ATA5428-PLSW datasheet(30/100 Pages) ATMEL

30 / 100 page

4841D–WIRE–10/07

ATA5423/ATA5425/ATA5428/ATA5429

Power Supply

Figure 5-1.

Power Supply

The supply voltage range of the ATA5423/ATA5425/ATA5428/ATA5429 is 2.4V to 3.6V or 4.4V

to 6.6V.

Pin VS1 is the supply voltage input for the range 2.4V to 3.6V and is used in 1 Li battery applica-

tions (3V) using a single lithium 3V cell. Pin VS2 is the voltage input for the range 4.4V to 6.6V

(2 Li battery application (6V) and Base-station Application (5V); in this case, the voltage regula-

tor V_REG1 regulates VS1 to typically 3.25V. If the voltage regulator is active, a blocking

capacitor of 2.2 µF has to be connected to VS1.

Pin VAUX is an input for an additional auxiliary voltage supply and can be connected, for exam-

ple, to an inductive supply (see Figure 5-6 on page 36). This input can only be used together

with a rectifier or as in the application shown in Figure 2.2 on page 8 and must otherwise be left

open.

Pin VSINT is the voltage input for the Microcontoller_Interface and must be connected to the

power supply of the microcontroller. The voltage range of V

VSINT is 2.4V to 5.25V (see Figure 5-5

on page 35 and Figure 5-6 on page 36).

V_REG2

3.25V typ.

V_Monitor

(2.3V/

2.38V typ.)

V_Monitor

(1.5V typ.)

V_REG1

3.25V typ.

SW_DVCC

Low_Batt

(Status Register

and Reset Logic)

VSOUT_OK

(to XTO and

Reset Logic)

DVCC_OK

(to XTO and

Reset Logic)

SW_VSOUT

VSOUT_EN

VAUX

SW_AVCC

OUT

VS1+

0.55V

typ.

FF1

PWR_ON

VSINT

AVCC_EN

DVCC_OK

OFFCMD

P_On_Aux

(Command via SPI)

(Status register)

no change

(Control register 3)

(Control register 1)

AVCC

VSOUT

DVCC

VS2

VS1

OUT

and

≥ 1

ATA5428-PLSW Datasheet(PDF) 30 Page - ATMEL Corporation

ATA5428-PLSW Datasheet(HTML) 30 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Datasheet Download

Link URL