參數(shù)資料
型號(hào)： MAX1873
廠商： Maxim Integrated Products, Inc.
英文描述： Simple Current-Limited Switch-Mode Li Charger Controller
中文描述： 簡(jiǎn)單的限流型開關(guān)模式Li+充電控制器
文件頁(yè)數(shù)： 5/14頁(yè)
文件大?。?/td> 206K
代理商： MAX1873
M
Simple Current-Limited Switch-Mode
Li+ Charger Controller
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
DCIN
= V
CSSP
= V
CSSN
= 18V, V
ICHG/EN
= V
REF
, V
VADJ
= V
REF
/2. MAX1873R: V
BATT
= V
CSB
= 8.4V;
MAX1873S: V
BATT
= V
CSB
= 12.6V; MAX1873T: V
BATT
= V
CSB
= 16.8V;
T
A
= -40
°
C to +85
°
C
. Typical values are at T
A
= +25
°
C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
4.8
7.2
9.6
MAX
5.2
7.8
10.4
UNITS
MAX1873R
MAX1873S
MAX1873T
BATT Undervoltage Threshold
For I
CHG
/20 trickle
charge
V
CURRENT SENSE
V
ICHG/EN
= V
REF
V
ICHG/EN
= V
REF
/4
190
40
210
60
mV
mV
CSB to BATT Battery Current-Sense
Voltage
CSB to BATT Current-Sense Voltage
when V
BATT
< 2.5V per Cell
CSSP to CSSN Current-Sense Voltage
CONTROL INPUTS/OUTPUTS
ICHG/EN Input Threshold
5
15
mV
6V < V
CSSP
< 28V
90
110
mV
Includes 50mV of hysteresis
500
700
mV
ICHG/EN Input Voltage Range for
Charge Current Adjustment
700
V
REF
mV
VADJ Input Current
ICHG/EN Input Current
VADJ Input Voltage Range
V
VADJ
= V
REF
/2
V
ICHG/EN
= V
REF
-100
-100
0
100
100
V
REF
nA
nA
V
Full scale
V
CSB
- V
BATT
= 200mV,
0 < I
OUT
< 500μA
3.6
4.4
25% scale
V
CSB
- V
BATT
= 50mV,
0 < I
OUT
< 500μA
V
CSB
- V
BATT
= 10mV
0.9
1.1
V
Trickle charge
75
325
IOUT Voltage
No charge
current
V
CSB
- V
BATT
= 0,
I
IOUT
= sinking 20μA
40
90
mV
Note 1:
While it may appear possible to set the Battery Regulation Voltage higher than the Battery Overvoltage Cutoff Threshold, this
cannot happen because both parameters are derived from the same reference and track each other.
Note 2:
Specifications to -40
°
C are guaranteed by design, not production tested.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1873EVKIT 功能描述:電池管理 Evaluation Kit for the MAX1873 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
MAX1873REEE 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
MAX1873REEE+ 功能描述:電池管理 Switch-Mode Li+ 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
MAX1873REEE+T 功能描述:電池管理 Switch-Mode Li+ 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
MAX1873REEE-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
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