n overview the dn6848/se/te/s is a combination of a hall element, amplifier, schmitt circuit, and stabilized power supply/temper- ature compensator integrated on an identical chip by using the ic technology. it amplifies hall element output at the amplifi- er, converts into a digital signal through the schmitt circuit, and drives the ttl or mos ic directly. n features high sensitivity and low drift stable temperature characteristics due to the additional tem- perature compensator wide operating supply voltage range (v cc =4.5 to 16v) operating in one way magnetic field ttl and mos ics directly drivable by output output open collector n applications speed sensors position sensors rotation sensors keyboard switches microswitches note) this ic is not suitable for car electrical equipments. dn6848/se/te/s hall ic (operating temperature range topr = ? 40 to +100?c, operating in one way magnetic field) unit : mm dn6848 ssip003-p-0000a (e-3s) 1 : v cc 2 : gnd 3 : output 0.5 0.1 5? 123 2? 5? 5? 2? 1.27 4.0 0.3 0.7 4.5 0.3 0.43 + 0.1 ?0.05 2.0 0.3 0.8 0.1 1.0 10.5 0.5 unit : mm dn6848se 4.52 0.3 0.55 0.15 0.4 0.1 1.54 0.1 1.27 r0.25 2 to 5? 2? 123 (0.4) 12.5 06.5 (0.72) 4.52 0.3 (1.0) (1.0) 2? 45? ssip003-p-0000 (se-3s) 1 : v cc 2 : gnd 3 : output unit : mm DN6848TE 4.0 0.3 0.6 0.15 0.5 0.1 1.2 0.1 (0.2) 1.27 123 3.3 0.3 (0.6) (0.7) (1.0) (1.0) ssip003-p-0000b (te-3s) 1 : v cc 2 : gnd 3 : output 10.0 0.6 1.6 3.0 0.3 0.6 0.2 esop004-p-0200 (soh-4d) 1 2 4 3 unit : mm 5.4 0.4 3.0 0.3 1.5 0.3 0.4 0.2 0 to 0.1 0.15 0.95 0.2 0.3 to 0.5 1 : v cc 2 : nc or gnd 3 : output 4 : gnd dn6848s hall element ?dn6848/se/te amp. schmitt trigger output stage 3 2 1 v cc output gnd stabilized power supply temperature correction circuit n block diagram 1 hall element ?dn6848s amp. schmitt trigger output stage 3 4 2 nc or gnd v cc output gnd stabilized power supply temperature correction circuit
v cc i cc i o p d t opr t stg supply voltage supply current circuit current power dissipation operating ambient temperature storage temperature v ma ma mw ?c ?c 18 8 20 150 ?0 to +100 ?5 to +125 parameter symbol rating unit n absolute maximum ratings (ta=25?c) operating flux density 0.5 b 1 (l to h) mt 9 v cc =12v b 2 (h to l) 22 mt 11 v cc =12v hysteresis width 1 bw mt 2 v cc =12v low output voltage v ol 0.4 v v cc =4.5 to 16v v o =16v, b=0mt high output current i oh 10 a supply current ma v cc =16v i cc 5.5 ma v cc =4.5v 6 21 0.4 1.5 v v cc =4.5v, i o =12ma, b=22mt v cc =16v, i o =12ma, b=22mt parameter symbol condition min typ max unit n electrical characteristics (ta=25?c) 1.5 1.5 1.0 1.3 1.0 1.75 1.0 1.0 1.0 1.25 1.0 1.63 1.0 1.15 1.0 1.5 distance from package surface to sensor (mm) dn6848 0.7 dn6848se 0.42 DN6848TE 0.4 dn6848s 0.65 unit : mm the center of the hall element is in the hatched area in the right figure. n hall element position marking surface applied flux direction flux density (b) output voltage (v o ) b 1 b 2 n flux-voltage conversion characteristics
n precaution on use 1. change of the operation magnetic flux density does not depend on the supply voltage, because the stabilization power supply is built-in. (only for the range ; v cc = 4.5 to 16v) 2. change from ??to ??level increases the supply current by approx. 1ma. v cc = 4.5v ambient temperature (?c) supply current (ma) supply voltage ?ambient temperature 8 7 6 5 4 3 2 1 0 ?0 ?5 0 25 50 75 100 v cc = 16v ambient temperature (?c) operating flux density (mt) operating flux density ?ambient temperature 25.0 22.5 20.0 17.5 15.0 12.5 10.0 7.5 5.0 2.5 ?0 ?5 0 25 50 v cc = 4.5 to 16v b h ? l 75 100 sam ple 1 sample 2 sample 3 sample 4 ambient temperature (?c) output ??level voltage (mv) output low level voltage ?ambient temperature 100 90 80 70 60 50 40 30 20 10 0 ?0 ?5 0 25 50 v cc =12v i o =12ma 75 100 125 supply voltage (v) operating flux density (mt) operating flux density ?supply voltage 20.0 17.5 15.0 12.5 10.0 7.5 5.0 2.5 0 02468101214161820 ta =25?c n characteristics curve
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