|
MAX1667
Chemistry-Independent, Level 2 Smart Battery Charger
1%-Accurate, Chemistry-Independent, Smart Battery Charger Easily Charges 2-4 Series Li+ Cells
|
Status
All versions are Not Recommended for New Designs. See Ordering Information for recommended replacements.
Description
The MAX1667 provides the power control necessary to charge batteries of any chemistry. All charging functions are controlled through the Intel® System Management Bus (SMBus™) interface. The SMBus 2-wire serial interface sets the charge voltage and current and provides thermal status information. The MAX1667 functions as a Level 2 charger, compliant with the Duracell®/Intel Smart Battery Charger Specification.
In addition to the feature set required for a Level 2 charger, the MAX1667 generates interrupts to signal the host when power is applied to the charger or when a battery is installed or removed. Additional status bits allow the host to check whether the charger has enough input voltage, and whether the voltage on or current into the battery is being regulated. This allows the host to determine when lithium-ion (Li+) batteries have completed the charge without interrogating the battery.
The MAX1667 is available in a 20-pin SSOP with a 2mm profile height.
|
|
Data Sheet
|
Key Features
- Charges Any Battery Chemistry: Li+, NiCd,
NiMH, Lead Acid, etc.
- SMBus 2-Wire Serial Interface
- Compliant with Duracell/Intel Smart Battery Charger Specification Rev. 1.0
- 4A, 3A, or 1A (max) Battery Charge Current
- 5-Bit Control of Charge Current
- Up to 18.4V Battery Voltage
- 11-Bit Control of Voltage
- ±1% Voltage Accuracy
- Up to +28V Input Voltage
- Battery Thermistor Fail-Safe Protection
- Greater than 95% Efficiency
- Synchronous Rectifier
|
|
Applications/Uses
- Charger Base Stations
- Notebook Computers
- PDAs and Other Handheld Devices
- Phones
|
|
|
|
Diagram
 Typical Operating Circuit
Reliability Reports
| Show FIT data for: |
|
| Request Reliability Report for: |
|
Software/Models
Ordering Information
|
Part Number
|
Free
Sample |
Buy |
Status
|
Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX1667EAP
|
|
|
NRND |
MAX8731A
|
SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
|
-40°C to +85°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX1667EAP+
|
|
|
NRND |
MAX8731A
|
SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1667EAP+T
|
|
|
NRND |
MAX8731A
|
SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1667EAP-T
|
|
|
NRND |
MAX8731A
|
SSOP;20 pin
Land Pattern: Not Available
|
-40°C to +85°C
|
See data sheet
|
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
|
Notes and Comments
Up to 18.4V battery voltage, synchronous rectifier, 11-bit voltage control, 5-Bit Current Control
Similar Products by Function
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1488
Rev 1;
2003-06-18
This page last modified: 2007-06-04
|
Download
E-Mail