AS3658F-BCTP datasheet(56/158 Pages) AMSCO

56 / 158 page

www.austriamicrosystems.com

Revision 1v13

55 - 157

AS3658

Data Sheet Confidential - Detail ed Descri ption-Power Management Functions

ISTARTmax

Maximum load current

during startup on

Vsupply

5mA

VUVLO

Undervoltage lockout

threshold

–3%

2.7…

3.4

+3%

Value is set by ResVoltRise in the Battery

Voltage Monitor register

VCHOFF

Charge termination

threshold

–0.06

3.90…

4.25

+0.06

Li+ battery; value is set by ChVoltEOC in

the Charger Config register

VCHRES

Charger resume

voltage

3.85…

4.20

Value is set by ChVoltResume in the

Charger Config register. Do not set

VCHRES higher than VCHOFF!

Vcurr_preset

Charger constant

current pre-set voltage

VRESRI

100mV

VEOC

Charger EOC voltage

3.60

If isolate_bat=0; to prevent a system reset

if the battery is removed in EOC operation

Table 46. Charger status Bit definitions

Addr:99

Charger status

These bits show the status of the charger

Bit

Bit Name

Default

Access

Description

0ChDet

Bit is set when external charge adapter has been

detected on pin VCHARGER

1ChAct

Bit is set when step down charger is operating

(independent of Reg. bit no_charging)

2Resume

Bit is set when battery voltage has dropped below resume

level

Trickle

Bit is set when charger is in trickle charge mode

4CVM

Bit is set when charger is in top-off charge mode

(constant voltage mode)

5EOC

Bit is set when charging has been terminated. Bit is

cleared automatically when ChEn is cleared, no_charging

is set or charging is resumed.

6NoBat

Bit is set when battery detection circuit indicates that no

battery is connected to the system. Detection is started

after EOC and if bit autoresume=1 only. Bit is cleared

automatically when a battery is connected, when DisBDet

is set and/or when ChEn is cleared.

ChLinear

Bit is set, if Linear charger is detected, and chDet=1. This

state is latched on the rising edge of chDet. Detected if

VOFF_B is connected to ground

Table 45. Charger Characteristics VVBAT=3.0…5.5V; Tamb=–20…+85°C; unless otherwise specified

Symbol

Parameter

Min

Typ

Min

Unit

Note

AS3658F-BCTP датащи(PDF) 56 Page - ams AG

AS3658F-BCTP датащи(HTML) 56 Page - ams AG

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 ...More

датащи скачать

ссылки URL