Shenzhen Harmony F...

  • 2022-09-24 21:11:22

Shenzhen Harmony Family Spot Supply TexasInstrumentsTPS652170

Texas Instruments TPS652170 Single-Chip Power Management IC (PMIC) is specifically designed to power AM335x ARM® Cortex®-A8 processors in portable and 5V line-powered applications. The PMIC device contains a linear battery charger (supporting single-cell Li-Ion and Li-polymer batteries), dual input power paths, three buck converters, four low dropout (LDO) regulators, and a high-efficiency boost Converter to power two strings of up to 10 LEDs each. The system can be powered by any combination of USB ports, 5V AC adapters, or Li-Ion batteries.

The TPS652170 is rated to operate from -40°C to +105°C, making it ideal for industrial applications. Three high-efficiency 2.25MHz step-down converters provide the core voltage, memory and I/O voltages for the system. The TPS652170 device is available in a 48-pin leadless package (6mm × 6mm VQFN) with 0.4mm pitch.

characteristic

Charger and Power Path

2A output current on power path

Linear charger; 700mA maximum charge current

20V tolerant USB and AC input

Thermal regulation, safety timer

Temperature detection input

Buck Converters (DCDC1, DCDC2, DCDC3)

Three Buck Converters with Integrated Switching FETs

Fixed operating frequency: 2.25MHz

Power Save Mode at Light Load Current

The output voltage accuracy in PWM mode is ±2%_

100% duty cycle for lowest voltage drop

Typical quiescent current per converter is 15µA

Supports passive ground discharge when disabled

LDO regulators (LDO1, LDO2)

Two adjustable LDOs

LDO2 can be configured to track DCDC3

Typical Quiescent Current: 15μA

Load switch (LDO3, LDO4)

Two independent load switches, configurable as LDOs

WLED driver

Internally generated PWM supports dimming control

38V open LED protection

Supports two LED strings (up to 10 LEDs per string, 25mA per LED)

Internal low-side current sink

Protect

Undervoltage Lockout and Battery Fail Comparator

Normally Open Button Monitor

hardware reset pin

Password protected I2C registers

interface

I2C Interface (Address 0x24)

Password protected I2C registers

application

Sitara™ AM335x processor power supply

Portable Navigation System

tablet

5V Industrial Equipment