参数资料
| 型号： | NCP1835BMNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI-ION 10-DFN |
| 产品变化通告： | Product Discontinuation 30/Sept/2011 |
| 标准包装： | 3,000 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.8 V ~ 6.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
NCP1835B
Charge Status Indicator (CFLG)
CFLG is an open?drain output that indicates battery
charging or End?of?Charge (EOC) status. It is pulled low
when charging in constant current mode and constant
voltage mode. It will be forced to a high impedance state
when the charge current drops to I EOC . When the charger
is in shutdown mode, CFLG will also stay in the high
impedance state.
Fault Indicator (FAULT)
FAULT is an open?drain output that indicates that a
charge fault has occurred. It has two states: low or high
impedance. In a normal charge cycle, it stays in a high
impedance state. At fault conditions, it will be pulled low
and terminate the charge cycle. A timeout fault occurs
when the full charge or pre?charge timeouts are violated,
or if the voltage on ISEL is greater than 1.4 V or lower than
0.35 V. There are two ways to get the charger out of a fault
condition and back to a normal charge cycle. One can either
toggle the EN pin from GND to a floating state or reset the
input power supply.
Adapter Present Indicator (V2P8)
V2P8 is an input power supply presence indicator. When
the input voltage, V CC , is above the power on threshold
(V RISE , nominally 3.4 V) and is also 100 mV above the
battery voltage, it provides a 2.8 V reference voltage that
can source up to 2.0 mA. This voltage can also be used to
power a microprocessor I/O.
Enable/Disable (EN)
Pulling the EN pin to GND disables the NCP1835B. In
shutdown mode, the internal reference, oscillator, and
control circuits are all turned off. This reduces the battery
drain current to less than 3.0 m A and the input supply
current to 30 m A. Floating the EN pin enables the charger.
Thermal Foldback
An internal thermal foldback loop reduces the
programmed charge current proportionally if the die
temperature rises above the preset thermal limit (nominally
100 ° C). This feature provides the charger protection from
over heating or thermal damage. Figure 16 shows the full
charge current reduction due to die temperature increase
across the thermal foldback limit. For a charger with a
1.0 A constant charge current, the charge current starts
decreasing when the die temperature hits 100 ° C and is
reduced to zero when the die temperature rises to 110 ° C.
I FCHG
X ?100 mA/C
100 ° C
T J , JUNCTION TEMPERATURE
Figure 16. Full Charge Current vs. Junction
Temperature
http://onsemi.com
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| NCP1835MN20R2 | 功能描述:电池管理 1A Max Single Cell 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 |
| NCP1835MN20R2G | 功能描述:电池管理 1A Max Single Cell Lithium-Ion Charger 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 |
| NCP1835MN24R2 | 功能描述:电池管理 1A Max Single Cell 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 |
| NCP1835MN24R2G | 功能描述:电池管理 1A Max Single Cell Lithium-Ion Charger 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 |
| NCP1835MN24T2 | 功能描述:电池管理 1A Max Single Cell 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 |
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