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参数资料
| 型号： | MAX1501ZETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/16页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS |
| 标准包装： | 60 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 4.5 V ~ 13 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 托盘 |
Highly Integrated, Linear Battery Charger with
Thermal Regulation for Portable Applications
Thermal-Regulation Selection
Set the regulated die temperature of the MAX1501 with
the TEMP three-level logic input. The MAX1501
reduces the charge current to limit the die temperature
to the value set by TEMP. The MAX1501 operates nor-
mally while the thermal loop is active. An active thermal
loop does not indicate a fault condition. TEMP allows
the MAX1501 to maximize the charge current while pro-
viding protection against excessive power dissipation.
Connect TEMP to GND to regulate the die temperature
at +95 ° C. Leave TEMP floating to regulate the die tem-
perature at +115 ° C. Connect TEMP to VL to regulate
the die temperature at +135 ° C.
Top-Off-Current Selection
Set the top-off-current threshold in the Li+ and
NiMH/NiCd charge modes with the FULLI three-level
logic input. The top-off-current threshold determines
when RLED turns off and GLED turns on, indicating the
charge status of the battery.
Connect FULLI to GND to set the top-off-current thresh-
old to 10% of the fast-charge current. Connect FULLI to
VL to set the top-off-current threshold to 20% of the
fast-charge current. Leave FULLI floating to set the top-
off-current threshold to 30% of the fast-charge current.
Charge-Timer Selection (MAX1501 Only)
Set the maximum charging time with the TMAX three-
level logic input. TMAX limits the duration of charging to
protect the battery from overcharging. Connect TMAX
to GND to set the maximum charging time to 3 hours.
Leave TMAX floating to set the maximum charging time
to 4.5 hours. Connect TMAX to VL to set the maximum
charging time to 6 hours.
Capacitor Selection
Connect a ceramic capacitor from BATT to GND for
proper stability. Use a 10μF X5R ceramic capacitor for
most applications.
Connect IN and INP together and bypass to GND with
a 1μF ceramic capacitor. Use a larger input bypass
capacitor for high input voltages or high charging cur-
rents to reduce supply noise.
Thermal Considerations
The MAX1501 is available in a thermally enhanced thin
QFN package with exposed paddle. Connect the
exposed paddle of the MAX1501 to a large copper
ground plane to provide a thermal contact between the
device and the circuit board. The exposed paddle
transfers heat away from the device, allowing the
MAX1501 to charge the battery with maximum current,
while minimizing the increase in die temperature.
Application Circuits
Figure 5 shows the MAX1501 as a stand-alone Li+ bat-
tery charger. The 2.8k ? resistor connected to SETI sets
a charging current of 500mA.
Figure 6 shows the MAX1501 as a μP-based Li+ battery
charger. Drive CHGEN low to charge the battery. Drive
CHGEN high to disable the charger. Connect a 100k ?
pullup resistor from ACOK to the logic supply voltage of
the μP to detect the presence of an input supply. The
logic supply voltage must be less than 5.5V.
AC
ADAPTER
1 μ F
4.5V TO 6.5V
IN
INP
BATT
4.2V 1-CELL Li+
10 μ F
AC
ADAPTER
1 μ F
4.5V TO 6.5V
IN
INP
BATT
4.2V 1-CELL Li+
10 μ F
MAX1501/MAX1501Z
MAX1501/MAX1501Z
GLED
MODE
RLED
CHGEN
GLED
TMAX/I.C.
TMAX/I.C.
ACOK
TEMP
VL
SELV
V I/O
μ P
R PULLUP
RLED
ACOK
TEMP
FULLI
VL
FULLI
SETI
CHGEN
SETI
SELV
2.8k ?
GND
GND
2.8k ?
MODE
GND
GND
Figure 5. Stand-Alone Li+ Battery Charger
Figure 6. μP-Based Li+ Battery Charger
______________________________________________________________________________________
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1501ZETE+ | 功能描述:电池管理 Linear Bat Charger w/Thermal Reg RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1501ZETE+T | 功能描述:电池管理 Linear Bat Charger w/Thermal Reg RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1501ZETE-T | 功能描述:电池管理 Linear Bat Charger w/Thermal Reg RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX15020ATP+ | 功能描述:直流/直流开关转换器 2A 40V Step-Down w/Dynamic Output-V RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX15020ATP+T | 功能描述:直流/直流开关转换器 2A 40V Step-Down w/Dynamic Output-V RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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