參數(shù)資料
型號： P95020ZNQGI
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝： QFN-132
文件頁數(shù)： 92/137頁
文件大小： 3533K
代理商： P95020ZNQGI
P95020 / Preliminary Datasheet
Revision 0.7.10
58
2010 Integrated Device Technology, Inc.
3.5.7
CHARGER - Status 2 Register
IC Address = Page-0: 150(0x96), C Address = 0xA096
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
ANTISW_DISCH
N/A
R
1 = Discharging
0 = Not Discharging
Anti-Swell Discharge Status
1
NTC_INVALID
N/A
R
1 = NTC disabled
0 = NTC enabled
NTC function disabled by NTC short to GND
[3:2]
RESERVED
00b
R
RESERVED
4
IN_CHRG
N/A
R
1 = Charging
0 = Not Charging
In Process of Charging
5
CHRG_DONE
N/A
R
1 = Charge
Complete
0 = Charge Not
Complete
Charge Complete
6
VSYS_LT36
N/A
R
1 = VSYS < 3.6V
0 = VSYS ≥ 3.6V
VSYS < 3.6 V
7
TEMP_HI
N/A
R
1 = Temp > 120°C
0 = Temp
≤ 120°C
1: Charger thermal sensor detected Temperature > 120°C
3.5.8
CHARGER - Interrupt Status Register
IC Address = Page-0: 151(0x97), C Address = 0xA097
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
ADAPTER_INT
0b
RW1C
1 = IN_STAT Changed
0 = IN_STAT Not Changed
Adapter Input Status Changed
1
CUR_LIM_INT
0b
RW1C
1 = CL_STATUS Changed
0 = CL_STATUS Not Changed
Current Limit Status Changed
2
CHRG_DONE_INT
0b
RW1C
1 = Charge Done status low to high
0 = Charge Done status not change
Set when rising edge of CHRG_DONE status detected
[7:3]
RESERVED
00000b
RW
3.5.9
CHARGER - Interrupt Enable Register
IC Address = Page-0: 152(0x98), C Address = 0xA098
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
ADAPTER_INT_EN
1b
RW
1 = Interrupt
Enabled
0 = Interrupt Not
Enabled
Adapter Input Interrupt Enable
1
CUR_LIM_INT_EN
0b
RW
1 = Interrupt
Enabled
0 = Interrupt Not
Enabled
Current Limit Interrupt Enable
2
CHRG_DONE_INT_
EN
0b
RW
1 = Interrupt
Enabled
0 = Interrupt Not
Enabled
Charging DONE Interrupt Enable
[7:3]
RESERVED
00000b
RW
3.5.10
CHARGER - RESERVED Registers:
Do not write to these registers. They are all RESERVED registers.
IC Address = Page-0: 153(0x99), C Address = 0xA099
Thru = Page-0: 159(0x9F), C Address = 0xA09F
3.6
CHARGER - PRE-REGULATOR
The Pre-Regulator is a buck converter which can provide currents up to 2A. It monitors the external input voltage and,
when this voltage is high enough, it regulates VSYS to 3.6V or (VBAT+0.3V) whichever is greater. The regulator will stop
running if the input voltage is too low (UVLO).
This block will generate a status of whether the adapter input (VBUS) is ready/powered so system will be aware of the
power source of the whole system, and can adjust the operating parameters accordingly.
The average input current is monitored and limited by the current limit settings. A resistor (600 from CLSEN to ground
determines the upper limit of the current drwan from the VBUS pin. A fraction of the VBUS current is send to the CLSEN pin
when the synchronous switch of the Pre-Regulator is on. Several VBUS current limit settings are available via input pin or
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