XA6121 Datasheet, PDF (7/27 Pages) Torex Semiconductor – ウォッチドッグ ON/OFF 機能付き電圧検出器（VDF=1.6V～5.0V

XA6121/XA6122/XA6123/XA6124
γϦʔζ
˙çؾితಛੑ
߲ç ç ໨
هç ߸
WD λΠϜΞ΢τ࣌ؒ
ʢV_DFLʽ1.8Vʣ
t_WD
WD λΠϜΞ΢τ࣌ؒ
ʢ V_DFLʾ1.9V ʣ
t_WD
WD ࠷খύϧε෯
WD H Ϩϕϧిѹ
WD L Ϩϕϧిѹ
WDpull-down ఍߅
EN/ENB H Ϩϕϧిѹ
EN/ENB L Ϩϕϧిѹ
EN pull-up ఍߅^ˎ2
ENB pull-down ఍߅^ˎ3
T_WDIN
V_WDH
V_WDL
R_WD
V_ENH/ V_ENBH
V_ENL/ V_ENBL
R_EN
R_ENB
ଌç ఆç ৚ç ݅
֨ç نç ஋
V_IN Λ 1.0Vˠ2.0V ʹมԽɺϦηοτग़ྗ୺ࢠ͕
ղআ͔ͯ͠Βݕग़͢Δ·Ͱͷ࣌ؒʢWD=V_SSʣ
V_IN Λ 1.0VˠV_DFLʷ1.1V ʹมԽɺϦηοτग़ྗ
୺ࢠ͕ղআ͔ͯ͠Βݕग़͢Δ·Ͱͷ࣌ؒ
Ê¢WD=V_SSÊ£
V_IN=6V,WD ୺ࢠʹ 6Vˠ0V ͷύϧεҹՃ
V_IN=V_DFLʷ1.1Vʙ6V
V_IN=V_DFLʷ1.1Vʙ6V
V_WD=6V, R_WD=V_WD/I_WD
V_IN=V_DFLʷ1.1Vʙ6V
V_IN= V_DFLʷ1.1Vʙ6V
V_IN=6V,EN=0Vç R_EN=V_IN/I_EN
V_IN=6V,ENB=6Vç R_ENB=ENB/I_ENB
37
75
150
300
600
1200
37
75
150
300
600
1200
300
V_INÊ·0.7
0
300
1.3
0
1.0
50
100
200
400
800
1600
50
100
200
400
800
1600
600
1.6
63
125
250
500
1000
2000
63
125
250
500
1000
2000
6
V_INÊ·0.3
1000
V_IN
0.35
2.4
Ta=25ˆ
୯Ґ
ଌఆ
ճ࿏
ms
5
ms
5
ns
6
V
6
kЊ
7
V
8
MЊ
9
(஫ 1)ଌఆ৚݅ʹ EN/ENB ୺ࢠͷنఆ͕ͳ͍৔߹ɺEN=V_INɺENB=V_SS ͱ͢Δɻ
(஫ 2)V_DFL(T):ઃఆݕग़ిѹ஋ɻ
ˎ1ɿফඅిྲྀ͸΢Υονυοάػೳ͕ ON ͍ͯ͠Δͱ͖ͷ৚݅Λࣔ͢ɻ
ç ç EN/ENB ୺ࢠ͸ CMOS ೖྗͱͳ͓ͬͯΓ·͕͢ɺXA6122/XA6124 γϦʔζ͸ WD ػೳ OFF ࣌ʹԼهͷ෼ɺফඅిྲྀ͕૿Ճக͠·͢ɻ
XA6122 γϦʔζɿʢV_IN-V_ENLʣ/1.6MЊʢTYPʣ
XA6124 γϦʔζɿV_ENBH/1.6MЊʢTYPʣ
ˎ2ɿXA6122 γϦʔζͷΈଌఆɻ
ˎ3ɿXA6124 γϦʔζͷΈଌఆɻç ç ç ç
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