參數(shù)資料
型號： MAX1870AETJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： Step-Up/Step-Down Li+ Battery Charger
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC32
封裝： 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-2, TQFN-32
文件頁數(shù)： 13/32頁
文件大?。?/td> 1091K
代理商： MAX1870AETJ
M
Step-Up/Step-Down
Li+ Battery Charger
______________________________________________________________________________________
13
Pin Description (continued)
PIN
NAME
FUNCTION
12
ICTL
Charge-Current Control Input. Drive ICTL from V
REFIN
/ 32 to V
REFIN
to adjust the charge current. See the
Setting the Charge Current
section. Drive ICTL to GND to disable charging.
13
CELLS
Cell-Count Selection Input. Connect CELLS
to GND for two Li+ cells. Float CELLS for three Li+ cells, or
connect CELLS
to REFIN for four Li+ cells.
14
IINP
Input-Current Monitor Output. IINP is a replica of the input current sensed by the MAX1870. It represents
the sum of the current consumed by the charger and the current consumed by the system. IINP has a
transconductance of 2.8μA/mV.
15
SHDN
Shutdown Comparator Input. Pull
SHDN
low to stop charging. Optionally connect a thermistor to stop
charging when the battery temperature is too hot.
16
17
BATT
CSIN
Battery-Voltage Feedback Input
Charge Current-Sense Negative Input
18
CSIP
Charge Current-Sense Positive Input. Connect a current-sense resistor from CSIP to CSIN. Connect a
2.2μF capacitor from CSIP to GND.
19
BLKP
I.C.
DBST
PGND
I.C.
DLOV
Power Connection for Current-Sense Amplifier. Connect BLKP to BATT.
Internally Connected. Do not connect this pin.
Step-Up Power MOSFET (NMOS) Gate-Driver Output
Power Ground
Internally Connected. Do not connect this pin.
Low-Side Driver Supply. Bypass DLOV with a 1μF capacitor to GND.
20, 21
22
23
24
25
26
VHN
Power Connection for the High-Side MOSFET Driver. Bypass VHP to VHN with a 1μF or greater ceramic
capacitor.
27
DHI
High-Side Power MOSFET (PMOS) Driver Output. Connect to the gate of the high-side step-down
MOSFET.
28
VHP
Power Connection for the High-Side MOSFET Driver. Bypass VHP to VHN with a 1μF or greater ceramic
capacitor.
29
CSSN
Negative Terminal for Current-Sense Resistor for Charger Current. Connect a 2.2μF capacitor from CSSN
to GND.
30
CSSS
Negative Terminal for Current-Sense Resistor for System Load Current
31
CSSP
Positive Terminal for Input Current-Sense Resistors. Connect a current-sense resistor from CSSP to
CSSN. Connect an equivalent sense resistor from CSSP to CSSS.
32
DCIN
DC Supply Voltage Input. Bypass DCIN with a 1μF or greater ceramic capacitor to power ground.
Paddle. Connect to GND.
Paddle
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1870AETJ+ 功能描述:電池管理 Li+ Step Up/Step Down Battery Charger 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
MAX1870AETJ+T 功能描述:電池管理 Li+ Step Up/Step Down Battery Charger 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
MAX1870AETJ-T 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
MAX1870AEVKIT 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX1870A RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX1870ETJ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
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