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參數(shù)資料
| 型號： | MAX1551-MAX1555 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | SOT23 Dual-Input USB/AC Adapter 1-Cell Li+Battery Chargers |
| 中文描述： | SOT23封裝雙輸入USB / AC適配器1節(jié)鋰電池充電器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 204K |
| 代理商： | MAX1551-MAX1555 |
General Description
The MAX1551/MAX1555 charge a single-cell lithium-ion
(Li+) battery from both USB* and AC adapter sources.
They operate with no external FETs or diodes, and
accept operating input voltages up to 7V.
On-chip thermal limiting simplifies PC board layout and
allows optimum charging rate without the thermal limits
imposed by worst-case battery and input voltage. When
the MAX1551/MAX1555 thermal limits are reached, the
chargers do not shut down, but progressively reduce
charging current.
The MAX1551 includes a
POK
output to indicate when
input power is present. If either charging source is
active,
POK
goes low. The MAX1555 instead features a
CHG
output to indicate charging status.
With USB connected, but without DC power, charge cur-
rent is set to 100mA (max). This allows charging from
both powered and unpowered USB hubs with no port
communication required. When DC power is connected,
charging current is set at 280mA (typ). No input-blocking
diodes are required to prevent battery drain.
The MAX1551/MAX1555 are available in 5-pin thin SOT23
packages and operate over a -40°C to +85°C range.
Applications
PDAs
Wireless Appliances
Cell Phones
Digital Cameras
Features
o
Charge from USB or AC Adapter
o
Automatic Switchover when AC Adapter is
Plugged In
o
On-Chip Thermal Limiting Simplifies Board
Design
o
Charge Status Indicator
o
5-Pin Thin SOT23 Package
o
Protected by U.S. Patent #6,507,172
M
SOT23 Dual-Input USB/AC Adapter 1-Cell Li+
Battery Chargers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-2902; Rev 0; 7/03
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
5 Thin SOT23-5
5 Thin SOT23-5
MAX1551
EZK-T
MAX1555
EZK-T
GND
DC
1
5
BAT
USB
MAX1551
(MAX1555)
THIN SOT23
TOP VIEW
2
3
4
POK
(CHG)
Pin Configuration
MAX1551
(MAX1555)
DC
USB
BAT
AC ADAPTER
3.7V TO 7V
USB
3.7V TO 6V
TO SYSTEM
LOAD
Li+
GND
TO LOGIC RAIL
CHARGE
CONTROL
POK
(CHG)
LOGIC
CONTROL
Typical Operating Circuit
*
Protected by U.S. Patent #6,507,172.
Selector Guide
PART
TOP MARK
ADRT
ADRU
FEATURES
POK
Output
CHG
Output
MAX1551EZK
MAX1555EZK
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1551 | SOT23. Dual-Input. USB/AC Adapter. 1-Cell Li+ Battery Chargers |
| MAX1555 | SOT23. Dual-Input. USB/AC Adapter. 1-Cell Li+ Battery Chargers |
| MAX1552 | Complete Power IC for Low-Cost PDAs |
| MAX1552ETE | Complete Power IC for Low-Cost PDAs |
| MAX1553ETA | High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1552ETE | 功能描述:PMIC 解決方案 Complete PMIC for PDAs RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX1552ETE-T | 功能描述:PMIC 解決方案 Complete PMIC for PDAs RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX1552EVKIT | 制造商:Maxim Integrated Products 功能描述:COMPLETE PMIC FOR LOW COST PDA'S - Rail/Tube |
| MAX1553ETA | 制造商:Maxim Integrated Products 功能描述:SMALLEST, HIGHEST-EFFICIENCY, 40V STEP-UP CON - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX1553ETA+ | 制造商:Maxim Integrated Products 功能描述:LED DRVR 10SEGMENT 2.7V TO 5.5V 8TDFN EP - Rail/Tube |
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