AS3701 datasheet(27/110 Pages) AMSOSRAM

27 / 110 page

Page 26

ams Datasheet

Document Feedback

[v1-11] 2016-Dec-14

AS3701 − Detailed Description – Power Management Functions

setting of the bit eoc_current [ChargerCurrentControl]). If the

measured charge current is less than or equal to eoc_current,

the charging cycle is terminated and EOC [ChargerStatus1] is set.

Resume

If EOC is reached and the bit AutoResume [ChargerControl] is set,

the charging will immediately start again, if the battery voltage

falls below the specified resume voltage ChVoltResume

[ChargerConfig1]. This voltage can be set either to 3.33% or

5.56% of ChVoltEOC [ChargerVoltageControl].

Figure 31:

Resume Voltage Levels

Figure 32:

Linear Charger States

Charging States: This figure describes the characteristics of the charging current and the battery voltage for each

different charging state.

ChVoltResume

ChVoltEOC

3.82V

3.84V

…

4.20V

…

4.42V

4.44V

3.33%

127mV

128mV

…

140mV

…

147mV

148mV

5.56%

212mV

213mV

…

233mV

…

246mV

247mV

External Charger

at pin VUSB

5.5V max

VCHDET

Battery Voltage

(VBAT)

Charging

Current

Regulator

Voltages

XRES

after enabling the charger

I2C communication possible

t (not to scale)

11mA – 130mA

44mA – 493mA

2.9V

3.3% or

5.6% of

VEOC

Trickle Current

Constant Current Constant Voltage

EOC

Resume

ICHGOFF

3.82V – 4.44V

5% of CC –

50% of CC

AS3701 Datasheet(PDF) 27 Page - ams-OSRAM AG

AS3701 Datasheet(HTML) 27 Page - ams-OSRAM 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

Datasheet Download

Link URL