SC900841JVKR2 Freescale Semiconductor, SC900841JVKR2 Datasheet - Page 62

• Manufacturer Part Number: SC900841JVKR2
• Description: IC POWER MGT 338-MAPBGA
• Manufacturer: Freescale Semiconductor

Specifications of SC900841JVKR2

• Applications: PC's, PDA's
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 338-TBGA
• Input Voltage: 2.8 V to 4.4 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

62
900841
FUNCTIONAL DEVICE OPERATION
POWER STATES AND CONTROL
V
V
V
V
* RTC is powered
* Time of Day is kept
* Keep alive registers are powered
* M
* All other circuits OFF
RAWCHG
RAWCHGDET
BAT
COIN
V
V
V
CHG
RAWCHG
BAT
COIN
< V
> V
V
{V
V
V
* RAWCHG OVP monitor ON
& M
< V
PWR
BAT
COIN
TRICKLE
< V
RAWCHG
* M
<
COINOFF
RTC STATE
* Other circuits all OFF
BATOFF
RAWCHG PWR
OVPCHG
> V
< V
CHGBYP
&
< V
COINOFF
> V
BATOFF
RAWCHGDET
&
PWRUVF
COINOFF
> V
& M
&
OFF
VPWR RAMP UP
ACTIVE STATE
RAWCHGDET
REVPCHG
* Internal supplies/references ON
* Logic is reset
* Initial power sequence
performed
* SPI ready
* SCU interrupted
V
V
* SCU takes control
* SCU sets the system
* Charging is not possible
* OTG operation is possible
OR
RAWCHG
BAT
* M
* M
}
&
Increased System Draw
(BAT Operation)
SCU CONTROL
* M
* M
BAT Operation
* M
* Buck Charger OFF
* Buck Charger OFF
&
> V
OVPCHG
OVPCHG
ON
RDSTATE = 0x00
* V
BATDET INT= 1
CHG
CHG
CHG
* V
* V
LOWBAT
* V
< V
PWR
OR
PWR
PWR
& M
PWR
& M
& M
& M
& M
RAWCHGDET
> V
= V
= V
CHGBYP
CHGBYP
= V
CHGBYP
V
REVPCHG
REVPCHG
PWRUVR
RAWCHG
V
BAT
BAT
BAT
BAT
V
V
V
V
PVINVHG
&
ON
ON
ON
> V
RAWCHG
BAT
COIN
OFF
OFF
> V
V
BATOFF
PWR
< V
> V
V
RAWCHGDET
= V
BAT
LOWBAT
V
V
V
V
V
V
> V
< V
COINOFF
V
V
V
RAWCHG
RAWCHGDET
BAT
RAWCHG
RAWCHGDET
BAT
V
V
V
V
V
RAWCHG
> V
RAWCHG
RAWCHGDET
BAT
RAWCHG
RAWCHGDET
BAT
RAWCHG
RAWCHGDET
BAT
RAWCHGDET
Figure 18. 900841 Power States
YES
> V
< V
LOWBAT
V
V
> V
> V
&
– 100mV
RAWCHG
BAT
TRICKLE
TRICKLE
>
>
LOWBAT
LOWBAT
<
<
>
> V
&
&
&
&
&
TRICKLE
> V
V
* Internal supplies/references ON
* Logic is reset
* Initial power sequence performed
* SPI ready
* SCU interrupted
* SCU negotiates Input Power and sets input current limit
* PMIC regulates current draw below the maximum value set by SCU
* SCU takes control
* SCU sets the system
* Charging is possible (refer to Charger State Machine)
* OTG operation Is not possible
BAT+USB Operation
RAWCHG
RAWCHGDET
Is V
* V
V
* M
V
* M
COIN
NO PWR
V
BAT
* V
PWR
* Buck Charger ON
OVPCHG
PWR
PWR
USBDET INT = 1
* V
BATDET INT= 1
CHG
PWR
(USB Operation OR BAT + USB Operation)
< V
< V
< V
=V
PWR
< V
to V
& M
&
BAT
RAWCHGDET
BATOFF
COINOFF
= V
& M
BAT
> V
+0.3V (BAT+USB Operation, V
BAT
CHGBYP
BAT
REVPCHG
* V
- 100mV ?
PWRUVR
Check
+ 0.3V
PWR
* MOVPCHG & MREVPCHG ON
OFF
= 4.2V (USB Operation, V
* MCHG & MCHGBYP OFF
ON
SCU CONTROL
* Buck Charger ON
NO
V
V
BAT
BAT
V
V
V
RAWCHG
RAWCHGDET
BAT
< V
> V
> V
TRICKLE
TRICKLE
LOWBAT
<
Analog Integrated Circuit Device Data
BAT
&
* Internal supplies/references ON
* Logic is reset
* Initial power sequence
performed
* SPI ready
* SCU interrupted
* M
> V
BAT
* M
USB Operation
* Buck Charger ON
V
V
OVPCHG
trkl,
* V
< V
RAWCHG
BAT
CHG
V
V
V
* V
RDSTATE = 0x03)
RAWCHG
BAT
COIN
PWR
trkl
< V
& M
PWR
V
V
V
)
& M
< V
RAWCHG
BAT
COIN
> V
< V
TRICKLE
> V
Freescale Semiconductor
CHGBYP
= 4.2V
BATOFF
REVPCHG
< V
< V
PWRUVR
COINOFF
< V
RAWCHGDET
BATOFF
RAWCHGDET
< V
COINOFF
OFF
&
RAWCHGDET
ON
&
&
&
&