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參數(shù)資料
| 型號： | MAX1660EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Digitally Controlled Fuel-Gauge Interface |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 244K |
| 代理商： | MAX1660EEE |
_______________Detailed Desc ription
The MAX1660 measures the cumulative charge into
(charging) and out of (discharging) the system battery
pack and stores the information in one of two internal,
independent charge and discharge counters. It
achieves battery-pack overcharge and overdischarge
protection through a powerful digital compare function
that interrupts the host CPU when the charge or dis-
charge counter reaches a host-programmed value. The
device also informs the host of changes in the direction
of current flow and protects the battery pack from
short-circuit and overcurrent conditions.
The MAX1660 incorporates a 2-wire System Man-
agement Bus (SMBus )-compliant serial interface,
allowing access to charge/discharge counters and
internal registers. An optional third wire provides an
SMBALERT#-compliant interrupt signal, or it may be used
as a simple, stand-alone host interrupt.
Coulomb-Counting Interfac e
The MAX1660’s Coulomb-counting interface monitors
the charge flowing in either the charging or discharging
direction, and counts the Coulombs of charge by incre-
menting either the charge counter (CHGCOUNT) or the
discharge counter (DISCOUNT) accordingly. The num-
ber of counter increments generated per Coulomb of
charge sensed (conversion gain) is given by the follow-
ing equation:
where R
CS
is the current-sense resistor (see the Typical
Operating Circuit. The gain factor is the constant of
proportionality that relates the counter values stored in
CHGCOUNT and DISCOUNT to the amount of charge
flow into or out of the battery pack. A higher conversion
gain (larger R
CS
) increases resolution at low currents,
A = 416.7 10 R
Counts
Coulomb
CS
M
*
Digitally Controlled
Fuel-Gauge Interfac e
_______________________________________________________________________________________________________
7
______________________________________________________________Pin Desc ription
NAME
FUNCTION
1
INT
Open-Drain Host-Interrupt Output.
INT
sinks current when active, otherwise high-impedance (see
INT
Outputsection).
INT
is compatible with the SMBus SMBALERT# (the “#” indicates asserted low) signal.
Connect a 100k
pull-up resistor between
INT
and VL. Leave
INT
unconnected if host interrupt is not used.
2
SHDN
Active-Low Shutdown Input (see Shutdown Modes section)
PIN
3
N.C.
No Connection. Not internally connected.
4
CS
Current-Sense Resistor Input
8
OCI
Charge Overcurrent-Detection Input (see Overcurrent Detectionsection)
7
ODI
Discharge Overcurrent-Detection Input (see Overcurrent Detectionsection)
6
REF
2.00V Reference Output. Bypass REF to AGND with a 10nF capacitor (see Internal Regulator and Reference
section).
5
AGND
Analog Ground
13
OCO
High-Voltage, Open-Drain MOSFET Gate-Driver Output. OCO controls activation of the battery-charge path
(see OCO and ODO Gate Drivers section).
12
ODO
High-Voltage, Open-Drain MOSFET Gate-Driver Output. ODO controls activation of the battery-discharge
path (see OCO and ODO Gate Drivers section).
11
BATT
Supply Input
10
VL
3.3V Linear-Regulator Output. Bypass VL with a 0.33μF capacitor to GND (see Internal Regulator and
Reference section).
9
GND
Ground
16
SCL
Serial-Clock Input. Connect a 10k
resistor between SDA and VL (see SMBus Interface section).
15
SDA
Serial-Data Input/Output. Connect a 10k
resistor between SDA and VL (see SMBus Interface section).
14
RST
Active-Low Reset Output. Connect a 100k
pull-up resistor between
RST
and VL. Leave
RST
unconnected
if the power-on reset function is not used (see
RST
Outputsection).
*Patent pending
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1660EEE+ | 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 |
| MAX1660EEE+T | 制造商:Maxim Integrated Products 功能描述:FUEL GAUGE 4A 16QSOP - Tape and Reel |
| MAX1660EEE-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 |
| MAX1661EUB | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MAX1661EUB+T | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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