S8880A Datasheet, PDF (18/30 Pages) Seiko Instruments Inc – ENERGY HARVESTING POWERED BY ULTRA-LOW POWER AND ULTRA-LOW VOLTAGE OPERATION BOOST CHARGE PUMP FOR STEP-UP DC-DC CONVERTER STARTUP

ENERGY HARVESTING POWERED BY ULTRA-LOW POWER AND ULTRA-LOW VOLTAGE OPERATION BOOST CHARGE PUMP FOR STEP-UP DC-DC CONVERTER STARTUP
S-8880A Series
Rev.1.0_01
2. 4 Current consumption during power-off (I_SSS)
vs. Temperature (Ta)
V_VM = 3.0 V
30
25
20
15
VIN = 0.35 V ^{VIN = 1.0 V VIN = 2.0 V}
10
5
0
40 25
0
25 50
Ta [C]
75 85
2. 5 Power-off voltage (V_OFF) vs. Temperature (Ta)
2.8
VOFF(S) = 2.5 V
2.6
2.4
2.2
VOFF(S) = 1.9 V
2.0
1.8
1.6
−40 −25
0
25 50
Ta [C]
75 85
2. 6 Discharge control switch resistance (R_M1)
vs. Temperature (Ta)
2. 7 Discharge control switch leakage current (I_LEAK)
vs. Temperature (Ta)
50
VCPOUT1(S) = 1.8 V
40
30
20
VCPOUT1(S) = 2.4 V
10
0
−40 −25
0
25 50
Ta [C]
75 85
V_VM = V_CPOUT = 3.0 V, V_IN = V_OUT = 0 V
50
40
30
VCPOUT1(S) = 1.8 V
20
VCPOUT1(S) = 2.4 V
10
0
−40 −25
0
25 50
Ta [C]
75 85
2. 8 VM pin input current (I_VM) vs. Temperature (Ta)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
−40 −25
V_VM = 3.0 V
VOFF(S) = 1.9 V
VOFF(S) = 2.5 V
0
25 50
Ta [C]
75 85
18