bdj0601hfv 1/9 www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. compact high accuracy temperature sensor ics low current thermostat output temperature sensor ics bdj 1hfv series description bdj 1hfv series is thermostat output te mperature sensor ic with built-in te mperature detection element, constant current circuit, high-accuracy reference voltage source in one chip. temperature detec tion can be realized at 2.5 accuracy without complicated design. it is the best temperature sensor ic for a portable equipment of micro and low current, the power down function, and the battery drive. it is possibl e to use it for a wide usage such as the heat detection and temperature monitors because it prov ides with the analog output in additi on to the thermostat power output. bdj 1hfv series has 5 products at 70 ,75 ,80 ,85 ,90 detection temperature. features 1) detection temperature lineup at 70 ,75 ,80 ,85 ,90 ( 5 products ) 2) power supply voltage range 2.4 5.5v. 3) high accuracy thermostat ( typ. 1.0 , max.2.5 @ta=70 90 ) 4) high accuracy analog output ( typ. 1.0 , max. 2.5 @ta=-30 100 ) 5) analog output temperatur e sensitivity ( typ. -8.2mv/ ) 6) low supply current ( typ. 7.5ua ) 7) power down control function built in.(pd interface voltage min 1.5v) 8) small package ( typ. 1.60mm 1.60mm 0.60mm ) 9) low thermal resistance package ( typ. 187 /w ) 10) esd rating 8kv ( hbm ) applications cell p hone, digital camera,thermal protection for el ectrical equipment (notebook pc, fpd-tv, etc.) line up matrix product name detect te m p . () os output format marking product name detect te m p . () os output format marking bdj0901hfv 90 open drain active h gd bdj0751hfv 75 open drain active h gg bdj0851hfv 85 open drain active h ge BDJ0701HFV 70 open drain active h gh bdj0801hfv 80 open drain active h gf no.11047edt01
technical note 2/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. absolute maximum ratings ( ta = 25 ) parameter symbol ratings unit power supply voltage v dd -0.3 to 7.0 *1 v input voltage ( pd ) v in -0.3 to v dd +0.3 v os terminal voltage v os -0.3 to 7.0 *1 v os terminal current i os 5.0 ma power dissipation pd 536 *2 mw storage temperature range tstg -55 to 150 *1. not to exceed pd *2. reduced by 5.36mw for each increase in ta of 1 over 25 ( mounted on 70mm 70mm 1.6mm glass-epoxy pcb ) recommended operating conditions parameter symbol ratings unit min. typ. max. power supply voltage v dd 2.4 2.8 5.5 v operating temperature range topr -30 - 100 electrical characteristics ( unless otherwise specified, v dd = 2.8v, ta = 25 ) parameter symbol limits unit conditions min. typ. max. supply current normal function mode i dd - 7.5 12.0 a pd="h" power down mode i ddpd - 0.3 1.0 a pd="l" pd input l voltage v il gnd - 0.2 v input h voltage v ih 1.5 - v dd v pd leakage current i lpd - - 1.0 a pd=2.8v analog output v te m p output voltage v temp 1.279 1.300 1.321 v ta = 30 v te m p temperature sensitivity v se -8.00 -8.20 -8.40 mv/ ta = -30 to 100 v te m p load regulation Sv temp r l - - 1.0 mv difference of i out : 0ua / 2ua v temp vdd regulation S vtempvdd - - 4.0 mv v dd =2.4 5.5v os output open drain os leakage current i l - - 1.0 a v os =5.0v os output voltage v ol - - 0.4 v i os = 1.0ma radiation hardiness is not designed. temperature accuracy ( unless otherwise specified, v dd = 2.8v ) parameter symbol limits unit conditions min. typ. max. thermostat sensing temperature accuracy t acc - 1.0 2.5 sensing temperature hyster esis thys 7.5 10.0 12.5 analog output v temp temperature accuracy t temp - 1.0 2.5 v dd = 2.8v ta = -30 to 100
technical note 3/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. block diagram pin description pin no. pin name function comment 1 v temp output voltage in inverse proportion to the temperature ( typ. -8.20mv/ ) set the open state or connect high impedance input node.(over 10m ) 2 gnd ground 3 pd pd control h : normal function mode l : power down mode "h" thermostat and analog output operation. "l" power down state. 4 os digital thermostat output open drain active h. use the pull-up resistor more than 10k . 5 vdd power supply equivalent circuit pd os vtemp gnd v temp pd vref temp sensor vdd os iref 1 2 3 5 4 pd vdd gnd use the pull-up resistor more than 10k . gnd os pd gnd vdd vtemp
technical note 4/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. package outlines ( hvsof5 ) block diagram hvsof5(unit:mm) lot no. marking gnd v temp pd vref temp sensor vdd os iref + - 1 2 3 5 4 pd please adjust capacitor by the noise condition of the set. 0.1f please adjust bypass capacitor by the noise condition of the set. 1f please pull-up over 10k for os output terminal.
technical note 5/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. reference data 0.0 0.5 1.0 1.5 2.0 01234567 vdd [v] vtemp [v] 0.0 0.5 1.0 1.5 2.0 -40 -20 0 20 40 60 80 100 temp[] vtemp[v] 0 0.2 0.4 0.6 0.8 012345 i os [ma] v ol [v] -12 -10 -8 -6 -4 -2 0 2 012345 iout [ua] Svtemp [mv] ta=30c vdd=2.8v vdd=2.8v, ta=30c vdd=2.8v, ta=25c 0 5 10 15 01234567 vdd [v] idd [a] ta=30c pd="h" pd="l" fig3. vtemp voltage vs. temperature fig1. supply current(idd) vs. supply voltage fig2. vtemp voltage vs. supply voltage fig4. vtemp voltage vs. output current fig5. os output voltage vs. load current
technical note 6/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. function diagram(ex. 80 detect active h type bdj0801hfv) temperature sensor internal ic sense temperature, vtemp terminal output voltage convert temperature. vtemp value is 1.300[v] at ta = 30[ ]. the value of vtemp voltage reduce reversely pr oportional temperature at rate of ?8.2mv/ . if the temperature over detect temperature, internal comparator operate os output ?l? to ?h?.(ex.active ?h? type) in case of os return to ?l?,the temperature 10 lower than detect temperature. 0 2.0 analog temp. sensor output [v] os output voltage( vos ) [v] 1.0 vos vtemp@30 ( 1.300v ) temperature sensitivity ( -8.20mv/ typ.) detect point temperature hysteresis ( 10 typ.) temperature [ ] 1.5 2.5 3.0 0.5 110 90 70 50 10 130 -30 30 -10 -50
technical note 7/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. operation sequence (ex.80 detect active h type bdj0801hfv) bdj0801hfv operate start after pd h input. please read os terminal signal below wait time after pd ?h? input. ta symbol wait time under detect temp. t os _l 200s over detect temp. t os _h 1000s vdd hi z (pull-up hi z hi z 1.300v@ta=30 0.3a 0.3a 7.5a l level 0.2v pd idd vtemp os time 70c 80c ref volta g e h level 1.5v hi z hi z 7.5a 0.3a hi z os _l os _h hi z
technical note 8/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. notes for use 1) absolute maximum ratings an excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. if any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc. 2) gnd voltage make setting of the potential of the gnd terminal so that it will be maintained at the minimum in any operating state. 3) pin short and mistake fitting when mounting the ic on the pcb, pay attention to the orientation of the ic. if there is a placem ent mistake, the ic may be burned up. 4) operation in strong electric field be noted that using ics in the strong electric field can malfunction them. 5) mutual impedance use short and wide wiring tracks for the power supply and grou nd to keep the mutual impedance as small as possible. use a capacitor to keep ripple to a minimum.
technical note 9/9 bdj 1hfv series www.rohm.com 2011.07 - rev.d ? 2011 rohm co., ltd. all rights reserved. ordering part number b d j 0 8 0 1 h f v - t r series name detect temp. 090: 90 085: 85 080: 80 075: 75 070: 70 output format 0 : active l 1 : active h package hfv:hvsof5 packaging and forming specification tr: embossed tape and reel direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper right when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs tr () 1pin (unit : mm) hvsof5 s 0.08 m 0.1 s 4 321 5 (0.05) 1.60.05 1.00.05 1.60.05 1.2 0.05 (max 1.28 include burr) 45 32 1 (0.8) (0.91) (0.3) (0.41) 0.2max 0.130.05 0.220.05 0.6max 0.5 0.02 +0.03 ?0.02
r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the produc ts. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
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