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参数资料
| 型号： | MAX8939EWV+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/45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
Bump Description (continued)
PIN
C1
C2
C3
C4
C5
C6
D1
D2
D3
D4
D5
D6
E1
E2
E3
E4
E5
E6
NAME
LED3
LED2
CHG
SDA
LDO3
LDO2
SAFE_OUT
OUTVIB
IRQ
PWR_ON
_CMP
LDO4
LDO1
CHG_IN
CHG_MON
INVIB
BATT
AGND
REF
FUNCTION
Indicator LED Connection. Connect LED3 to the cathode of the precharge indicator LED. If a
precharge indicator LED is not used, leave LED3 unconnected.
25mA LED Current Regulator. Connect LED2 to the cathode of the second LED string.
Charger Disable Input. Connect CHG high to disable the charger, or low to enable the charger. Once
the charger is enabled or disabled through I 2 C, the state of CHG is ignored until reset.
Data Input for Serial Interface. High impedance when the I 2 C interface is off.
200mA LDO Output. Connect a 2.2 F F capacitor from LDO3 to ground. In shutdown, LDO3 is pulled
to ground through an internal 100 I .
200mA LDO Output. Connect a 2.2 F F capacitor from LDO2 to ground. In shutdown, LDO2 is pulled
to ground through an internal 100 I .
4.9V Regulated LDO Output with Input Overvoltage Protection. Connect a 1 F F ceramic capacitor
from SAFE_OUT to ground. SAFE_OUT can be used to supply low-voltage-rated USB systems and
the precharge indicator.
Vibrator Driver Output. Connect OUTVIB to the vibrator motor. Connect a 1 F F ceramic capacitor from
OUTVIB to ground.
Interrupt Request Open-Drain Output
Open-Drain Output to Wake Sleeping Baseband. PWR_ON_CMP pulses low while the charger is
connected. See the PWR_ON_CMP section for details.
100mA LDO Output. Connect a 1 F F capacitor from LDO4 to ground. In shutdown, LDO4 is pulled to
ground through an internal 100 I .
400mA LDO Output. Connect a 4.7 F F capacitor from LDO1 to ground. In shutdown, LDO1 is pulled
to ground through an internal 50 I .
Charger Input Supply Voltage. CHG_IN is the power-supply input for the SAFE_OUT linear regulator
and the battery charger. The operating range for the charger input is 4.1V to 10V (MAX8939) or
6.25V (MAX8939A/MAX8939B). CHG_IN is protected up to 28V. When V CHG_IN exceeds 10.6V
(MAX8939) or 6.75 (MAX8939A/MAX8939B), SAFE_OUT and the charger are disabled. Connect a
1 F F or larger ceramic capacitor from CHG_IN to ground.
Charge Current Monitoring Analog Output. CHG_MON outputs a voltage proportional to the charge
current with 1.2V corresponding to the programmed fast-charge current. The CHG_MON output
includes ripple from loads on the battery. If this is not desired, connect a small 0.01 F F to 0.1 F F
capacitor at the input of the ADC to filter the ripple.
Input Supply for the Vibrator Driver. Connect INVIB to BATT. Connect a 1 F F ceramic capacitor from
INVIB to PGND.
Battery Connection and IC Supply Voltage. Connect a 10 F F ceramic capacitor from BATT to ground.
Analog Ground. Connect PGND1, PGND2, and AGND to the PCB ground plane.
Reference Noise Bypass. Connect a 0.1 F F ceramic capacitor from REF to AGND. Do not load. REF is
high impedance when shut down.
Maxim Integrated
15
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相关代理商/技术参数 |
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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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