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参数资料
| 型号： | MAX8819CETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/29页 |
| 文件大小： | 0K |
| 描述： | IC PMIC W/INT CHARGER 28TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 手持/移动设备 |
| 电源电压： | 4.1 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
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PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
ELECTRICAL CHARACTERISTICS (continued)
(DC, LX_ unconnected; V EP = V GND = 0V, V BAT = 4V, DLIM[1:2] = 00, EN123 = EN4 = low, V FB1 = V FB2 = V FB3 = 1.1V, V FB4 = 0.6V,
PV13 = PV2 = SYS, T A = -40°C to +85°C, capacitors as shown in Figure 1, R CISET = 3k Ω , unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Slew rate
333
mA/ms
Charger Soft-Start Time
t SS_CHG
Time from 0 to 500mA
Time from 0 to 100mA
1.5
0.3
ms
Time from 100mA to 500mA
1.2
Timer Accuracy
CISET voltage when the fast-charge timer
+15
%
Timer Suspend Threshold
suspends; 300mV translates to 20% of the
250
300
350
mV
maximum fast-charge current limit
CISET voltage when the fast-charge timer
Timer Extend Threshold
extends; 750mV translates to 50% of the
700
750
800
mV
maximum fast-charge current limit
Prequalification Time
Fast-Charge Time
Top-Off Time
t PREQUAL
t FSTCHG
t TOPOFF
33
660
33
min
min
min
POWER SEQUENCING (Figures 6 and 7)
REG1, REG2, REG3 Soft-Start
Time
t SS1 , t SS2 ,
t SS3
2.6
ms
REG4 Soft-Start Time
t SS4
C COMP4 = 0.022μF to GND
5
ms
REGULATOR THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T J rising
+165
15
° C
° C
REG1–SYNCHRONOUS STEP-DOWN CONVERTER
Input Voltage
PV13 supplied from SYS
V SYS
V
Maximum Output Current
L = 4.7μH,
R LSR = 0.13 Ω
(Note 6)
MAX8819A/MAX8819B
MAX8819C
400
550
mA
Short-Circuit Current
Short-Circuit Detection Threshold
Short-Circuit Foldback Frequency
L = 4.7μH, R LSR = 0.13 Ω
600
230
f OSC /3
mA
mV
Hz
FB1 Voltage
Output Voltage Range
(Note 7)
0.997
1
1.01
1.028
V SYS
V
V
FB1 Leakage Current
V FB1 = 1.01V
T A = +25 ° C
T A = +85 ° C
-50
-5
-10
+50
nA
Load Regulation
Line Regulation
p-Channel On-Resistance
n-Channel On-Resistance
I OUT1 = 100mA to 300mA
(Note 9)
V PV13 = 4.0V, I LX1 = 180mA
V PV13 = 4.0V, I LX1 = 180mA
1
1
190
250
%
%/D
m Ω
m Ω
p-Channel Current-Limit
Threshold
MAX8819A/MAX8819B
MAX8819C
0.565
0.615
0.600
0.650
0.640
0.750
A
4
_______________________________________________________________________________________
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