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| 型号： | LTM8062EV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER TRACK 77-LGA |
| 产品培训模块： | LTM806x Step-Down Micro-Module Battery Charger |
| 设计资源： | DC1621A Design Files |
| 特色产品： | μModule Products |
| 标准包装： | 170 |
| 系列： | µModule® |
| 功能： | 充电管理，太阳能 |
| 电池化学： | 铅酸，LiFePO4，锂离子，锂聚合物 |
| 电源电压： | 4.95 V ~ 32 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 77-BLGA |
| 供应商设备封装： | 77-LGA（15x9） |
| 包装： | 托盘 |
| 配用： | DC1621A-ND - BOARD DEMO LTM8062 |
LTM8062/LTM8062A
PIN FUNCTIONS
A 0.68μF capacitor is often used, which generates a timer
EOC at three hours, and a precondition limit time of 22.5
minutes. If a timer-based termination is not desired, the
timer function can be disabled by connecting the TMR
pin to ground. With the timer function disabled, charging
terminates when the charge current drops below a C/10
rate, approximately 200mA.
V INREG (Pin L6): Input Voltage Regulation Reference. The
maximum charge current is reduced when this pin is below
2.7V. There is a 100k resistor to GND. Connecting a resis-
tor from V IN to this pin sets the minimum operational V IN
voltage. This is typically used to program the peak power
voltage for a solar panel. The LTM8062/LTM8062A servo
BLOCK DIAGRAM
the maximum charge current required to maintain the
programmed operational V IN voltage, through maintain-
ing the voltage on V INREG at or above 2.7V. If the voltage
regulation feature is not used, connect the pin to V IN .
RUN (Pin K6): Precision Threshold Enable Input Pin. The
RUN threshold is 1.25V (rising), with 120mV of input hys-
teresis. When in shutdown mode, all charging functions are
disabled. The precision threshold allows use of the RUN
pin to incorporate UVLO functions. If the RUN pin is pulled
below 0.4V, the IC enters a low current shutdown mode
where the V IN pin current is reduced to 15μA. Typical RUN
pin input bias current is 10nA. If the shutdown function is
not desired, connect the pin to the V IN pin.
V INA
0.1μF
0.1μF
V IN
8.2μH
SENSE
RESISTOR
BAT
10μF (LTM8062)
2.2μF (LTM8062A)
BIAS
V INREG
RUN
ADJ
100k
INTERNAL
COMPENSATION
CURRENT
MODE
BATTERY
MANAGEMENT
CONTROLLER
ADJ
TMR
NTC
GND
FAULT
CHRG
8062 BD
8062fd
8
For more information www.linear.com/LTM8062
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