TPS652170 User programmable power management IC (PMIC) w/ 3 DC/DCs, 4 LDOs, battery charger & LED driver | TI.com

TPS652170 (ACTIVE) User programmable power management IC (PMIC) w/ 3 DC/DCs, 4 LDOs, battery charger & LED driver

 

Description

The TPS652170 is a single-chip power management IC (PMIC) specifically designed to power the AM335x ARM® Cortex®-A8 processor in portable and 5-V line-powered applications. The PMIC device provides a linear battery charger for single-cell Li-ion and Li-polymer batteries, dual-input power path, three step-down 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 supplied by any combination of USB port, 5-V AC adaptor, or Li-Ion battery. The device is characterized across a –40°C to +105°C temperature range which makes it suitable for industrial applications. Three high-efficiency 2.25-MHz step-down converters can providing the core voltage, memory, and I/O voltage for a system. The TPS652170 device comes in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.

Features

  • Charger and power path
    • 2-A output current on power path
    • Linear charger; 700-mA maximum charge current
    • 20-V tolerant USB and AC inputs
    • Thermal regulation, safety timers
    • Temperature sense input
  • Step-down converter (DCDC1, DCDC2, DCDC3)
    • Three step-down converter with integrated switching FETs
    • 2.25-MHz fixed frequency operation
    • Power-save mode at light-load current
    • Output voltage accuracy in PWM mode ±2%
    • 100% duty cycle for lowest dropout
    • Typical 15-µA quiescent per converter
    • Passive discharge to ground when disabled
  • LDO regulators (LDO1, LDO2)
    • Two adjustable LDOs
    • LDO2 can be configured to track DCDC3
    • Typical 15-µA quiescent current
  • Load switches (LDO3, LDO4)
    • Two independent load switches that can be configured as LDOs
  • WLED driver
    • Internally generated PWM for dimming control
    • 38-V open-LED protection
    • Supports two strings of up to 10 LEDs at 25 mA each
    • Internal low-side current sinks
  • Protection
    • Undervoltage lockout and battery fault comparator
    • Always-on push-button monitor
    • Hardware reset pin
    • Password protected I2C registers
  • Interface
    • I2C interface (address 0x24)
    • Password-protected I2C registers

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Parametrics

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Part number Order Regulated outputs (#) Processor supplier Processor name Vin (Min) (V) Vin (Max) (V) Step-up DC/DC controller Step-down DC/DC controller LDO Step-up DC/DC converter Step-down DC/DC converter Iout (Max) (A) Iq (Typ) (mA) Features Shutdown current (Typ) (uA) Rating Operating temperature range (C) Configurability Package Group Package size: mm2:W x L (PKG)
TPS652170 Order now 9     Texas Instruments
Generic    
AM335x
Generic    
2.75     5.8     0     0     4     1     4     1.2     0.08     Comm Control
Dynamic Voltage Scaling
I2C Control
Power Good
Power Sequencing    
6     Catalog     -40 to 105     Customer programmable     VQFN | 48     48VQFN: 36 mm2: 6 x 6 (VQFN | 48)    
TPS65217 Order now 9     Texas Instruments     AM335x     2.75     5.8     0     0     4     1     4     1.2     0.08     Comm Control     6     Catalog     -40 to 105     Factory programmable
Software configurable    
VQFN | 48     48VQFN: 36 mm2: 6 x 6 (VQFN | 48)