NXP Semiconductors MC13892CJVLR2

Overview

MC13892CJVLR2 from NXP Semiconductors (formerly Freescale) is a highly integrated Power Management IC designed specifically for i.MX35 and i.MX51 application processors, featuring four adjustable buck regulators (up to 1050 mA), twelve LDOs, a 300 mA boost regulator, 10-bit ADC with coulomb counter, RTC with coin-cell backup, SPI/I²C interface, and touch screen controller. It powers netbooks, smart mobile devices, and portable navigation systems.

For engineers reviewing the MC13892CJVLR2 datasheet, MC13892CJVLR2 pinout, MC13892CJVLR2 application, or MC13892CJVLR2 equivalent, key selection considerations include its 139-pin 7×7 mm BGA package, -40°C to +85°C operating range, SMARTMOS process technology, and compatibility with i.MX27/31/37/51 processor families.

Technical Context

The MC13892CJVLR2 implements a multi-rail power architecture with four independent buck switchers (SW1–SW4), each supporting dynamic voltage scaling via dedicated DVS1/DVS2 inputs and programmable output voltages. Its integrated charger supports wall and USB charging with dual FET control (CHRGCTRL1/CHRGCTRL2), while the 10-bit ADC monitors battery voltage, temperature, and auxiliary inputs with coulomb counting capability.

It integrates a 32.768 kHz crystal oscillator with RTC block, real-time calendar functions, and coin-cell backup (LICELL). The device uses SPI as primary interface with optional I²C decode, supports multiple standby modes (e.g., RTC-only mode drawing 3 µA), and includes dedicated power gate drivers (PWGTDRV1/PWGTDRV2) for external FET control in system power sequencing.

Key Specifications

Pinout & Package

MC13892CJVLR2 is housed in a 139-pin 7×7 mm BGA package (VK suffix), optimized for high-density portable applications. Pin assignments follow the MC13892VK layout per Freescale Document Number MC13892 Rev. 19.0.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management applications.

Compared with MC34708CJVKR2 and PF0100ALTAAAR2, MC13892CJVLR2 offers unique coulomb counting, four-wire touch interface, and LEDKP/LEDMD drivers essential for legacy i.MX35/51-based portable devices - features absent in both alternatives.

Availability

MC13892CJVLR2 is available at Aetrix Electronics and suitable for smartphone power management, portable navigation devices, eBook readers, and industrial handheld terminals requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MC13892CJVLR2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and consumer applications, with roots in Freescale's analog and mixed-signal expertise.

The MC13892 product line was developed by Freescale (now NXP) to deliver complete, application-optimized power management for i.MX application processors - integrating regulation, battery charging, RTC, ADC, and user interface functions into a single SMARTMOS die.

FAQ

What is the operating temperature range for the MC13892CJVLR2?

The MC13892CJVLR2 operates across an industrial temperature range of -40°C to +85°C, validated per Freescale Document Number MC13892 Rev. 19.0. Its junction temperature rating extends to +125°C, and thermal resistance (RθJA) is specified at 104°C/W for single-layer PCBs - critical for thermal design in compact portable enclosures where the MC13892CJVLR2 manages multiple high-current rails.

Does the MC13892CJVLR2 support both SPI and I²C interfaces?

Yes, the MC13892CJVLR2 supports SPI as its primary serial interface (CS/CLK/MOSI/MISO), with optional I²C decode enabled automatically during boot if CS remains high. The device does not implement native I²C protocol but detects I²C address patterns on the SPI bus; configuration registers must be accessed via SPI commands regardless of detection mode. This dual-mode capability simplifies migration from I²C-based legacy designs without hardware changes to the MC13892CJVLR2 interface.

How does the coulomb counter function in the MC13892CJVLR2?

The MC13892CJVLR2 implements a hardware coulomb counter using the BATTISNSCC pin to accumulate charge flow through the battery path. It integrates current-sense amplifier outputs (BATTISNS, CHRGISNS) with a dedicated digital accumulator, accessible via SPI registers. The counter supports reset-on-full-charge and provides raw counts convertible to mAh using calibration factors stored in OTP - enabling accurate battery state-of-charge estimation without host processor overhead, a key feature distinguishing the MC13892CJVLR2 from simpler PMICs.

What are the key differences between the VK and VL package variants of the MC13892?

The MC13892CJVLR2 uses the VK package: a 139-pin 7×7 mm BGA. The VL variant is a larger 186-pin 12×12 mm BGA with different pin mapping (e.g., additional GNDSUB pins, relocated SWxFB signals) and lower thermal resistance (RθJA = 65°C/W). Functionally identical, the VK package targets space-constrained designs like smartphones, while VL suits thermal-heavy applications such as industrial terminals. Pin compatibility is not maintained between VK and VL - PCB redesign is required for substitution.

Can the MC13892CJVLR2 operate without a main battery connected?

Yes, the MC13892CJVLR2 supports coin-cell-only operation via the LICELL pin, enabling RTC and calendar functionality with <6 µA current draw in Power Cut Mode. In this state, the device disables all regulators except VSRTC and maintains real-time timekeeping using the internal 32.768 kHz oscillator. However, full system operation (e.g., powering i.MX51) requires either main battery (BATT) or external supply (BP/VINUSB2) - LICELL alone cannot drive buck regulators or LDOs.