HT70XXA-1 HOLTEK | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
Features
/c183Low power consumption /c183Low temperature coefficient /c183High input voltage range (up to 24V) /c183Output voltage accuracy: tolerance /c1773% /c183Built-in hysteresis characteristic /c183TO-92, SOT-89 and SOT-25 package
Applications
/c183Battery checkers /c183Level selectors /c183Power failure detectors /c183Microcomputer reset /c183Battery memory backup /c183Non-volatile RAM signal storage protectors
N Channel Open Drain Output (Normal Open; Active Low) Output Table & Curve VDD VDD/c62VDET(+) V DD/c163VDET(/c45) VOUT Hi-Z VSS Pin Assignment HT70XXA-1 Rev. 1.40 2 January 26, 2006 /G47 /G4E /G44 /G56 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G52 /G45 /G46 /G44 /G61 /G73 /G68 /G20 /G6C /G69 /G6E /G65 /G20 /G2E /G2E /G2E /G20 /G56 /G49 /G4E /G20 /G66 /G72 /G6F /G6D /G20 /G4C /G4F /G20 /GAE /G20 /G48 /G49 /G53 /G6F /G6C /G69 /G64 /G20 /G6C /G69 /G6E /G65 /G20 /G2E /G2E /G2E /G20 /G56 /G49 /G4E /G20 /G66 /G72 /G6F /G6D /G20 /G48 /G49 /G20 /GAE /G20 /G4C /G4F /G56 /G4F /G55 /G54 /G56 /G49 /G4E /G56 /G48 /G59 /G53 /G56 /G44 /G45 /G54 /G56 /G44 /G45 /G54 /GB4 /G31 /G2E /G30 /G35 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G53 /G53 /G53 /G4F /G54 /G2D /G38 /G39 /G54 /G4F /G2D /G39 /G32 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G53 /G53 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G46 /G72 /G6F /G6E /G74 /G20 /G56 /G69 /G65 /G77 /G42 /G6F /G74 /G74 /G6F /G6D /G20 /G56 /G69 /G65 /G77 /G53 /G4F /G54 /G2D /G32 /G35 /G4E /G43 /G4E /G43 /G54 /G6F /G70 /G20 /G56 /G69 /G65 /G77 /G30 /G58 /G58 /G41 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G53 /G53 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G53 /G53 /G4F /G55 /G54 /G56 /G44 /G44 /G56 /G53 /G53 /G37 /G30 /G58 /G58 /G41 /G2D /G31
Note: These are stress ratings only. Stresses exceeding the range specified under/c178Absolute Maximum Ratings/c178may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Electrical Characteristics
HT7022A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDET Detection Voltage /c190/c190 2.134 2.200 2.266 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 2V VOUT=0.2V 0.5 1 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1771.1 /c190 mV//c176C HT7024A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDET Detection Voltage /c190/c190 2.328 2.400 2.472 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 2V VOUT=0.2V 0.5 1 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT70XXA-1 Rev. 1.40 3 January 26, 2006
HT7027A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDET Detection Voltage /c190/c190 2.619 2.700 2.781 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 2V VOUT=0.2V 0.5 1 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT7033A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDET Detection Voltage /c190/c190 3.201 3.300 3.399 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 2.5V VOUT=0.25V 1.2 2.5 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT7039A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDET Detection Voltage /c190/c190 3.783 3.900 4.017 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 2.5V VOUT=0.25V 1.2 2.5 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT70XXA-1 Rev. 1.40 4 January 26, 2006
HT7044A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. UnitVDD Conditions VDET Detection Voltage /c190/c190 4.268 4.400 4.532 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 1.5 /c190 24 V IOL Output Sink Current 3.6V VOUT=0.36V 36 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT7050A-1 Ta=25/c176C Symbol Parameter Test Conditions Min. Typ. Max. UnitVDD Conditions VDET Detection Voltage /c190/c190 4.850 5.000 5.150 V VHYS Hysteresis Width /c190/c190 0.02 VDET 0.05 VDET 0.1 VDET V IDD Operating Current 8V No load /c190 47 /c109A VDD Operating Voltage /c190/c190 2.1 /c190 24 V IOL Output Sink Current 3.6V VOUT=0.36V 36 /c190 mA /c68 /c68 V T DET a Temperature Coefficient /c1900/c176C<Ta<70/c176C /c190/c1770.9 /c190 mV//c176C HT70XXA-1 Rev. 1.40 5 January 26, 2006 Functional Description The HT70XXA-1 series is a set of voltage detectors equipped with a high stability voltage reference which is connected to the negative input of a comparator /c190 denoted as VREF in the following figure for NMOS output voltage detector. When the voltage drop to the positive input of the comparator (i,e,V B) is higher than V REF, VOUT goes high, M1 turns off, and V B is expressed as V BH=VDD /c180 (RB+RC)/( R A+RB+RC). If VDD is decreased so that V B falls to a value less than V REF, the comparator output inverts from high to low, VOUT goes low, VC is high, M1 turns on, RC is bypassed, and VB becomes: VBL=V DD /c180 RB /( RA+RB), which is less than V BH. By so doing, the comparator output will stay low to prevent the circuit from oscillating when VB /c187VREF. If VDD falls below the minimum operating voltage, the output becomes undefined. When VDD goes from low to V DD /c180RB /( RA+RB)>V REF, the comparator output and VOUT goes high. The detectable voltage is defined as: VDET (/c45)= R+ R+ R R+ R AB C BC /c180VREF The release voltage is defined as: VDET (+) = R+ R R AB B /c180VREF The hysteresis width is: VHYS =V DET (+) /c45VDET (/c45) The figure demonstrates the NMOS output type with positive output polarity (V OUT is normally open, active low). The HT70XXA-1 series also supplies options for other output types with active high outputs. Application circuits shown are examples of positive output polarity (normally open, active low) unless otherwise specified. /G56 /G53 /G53 /G56 /G44 /G44 /G52 /G41 /G52 /G42 /G52 /G43 /G4D /G31 /G4D /G4E /G43 /G6F /G6D /G70 /G61 /G72 /G61 /G74 /G6F /G72 /G56 /G4F /G55 /G54 /G52 /G4C /G56 /G52 /G45 /G46 /G56 /G42 /G56 /G43 NMOS Output Voltage Detector (HT70XXA-1)
Rev. 1.40 6 January 26, 2006 Microcomputer Reset Circuit Normally a reset circuit is required to protect the microcomputer system from malfunctions due to power line interruptions. The following examples show how different output configurations perform a reset function in various systems. /c183NMOS open drain output application for separate power supply /c183NMOS open drain output application with R-C delay Power-on Reset Circuit With several external components, the NMOS open drain type of the HT70XXA-1 series can be used to perform a power-on reset function as shown: 5V Power Line Monitoring Circuit Generally, a minimum operating voltage of 4.5V is guaranteed in a 5V power line system. The HT7044A-1 is recommended for use as 5V power line monitoring circuit. /c1835V power line monitor with power-on reset /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G44 /G44 /G56 /G53 /G53 /G56 /G4F /G55 /G54 /G4D /G69 /G63 /G72 /G6F /G20 /G2D /G43 /G6F /G6D /G70 /G75 /G74 /G65 /G72 /G20 /G20 /G43 /G52 /G56 /G44 /G44 /G32 /G56 /G44 /G44 /G31 /G52 /G45 /G53 /G45 /G54 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G53 /G53 /G56 /G4F /G55 /G54 /G4D /G69 /G63 /G72 /G6F /G20 /G2D /G43 /G6F /G6D /G70 /G75 /G74 /G65 /G72 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G52 /G44 /G56 /G49 /G4E /G56 /G44 /G44 /G43 /G74 /G56 /G44 /G44 /G74 /G56 /G4F /G55 /G54 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G48 /G54 /G37 /G30 /G34 /G34 /G41 /G2D /G31 /G56 /G53 /G53 /G56 /G44 /G44 /G56 /G53 /G53 /G43 /G56 /G4F /G55 /G54 /G35 /G56 /G20 /G50 /G6F /G77 /G65 /G72 /G20 /G6C /G69 /G6E /G65 /G44 /G52
Rev. 1.40 7 January 26, 2006 /c183with 5V voltage regulator Change of Detectable Voltage If the required voltage is not found in the standard product selection table, it is possible to change it by using external resistance dividers or diodes. /c183Varying the detectable voltage with a resistance di - vider Detectable voltage = R+ R R AB B /c180VDET Hysteresis width = R+ R R AB B /c180VHYS /c183Varying the detectable voltage with a diode Detectable Voltage = V f1+Vf2+VDET Malfunction Analysis The following circuit demonstrates the way a circuit analyzes malfunctions by monitoring the variation or spike noise of power supply voltage. Charge Monitoring Circuit The following circuit shows a charged monitor for protection against battery deterioration by overcharging. When the voltage of the battery is higher than the set detectable voltage, the transistor turns on to bypass the charge current, protecting the battery from overcharging. /G48 /G54 /G37 /G30 /G34 /G34 /G41 /G2D /G31 /G56 /G53 /G53 /G56 /G44 /G44 /G48 /G54 /G37 /G31 /G35 /G30 /G2D /G31 /G56 /G4F /G55 /G54 /G56 /G49 /G4E /G47 /G4E /G44 /G35 /G56 /G35 /G56 /G20 /G56 /G6F /G6C /G74 /G61 /G67 /G65 /G20 /G72 /G65 /G67 /G75 /G6C /G61 /G74 /G6F /G72 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G53 /G53 /G56 /G49 /G4E /G56 /G53 /G53 /G56 /G4F /G55 /G54 /G56 /G44 /G44 /G52 /G41 /G52 /G42 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G44 /G44 /G56 /G49 /G4E /G56 /G53 /G53 /G56 /G66 /G31 /G56 /G66 /G32 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G56 /G44 /G44 /G56 /G53 /G53 /G48 /G54 /G37 /G30 /G58 /G58 /G41 /G2D /G31 /G56 /G44 /G44 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G4C /G6F /G61 /G64 /G42 /G41 /G54 /G54 /G53 /G6F /G6C /G61 /G72 /G43 /G65 /G6C /G6C /G54 /G72
Rev. 1.40 8 January 26, 2006 Level Selector The following diagram illustrates a logic level selector. /G56 /G44 /G44 /G48 /G54 /G37 /G30 /G33 /G39 /G41 /G2D /G31 /G56 /G4F /G55 /G54 /G48 /G54 /G37 /G30 /G35 /G30 /G41 /G2D /G31 /G56 /G4F /G55 /G54 /G56 /G53 /G53 /G56 /G4F /G55 /G54 /G56 /G44 /G45 /G54 /G31 /G56 /G44 /G45 /G54 /G32 /G56 /G44 /G44 /G56 /G44 /G45 /G54 /G31 /G56 /G44 /G45 /G54 /G32 /G56 /G4F /G55 /G54 /G74 /G74 /G35 /G2E /G30 /G56 /G33 /G2E /G39 /G56
Package Information
3-Pin TO-92 Outline Dimensions Symbol Dimensions in mil Min. Nom. Max. A 170 /c190 200 B 170 /c190 200 C 500 /c190/c190 D1 1 /c190 20 E9 0 /c190 110 F4 5 /c190 55 G4 5 /c190 65 H 130 /c190 160 I8 /c190 18 /c97 4/c176/c190 6/c176 HT70XXA-1 Rev. 1.40 9 January 26, 2006 /G41 /G42 /G43 /G45 /G46 /G47 /G48 /G44
3-Pin SOT-89 Outline Dimensions Symbol Dimensions in mil Min. Nom. Max. A 173 /c190 181 B6 4 /c190 72 C9 0 /c190 102 D3 5 /c190 47 E 155 /c190 167 F1 4 /c190 19 G1 7 /c190 22 H /c190 59 /c190 I5 5 /c190 63 J1 4 /c190 17 HT70XXA-1 Rev. 1.40 10 January 26, 2006 /G41 /G45 /G42 /G43 /G44 /G48 /G47 /G46 /G49 /G4A
5-Pin SOT-25 Outline Dimensions Symbol Dimensions in mm Min. Nom. Max. A 1.00 /c190 1.30 A1 /c190/c190 0.10 A2 0.70 /c190 0.90 b 0.35 /c190 0.50 C 0.10 /c190 0.25 D 2.70 /c190 3.10 E 1.40 /c190 1.80 e /c190 1.90 /c190 H 2.60 /c190 3 L 0.37 /c190/c190 /c113 1/c176/c190 9/c176 HT70XXA-1 Rev. 1.40 11 January 26, 2006 /G44 /G48 /G45 /G65 /G41 /G32 /G62 /G41 /G31 /G41 /G43 /G4C /G71
Product Tape and Reel Specifications TO-92 Reel Dimensions (Unit: mm) HT70XXA-1 Rev. 1.40 12 January 26, 2006 /G35 /G38 /G50 /G61 /G63 /G6B /G61 /G67 /G65 /G20 /G55 /G70 /G2C /G20 /G20 /G20 /G46 /G6C /G61 /G74 /G20 /G53 /G69 /G64 /G65 /G20 /G55 /G70 /G50 /G61 /G63 /G6B /G61 /G67 /G65 /G20 /G55 /G70 /G2C /G20 /G20 /G20 /G46 /G6C /G61 /G74 /G20 /G53 /G69 /G64 /G65 /G20 /G44 /G6F /G77 /G6E /G33 /G36 /G30 /G38 /G38 /G33 /G30 /G34 /G33
Symbol Description Dimensions in mm A Reel Outer Diameter 180/c1771.0 B Reel Inner Diameter 62/c1771.5 C Spindle Hole Diameter 12.75+0.15 D Key Slit Width 1.9/c1770.15 T1 Space Between Flange 12.4+0.2 T2 Reel Thickness 17/c450.4 SOT-25 Symbol Description Dimensions in mm A Reel Outer Diameter 178/c1771.0 B Reel Inner Diameter 62/c1771.0 C Spindle Hole Diameter 13.0/c1770.2 D Key Slit Width 2.5/c1770.25 T1 Space Between Flange 8.4+1.5 /c450.0 T2 Reel Thickness 11.4+1.5 HT70XXA-1 Rev. 1.40 13 January 26, 2006 /G41 /G43 /G42 /G54 /G31 /G54 /G32 /G44
TO-92 Carrier Tape Dimensions TO-92 Symbol Description Dimensions in mm I1 Taped Lead Length (2.5) P Component Pitch 12.7/c1771.0 P0 Perforation Pitch 12.7/c1770.3 P2 Component to Perforation (Length Direction) 6.35/c1770.4 F1 Lead Spread 2.5+0.4 /c450.1 F2 Lead Spread 2.5+0.4 /c450.1 /c68h Component Alignment 0/c1770.1 W Carrier Tape Width 18.0+1.0 /c450.5 W0 Hold-down Tape Width 6.0/c1770.5 W1 Perforation Position 9.0/c1770.5 W2 Hold-down Tape Position (0.5) H0 Lead Clinch Height 16.0/c1770.5 H1 Component Height Less than 24.7 D0 Perforation Diameter 4.0/c1770.2 t Taped Lead Thickness 0.7/c1770.2 H Component Base Height 19.0/c1770.5 Note: Thickness less than 0.38/c1770.05mm~0.5mm P0 Accumulated pitch tolerance: /c1771mm/20pitches. ( ) Bracketed figures are for consultation only HT70XXA-1 Rev. 1.40 14 January 26, 2006 /G46 /G31 /G46 /G32 /G50 /G32 /G50 /G30 /G44 /G30 /G57 /G32 /G57 /G30 /G57 /G57 /G31 /G50 /G48 /G30 /G48 /G48 /G31 /G74 /G44 /G68 /G6C /G31
Symbol Description Dimensions in mm W Carrier Tape Width 12.0+0.3 /c450.1 P Cavity Pitch 8.0/c1770.1 E Perforation Position 1.75/c1770.1 F Cavity to Perforation (Width Direction) 5.5/c1770.05 D Perforation Diameter 1.5+0.1 D1 Cavity Hole Diameter 1.5+0.1 P0 Perforation Pitch 4.0/c1770.1 P1 Cavity to Perforation (Length Direction) 2.0/c1770.10 A0 Cavity Length 4.8/c1770.1 B0 Cavity Width 4.5/c1770.1 K0 Cavity Depth 1.8/c1770.1 t Carrier Tape Thickness 0.30/c1770.013 C Cover Tape Width 9.3 SOT-25 Symbol Description Dimensions in mm W Carrier Tape Width 8.0/c1770.3 P Cavity Pitch 4.0 E Perforation Position 1.75 F Cavity to Perforation (Width Direction) 3.5/c1770.05 D Perforation Diameter 1.5+0.1 D1 Cavity Hole Diameter 1.5+0.1 P0 Perforation Pitch 4.0 P1 Cavity to Perforation (Length Direction) 2.0 A0 Cavity Length 3.15 B0 Cavity Width 3.2 K0 Cavity Depth 1.4 t Carrier Tape Thickness 0.20/c1770.03 C Cover Tape Width 5.3 HT70XXA-1 Rev. 1.40 15 January 26, 2006 /G50 /G44 /G31 /G57 /G50 /G31 /G50 /G30 /G44 /G45 /G46 /G74 /G4B /G30 /G42 /G30 /G41 /G30 /G43
Rev. 1.40 16 January 26, 2006 Copyright /c2112006 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek as - sumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek/c162s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233 Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 43F, SEG Plaza, Shen Nan Zhong Road, Shenzhen, China 518031 Tel: 0755-8346-5589 Fax: 0755-8346-5590 ISDN: 0755-8346-5591 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 010-6641-0030, 6641-7751, 6641-7752 Fax: 010-6641-0125 Holmate Semiconductor, Inc. (North America Sales Office) 46712 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com