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| 型号： | MAX8819CETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/29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
L = 4.7μH,
MAX8819A/MAX8819B
300
Maximum Output Current
R LSR = 0.13 Ω
mA
(Note 6)
MAX8819C
500
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
FB3 Voltage
Output Voltage Range
(Note 7)
0.997
1
1.01
1.028
V SYS
V
V
FB3 Leakage Current
V FB3 = 1.01V
T A = +25 ° C
T A = +85 ° C
-50
-5
-50
+50
nA
Load Regulation
Line Regulation
I OUT3 = 100mA to 300mA
(Note 9)
1.3
1
%
%/D
p-Channel Current-Limit
Threshold
Skip-Mode Transition Current
MAX8819A/MAX8819B
MAX8819C
(Note 8)
0.512
0.565
0.550
0.600
80
0.595
0.700
A
mA
n-Channel Zero-Crossing
Threshold
10
mA
p-Channel On-Resistance
n-Channel On-Resistance
Maximum Duty Cycle
Minimum Duty Cycle
V PV13 = 4.0V, I LX3 = 180mA
V PV13 = 4.0V, I LX3 = 180mA
100
290
120
12.5
m Ω
m Ω
%
%
PWM Frequency
Internal Discharge Resistance in
Shutdown
f OSC
EN123 = low, resistance from LX3 to PG3
1.8
2.0
1.0
2.2
MHz
k Ω
REG4–STEP-UP CONVERTER
Input Voltage
Output Voltage Range
V OUT4
Power supplied from SYS (see Figure 1)
2.4
V SYS
5.5
24
V
V
FB4 Regulation Voltage
FB4 Leakage
Switching Frequency
V FB4
No dimming
REG4 disabled (EN4 = low)
475
-0.050
0.9
500
+0.005
1
525
+0.050
1.1
mV
μA
MHz
Minimum Duty Cycle
5
%
Maximum Duty Cycle
90
94
%
OVP4 Overvoltage Detection
OVP4 Input Current
V OVP
OVP4 = SYS, EN4 = high
24
25
4
26
V
μA
OVP4 Leakage Current
n-Channel On-Resistance
n-Channel Off-Leakage Current
n-Channel Current Limit
REG4 disabled (EN4 = low),
OVP4 = SYS
V SYS = 4.0V, I LX4 = 200mA
V LX4 = 28V
-1
-1
555
+0.001
395
+0.001
695
+1
+1
950
μA
m Ω
μA
mA
6
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