MAX1555EZK+T by Analog Devices

SOT23, Dual-Input, USB/AC Adapter, 1-Cell Li+ Battery Chargers


The MAX1551 and 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 and MAX1555 thermal limits are reached, the chargers do not shut down, but progressively reduce charging current. The MAX1551 includes an active-low POK output to indicate when input power is present. If either charging source is active, active-low POK goes low. The MAX1555 instead features a active-low CHG output to indicate charging status. 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 MAX1551 and MAX1555 are available in 5-pin thin SOT23 packages and operate over a -40°C to +85°C range.

Where to Buy

Prices starting from US$0.38

Distributor Stock
Logo for Farnell
Farnell
from US$1.30
1,919
in stock
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Logo for Analog Devices
Analog Devices
from US$1.45
33,710
in stock
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Logo for element14
element14
from US$1.52
1,919
in stock
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RS
from US$1.50
190
in stock
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Logo for Newark Electronics
Newark Electronics
from US$0.38
5
in stock
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Features

Charge from USB or AC Adapter
Automatic Switchover when AC Adapter is Plugged In
On-Chip Thermal Limiting Simplifies Board Design
Charge Status Indicator
5-Pin Thin SOT23 Package

Specifications

Charging VIN (V) (max) 7
Max. ICHG (A) 0.28
Cell Chemistry Li-IonLi-Polymer
# Lithium Ion Cells 1
Protected VIN (V) (max) 7
Charger (V) 4.2
Oper. Temp. (°C) -40 to +85
Package/Pins TSOT/5
BudgetaryPrice (See Notes) 0.94


MAX1555EZK+T Semiconductors - ICs by Analog Devices

BATTERY CHARGER LI-ION 280MA SOT-23-5

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Battery Type Li-Ion
Input Voltage 7V
Battery Charge Voltage 6V
Charge Current Max 280mA
Battery IC Case Style SOT-23
No. of Pins 5Pins
No. of Series Cells 1
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

SOT23, Dual-Input, USB/AC Adap | Analog Devices
BATTERY CHARGER, LI-ION, 280MA, SOT-23-5 | element14
USB/AC ADAPTER 1-CELL LI, CHARGER | RS
Battery Charger, Li-Ion, 280Ma, Sot-23-5 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1555EZK+T ?

Additional datasheets, footprints and schematics for MAX1555EZK+T are listed on our Part Details page. You can also find images and similar parts to MAX1555EZK+T on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX1555EZK+T on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX1555EZK+T price breaks, MOQs, lead times, inventory and SKUs from distributors.

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Is the MAX1555EZK+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1555EZK+T have stock available?

Authorised distributors including Analog Devices, element14, Farnell, RS and Newark Electronics have stock available or on a lead time for MAX1555EZK+T .

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