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| 型号： | MAX8663ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 24/34页 |
| 文件大小： | 0K |
| 描述： | IC PMIC LI+ SNGL CELL 40TQFN |
| 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 |
| 电流 - 电源： | 900µA |
| 电源电压： | 4.1 V ~ 8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
DC Input Current-Limit Selection
(PEN1/PEN2)
The input current limit can be set to a variety of values
as shown in Table 1. When the PEN1 input is low, a
USB source is expected at DC and the current limit is
set to either 95mA or 475mA by PEN2.
When PEN1 is high, an AC adapter is expected at DC
and the current limit is set based on a programming resis-
tor at PSET. The DC input current limit is calculated from:
I DC_LIM = 2000 x (1.5 / R PSET )
An exception is when the battery charger is disabled
( CEN high) with PEN2 low, where the MAX8662/
MAX8663 enter USB suspend mode.
Power-OK Output ( POK )
POK is an active-low open-drain output indicating DC
status. When the voltage at DC is between the under-
voltage and the overvoltage thresholds, and is greater
than the BAT voltage, POK pulls low to indicate that
input power is OK. Otherwise, POK is high impedance.
POK is not affected by the states of PEN1, PEN2, or
CEN . POK remains active in thermal overload.
Battery Charger
The battery charger state diagram is illustrated in
Figure 4.
With a valid AC adapter/USB voltage present, the bat-
tery charger initiates a charge cycle when the charger
Table 1. DC Input Current and Charger Current-Limit Select
CEN
0
0
0
1
1
1
PEN1
0
0
1
X*
0
1
PEN2
0
1
X*
0
1
1
DC INPUT CURRENT LIMIT
95mA
475mA
2000(1.5V / R PSET )
Off
475mA
2000(1.5V / R PSET )
EXPECTED INPUT TYPE
100mA USB
500mA USB
AC adapter
USB suspend
500mA USB
AC adapter
CHARGER CURRENT LIMIT**
1556(1.5V / R ISET )
1556(1.5V / R ISET )
1556(1.5V / R ISET )
Off
Off
Off
*X = Don’t care.
**The maximum charge will not exceed the DC Input current.
CEN = 1 OR REMOVE AND
RECONNECT AC
CHARGER OFF
CHG = HIGH-Z
ADAPTER/USB
ANY STATE
I BAT = 0mA
TOGGLE CEN OR
CEN = 0
SET TIMER = 0
REMOVE AND
RECONNECT AC
PREQUALIFICATION
CHG = 0V
I BAT = I CHG-MAX / 10
TIMER > t PREQUAL
ADAPTER/USB
V BAT > 3V
SET TIMER = 0
V BAT < 2.82V
SET TIMER = 0
TIMER > t FST-CHG
FAST CHARGE
CHG = 0V
I BAT = I CHG-MAX
(TIMER SUSPENDED IF I BAT < I CHG-MAX x
20% WHILE V BAT < 4.2V)
FAULT
POK = 0V
CHG = BLINK AT 1Hz
I BAT = 0mA
ANY CHARGING STATE
I BAT < I CHG-MAX x 7.5%
AND V BAT = 4.2V
SET TIMER = 0
I BAT > I CHG-MAX x 12%
SET TIMER = 0
THERMISTOR
TOO HOT OR TOO COLD
TIMER = SUSPENDED
THERMISTOR
TEMPERATURE OK
TIMER = RESUMED
TOP - OFF
CHG = HIGH - Z
V BAT = < 4.1V
SET TIMER = 0
TEMPERATURE
SUSPEND
I BAT = 0mA
TIMER > t TOP-OFF
CHG = PREVIOUS STATE
DONE
CHG = HIGH-Z
I BAT = 0mA
Figure 4. Charger State Diagram
24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8663EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX8663 EVAL KIT - Boxed Product (Development Kits) |
| MAX8664AEEP+ | 功能描述:DC/DC 开关控制器 Dual-Output Step Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8664AEEP+T | 功能描述:DC/DC 开关控制器 Dual-Output Step Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8664BEEP+ | 功能描述:DC/DC 开关控制器 Dual-Output Step Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8664BEEP+T | 功能描述:DC/DC 开关控制器 Dual-Output Step Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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