MAX17703

PRODUCTION

4.5V to 60V, Synchronous Step-Down Li-Ion Battery Charger Controller

Wide Input Voltage, High-Efficiency, Switching Super Cap Battery Charger

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.81

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Part Details

Optimized Feature-Set for Li-Ion Batteries Including Li-Polymer, LiFePO₄ and Li-Titanate
- ±4% Charging Current Regulation Accuracy
- ±6% Charging Current Monitor Accuracy (ISMON)
- ±1% Voltage Regulation Accuracy
- Programmable Constant Current (CC) Mode Charging Current (ILIM)
- Charge Termination on Full Battery Detection with Taper Current Threshold and Taper Timer
- Wide 4.5V to 60V Input-Voltage Range
- Adjustable Output-Voltage Range from 1.25V up to 12 Li-Ion cells in series
- 125kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization (RT/SYNC)
Reliable Operation in Adverse Environmental Conditions
- Input Short-Circuit Protection (GATEN)
- Safety Timer Feature (TMR)
- Deeply Discharged Battery Detection and Preconditioning (DDTH)
- Battery Temperature Sensing and Charge when Within Temperature of Range (TEMP)
- Cycle-by-Cycle Overcurrent Limit
- Programmable EN/UVLO Threshold
- Status Output Monitoring Using Open-Drain Outputs (FLG1 and FLG2)
- Overtemperature Protection
- Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions
- Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range

Part Models: 2
1ku List Price: Starting From $2.81

Documentation

Data Sheet 1

MAX17703: 4.5V to 60V, Synchronous Step-Down Li-Ion Battery Charger Controller Data Sheet (Rev.1) 02/17/2022

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX17703ATG+	24-LFCSP-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX17703ATG+T	24-LFCSP-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

SIMPLIS Models 1

MAX17703 SIMPLIS Schematics

Evaluation Kits

Evaluation Kit for the MAX17703 in 4.2V Li-Ion Battery Charger Application

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Features and Benefits

Operates from an 6.3V to 60V Input Supply
10A CC Mode Charging Current
4.2V CV Mode Charging Voltage
350kHz Switching Frequency
Resistor-Programmable UVLO Threshold (EN/UVLO)
Input-Short Protection
3V Programmed Deeply Discharged Battery Detection
Capacitor Programmed 10.4 hours Safety Timer
Charge Termination on Full Battery Detection with Taper Current Threshold and Taper-Timer
Cycle-by-Cycle Overcurrent Limit
External Clock Synchronization (RT/SYNC)
Charger Status Flags (FLG1, FLG2)
Charging Current Monitoring (ISMON)
Battery Temperature Sensing and Charge when Within Operating Temperature Range +5°C to +45°C
IC Overtemperature Protection
Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17703EVKITA# (EV kit) provides a proven design to evaluate the MAX17703 high-efficiency, highvoltage, Himalaya synchronous step-down DC-DC Li-ion charger controller. The EV kit charges the Li-ion battery in constant current (CC) and constant voltage (CV) states and terminates in a topup-charge state after the taper timer is elapsed. The EV kit is designed to charge the Li-ion battery with 10A CC mode charging current (I_CHGMAX) and 4.2V CV mode voltage (V_OUT) from an 6.3V to 60V input supply. The EV kit is optimized for a 24V nominal input application. The switching frequency of the EV kit is set at 350kHz (f_SW) for optimum efficiency and component size. The EV kit features a safety timer (TMR) to set the maximum allowed CC mode and CV mode charging time. The EV kit also features battery temperature sensing and charges only when the temperature is in the allowable charging temperature range. For more details about the IC benefits and features, refer to the MAX17703 IC data sheet.

Applications

Battery Backup for Lighting, Security Cameras, and Control Panels
Building and Home-Automation Backup Power
Industrial Battery Charging and Energy Storage
Portable Industrial and Medical Equipment
Power Tools and Handheld Terminals

Resources

MAX17703EVKITA ODB Files - Design Files
1.32M

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MAX17703

Part Details

Documentation

Data Sheet 1

Video 1

Book & eBook 1

Solutions Bulletin & Brochure 1

Analog Dialogue 1