Datasheet

Signal Descriptions
MC13783 Technical Data, Rev. 3.5
6 Freescale Semiconductor
1.5 Miscellaneous Functions
The drivers and comparators for a USB On-the-Go and a CEA-936-A compatible USB carkit including
audio routing, as well as RS232 interfaces are provided. Special precautions are taken to allow for specific
booting and accessory detection modes.
Current sources are provided to drive tricolored funlights and signaling LEDs. The funlights have
preprogrammed lighting patterns. The wide programmability of the tricolored LED drivers allows for
applications such as audio modulation. Three backlight drivers with auto dimming are included as well for
keypad and dual display backlighting.
A dedicated interface in combination with the A to D converter allow for precise resistive touchscreen
reading. Pen touch wake up is included.
2 Signal Descriptions
The below pinout description gives the pin name per functional block with its row-column coordinates, its
maximum voltage rating, and a functional description.
Table 1. Pinout Listing
Pin Location Rating* Function
Charger
CHRGRAW A18
A19
B19
EHV 1. Charger input
2. Output to battery supplied accessories
CHRGCTRL C18 EHV Driver output for charger path FETs M1 and M2
BPFET B15 EHV 1. Driver output for dual path regulated BP FET M4
2. Driver output for separate USB charger path FETs M5 and M6
CHRGISNSP B17 MV Charge current sensing point 1
CHRGISNSN C14 MV Charge current sensing point 2
BP B13 MV 1. Application supply point
2. Input supply to the MC13783 core circuitry
3. Application supply voltage sense
BATTFET A12 MV Driver output for battery path FET M3
BATTISNS A14 MV Battery current sensing point 1
BATT D15 MV 1. Battery positive terminal
2. Battery current sensing point 2
3. Battery supply voltage sense
CHRGMOD0 D17 LV Selection of the mode of charging
CHRGMOD1 A16 LV Selection of the mode of charging
* The maximum voltage rating is given per category of pins:
• EHV for Extended High Voltage (20 V)
• HV for High Voltage (7.5 V)
• EMV for Extended Medium Voltage (5.5 V)
• MV for Medium Voltage (4.65 V)
• LV for Low Voltage (3.1 V)