TYPICAL APPLICATIONS
TYPICAL APPLICATIONS
Figure 35 contains a typical application of the MC13892. For convenience, components for use with the 13892 are cited within
this document. Freescale does not assume liability, endorse, or warrant components from external manufacturers that are
referenced in circuit drawings or tables. While Freescale offers component recommendations in this configuration, it is the
customer’s responsibility to validate their application.
From Extenal Boost
Charger/USB Input
Tied to
(Tied to VBUS)
BATTISNSCC
BP
R1
20m
R2
100m
M3
M2
M1
2.2u
SWBST
Main
10u
10u
Battery
SW3
Processor
Internal
Memory
User Off
To 1.2V
Peripherals
Charger Interface and Control:
4 bit DAC, Clamp, Protection,
Trickle Generation
Battery Interface &
Protection
SW4
PWGTDRV1
PWGTDRV2
Tri-Color
LED Drive
Backlight
LED Drive
PWR Gate
Drive & Chg
Pump
To Memory
User Off, Memory Hold
SW1
Output
To 1.8V
Peripherals
BP
LICELL, UID, Die Temp, GPO4
4.7u
Voltage /
Current
Sensing &
Translation
GNDADC
SW1IN
1.5u
2 x22u
O/P
Drive
SW1OUT
GNDSW1
SW1FB
SW1
1050 mA
Buck
SW2
Output
ADIN5
ADIN6
General Purpose ADC Inputs:
i.e., Battery pack thermistor,
PA thermistor, Light Sensor, Etc.
BP
BP
4.7u
4.7u
4.7u
2.2u
SW2IN
10u
ADIN7
TSX1
O/P
Drive
SW2OUT
GNDSW2
SW2FB
10 Bit GP
ADC
A/D Result
SW2
800 mA
Buck
SW3
Output
MUX
TSX2
TSY1
Touch
Screen
Interface
2.2u
A/D
Control
SW3IN
Touch
Screen
Interface
10u
O/P
Drive
SW3OUT
GNDSW3
SW3FB
SW3
800 mA
Buck
TSY2
SW4
Output
Trigger
Handling
Die Temp &
Thermal Warning
Detection
TSREF
To Interrupt
Section
BP
2.2u
SW4IN
10u
ADTRIG
From AP
O/P
Drive
SW4OUT
GNDSW4
SW4FB
SW4
800 mA
Buck
From M3/R1 connection
(needs to be separate route from
BATTISNS)
BATTISNSCC
CFP
BATT
Coulomb
Counter
DVS1
DVS2
CCOUT
BP
From AP
From AP
4.7u
DVS
CONTROL
To SPI
10uF
CFM
2.2u
SWBST
Output
(Boost)
Package Pin Legend
SWBSTIN
SWBSTOUT
SWBSTFB
GNDSWBST
Output Pin
O/P
Drive
BP
SWBST
300 mA
Boost
MC13892
IC
Input Pin
10u
SPIVCC
Shift Register
Bi-directional Pin
SW4
CS
SPI
Interface
+
Muxed
I2C
CLK
SPI
BP
AP CSPI
To Enables & Control
MOSI
MISO
SPI Control
Registers
VVIDEODRV
VVIDEO
Optional
Interface
VVIDEO
VUSB2
GNDSPI
2.2u
Shift Register
VINUSB2
VUSB2
2.2u
BP
BP
Pass
FET
2.2u
VIINAUDIO
VAUDIO
VCORE
2.2u
Pass
FET
VAUDIO
VCOREDIG
MC13892
Reference
Generation
2.2u
REFCORE
GNDCORE
VINIOHI
VIOHI
BP 2.2u
Pass
FET
VVIOHI
VPLL
100n
VINPLL
VPLL
2.2u
2.2u
Pass
FET
BP
BP
BP
VINDIG
VDIG
UID
Pass
FET
VDIG
VCAM
VSD
To/From
USB Cable
VBUS/ID
Detectors
ID
UVBUS
CHRGRAW
VINCAMDRV
Pass
FET
2.2u
BP
VCAM
VSDDRV
VSD
VBUSEN
OTG
5V
From AP
SWBST
2.2u
BP
To
SPI
Trim-In-Package
Trimmed
Circuits
VUSB
Regulator
Control
Logic
VGEN1DRV
VGEN1
VINUSB
VUSB
VGEN1
VGEN2
BP
2.2u
2.2u
VGEN2DRV
VGEN2
Startup
Sequencer
Decode
Trim?
Control
Logic
PUMS
PLL
Switchers
BP
2.2u
VINGEN3DRV
VGEN3
Monitor
Timer
Pass
FET
VGEN3
BP
LCELL
Switch
RTC +
Calibration
32 KHz
Internal
Osc
LICELL
2.2u
Coin Cell
Battery
100n
SPI Result
Registers
Interrupt
Inputs
Enables &
Control
Li Cell
Charger
32 KHz
Buffers
Best
of
Supply
GNDREG1
GNDREG2
GNDREG3
GPO
Control
32 KHz
Crystal
Osc
Core Control Logic, Timers, & Interrupts
VSRTC
1.0u
To GND,
Open,
VCOREDIG
or VCORE
To/From
AP
To/From
Peripherals
To/From
AP
18p
18p
32.768 KHz
Crystal
On/Off
Button
Figure 35. 13892 Typical Application
13892
Analog Integrated Circuit Device Data
Freescale Semiconductor
150
FREESCALE [ Freescale ]
