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ConnectCore ? f or ? i .M X 5 1 ?
+1 . 8V
This supply is generated on the internal regulator of the PMIC. The maximum current
provided by this supply is 250mA.
+3 . 15 V
This supply is used on the module to power the NAND Flash interface and the SD-card 1
interface. The maximum current provided by this supply is 350mA.
The current available to supply off-module components is 300mA.
MC13892 Power Management
The ConnectCore for i.MX51 module is designed with Freescale MC13892 Power Management
chip. This chip provides reference and supply voltages for the i.MX51 as well as for the
peripheral devices. The MC13892 has four buck switchers, one +5V boost switcher and twelve
low dropout regulators as well as other user interfaces. The following figure shows the block
diagram of the MC13892.
MC13892
Battery
Management
10 Bit ADC
Touch Screen
Interface
4 Buck
Switchers
Bias &
References
12 LDO
Regulators
+5V Boost
Switcher
Backlight
Drivers
LED
Drivers
Power
Control Logic
32.768KHz
? ? 2011 ? Digi ? International, ? Inc.
Processor Logic Interfacing
Control
Interface
???? ? 33
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