MAX14663：BGM-Optimized Power Solution with Cable Detection

Most Highly Integrated Power Solution for Rechargeable Portable Medical Devices

The MAX14663 is a complete power solution for portable medical devices, including blood glucose meters. The device integrates a high-efficiency single-cell Li-ion switching charger targeted at space-limited portable applications with small batteries. An ultra low-power seal mode which significantly reduces standby current and preserves battery charge during prolonged periods of storage is also included. This mode extends battery shelf life, and enables improved customer experience with immediate out-of-box use. Additionally, the MAX14663 embeds a Maxim proprietary ModelGauge™ (fuel gauge), which provides an accurate estimate of the available capacity for rechargeable Li-ion batteries. A boost converter and LED current sinks are also integrated for powering OLED displays or LED backlights. Internal cable-detection circuitry enables the MAX14663 to identify the presence of an unpowered/unconnected USB cable. This information can be used by the portable system to intelligently select its operating mode, maximizing accuracy and minimizing measurement errors. The MAX14663 operates over the -20°C to +70°C temperature range and is available in a (5mm x 5mm), 40-pin, TQFN-EP package.

Key Features

High-Efficiency Switching Charger Tailored for Small Capacity Batteries Saves Space, Extends Battery Life
Battery Isolation Switch Extends Battery Shelf Life
- Hardware/Software Configurable
- Integrated Power-Key Monitor
Integration Simplifies and Shrinks Display Driving Circuitry
- 3-Channel Programmable-LED Current Sinks
- Integrated Step-Up Converter
Integrated Protection and Control for Reliable Performance
- Fully Integrated Cable Detection Controller to Ensure Measurement Accuracy
- Overvoltage and Thermal Protection
  - 28V Tolerant VB Input Connection
- High ESD Protection (VB, DP, DM, KIN)
  - ±15kV HBM ESD Protection
  - ±10kV Air-Gap Protection
  - ±8kV Contact Discharge Protection
- Manual Reset Controller
- Programmable Interrupt Generation (I2C)
Integrated ModelGauge Host-Side Fuel Gauge Saves Space and Accurately Estimates State of Charge
- ModelGauge Algorithm
- Tolerates Temperature & Load Variation
- No Error Accumulation
- Learning Not Necessary
- Current-Sense Resistor Not Required

Applications/Uses

Portable Blood Glucose Meters
Portable Medical Devices
USB Connected Devices

DataSheet

title	Download file
MAX14663 Data Sheet	MAX14663.pdf

Parametrics

Part Number	Primary Topology	Monitor/Control Features	DC-DC/Power Features	LCD/LED/Flash/CCD Features	Battery Charger Features	Interface Type	V_IN (V)	V_IN (V)	V_OUT (V)	V_OUT (V)	Max. I_OUT (A)	Max. I_OUT (A)	Oper. Freq. (kHz)	Package/Pins
Part Number	Primary Topology	Monitor/Control Features	DC-DC/Power Features	LCD/LED/Flash/CCD Features	Battery Charger Features	Interface Type	min	max	min	max	Max. I_OUT (A)	Max. I_OUT (A)	Oper. Freq. (kHz)	Package/Pins
MAX14663	Step-Up	Reset Output Serial Interface Shutdown	Current Limit Internal Switch Soft Start	AMOLED Bias White LED	Battery Charger Charge Timer Smart Pwr. Selector Thermal Die Regulation Thermistor Input	I2C	2.7	5.5	5	17	0.5	0.5	1500	TQFN/40

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX14663ETL+	Active		TQFN,;40 pin;26 mm²	-40°C to +85°C	Lead Free

MAX14663.pdf MAX14663

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