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Details for MAX8903CETI+ by Maxim Integrated
Electronic & Electrical Components > Semiconductors - ICs > Battery Management
BATTERY CHARGER LI-ION 2A TQFN-28
MAX8903CETI+ image

MAX8903CETI+ by Maxim Integrated

BATTERY CHARGER LI-ION 2A TQFN-28
Features
4MHz Switching for Tiny External Components
Dual Current-Limiting Inputsu2014AC Adapter or USB Automatic Adapter/USB/Battery Switchover to Support Load Transients 50mu2126 System-to-Battery Switch Supports USB Spec
Instant Onu2014Works with No/Low Battery
Integrated Current-Sense Resistor
No External MOSFETs or Diodes
Thermistor Monitor
Part Information
MAX8903CETI+ image
RoHS Compliant
Description
The MAX8903A–MAX8903E/MAX8903G/MAX8903H/ MAX8903J/MAX8903N/MAX8903Y are integrated 1-cell Li+ chargers and Smart Power Selectors™ with dual (AC adapter and USB) power inputs. The switch mode charger uses a high switching frequency to eliminate heat and allow tiny external components. It can operate with either separate inputs for USB and AC adapter power, or from a single input that accepts both. All power switches for charging and switching the load between battery and external power are included on- chip. No external MOSFETs, blocking diodes, or cur- rent-sense resistors are required. The MAX8903_ features optimized smart power control to make the best use of limited USB or adapter power. Battery charge current and SYS output current limit are independently set. Power not used by the system charges the battery. Charge current and SYS output cur- rent limit can be set up to 2A while USB input current can be set to 100mA or 500mA. Automatic input selection switches the system from battery to external power. The DC input operates from 4.15V to 16V with up to 20V pro- tection, while the USB input has a range of 4.1V to 6.3V with up to 8V protection. The MAX8903_ internally blocks current from the bat- tery and system back to the DC and USB inputs when no input supply is present. Other features include pre- qual charging and timer, fast charge timer, overvoltage protection, charge status and fault outputs, power-OK monitors, and a battery thermistor monitor. In addition, on-chip thermal limiting reduces battery charge rate and AC adapter current to prevent charger overheat- ing. The MAX8903_ is available in a 4mm x 4mm, 28-pin thin QFN package. The various versions of the MAX8903_ allow for design flexibility to choose key parameters such as system regulation voltage, battery prequalification threshold, and battery regulation voltage. The MAX8903B/ MAX8903E/MAX8903G also includes power-enable on battery detection. See the Selector Guide section for complete details.
Specifications
Battery Type:
Li-Ion
Input Voltage:
16V
Battery Charge Voltage:
16V
Charge Current Max:
2A
Battery IC Case Style:
TQFN
No. of Pins:
28Pins
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)
Alternate Descriptions
Maxim,MAX8903CETI+ RS Components
BATTERY CHARGER, LI-ION, 2A, TQFN-28; Battery Type:Li-Ion; Input Voltage:16V; Battery Charge Voltage:16V; Charge Current Max:2A; Battery IC Case Style:TQFN; No. of Pins:28Pins; No. of Series Cells:1; Operating Temperature Min:-40°C RoHS Compliant: Yes Newark Electronics
DC to DC Charger 28-Pin TQFN EP Avnet America
DC to DC Charger 28-Pin TQFN EP Avnet Europe
2A 1-Cell Li+ DC-DC Charger for USB and Adapter Power Future Electronics