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參數(shù)資料
| 型號： | MAX1647 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Chemistry-Independent Battery Chargers |
| 中文描述： | 與化學(xué)類型無關(guān)的電池充電控制器 |
| 文件頁數(shù)： | 19/24頁 |
| 文件大?。?/td> | 161K |
| 代理商： | MAX1647 |
Two sources of current in the MAX1647 charge the bat-
tery: a binary-weighted linear current source sources
from IOUT, and a switching regulator controls the current
flowing through the current-sense resistor (R1). IOUT
provides a small maintenance charge current to com-
pensate for battery self-discharge, while the switching
regulator provides large currents for fast charging.
IOUT sources from 1mA to 31mA. Table 3 shows the
relationship between the value programmed with the
ChargingCurrent( ) command and IOUT source current.
The CCV_LOW comparator checks to see if the output
voltage is too high by comparing CCV to REF / 4. If
CCV_LOW = 1 (when CCV < REF / 4), IOUT shuts off,
preventing the output voltage from exceeding the voltage
set point specified by the ChargingVoltage( ) register.
VOLTAGE_NOTREG = 1 whenever the internal clamp
pulls down on CCV. (The internal clamp pulls down on
CCV to keep its voltage close to CCI’s voltage.)
M
Chemistry-Independent
Battery Chargers
______________________________________________________________________________________
19
Figure 9. Average Voltage Between CS and BATT vs. Current DAC Code
Table 3. Relationship Between IOUT Source Current and ChargingCurrent( ) Value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ALARM_
INHIBITED
(NOTE 1)
CHARGE_
INHIBITED
0x0010–0xFFFF
0x0010–0xFFFF
0x0010–0xFFFF
0x0010–0xFFFF
0x0010–0xFFFF
0x0010–0xFFFF
ChargingVoltage( )
0x0001–0x001F
0x0020–0xFFFF
0x0001–0x001F
0x0020–0xFFFF
0x0020–0xFFFF
0x0001–0x001F
ChargingCurrent( )
1
0
1
1
1
0
CCV_LOW
0
x
1
1
0
x
VOLTAGE_
NOTREG
0mA
31mA
1mA–31mA
31mA
0mA
1mA–31mA
IOUT
OUTPUT
CURRENT
0x0000–0x000F
x
x
x
x
x
x
x
x
0
0
0
0x0000
x
x
x
x
x
x
x
x
x
x
0mA
0mA
0mA
0mA
0mA
x
1
0
1
x
0
x
x
1
0
0
0
Note 1:
Logical AND of THERMISTOR_HOT, HOT_STOP, NOT(THERMISTOR_UR).
185
SEL = OPEN OR SEL = VL
2.94
0b000001
0b100000
0b111111
CURRENT DAC CODE, DA5–DA0 BITS
A
I
94
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1648 | Chemistry-Independent Battery Chargers |
| MAX1647-MAX1648 | Chemistry-Independent Battery Chargers |
| MAX1648ESE | Chemistry-Independent Battery Chargers |
| MAX1647EAP | Chemistry-Independent Battery Chargers |
| MAX1649CSA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1647EAP | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1647EAP+ | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1647EAP+T | 制造商:Maxim Integrated Products 功能描述:CHGR MULTI-CHEM 4A 18V 20SSOP - Tape and Reel |
| MAX1647EAP-T | 制造商:Maxim Integrated Products 功能描述:CHEMISTRY-INDEPENDENT BATTERY CHARGERS - Tape and Reel |
| MAX1648ESE | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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