–2.2V) is shown in the following figure. Note that diode D1 should have a maximum forward voltage of 0.6V with 1.0mA forward current. 2. R min can be varied depending on the input voltage. EPSON 1–2 SCI7000 Series Technical Manual...
Page 4
Clock frequency = 1MΩ, V = –5V Ω Output impedance = 10mA, V = –5V — Multiplication efficiency Peff = 5mA, V = –5V — µA OSC1 Input leakage current = –8V — — EPSON 1–3 SCI7000 Series Technical Manual...
Clock frequency vs. Ambient temperature = 40kHz Ta = 25 = –5.0V Ta = 25°C –5 20kHz 10kHz –10 –15 –7 –6 –5 –4 –3 –2 –1 [mA] Multiplier current vs. Input voltage Output voltage vs. Output current EPSON 1–4 SCI7000 Series Technical Manual...
Page 6
Ta = 25°C Ta = 25°C = 7mA = 10mA –7 –6 –5 –4 –3 –2 –1 –7 –6 –5 –4 –3 –2 –1 Output impedance vs. Input voltage Output impedance vs. Input voltage EPSON 1–5 SCI7000 Series Technical Manual...
Page 7
Multiplication efficiency vs. Clock frequency Multiplication efficiency vs. Clock frequency Ta = 25°C Ta = 25°C = –5.0V = –3.0V Peff Peff [mA] [mA] Multiplication efficiency/input current vs. Multiplication efficiency/input current vs. Output current Output current EPSON 1–6 SCI7000 Series Technical Manual...
' = V = –5 10µF 10µF 1MΩ 1MΩ 10µF 10µF = –10 V = V ' = –15 V Potential levels (0 V) (–5 V) (–10 V) (–15 V) Primary stage Secondary stage EPSON 1–8 SCI7000 Series Technical Manual...
Page 10
–10 and 3.8 V outputs = 3.8 V from a single input. = 0 V = –5 V = 0 V = –10 V = –5 V = 3.8 V 10µF 10µF = –10 V 1MΩ 10µF 10µF EPSON 1–9 SCI7000 Series Technical Manual...