MAX1555EZK Datasheet, PDF (2/8 Pages) Maxim Integrated Products – PLASTIC ENCAPSULATED DEVICES

Conclusion
The MAX1555 successfully meets the quality and reliability standards required of all Maxim products. In addition,
Maxim’s continuous reliability monitoring program ensures that all outgoing product will continue to meet Maxim’s quality
and reliability standards.
Table of Contents
I. ........Device Description
II. ........Manufacturing Information
III. .......Packaging Information
IV. .......Die Information
V. ........Quality Assurance Information
VI. .......Reliability Evaluation
......Attachments
I. Device Description
A. General
The MAX1555 charges a single-cell lithium-ion (Li+) battery from both USB* and AC adapter sources. It operates
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 thermal limits are reached, the charger does
not shut down, but progressively reduces charging current.
The MAX1555 includes a POK-bar output to indicate when input power is present. The MAX1555 features a CHG-bar
output to indicate charging.
With USB connected, but without DC power, charge current 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 MAX1555 is available in 5-pin thin SOT23 packages and operates over a -40°C to +85°C range.
B. Absolute Maximum Ratings
Item
DC to GND
DC to BAT
BAT, CHG, POK, USB to GND
Operating Temperature Range
Junction Temperature Range
Storage Temperature Range
Lead Temperature (soldering, 10s)
Continuous Power Dissipation (TA = +70°C)
5-Pin Thin SOT23
Derates above +70°C
5-Pin Thin SOT23
Rating
0 to +8V
0 to +7V
-0.3V to +7V
-40°C to +85°C
-40°C to +150°C
-65°C to +150°C
+300°C
727mW
9.1mW/°C