S-1702 Datasheet, PDF (37/45 Pages) Seiko Instruments Inc – Built-in overcurrent protection circuit

SUPER-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION
Rev.2.2_01
S-1702 Series
3. Detector block
3. 1 Detection voltage vs. Ambient temperature
−VDET = 1.3 V
1.50
1.45
1.40
1.35
1.30
+VDET
−VDET
1.25
1.20
1.15
1.10
−40 −25 0
25 50
Ta [°C]
75 85
−VDET = 5.2 V
5.5
5.4 _+VDET
5.3
5.2
5.1
−VDET
5.0
−40 −25
0
25 50
Ta [°C]
75 85
3. 2 Hysteresis width vs. Ambient temperature
−VDET = 1.3 V
6
S-1702xAx, xBx, xCx
5
4
S-1702xDx, xEx, xFx
3
2
1 ^{S-1702xGx, xHx, xJx}
0
−40 −25
0
25 50
Ta [°C]
75 85
−VDET = 5.2 V
6
5
S-1702xAx, xBx, xCx
4
S-1702xDx, xEx, xFx
3
2
1
S-1702xGx, xHx, xJx
0
−40 −25
0
25 50
Ta [°C]
75 85
3.0
2.9
+VDET
2.8 −VDET
2.7
2.6
2.5
2.4
−40 −25
−VDET = 2.75 V
0
25 50
Ta [°C]
75 85
−VDET = 2.75 V
6
5
S-1702xAx, xBx, xCx
4
S-1702xDx, xEx, xFx
3
2
1
S-1702xGx, xHx, xJx
0
−40 −25
0
25 50
Ta [°C]
75 85
37