Epson S1F70000 EPSON, S1F76610 Series, Using an External Gradient, Simultaneous Voltage Conversion

S1F76610 Series

Simultaneous Voltage Conversion

Combining a standard voltage tripler circuit with one for positive voltage conversion generates both –15 and 8.2V outputs from a single input, however, it also raises the output impedance.

A voltage doubler generates –10 and 3.8V outputs.

Using an External Gradient

The S1F7661C0B0/M0B0 offers three built-in temperature gradients— –0.1, –0.4 and –0.6%/°C.

To set the gradient externally, place a thermistor, RT, in series with the variable resistor, RRV, used to adjust the output voltage.

VDD = 0 V

	D1	10		∝F
		+			+
	D2		10 ∝F
		10		∝F
		+
					+
	5 V		10 ∝F
	D3	+	10 ∝F
	VO2 = 8.2 V
VI = –5 V

			1	14	ς
1	14		2	13	R1
2	13				RRV
		ROSC	3	12	+10 ∝Φ
3	12	1 MΩ	4	11
					RT	Ρ Π
4	11		5	10
5	10
6	9	VO1 = –15 V	6	9	VREG
7	8		7	8
	+ 10 ∝F

Potential levels

VO2 = 8.2V

VDD = 0 V

VI = –5 V

VO1 = –15 V

2–14 EPSON

S1F70000 Series Technical Manual