參數資料
型號： MAX1874EVKIT
廠商： Maxim Integrated Products, Inc.
英文描述： MAX1874 Evaluation Kit
中文描述： MAX1874評估板
文件頁數： 5/16頁
文件大?。?/td> 405K
代理商： MAX1874EVKIT
M
Dual-Input, USB/AC Adapter, 1-Cell
Li+ Charger with OVP and Thermal Regulation
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(V
USB
= V
DC
= V
DCLV
= V
EN
= V
USEL
= 5V, V
BATT
= 4.2V, V
THRM
= V
REF
/ 2, Circuit of Figure 2,
T
A
= -40
°
C to +85
°
C
, unless otherwise
noted. Typical values are at T
A
= +25
°
C.) (Note 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BATTERY VOLTAGE
BATT Regulation Voltage
BATT Prequal Voltage Threshold
4.1685
2.8
4.2315
3.2
V
V
BATT rising
REF Voltage (Buffered Output)
I
REF
= 0 to 500μA, 4V < V
DC
or V
USB
< 6.5V;
does not affect BATT regulation accuracy
2.94
3.06
V
BATTERY CHARGING AND PRECHARGE CURRENT
DCI Voltage Range
0.1 x V
REF
930
490
V
REF
1070
565
495
95
70
7.5
2
V
V
DCI
= V
REF
V
DCI
= V
REF
/ 2
USEL = high
USEL = low
V
BATT
= 2.5V
No DC or USB power, V
BATT
= 4.2V
EN = GND, USB and/or DC powered
DCI Voltage to BATT Current
mA
USB Charging Current
mA
Prequal Charging Current
BATT Input Current
BATT Shutdown Current
THERMISTOR MONITOR AND DIE-TEMPERATURE REGULATION
THRM COLD Trip Level
THRM HOT Trip Level
THRM Disable Threshold
LOGIC INPUT/OUTPUTS AND GATE DRIVERS
DCOK
Off-Leakage Current
UOK
Off-Leakage Current
40
mA
μA
μA
(Note 2)
(Note 2)
0.72
0.28
50
0.76
0.30
150
V
REF
V
REF
mV
V
DCOK
= 12V, V
DC
= 0V
V
UOK
= 6.5V
DC input (% of charge current set at DCI)
1
1
20
μA
μA
8
CHG
Threshold to Indicate Battery Full,
Battery Current Falling (Note 3)
USB input, USEL = 5V
(% of USB charging current)
20
30
%
CHG
Logic-Low Output
CHG
Leakage Current
EN, USEL Logic-Input High Level
EN, USEL Logic-Input Low Level
EN, USEL Input Bias Current
Sinking 10mA sink
V
CHG
= 6.5V
0.4
1
V
μA
V
V
μA
1.6
0.4
1
Note 1:
BYP internally connects to the active power input (DCLV or USB). DCLV takes priority if both inputs are powered.
Note 2:
These limits guarantee +5
°
C accuracy with 5% accuracy of thermistor beta (3450 nominal) with 2
°
C of hysteresis.
Note 3:
The
CHG
output does not go high unless charge current is below the indicated threshold (as set by DCI) and the charger is in
voltage-mode operation. In 100mA USB mode,
CHG
goes high when the charger transitions from current to voltage mode.
Note 4:
Specifications to -40
°
C are guaranteed by design, not production tested.
相關PDF資料
PDF描述
MAX1875 Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
MAX1875-MAX1876 Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
MAX1875AEEG Dual 180∑ Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR
MAX1875EEG Fixed-Point Digital Signal Processor 288-BGA MICROSTAR
MAX1876 Fixed-Point Digital Signal Processor 288-BGA MICROSTAR
相關代理商/技術參數
參數描述
MAX1875AEEG 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1875AEEG+ 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1875AEEG+T 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1875AEEG-T 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1875EEG 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*