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参数资料
| 型号： | MAX1501ZETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/16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
Table 2. Battery Regulation Voltage
The thermal-regulation loop limits the MAX1501 die
temperature to the value selected by the TEMP input by
CHARGING MODE
Li+
NiMH/NiCd
GND
4.1V
4.5V
SELV
VL
4.2V
4.95V
reducing the charge current as necessary (see the
Thermal-Regulation Selection section). This feature not
only protects the MAX1501 from overheating, but also
allows the charge current to be set higher without
risking damage to the system.
Li+ Charge Mode
Connect CHGEN and MODE to GND to place the
MAX1501 in Li+ charging mode. The Li+ charger con-
sists of a voltage-control loop, a current-control loop,
and a thermal-control loop. Connect SELV to GND to
set the Li+ battery voltage to 4.1V. Connect SELV to VL
to set the Li+ battery voltage to 4.2V (Table 2).
The MAX1501 precharges the Li+ battery with 10% of
the user-programmed fast-charge current at the start of
a charge cycle. A soft-start algorithm ramps up the
charging current (10% steps with 20ms duration per
step) to the fast-charge current when the battery volt-
age reaches 2.8V. The MAX1501 enters constant-volt-
age mode and decreases the charge current when the
BATT voltage reaches the selected regulation voltage
(4.1V or 4.2V). Set the fast-charge current with a resis-
tor between SETI and GND (see the Charge-Current
Selection section).
Set the top-off-current threshold with the three-state
FULLI input (see the Top-Off-Current Selection section).
RLED goes high impedance and GLED asserts low when
the top-off-current threshold is reached. The MAX1501
automatically initiates recharging when the battery volt-
age drops below 95% of the voltage set by SELV. (The
MAX1501Z does not time out.)
NiMH/NiCd Charge Mode
Connect CHGEN to GND and MODE to VL to place the
MAX1501 in NiMH/NiCd charging mode. The NiMH/NiCd
battery charger consists of a current-control loop, a volt-
age-control loop, and a thermal-control loop. Connect
SELV to GND to set the regulation voltage to 4.5V.
Connect SELV to VL to set the regulation voltage to
4.95V (Table 2). When charging three NiMH/NiCd cells
to 4.95V, V IN must be at least 5.25V and a μP must be
used to terminate the charge sequence.
REGULATION VOLTAGE
PREQUALIFICATION
FAST CHARGING
TOP-OFF
DONE
FAST-CHARGE CURRENT
BATTERY
CURRENT
RLED TURNS OFF AND GLED
TURNS ON WHEN CHARGE CURRENT
DROPS TO VALUE SET BY FULLI
(10%, 20%, OR 30% OF FAST-
CHARGE CURRENT).
BATTERY
VOLTAGE
MINIMUM CHARGE VOLTAGE
(2.8V)
CHARGE
TERMINATED
MAX1501Z
10% OF FAST-CHARGE CURRENT
t PREQUAL
t MAX
MAX1501
Figure 4. Li+ Charge Sequence
______________________________________________________________________________________
11
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相关代理商/技术参数 |
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| 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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