 0.5 x f clk on-resistance vs. supply voltage max4896 toc 03 supply voltage (v) r on ( ? ) 5.1 4.7 3.9 4.3 3.5 3.1 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 i out _ sink = 100ma 2.0 2.7 5.5 i out _ sink = 50ma max4896 toc04 temperature ( c) r on ( ? ) 110 95 80 65 50 35 20 5 -10 -25 2 3 4 5 6 7 8 i out _ sink = 50ma 1 -40 125 on-resistance vs. temperature v s = 2.7v v s = 5v v s = 5.5v v s = 3.3v on-resistance vs. temperature max4896 toc05 temperature ( c) r on ( ? ) 110 95 80 65 50 35 20 5 -10 -25 2 3 4 5 6 7 8 v s = 2.7v 1 -40 125 v s = 3.3v v s = 5v v s = 5.5v i out _ sink = 100ma power-on reset voltage vs. temperature max4896 ds toc06 temperature ( c) power-on-reset voltage (v) 110 95 80 65 50 35 20 5 -10 -25 2.02 2.04 2.06 2.08 2.10 2.12 2.14 2.00 -40 125 output off leakage current vs. supply voltage max4896 toc07 supply voltage (v) output off leakage (pa) 5.1 4.7 3.9 4.3 3.5 3.1 10 20 30 40 50 60 70 80 90 100 v out = 50v 0 2.7 5.5 v out = 24v v out = 12v temperature ( c) out leakage current (na) out leakage current vs. temperature 100 pdcd = v s 10 1 0.1 0.01 0.001 110 95 80 65 50 35 20 5 -10 -25 -40 125 max4896 ds toc08 v out = 50v v out = 12v v out = 24v input logic threshold vs. supply voltage max4896 toc09 supply voltage (v) input logic threshold (v) 5.1 4.7 3.1 3.5 3.9 4.3 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 0.50 2.7 5.5 typical operating characteristics (t a = +25?, unless otherwise noted.)
max4896 space-saving, 8-channel relay/load driver 6 turn-on/turn-off delay time vs. supply voltage max4896 toc10 supply voltage (v) t on /t off delay time ( s) 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 0.5 1.0 1.5 2.0 2.5 3.0 0 2.7 3.6 v out = 15v r l = 300 ? c l = 50pf t off t on turn-on/turn-off delay time vs. supply voltage max4896 toc11 supply voltage (v) t on /t off delay time ( s) 5.3 5.1 4.9 4.7 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 4.5 5.5 t off t on r l = 150 ? c l = 50pf v out = 50v output current limit (ma) 450 500 550 600 700 650 750 800 400 out_ current limit vs. supply volatge max4896 toc12 supply voltage (v) 5.3 5.1 4.9 4.7 4.5 5.5 t a = -40 c t a = +125 c t a = +85 c t a = +25 c out clamp voltage vs. temperature max4896 toc13 temperature ( c) 0ut clamp voltage (v) 110 95 65 80 -10 5 20 35 50 -25 64.2 64.4 64.6 64.8 65.0 65.2 65.4 65.6 65.8 66.0 64.0 -40 125 back-emf clamping with standard +12v relay max4896 toc14 reset out (20v/div) (2v/div) 1ms/div v s = 3.3v max4896 toc15 reset 5v/div out (20v/div) back-emf clamping with standard +24v relay 1ms/div v s = 5v typical operating characteristics (continued) (t a = +25?, unless otherwise noted.)
max4896 space-saving, 8-channel relay/load driver 7 pin description pin name function 1 reset reset input. drive reset low to clear all latches and registers (all outputs are turned off). all out pulldown currents are disabled when reset = low. 2 cs chip select input. drive cs low to select the device. when cs is low, data at din is clocked into the 8-bit shift register on sclk? rising edge. drive cs from low to high to latch the data to the registers. 3 din serial data input 4 sclk serial clock input 5dout serial data output. dout is the output of the 8-bit shift register. this output can be used to daisy chain multiple max4896s. the data at dout appears synchronous to sclk? falling edge. 6 pdcd pulldown current disable. drive pdcd high to disable out? pulldown current source. drive pdcd low to enable out_ pulldown current source. pdcd must be low to detect an open-load fault. 7 spld short-protection latch-off disable input. drive spld high to disable the built-in short-circuit protection latch-off feature. when spld is low, an overloaded channel is turned off immediately. see the output short-circuit/current-limiting protection section. 8 out8 open-drain output 8. connect out8 to the low side of a relay coil. out8 is pulled to pgnd when activated and is otherwise high impedance. 9 out7 open-drain output 7. connect out7 to the low side of a relay coil. out7 is pulled to pgnd when activated and is otherwise high impedance. 10, 16 pgnd power ground. pgnd is the ground return path for the output sinks. connect pgnd pins together and to gnd. 11 out6 open-drain output 6. connect out6 to the low side of a relay coil. out6 is pulled to pgnd when activated and is otherwise high impedance. 12 out5 open-drain output 5. connect out5 to the low side of a relay coil. out5 is pulled to pgnd when activated and is otherwise high impedance. 13 gnd ground 14 out4 open-drain output 4. connect out4 to the low side of a relay coil. out4 is pulled to pgnd when activated and is otherwise high impedance. 15 out3 open-drain output 3. connect out3 to the low side of a relay coil. out3 is pulled to pgnd when activated and is otherwise high impedance. 17 out2 open-drain output 2. connect out2 to the low side of a relay coil. out2 is pulled to pgnd when activated and is otherwise high impedance. 18 out1 open-drain output 1. connect out1 to the low side of a relay coil. out1 is pulled to pgnd when activated and is otherwise high impedance. 19 v s input supply voltage. bypass v s to gnd with a 0.1? capacitor. 20 flag open-drain fault output. flag asserts low when a fault occurs at out1?ut8. ?p exposed paddle. internally connected to gnd. connect to a large pcb ground plane to improve thermal dissipation. enhances thermal conductivity; not intended as an electrical connection point.
max4896 space-saving, 8-channel relay/load driver 8 the max4896 is an 8-channel relay and load driver for medium voltage applications up to 50v. the max4896 features built-in inductive kickback protection, drive for latching/nonlatching, or dual-coil relays and an internal register for detecting open-load and short-circuit faults. each independent open-drain output features a 3 ? on- resistance and is guaranteed to sink 400ma at v s 4.5v, and 100ma at v s 3.6v. the max4896 also incorporates a logic input (pdcd) that allows the device to continue operating when an overcurrent condition lasts longer than the 280? (max) fault delay time. a built-in overvoltage protection clamp handles kickback voltage transients, which are com- mon when driving inductive loads. thermal-shutdown circuitry shuts off all outputs (out_) when the junction temperature exceeds +160?. the max4896 employs a reset input that allows the user to turn off all outputs simultaneously with a single control line. the max4896 includes a 10mhz spi-/qspi-/microwire- compatible serial interface. the serial interface is compat- ible with ttl-/cmos-logic voltage levels and operates with a single +2.7v to +5.5v supply. serial interface the serial interface consists of an 8-bit input shift regis- ter, a parallel latch (output control register) controlled by sclk and cs , and an output status register contain- ing diagnostics information. the input to the shift regis- ter is an 8-bit word. each data bit controls one of the eight outputs, with the most significant bit (d7) corre- sponding to out8, and the least significant bit (d0) corresponding to out1 (see table 1). when cs is low, data at din is clocked into the shift register synchro- nously with sclk? rising edge. driving cs from low to high latches the data in the shift register to the output control register. dout is the output of the internal output status register for diagnostics purposes (see figure 2 and tables 2 and 3). status data for each channel is transferred to the shift register at the falling edge of cs . the data bits contained in the shift register are then transferred to the dout output synchronously with sclk? falling edge. while cs is low, the switches always remain in their previous states. drive cs high after 8 bits of data have been shifted in to update the output state, and to further inhibit data from entering the shift register. when cs is high, transitions at din and sclk have no effect on the output, and the first input bit (d7) is present at dout. if the number of data bits entered while cs is low is greater or less than 8, the shift register contains only the last 8 data bits, regardless of when they were entered. the 3-wire serial interface is compatible with spi, qspi, and microwire standards. the latch that drives the analog output stages is updated on the rising edge of cs , regardless of sclk? state. diagnostic information the max4896 contains an internal output status regis- ter used for diagnostics information for each output (see tables 1, 2, and 3). when a fault condition is detected at any channel for longer than the minimum fault-filtering time (t d(fault) _min), the fault information is latched into the corresponding position in the output status register (see table 2), and the flag asserts. status/diagnostics data for each channel in the output status register is transferred to the output shift register at the falling edge of cs . while cs is low, the diagnos- tics bits are then transferred to dout synchronously with sclk? falling edge. a rising edge at cs resets the output status register data. during normal operation, the output status bit is the same as the din bit (do1 = d1, do2 = d2). when the max4896 is operating with a fault condition, the output status bit is the inverse of the din bit (do1 = 0, d1 = 1). detail description 8-bit shift register output control register (out) dout output status register (osr) latched on cs: latched on cs: din sclk cs figure 1. serial interface
max4896 space-saving, 8-channel relay/load driver 9 table 1. serial-input address table 2. serial-output address din d0 d1 d2 d3 d4 d5 d6 d7 out_ out1 out2 out3 out4 out5 out6 out7 out8 dout do0 do1 do2 do3 do4 do5 do6 do7 out_ out1 out2 out3 out4 out5 out6 out7 out8 sclk din dout t css t cl t ch t csw t csh t do t on , t off t cso t ds t dh d7 d6 d1 d0 cs out_ output status do_ status bit diagnostic off low normal operation. off high fault condtion. output open or short circuit. on low fault condition. short circuit to positive load voltage. on high normal operation. figure 2. 3-wire serial-interface timing table 3. status-register output diagnostic
max4896 space-saving, 8-channel relay/load driver 10 the minimum fault-filtering time helps mask short-dura- tion fault conditions, such as driving highly capacitive loads. the typical diagnostics software routine works as follows: write data to the max4896 wait for t d(fault) maximum to ensure diagnostics data is ready and valid write same data to the max4896 and read out the diagnostics data from the shift register use table 3 to diagnose the output state. to reduce processor overhead, an interrupt-based diagnostics routine is possible. the diagnostics routine will analyze diagnostics data only when the flag out- put triggers an interrupt. output short-circuit/current-limiting protection the max4896 channels (out_) are protected against short-circuits conditions. when the channel? output current exceeds the current-limit threshold (i lim ) for longer than the minimum fault-filtering time (t d(fault) min), the short-circuit protection is activated. the short- circuit protection behavior is determined by the logic level at spld. when spld = high, an overloaded chan- nel remains in a current-limited state until the short-cir- cuit condition is removed or thermal shutdown is reached. this allows the operation of loads where the inrush currents may exceed the max4896 internal cur- rent limit. when spld = low, an overloaded channel immediately turns off (latched-off). when a shorted output is latched off, the channel can be turned back on after the next serial input data is latched into the max4896. open-load detection the max4896 features an output pulldown current source, along with a voltage comparator, to detect an open-load fault condition. to enable the open-load detection function, pdcd must be low. the voltage at out_ is compared with the diagnostics threshold volt- age (v ds(ol) ) to determine whether a open-load fault condition exists. thermal shutdown if the junction temperature exceeds +160?, all outputs are switched off immediately (no filtering time) and flag asserts. the hysteresis is approximately +20?, disabling thermal shutdown once the temperature drops below +140?. reset the max4896 features an asynchronous reset input that allows the user to simultaneously turn all outputs off using a single control line. drive reset low to clear all latches and registers, and to turn off all outputs. while reset is low, the out pulldown currents are disabled, regardless of the state of pdcd. flag output flag is an open-drain latched output that can be con- nected to a ? interrupt and pulls low whenever a fault condition (short-circuit and/or open-load) is detected in any of the eight outputs for longer than the minimum fault-filtering time (t d(fault) min). when not using all channels, connect unused outputs to v s through a 10k ? pullup resistor to avoid inadvertently triggering the flag . flag asserts immediately, (no filtering time), when a thermal-shutdown fault condition is detected. the latch flag deasserts on cs rising edge. applications information daisy chaining the max4896 features a digital output (dout) that pro- vides a simple way to daisy chain multiple devices. this feature allows the user to drive large banks of relays using only a single serial interface. to daisy chain multi- ple devices, connect all cs inputs together and con- nect the dout of one device to the din of another device (see figure 3). during operation, a stream of serial data is shifted through all the max4896s in series. inductive kickback protection each output features an output protection clamp, limit- ing the out voltage to 65v (typ). the clamp protects against voltage transient when driving inductive loads.
max4896 space-saving, 8-channel relay/load driver 11 max4896 max4896 dout din out1 out8 pgnd pgnd gnd cs sclk v s v s 0.1 f cs sclk din device 1 device 2 dout din out1 out8 gnd cs sclk v s v s 0.1 f spi/control interface 8-bit latch channel 1 channel 2 channel 3 channel 4 channel 5 channel 6 channel 7 channel 8 gate control and current limiting open / short detect clamp overtemperature protection din dout sclk flag cs out1 out2 out3 out4 out5 out6 out7 out8 pgnd gnd reset spld pdcd v s max4896 figure 3. daisy-chain configuration functional diagram
19 20 18 17 7 6 8 cs sclk dout 9 reset out4 out5 out6 out3 12 out1 out2 45 15 14 12 11 v s flag out7 out8 spld pdcd max4896 din gnd 3 13 16 10 pgnd pgnd *ep tqfn 5mm x 5mm + top view *exposed paddle. connect to pgnd. max4896 space-saving, 8-channel relay/load driver 12 chip information process: bicmos pin configuration package information for the latest package outline information and land patterns (footprints), 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 outline no. land pattern no. 20 tqfn-ep t2055+5 21-0140 90-0010
max4896 space-saving, 8-channel relay/load driver maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim 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 guidanc e. 13 _______________maxim integrated products, inc. 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 2012 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 0 10/05 initial release 1 6/07 removal of future product notice 2 12/07 ep clarification 7 3 7/12 updated flag output section 10

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