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参数资料
| 型号： | MAX8939EWV+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/45页 |
| 文件大小： | 0K |
| 描述： | IC PWR MGMT HANDSETS 30WLP |
| 标准包装： | 2,500 |
| 应用： | 充电泵，无线设备 |
| 输入电压： | 2.9 V ~ 5.5 V |
| 输出数： | 7 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
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MAX8939/MAX8939A/MAX8939B
System Power Management
for Mobile Handset
ELECTRICAL CHARACTERISTICS (Note 3) (continued)
(V BATT = 3.7V, V CHG_IN = 5.0V, circuit of Figure 1, T A = -40 N C to +85 N C, unless otherwise noted. Typical values are at T A = +25 N C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OUT2 WLED STEP-UP CONVERTE R
Input Supply Voltage
2.9
5.5
V
Input Supply Current
OUT2 Leakage Current
2MHz, no load
T A = +25 N C, V OUT2 = 5.5V, shutdown
T A = +85 N C, V OUT2 = 5.5V, shutdown
2
0.01
0.1
2.5
1
5
mA
F A
LED1, LED2
Current Regulator Dropout Voltage
(Note 6)
LED_ Regulation Voltage
25.25mA setting
350
200
mV
mV
LED_ Current Accuracy
Leakage Current
T A = +25 N C, I L ED_ = 25.25mA
T A = -40 N C to +85 N C , I LED_ = 25.25mA
T A = +25 N C, in shutdown
T A = +85 N C, in shutdown
-3
-5
0.01
0.1
+3
+5
1
5
%
F A
LX2
nFET Current Limit
710
860
mA
nFET On-Resistance
LX2 Leakage Current
Operating Frequency
Maximum Duty Cycle
I LX2 = 200mA
T A = +25 N C, 5.5V, s hutdown
T A = +85 N C, 5.5V, s hutdown
V LED1 or V LED 2 = 0.2V
1.8
0.3
0.01
0.1
2
90
0.7
1
5
2.2
I
F A
MHz
%
COMP2
Transconductance
Soft-Start Charge Current
Discharge Pulldown
PROTECTION
20
60
20
F s
F A
k I
Overvoltage Threshold
Overvoltage Hysteresis
Open LED Detection
Shorted LED Detection
V OUT2 rising
28
V OUT2
- 2.2V
4
100
V OUT2
- 0.7V
30
120
V
V
mV
V
Note 3: Limits are 100% production tested at T A = +25 N C, unless otherwise noted. Min/max limits over the operating temperatures
range and relevant supply voltage range are guaranteed by design and characterization. Typical values are not guaranteed.
Note 4: The monitoring voltage is proportional to the charging current with a ratio depending on the programmed fast-charge cur-
rent. For the current equal to the fast-charge current, the monitoring voltage is typically 1.2V.
Note 5: The maximum CHG_IN current is the typical value plus 10% for currents up 700mA and the typical value plus 15% for
higher currents.
Note 6: LED dropout voltage is defined as the LED_ to ground voltage when current into LED_ drops 10% from the value at
VLED_= 0.5V.
8
Maxim Integrated
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| MAX8939QEWV+T | 制造商:Maxim Integrated Products 功能描述:SYSTEM POWER - Tape and Reel |
| MAX893LESA | 功能描述:电源开关 IC - USB 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX893LESA+ | 功能描述:电源开关 IC - USB 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX893LESA+T | 功能描述:电源开关 IC - USB 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX893LESA-T | 功能描述:电源开关 IC - USB 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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