Switch-Mode Li+ Charger Controller

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Low-Cost and Simple Circuit
Charges 2-, 3-, or 4-Series Lithium-Ion Cells
AC Adapter Input-Current-Limit Loop
Also Charges Ni-Based Batteries
Analog Output Monitors Charge Current
±0.75% Battery-Regulation Voltage
5μA Shutdown Battery Current
Input Voltage Up to 28V
200mV Dropout Voltage/100% Duty Cycle
Adjustable Charging Current
300kHz PWM Oscillator Reduces Noise
Space-Saving 16-Pin QSOP
MAX1873 Evaluation Kit Available to Speed Designs
2-, 3-, or 4-Cell Li+ Battery Pack Chargers
6-, 9-, or 10-Cell Li+ Battery Pack Chargers
Desktop Cradle Chargers
Handheld Instruments (PDAs, Palmtops)
Notebook Computers
Portable Desktop Assistants (PDAs)
Portable Internet Tablets

Attribute Value
Battery Type Lithium-Ion
Mounting Type Surface Mount
Package Type QSOP
Pin Count 16
Typical Operating Supply Voltage 6 → 28 V
Dimensions 4.98 x 3.99 x 1.49mm
Length 4.98mm
Maximum Operating Temperature +85 °C
Height 1.49mm
Width 3.99mm
Maximum Output Voltage 5.65 V
Minimum Operating Temperature -40 °C
Number of Cells 3
Minimum Output Voltage 5.15 V
400 In stock for delivery within 2 working days
Unit of sale: Each (In a Tube of 100)
(exc. VAT)
(inc. VAT)
Per unit
Per Tube*
100 - 200
300 +
*price indicative