參數(shù)資料
型號(hào)： P95020ZLLGI
廠(chǎng)商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類(lèi)： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124
封裝： LLGA-124
文件頁(yè)數(shù)： 87/137頁(yè)
文件大?。?/td> 3533K
代理商： P95020ZLLGI
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P95020 / Preliminary Datasheet
Revision 0.7.10
53
2010 Integrated Device Technology, Inc.
A switching Pre-Regulator to regulate/power the system power (VSYS) when adapter input is present
A low-headroom Linear Charger which charges the Li-Ion/Li-Poly battery when adapter input is present and the battery is
not fully charged, and optionally discharges the battery for safety when the battery temperature is too high and the
battery is fully charged.
A Die-Temperature Sensor which monitors the die temperature so hardware autonomous actions can be taken to lower
the charging current when the die-temperature is too high;
A Battery Temperature Monitor which monitors the battery pack temperature through the NTC pin, charging is paused
when the battery
s temperature is out of range (higher than 40°C or lower than 0°C);
A precision Bandgap for a reference for the charging voltage control;
A Battery Voltage Monitor which monitors the VBAT level solely for the charger (not for system level monitoring);
A Power-On Reset circuit which generates a reset for the system when VSYS is first powered on.
A Configuration Register Block with Register Access Interface, which allows system to access registers implemented
in this module.
3.3
CHARGER
– DC ELECTRICAL CHARACTERISTICS
3.3.1
CHARGER - Buck Regulator Electrical Characteristics
Unless otherwise specified, typical values at TA =25C, VBUS = 5V, TA = -40°C to +85°C, COUT=10F, L=2.2H, CIN=1F, CHRG_BAT=3.8V, RICHRG=1K,
RCLSEN=600
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
VBUS
Input Supply Voltage
4.35
5.5
V
IBUSLIM
Input Current Limit
1x
5x
10x
15x
20x
90
440
950
1425
1900
95
470
1000
1500
2000
100
500
1050
1575
2100
mA
IVBUSQ
VBUS Quiescent Current
1x
5x
10x
15x
20x
9
15
mA
RCLSEN
Ratio of Measured VBUS Program Current
1x
5x
10x
15x
20x
250
1000
mA /
mA
VCLSEN
CLSEN Detect Voltage In Current Limit
1x
5x
10x
15x
20x
0.239
1.195
0.598
0.837
1.195
V
VBUS_UVLO
VBUS Under Voltage Lockout
Rising edge
3.95
V
Hysteresis
200
mV
VSYS
System Output Voltage (During Charging)
1X,5X,10X,15X,20X Modes,
0 V < VBAT <4.2 V
IOUT = 0 mA
3.6
VBAT+0.3
4.5
V
FOSC
Switching Frequency
1.7
2
2.3
MHz
RHS
High Side Switch On Resistance
0.18
RLS
Low Side Switch On Resistance
0.30
IPEAKLIM
Peak Switch Current Limit
1x, 5x modes
10x, 15x, 20x modes
1
4
DMAX
PWM Max Duty Cycle
100
%
tSOFTSTART
Soft Start Rise Time
1
ms
ILEAKSW
Leakage Current Into SW pin
VBUS=0V, VSW=4.5V
1
A
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