MAX861ESA(1996) データシートの表示（PDF） - Maxim Integrated

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MAX861ESA
(Rev.:1996)

50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters

Maxim Integrated 

50mA, Frequency-Selectable,

Switched-Capacitor Voltage Converters

+VIN

8

2

7

D1, D2 = 1N4148

C1

3 MAX860

D1

MAX861

4

5

VOUT = -VIN

C2

D2

VOUT = (2VIN) -

C3

C4 (VFD1) - (VFD2)

Figure 3. Combined Doubler and Inverter

Table 5. Product Selection Guide

PART

NUMBER

OUTPUT

CURRENT

(mA)

OUTPUT SWITCHING

RESISTANCE FREQUENCY

(Ω)

(kHz)

MAX660

100

6.5

5/40

MAX665

100

6.5

5/40

MAX860

50

MAX861

50

ICL7660

10

12

6/50/130

12

13/100/250

55

5

Compatibility with

MAX660/MAX665/ICL7660

The MAX860/MAX861 can be used in sockets

designed for the MAX660, MAX665, and ICL7660 with

a minimum of one wiring change. This section gives

advice on installing a MAX860/MAX861 into a socket

designed for one of the earlier devices.

TinhseteMadAXo6f 6S–—0H—,D—MN–A.XM6A65X,6a6n0d, MICALX7666650,

have an OSC pin

and ICL7660 nor-

mbealoovepredrraivtieonn).isIfwOitShCOisSCflofalotiantgin,gpi(nal7th(o–S—uH—gDh—N–O)SsChocualdn

be jumpered

permanently

to

.D

oVDnDottoleeanvaebl–S—eH—tDh—Ne–

MAX860/MAX861

on the MAX860/

MAX861 floating.

The MAX860/MAX861 operate with FC either floating or

connected to VDD, OUT, or GND; each connection

defines the oscillator frequency. Thus, any of the nor-

mal MAX660, MAX665, or ICL7660 connections to pin 1

will work with the MAX860/MAX861, without modifica-

tions. Changes to the FC connection are only required

if you want to adjust the operating frequency.

___________________Chip Topography

FC

VDD

C1+

GND

C1-

0.084"

(2.13mm)

SHDN

LV

OUT

0.058"

(1.47mm)

TRANSISTOR COUNT: 101

SUBSTRATE CONNECTED TO VDD

_______________________________________________________________________________________ 9

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