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for technical support and more information, see inside back cover or visit www.ti.com pt series suffix (pt1234 x ) case/pin order package configuration suffix code vertical n (ene) horizontal a (enf) smd c (eng) (reference the applicable package code drawing for the dimensions and pc board layout) PT7675?5 v 30-a 5-bit programmable integrated switching regulator slts186a - february 2003 - revised june 2003 features ? 5 v input voltage ? 30 a output current ? 5-bit programmable output: 1.075 v to 1.85 v ? 89 % efficiency ? differential remote sense ? over-current protection description the PT7675 excalibur? high perfor- mance integrated switching regulator (isr) is rated for up to 30 a. housed in a 27-pin, space-saving, solderable cop- per package, the PT7675 delivers a higher output current than many mod- ules of similar size. this makes it an ideal choice where both a high output current and minimum board space are desirable. the PT7675 operates from a +5-v input bus and produces a tightly regulated output voltage that is pro- grammable over the range, 1.075 v to 1.85 v. the output voltage set-point is selected via a 5-bit input code, which is compatible with the specification for vrm 9.0. ? over-temperature protection ? 27-pin solderable copper case ? 1.57 in2 pcb area (n suffix) ? surface mountable ? ipc lead-free 2 standard application c in = required 1500 f electrolytic c out = required 330 f electrolytic l 1 = optional 1 h input choke PT7675 4321 26 20?25 12 5 13?19 7?11 l o a d c out + c in + programming pins v in v out gnd sense(+) sense(?) stby vid0 vid1 vid2 vid3 l1 1 h gnd vid4 6 ordering information PT7675 = 1.075 to 1.85 volts the PT7675 is most suitable for powering high-end dsp, asic, and microprocessor circuits that require core or i/o logic supply voltages as low as 1.075 v. other features include output short- circuit and over-temperature protection, a standby control, and a differential remote sense to compensate for voltage drop between the regulator and load. the PT7675 is also pin compatible with the 20-a rated pt7715.
for technical support and more information, see inside back cover or visit www.ti.com programming information vid4=1 vid4=0 vid3 vid2 vid1 vid0 vout vout 1111 1.075 v 1.475 v 1110 1.100 v 1.500 v 1101 1.125 v 1.525 v 1100 1.150 v 1.550 v 1011 1.175 v 1.575 v 1010 1.200 v 1.600 v 1001 1.225 v 1.625 v 1000 1.250 v 1.650 v 0111 1.275 v 1.675 v 0110 1.300 v 1.700 v 0101 1.325 v 1.725 v 0100 1.350 v 1.750 v 0011 1.375 v 1.775 v 0010 1.400 v 1.800 v 0001 1.425 v 1.825 v 0000 1.450 v 1.850 v logic 0 = pin 12 potential; sense(C ) logic 1 = open circuit (no pull-up resistors) vid4 must not be changed while the unit is operating. * for stby pin: open =output enabled ground =output disabled. pin-out information pin function 1vid0 2vid1 3vid2 4vid3 5 stby * 6vid4 7v in 8v in 9v in 10 v in 11 v in 12 sense(C) 13 gnd 14 gnd pin function 15 gnd 16 gnd 17 gnd 18 gnd 19 gnd 20 v out 21 v out 22 v out 23 v out 24 v out 25 v out 26 sense(+) 27 do not connect PT7675 ? 5 v 30-a 5-bit programmable integrated switching regulator pin descriptions vin: the positive input voltage power node to the mod- ule, which is referenced to common gnd. gnd: this is the common ground connection for the v in and v out power connections. it is also the 0 vdc reference for the stby control input. stby*: the stby pin is an open-collector/drain negative logic input that is ref erenced to gnd. applying a low- level ground signal to this input disables the modules output and places the regulator in standby mode. when in standby, the input current drawn by the regulator is significantly reduced. if the stby input is left open- circuit, the module will produce an output whenever a valid input source is applied. vid0?vid4: selects the set-point output voltage of the regulator according to the applicable program code (see programming information). each input, vid0 through vid4, must be either connected to sense(C) or left open circuit. vout: the regulated positive power output with respect to the gnd node. the set point voltage at this node is defined by the status of the pins vid0 through vid4. sense(+): provides the regulator with the capability to regulate the set-point voltage at the load. when used with sense(C), the regulation circuitry will compensate for voltage drop between the converter and the load. this pin may be left open circuit, but connecting it to vout will improve load regulation. sense(?): this is the logic 0 reference for the inputs vid0 through vid4. it also provides the regulator with a differential remote sense capability when used with the sense(+) input. for optimum output voltage accuracy this pin should always be connected to gnd. slts186a - february 2003 - revised june 2003
for technical support and more information, see inside back cover or visit www.ti.com advance information PT7675 ? 5 v 30-a 5-bit programmable integrated switching regulator specifications (unless otherwise stated, t a =25 c, v in =5 v, c in =1,500 f, c out =330 f, v o =1.8 v, and i o =i o max) PT7675 characteristics symbols conditions min typ max units output current i o t a = 60 c, 200lfm, pkg n 0 30 a t a = 25 c, natural convection 0 29 input voltage range v in over i o range 4.5 5.5 v set-point voltage tolerance v o tol all output voltages 10 25 (1) mv temperature variation reg temp C40 c t a +85 c, i o =i o min 1 %v o line regulation reg line over v in range 5 mv load regulation reg load over i o range 5 mv total output voltage variation ? v o tol includes set-point, line, load, 1.5 2.5 %v o C40c t a +85c efficiency i o =15 a v o =1.8 v 89 v o =1.5 v 87 % v o =1.2 v 85 i o =30 a v o =1.8 v 84 v o =1.5 v 82 % v o =1.2 v 79 v o ripple (pk-pk) v r 20 mhz bandwidth 40 mv pp transient response t tr 1 a/s load step, 50 % and 100 % i o max 25 sec v os v o over/undershoot 200 (2) mv over-current threshold i trip reset followed by auto-recovery 38 a switching frequency ? s over v in range 250 300 350 khz stby* input requirements input high voltage v ih referenced to gnd 2.0 open (3) v input low voltage v il -0.2 0.8 input low current i il pin 5 to gnd C0.3 ma standby input current i in standby pin 5 to gnd 6 ma external input capacitance c in 1,500 f external capacitance c out 330 (4) 15,000 f operating temperature range t a over v in range C40 85 (5) c solder reflow temperature t reflow surface temperature of module pins or case 215 (6) c storage temperature t s C40 125 c reliability mtbf per bellcore tr-332 3.4 10 6 hrs 50 % stress, t a =40 c, ground benign mechanical shock per mil-std-883d, method 2002.3 500 gs 1 msec, half sine, mounted to a fixture mechanical vibration mil-std-883d, method 2007.2 suffixes a 20 (7) gs 20-2000 hz suffix c, n 20 (7) weight vertical/horizontal 36 grams flammability materials meet ul 94v-0 notes: (1) if the remote sense ground is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy. (2) the transient response may be improved by placing additional capacitors with low equivalent series resistance (esr) on the o utput. (3) the stby* control (pin 5) has an internal pull-up. if it is left open-circuit, the module will operate when input power is a pplied. a low-leakage (<1 a) mosfet must be used to control this pin. the open-circuit voltage may be as high as vin. (4) for operation below 0 c, cin and cout must have stable characteristics. use either low esr tantalum or oscon? capacitors. (5) see safe operating area curves or consult factory for the appropriate derating. (6) during reflow of smd package version do not elevate the module case, pins, or internal component temperatures above a peak o f 215 c. for further guidance refer to the application note, reflow soldering requirements for plug-in power surface products, (slta051). (7) the case pins on the through-hole package types (suffixes n & a) must be soldered. for more information see the applicable p ackage outline drawing. external capacitors: the regulator require a minimum output capacitance of 330 f for proper operation. an input capacitance of 1500 f is also req uired. this must be rated for a minimum of 1.1 arms of ripple current. for transient or dynamic load applications, additional capacitance may be required. for further informa- tion refer to the application note regarding capacitor selection for this product. input filter: an input filter inductor is optional for most applications. the inductor must be sized to handle 30 adc with a typical value of 1 h. slts186a - february 2003 - revised june 2003
for technical support and more information, see inside back cover or visit www.ti.com advance information performance characteristics, v in =5 v (see note a) safe operating area curves (see note b) efficiency vs output current ripple vs output current power dissipation vs output current PT7675 ? 5 v 30-a 5-bit programmable integrated switching regulator typical characteristics note a: all characteristic data in the above graphs has been developed from actual products tested at 25c. this data is considered ty pical for the isr. note b: soa curves represent operating conditions at which internal components are at or below manufacturers maximum rated operating temperatures. 50 60 70 80 90 100 0 5 10 15 20 25 30 iout - am p s efficiency - % 1.8v 1.5v 1.2v v out 0 20 40 60 80 100 0 5 10 15 20 25 30 iout - am p s ripple - mv 1.8v 1.5v 1.2v v out 0 2 4 6 8 10 12 0 5 10 15 20 25 30 iout - am p s pd - watts 1.8v 1.5v 1.2v v out 20 30 40 50 60 70 80 90 0 5 10 15 20 25 30 iout ( a ) ambient temperature (c) 400lfm 200lfm 100lfm nat conv airflow PT7675, v in =5 vdc, v out =1.2 v slts186a - february 2003 - revised june 2003
application notes for technical support and more information, see inside back cover or visit www.ti.com pt7670 series sense pins disconnected will not damage the regulator. an internal 15 ? resistor, connected between each sense pin and its corresponding output node, keeps the output voltage in regulation. if the remote sense feature is not used it is important to at least connect the sense(C) pin to gnd locally, as this provides a return path for the regulators internal bias currents. with the sense leads connected, the difference between the voltage measured between the v out and gnd pins, and that measured between the sense(+) and sense(C) pins, is the amount of ir drop being compensated by the regulator. this should be limited to 0.6 v. (0.3 v maximum between pins 25 & 26, and also between pins 12 & 13). note: the remote sense feature is not designed to compensate for the forward drop of non-linear or frequency dependent components that may be placed in series with the converter output. examples include or-ing diodes, filter inductors, ferrite beads, and fuses. when these components are enclosed by the remote sense connections they are effectively placed inside the regulation control loop, which can adversely affect the stability of the regulator. over-temperature protection the pt7670 series of isrs incorporates an on-board temperature sensor, which protects the modules internal circuitry against excessively high temperatures. a rise in the temperature of the internal components may be the result of a drop in air flow, or a high ambient temperature. if the modules internal temperature exceeds its otp threshold (see data sheet specifications), the regulator output is disabled and the output voltage is reduced to zero. the re covery is automatic, and begins with a soft- start power up. it occurs when the the sensed temperature decreases by about 10 c below the trip point. note: the over-temperature protection is a last resort mecha- nism to prevent thermal stress to the regulator. operation at or close to the thermal shutdown temperature is not r ecom- mended and will reduce the long-term reliability of the module. always operate the regulator within the specified safe operating area (soa) limits for the worst-case conditions of ambient temperature and airflow. over-current protection to protect against load faults, the pt7670 series of regula- tors incorporates output over-current protection. applying a load that exceeds the r egulators over-current threshold (see data sheet specifications) will cause the regulated output to shut down. following shutdown the isr will periodically attempt to recover by initiating a soft-start power-up. this is often described as a hiccup mode of operation, whereby the module continues in the cycle of successive shutdown and power up until the load fault is removed. during this period, the average current flowing into the fault is significantly reduced. once the fault is removed, the converter automatically recovers and returns to normal operation. differential remote sense connecting the sense(+) and sense(-) pins to the load circuit allows the regulator to compensate for limited amounts of ir voltage drop. this voltage drop is caused by current flowing through the trace resistance between the power converter and the point of regulation some distance away. although not recommended, leaving the operating features and system considerations for the pt7670 series of isrs power up & soft-start timing following either the application of a valid input source voltage, or the removal of a ground signal to the stby control pin (with input power applied), the regulator will initiate a soft-start power up. the soft start slows the rate at which the output voltage rises, and also introduces a short time delay of approx. 10ms. figure 1-1 shows the power-up characteristic of a pt7671 with a 15-a load, and with the output voltage programmed to 3.3 v. vo (2v/div) iin (10a/div) vin (2v/div) horiz scale: 10ms/div figure 1-1
for technical support and more information, see inside back cover or visit www.ti.com application notes table 2-1: input/output capacitors capacitor recommendations for the pt7670 series of 30-a switching regulators input capacitor: the recommended input capacitor is determined by a minimum of 1,500 f of capacitance with a ripple cur- rent rating of 1.1 arms. ripple current and <100 m ? equivalent series resistance (esr) values are the major considerations, along with temperature, when designing with different types of capacitors. tantalum capacitors have a recommended minimum voltage rating of twice 2 (the maximum dc voltage + ac ripple). this is necessary to insure reliability for input voltage bus applications. output capacitors: the esr of the required capacitors is less than 100 m ? . electrolytic capacitors have marginal ripple performance at frequencies greater than 400 khz but excellent low frequency transient response. above the ripple frequency, ceramic capacitors are necessary to improve the transient response and reduce any high frequency noise components apparent during higher current excursions. preferred low esr type capacitor part numbers are identified in table 2-1. pt7670 series tantalum capacitors( optional output capacitors) tantalum type capacitors can be used for the output but only the avx tps, sprague 593d/594/595, or kemet t495/t510 series. these capacitors are recommended over many other tantalum types due to their higher rated surge, power dissipation, and ripple current capability. as a caution the taj series by avx is not recommended. this series has considerably higher esr, reduced power dissipation, and lower ripple current capability. the taj series is also less reliable than the avx tps series when determining power dissipation capability. tantalum or oscon? types are recommended for applications where ambient temperatures fall below 0 c. capacitor table table 2-1 identifies the characteristics of capacitors from a number of vendors with acceptable esr and ripple cur- rent (rms) ratings. the number of capacitors required at both the input and output buses is identified for each capacitor type. this is not an extensive capacitor list. capacitors from other vendors are available with comparable specifications. those listed are for guidance. the rms ripple current rating and esr (at 100 khz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. / r o d n e v r o t i c a p a c s e i r e s s c i t s i r e t c a r a h c r o t i c a p a cy t i t n a u q g n i k r o w e g a t l o v ) f ( e u l a vt n e l a v i u q e ) r s e ( e c n a t s i s e r s e i r e s e l p p i r m u m i x a m c 5 0 1 @ t n e r r u c ) s m r i ( e z i s l a c i s y h p ) m m ( t u p n i s u b t u p t u o s u b r e b m u n r o d n e v ) t m s ( k f c i n o s a n a p ) l a i d a r ( c f v 5 2 v 5 3 v 6 1 v 6 1 0 0 2 2 0 3 3 0 7 4 0 0 5 1 8 3 0 . 0 ? 0 8 0 . 0 ? 0 9 0 . 0 ? 3 4 0 . 0 ? a m 0 0 8 1 a m 0 5 8 a m 5 5 7 a m 0 9 6 1 6 1 5 . 6 1 0 1 2 . 0 1 0 1 5 . 2 1 6 1 5 1 1 1 1 1 1 1 m 2 2 2 e 1 k f v e e p 1 3 3 v 1 k f v e e 1 7 4 c 1 c f u e e s 2 5 1 c 1 c f u e e n o c - i m e h c d e t i n u z x l x f v 5 2 v 6 1 v 0 1 0 3 3 0 0 5 1 0 8 6 0 9 0 . 0 ? 8 3 0 . 0 ? 5 1 0 . 0 ? a m 0 6 7 a m 0 6 6 1 a m 5 3 7 4 0 1 5 . 2 1 5 . 2 1 0 2 0 1 5 . 0 1 1 2 1 1 1 l l 2 1 x 0 1 m 1 3 3 b v 5 2 z x l l l 0 2 x 2 1 m 2 5 1 b v 6 1 z x l m 0 8 6 x f 0 1 s e i r e s l p n o c i h c i n ) t m s ( x n v 5 2 v 0 1 v 0 1 0 9 3 0 0 5 1 0 3 3 0 8 0 . 0 ? 0 5 0 . 0 ? 4 2 0 . 0 ? a m 0 2 7 a m 0 3 3 1 a m 0 7 7 3 5 . 2 1 5 1 6 1 5 1 0 1 8 1 5 1 1 1 6 h h m 1 9 3 e 1 l p u 6 h h m 2 5 1 a 1 l p u s g 1 r c m 1 3 3 a 1 x n p ) l a i d a r ( p s n o c - s o ) t m s ( p v s v 0 1 v 0 1 0 7 4 0 3 3 5 1 0 . 0 ? 7 1 0 . 0 ? a m 0 1 5 4 > a m 0 5 9 3 > 0 1 5 . 0 1 9 2 1 3 . 8 3 4 1 1 m 0 7 4 p s 0 1 m 0 3 3 p v s 0 1 m u l a t a n a t x v a s e i r e s - s p t v 0 1 v 0 1 0 3 3 0 3 3 0 1 . 0 ? 6 0 . 0 ? a m 4 1 4 1 a m 6 2 8 1 l 3 . 7 w 3 . 4 h 1 . 4 5 5 1 1 0 0 1 0 r 0 1 0 m 7 3 3 v s p t 0 6 0 0 r 0 1 0 m 7 3 3 v s p t m u l a t n a t e u g a r p s d 4 9 5 / d 5 9 5 v 0 1 v 0 1 0 3 3 0 8 6 4 0 . 0 5 1 1 0 . 0 = 4 ? 9 0 . 0 ? a m 0 0 5 4 > a m 0 1 5 1 > l 3 . 7 w 7 . 5 h 0 . 4 5 2 1 1 t 2 r 0 1 0 0 x 7 3 3 d 4 9 5 t 2 r 0 1 0 0 x 7 8 6 d 5 9 5 m u l a t n a t t e m e k ) t m s ( 5 9 4 t / 0 1 5 t v 0 1 v 0 1 0 3 3 0 2 2 5 3 0 . 0 ? 0 . 0 7 5 3 0 . 0 = 2 ? a m 0 0 0 2 a m 0 0 0 2 > w 3 . 4 l 3 . 7 h 0 . 4 5 6 1 2 s a 0 1 0 m 7 3 3 x 0 1 5 s a 0 1 0 m 7 2 2 x 5 9 4 t p a c s o p o y n a s ) t m s ( b p t v 0 10 2 24 0 . 0 ? a m 0 0 0 3l 2 . 7 w 3 . 4 h 1 . 3 62 m 0 2 2 b p t 0 1
application notes for technical support and more information, see inside back cover or visit www.ti.com pt7670 series using the standby function on the pt7670 series of 30-a switching regulators for applications requiring on/off control of the output voltage, the 30-a rated pt7670 series of excalibur isrs incorporate an on/off standby function. this feature may be used for power-up/shutdown sequencing, or to change the output voltage while input power is applied. see r elated notes: pin-coded output voltage adjustment of the pt7670 series of 30-a isrs. the standby function is provided by the stby* control, pin 5. if pin 5 is left open-circuit the regulator operates normally, providing a regulated output whenever a valid supply voltage is applied to v in (pins 7-11) with respect to gnd (pins 13-19). connecting pin 5 to ground 1 will disable the regulator output 2 . this places the regulator in standby mode, and reduces the input current to typically 6ma. if a ground signal is applied to pin 5 prior to power- up, the regulator output will remain inactive during the period that input power is applied. the standby input must be controlled with an open- collector (or open-drain) discrete transistor (see figure 3-1). t able 3-1 gives the input requirements. table 3-1 standby control input requirements parameter min typ max enable 2 v open cct. 1 disable C0.2 v 0.8 v i stby (low) 0.5 ma vstby (o/c) v in notes: 1. the standby input of the pt7 670 series of regulators should be controlled using an open-collector (or open- drain) discrete transistor. do not use a pull-up resistor. the control input has an open-circuit voltage equal to v in . to set the regulator output to zero, the control pin must be pulled to less than 0.8vdc with a 0.5ma sink to ground. figure 3-1 turn-on time: turning q 1 in fig. 3-1 off, removes the low-voltage signal at pin 5 and enables the output 3 . af- ter a delay of less than 5 ms, the output voltage rises to full regulation within 30 ms 4 . fig. 3-2 shows the typical output voltage waveform of a pt7671 following the turn-off of q 1 at time t =0 secs. in the circuit of fig. 3-1, the output voltage is set to 3.3 v. the waveform was measured with a +5-v input source voltage, and 15-a output load. figure 3-2 c out + c in + 5 v com inhibit l o a d pt7671 43 1 26 20 ? 25 12 513 ? 19 7 ? 11 vo vin gnd senes(+) stby vid3 - vid0 senes( ? ) v o =3.3 v com q 1 bss138 2 iin (5a/div) vo (2v/div) vstby (5v/div) horiz scale: 5ms/div 2. in the standby mode the output of the regulator is tri- state, and the output voltage falls at the rate that the load circuit discharges the output filter capacitors. 3. when the ground signal to the standby pin is removed, the regulator output initiates a soft-start cycle by first asserting a low impedance to ground. if an external voltage is applied to the output bus, it will sink current and possibly over-stress the part. 4. the turn-off time of q 1 , or rise time of the standby input is not critical. turning q 1 off slowly will not affect regulator operation. however, a slow turn-off time will increase both the initial delay and rise-time of the output voltage.
for technical support and more information, see inside back cover or visit www.ti.com application notes pt7670 series pin-coded output voltage adjustment of the pt7670 series of 30-a switching regulators the pt7670 excalibur? family of converters use a pin code to adjust the output voltage. this feature uses the control inputs, vid0Cvid4 (pins 1C6). when these pins are left open-circuit, the isr regulates at its default output voltage. each of the programming pins are internally connected to a precision resistor, and when pulled low 1 applies a weighted change to the output voltage. by selectively connecting vid0Cvid4 to sense(C) 2 , the output voltage of these isrs can be programmed in incremental steps over their specified output voltage range. the program codes and output voltages offered by these isrs are compatible with the voltage id specifications used by popular microprocessors. see figure 4-1 for the connection schematic, and the respective device data sheet for the programming code information. notes: 1. the programming convention is as follows:- logic 0:connect to pin 12; sense(C). logic 1:open circuit/open drain (see note 2) 2. for optimal output voltage accuracy sense(C) (pin 12) should always be used as the logic 0 reference. the input/output ground (pins 13-19) can also be used if pin 12 is connected to pin 13 external to the module. 3. do not connect pull-up resistors to the voltage programming pins. figure 4-1 4. if active devices are used to ground the voltage control pins, low-level open drain mosfet devices should be used over bipolar transistors. the inherent v ce (sat) in bipolar devices introduces errors in the devices internal divider network. discrete transistors such as the bss138, 2n7002, or irlml2402 are examples of appropriate devices. active voltage programming: special precautions should be taken when making changes to the output voltage progam code while the unit is powered. this activity can induce current transients through the device as a result of the electrolytic output capacitors being either charged or discharged to the new output voltage set-point. the transient current can be minimized by making only incremental changes to the binary code, i.e. one lsb at a time. a minimum of 100s settling time between each program state is also recom- mended. making non-incremental changes to vid3 or vid4 is discouraged. when active devices are used to program the output voltage, their state should be asserted prior to the input power being applied. one approach is to pull stby (pin 5) control to gnd prior to power up. after the host board has then asserted the program code, the ground signal to pin 5 can be removed. this will allow the regulator to intiate a clean soft-start power-up to the desired pr ogram voltage. for more information on the use of the standby function, consult the related application note, using the standby function on the pt7670 series of 30-a switching regulators. c out + c in + 1 h (optional) v in com stby l o a d q 1 l 1 sense( ? ) v out power gnd pt7671 43 1 26 20 ? 25 12 513 ? 19 7 ? 11 v out v in gnd sns(+) sns( ? ) stby vid4 - vid0 2 6
mechanical data mmsi031 ? september 2001 1 post office box 655303 ? dallas, texas 75265 ene (r?msip?t27) metal single-in-line module 4203526/a 08/01 3.00 (76,20) max. 1.02 (25,90) max. 0.160 (4,06) typ. 0.050 (1,27) typ. 0.100 (2,54) typ. 0.025 (0,63) typ. 0.500 (12,70) pc layout 2.928 (74,37) 3.028 (76,91) 0.090 (2,28) 2 places 0.100 (2,54) 26 places ?0.045 (1,14) min. 27 places 0.017 (0,43) typ. 0.050 (1,27) note e 0.050 (1,27) typ. 0.140 (3,55) min. see note f 0.66 (16,76) max. ?0.093 (2,36) min. 4 places plated through holes. see note g. 0.110 (2,79) 0.70 (17,78) 0.040 (1,01) 0.54 (13,71) 0.350 (8,89) plated through note g 1 1 0.164 (4,16) suffix n notes: a. all linear dimensions are in inches (mm). b. this drawing is subject to change without notice. c. 2 place decimals are 0.030 ( 0,76mm). d. 3 place decimals are 0.010 ( 0,25mm). e. recommended mechanical keep out area. f. electrical pin length mounted on printed circuit board, from seating plane to pin end. g. the case may be electrically connected to power ground plane.
mechanical data mmsi032 ? september 2001 1 post office box 655303 ? dallas, texas 75265 enf (r?msip?t27) metal single-in-line module 4203527/a 08/01 3.00 (76,20) max. 1.02 (25,90) max. 0.160 (4,06) typ. 0.050 (1,27) typ. 0.100 (2,54) typ. 0.025 (0,63) typ. 0.500 (12,70) max. 1.19 (30,22) pc layout 0.100 (2,54) 26 places ?0.045 (1,14) min. 27 places 0.017 (0,43) typ. 0.050 (1,27) typ. 0.140 (3,55) min. see note f plated through note g 1 plated through holes. see note g. 0.110 (2,79) ?0.093 (2,36) min. 4 places 0.160 (4,06) 0.040 (1,01) 0.090 (2,28) 0.164 (4,16) 2 places 0.280 (7,11) 4 places note e (23,75) 1 0.840 (21,33) 0.935 0.080 (2,03) 0.050 (1,27) note h 2.928 (74,37) 3.028 (76,91) suffix a notes: a. all linear dimensions are in inches (mm). b. this drawing is subject to change without notice. c. 2 place decimals are 0.030 ( 0,76mm). d. 3 place decimals are 0.010 ( 0,25mm). e. recommended mechanical keep out area. f. electrical pin length mounted on printed circuit board, from seating plane to pin end. g. the case may be electrically connected to power ground plane. h. case outline reference.
mechanical data mmsi033 ? september 2001 1 post office box 655303 ? dallas, texas 75265 eng (r?msip?g27) metal single-in-line module 4203528/a 08/01 3.00 (76,20) max. 1.02 (25,90) max. 0.160 (4,06) typ. 0.050 (1,27) typ. 0.100 (2,54) typ. 0.025 (0,63) typ. 0.500 (12,70) max. 1.19 (30,22) pc layout 0.100 (2,54) 26 places 0.050 (1,27) typ. detail ?a? note g note f 0.070 (1,77) ?0.093 (2,36) min. 4 places 0.090 (2,28) see note g. plated through holes. 0.140 (3,55) 0 ?6 0.080 (2,03) seating plane 0.006 (0,15) 0.017 (0,43) typ. note h 0.050 (1,27) 27 places 0.100 (2,54) 0.050 (1,27) 0.100 (2,54) detail ?a? 1 0.165 (4,19) note e 0.050 (1,27) 0.210 (5,33) 0.090 (2,28) 2 places 0.164 (4,16) 0.280 (7,11) 0.840 (21,33) 1 0.040 (1,01) 1.020 (25,90) 2.928 (74,37) 3.028 (76,91) 0.230 (5,84) 0.050 (1,27) note i 0.047 (1,19) suffix c gage plane notes: a. all linear dimensions are in inches (mm). b. this drawing is subject to change without notice. c. 2 place decimals are 0.030 ( 0,76mm). d. 3 place decimals are 0.010 ( 0,25mm). e. recommended mechanical keep out area. f. vias are recommended to improve copper adhesion. g. solder mask openings to copper island for solder joints to mechanical pins. electrically connect case to power ground plane. h. power pin connections should utilize two or more vias per input, ground and output pin. i. case outline reference.
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