参数资料
| 型号： | LTC4101EG#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/30页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR BATT CHRG 24-SSOP |
| 标准包装： | 59 |
| 功能： | 充电管理 |
| 电池化学： | 智能电池 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
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LTC4101
PIN FUNCTIONS
I LIM (Pin 13): An external resistor is connected between this
pin and GND. The value of the external resistor programs
the range and resolution of the programmed charger
current. This is a digital, not an analog, function.
V LIM (Pin 14): An external resistor is connected between
this pin and GND. The value of the external resistor
programs the range and resolution of the charging
voltage. This is a digital, not an analog, function.
THB (Pin 15): SafetySignal Force/Sense Pin to Smart
Battery. See description of operation for more detail. The
maximum allowed combined capacitance on THA, THB and
SafetySignal is 1nF (see Figure 4). A series resistor 54.9k
needs to be connected between this pin and the battery’s
SafetySignal for this circuit to work correctly.
THA (Pin 16): SafetySignal Force/Sense Pin to Smart
Battery. See description of operation for more detail. The
maximum allowed combined capacitance on THA, THB
and SafetySignal is 1nF (see Figure 4). A series resistor
1130Ω needs to be connected between this pin and the
battery’s SafetySignal for this circuit to work correctly.
V DD (Pin 17): Power Supply Input for the LTC4101 Digital
Circuitry. Bypass this pin with 0.1μF. Typically between
3.3V and 5V DC .
I TH (Pin 19): Control Signal of the Inner Loop of the Current
Mode PWM. Higher I TH corresponds to higher charging
current in normal operation. A 0.0015μF capacitor to GND
?lters out PWM ripple. Typical full-scale output current is
40μA. Nominal voltage range for this pin is 0V to 3V.
I DC (Pin 20): Bypass to GND with a 0.068μF Capacitor.
CSP (Pin 21): Current Ampli?er CA1 Input. This pin
and the BAT pin measure the voltage across the sense
resistor, R SENSE , to provide the instantaneous current
signals required for both peak and average current mode
operation.
BAT (Pin 22): Battery Sense Input and the Negative Refer-
ence for the Current Sense Resistor. A bypass capacitor
of at least 10μF is required.
CLN (Pin 23): Negative Input to the Input Current Limiting
Circuit Block. If no current limit function is desired, connect
this pin to CLP. The threshold is set at 100mV below the
voltage at the CLP pin. When used to limit supply current,
a ?lter is needed to ?lter out the switching noise.
CLP (Pin 24): Positive Input to the Input Current Limiting
Circuit Block. This pin also serves as a power supply for
the IC.
V SET (Pin 18): Tap Point of the Programmable Resistor
Divider, which Provides Battery Voltage Feedback to the
Charger.
4101fa
8
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| LTC4110 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Battery Backup System Manager |
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