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參數(shù)資料
| 型號(hào)： | MAX1612EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Bridge-Battery Backup Controllers for Notebooks |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PTICH, QSOP-16 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 136K |
| 代理商： | MAX1612EEE |
M
Bridge-Battery Bac kup Controllers
for Notebooks
_______________________________________________________________________________________
5
NAME
FUNCTION
1
ISET
Bridge-Battery Charge-Current Input. Connect a current-setting resistor from this input to a voltage
higher than the bridge battery. Maximum current rating is 10mA. Pulling ISET below 0.4V resets the
internal counter.
2
BBATT
Bridge-Battery Connection. Bridge-battery charger output.
PIN
3
LX
Step-Up DC-DC Converter N-Channel MOSFET Drain. The maximum operating range is 12V.
4
LBO
Open-Drain Low-Battery Detector Output. When V
LBI
falls below 1.8V,
LBO
sinks current. When
V
LBI
rises above 2.0V,
LBO
becomes high impedance.
Bridge-Battery On Input. When high, the DC-DC converter turns off. When pulled low through an
external resistor, the resistor sets the peak inductor current. The inductor current is approximately
42,000 times the current in the external resistor (R
BBON
).
8
FULL
Open-Drain Bridge-Battery Full Indicator Output. When the internal timer reaches all 1sec, FULL
goes high impedance.
7
CCMD
Charge Command Input. When low with
DCMD
high, the internal switch from ISET to BBATT is
closed, charging the bridge battery.
CCMD
is inhibited if
DCMD
is low. The internal timer counts up
at a frequency set by the CC capacitor.
6
DCMD
Discharge Command Input. When low with
CCMD
high, the internal timer counts down at a
frequency set by the CD capacitor. When both
DCMD
and
CCMD
are low, discharge takes
precedence.
5
BBON
13
CD
Discharge Oscillator Capacitor Input. This capacitor sets the discharging oscillator frequency,
which determines the maximum time to decrement the counter from all 1s to all 0s. Calculate the
capacitor value as follows: CD (in nF) = 4.3
·
discharge time (in hours).
12
CC
Charge Oscillator Capacitor Input. This capacitor programs the charging oscillator frequency,
which sets the time for the internal counter to reach all 1s. Determine the capacitor value by: CC
(in nF) = 4.3
·
charge time (in hours).
11
GND
Ground
10
LBI
Low-Battery-Detector Input. When LBI falls below 1.8V,
LBO
goes low and sinks current. When LBI
goes above 2.0V,
LBO
goes high impedance. Hysteresis is typically 200mV.
9
FB
Feedback Input of Step-Up DC-DC Converter. Regulates to 2V. Connect feedback resistors to set
output voltage (Figure 2).
Pin Desc ription
14
PGND
Power Ground and Step-Up DC-DC Converter N-Channel MOSFET Source
15
LRO
5V (MAX1612) or 3.3V (MAX1613) Linear-Regulator Output. Bypass to GND with a 1μF capacitor.
Maximum external load current is 10mA.
16
LRI
Linear-Regulator Supply Input
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1612EEE+ | 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 |
| MAX1612EEE+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 |
| MAX1612EEE-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 |
| MAX1612EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX16131WTNN00+T | 功能描述:監(jiān)控電路 Dual Pushbutton Controller RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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