SP6830 Просмотр технического описания (PDF) - Signal Processing Technologies

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SP6830

Low power voltage inverters with shutdown

Signal Processing Technologies 

PINOUT

VOUT 1

VIN 2

C1- 3

SP6830

SP6831

6 C1+

5 SHDN

4 GND

PIN ASSIGNMENTS

Pin 1— VOUT — Inverting charge pump output.

Pin 2 — V — Input to the positive power

IN

supply.

Pin 3 — C1- — Negative terminal to the charge

pump capacitor.

Pin 4 — GND — Ground reference.

Pin 5 — SHDN — Active LOW Shutdown

input.

Pin 6 — C1+ — Positive terminal to the charge

pump capacitor.

VIN

C3

2 VIN

4-Phase

Clock

SD

ON

OFF

5 SHDN Shutdown

SP6830

SP6831

C1+ 6

4 GND

VOUT

Comparator VEE*

SD

Pump

Switches

C1

C1- 3

VOUT 1

*VEE = the lower voltage of VOUT and GND

C2

VOUT

RL

DEVICE C1 C2 C3

SP6830 3.3µF 3.3µF 3.3µF

SP6831 1µF 1µF 1µF

fOSC

35kHz

120kHz

Figure 1. Voltage Inverter Circuit for the SP6830/6831

Rev. 9-22-00

SP6830/6831 Low Power Voltage Inverters With Shutdown

3

© Copyright 2000 Sipex Corporation

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