AS3715 datasheet(50/159 Pages) AMSOSRAM

50 / 159 page

ams Datasheet

Page 49

[v1-03] 2015-Aug-10

Document Feedback

AS3715 − Detailed Description – Power Management Functions

Charger JEITA Temp Supervision

The more complex JEITA temperature supervision is monitoring

T1 (0°C), T2 (10°C), T3 (45°C) and T4 (60°C) and adjusting

charging current and voltage to it.

Figure 49:

JEITA Temp Supervision

JEITA Temp Supervision Diagram: Shows the voltage and current settings for the JEITA temperature

supervision.

Dual Battery Switching

The charger is only charging the battery connected to

CHGOUT/VIBAT, but can handle two batteries and controls the

external battery switches accordingly. When moving to

power_off mode only the internal battery switch is kept closed.

T1upper

TEMPERATURE [°C]

CHARGE

CURRENT

CHARGE

VOLTAGE

0.5C

Typical Charge Voltage: Veoc(typ)

3.5V < Veoc(warm) < 4.34V

750mA < Icc_normal(typ) < 1500mA

60mA < Itrickle(typ) < 240mA

COLD

TYPICAL

HOT

Charger

is OFF

Charger

is OFF

350mA < Icc_low(typ) < 750mA

T1lower

T4upper

T4lower

350mA < Icc_low(cool) < 750mA

60mA < Itrickle(cool) < 120mA

COOL

T2upper

T2lower

Maximum Charging Current 1C

WARM

T3upper

T3lower

Veoc(warm)=Veoc(typ)-100mV

3.5V < Veoc(typ) < 4.44V

350mA < Icc_normal(cool) < 750mA

AS3715 Datasheet(PDF) 50 Page - ams-OSRAM AG

AS3715 Datasheet(HTML) 50 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