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參數(shù)資料
| 型號： | MAX1758EAI+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大小： | 224K |
| 代理商： | MAX1758EAI+ |
MAX1758
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 28V Switch
12
______________________________________________________________________________________
CSS
LEVEL SHIFT
AND
GAIN OF 10
ON
CCV
RCS
Rx
R2
BDIV
TO
BATT
R
3Rx
+1
GMS
TO
BATT
ENABLE
GMI
MIN
AND
CLAMP
REF
VL
CCI
CCS
BST
PGND
HSD
LX
CSSN
CSSP
GMV
CS
BATT
ISETIN
ISETOUT
CELL
VADJ
CNTRL
LOGIC
CSI
LEVEL SHIFT
AND
GAIN OF 7
ON
SUMMING
COMPARATOR
BLOCK
LEVEL
SHIFT
REF/2 =
ZERO
CURRENT
V/I MODE
TO REF
OSCILLATOR, SM, TIMERS
THERM CONTROL
TEST CIRCUITRY
R2 = R(2N -1)
WHERE
N = CELL NUMBER
Rx
REF/2
3Rx
9R
R
DCIN
THM
5.4V
REGULATOR
INTERNAL
REFERENCE
DRIVER
+1
FASTCHG
FULLCHG
FAULT
TIMER 1
TIMER 2
GND
+1
MAX1758
Figure 3. MAX1758 Functional Diagram
Input Current Regulator
The total input current (from a wall cube or other DC
source) is the sum of system load current plus the bat-
tery-charging current. The input current regulator limits
the source current by reducing charging current when
input current exceeds the set input current limit. System
current will normally fluctuate as portions of the system
are powered up or put to sleep. Without input current
regulation, the input source must be able to supply the
maximum system load current plus the maximum
charger input current. By using the input current limiter,
the current capability of the AC wall adapter may be
lowered, reducing system cost.
Input current is measured through an external sense
resistor at CSSP and CSSN. The voltage at ISETIN also
adjusts the input current limit. Full-scale input current is
achieved when ISETIN is connected to REF, setting the
full-scale current-sense regulation voltage to 100mV.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1758EAI+ | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EAI+T | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EAI-T | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EVKIT | 功能描述:電池管理 Evaluation Kit for the MAX1757 MAX1758 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 |
| MAX17595ATE+ | 功能描述:電流型 PWM 控制器 AC/DC-DC/DC Peak Current-Mode Cnvrtr RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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