TYPICAL APPLICATIONS
TYPICAL APPLICATIONS
HVB
VBATT
VMODE
VBATT
VBATT
LVB
LVB
Driver
VMODE
VO1_SENSE
PGOOD1(Int)
VO1_SENSE
V_STDBY
VOUT1
VREF
PGOOD1(Int)
CLEAR
VREF
BANDGAP
REFERENCE
VGATE
LSWO
VO1_SENSE
PGOOD1(Int)
VO1_SENSE
POWER
SWITCH1
VO1_SENSE
VGATE
VO1_SENSE
VIN1
PGOOD1
PGOOD1_DELAY
PGOOD1(Int)
REF1
RESET
Block 1
Step-UpDown
DC/DC
VBATT
VO1_SENSE
SW1
Converter
CH1
RESET1_TH
EAIN1
PGND1
EAOUT1
VREF
VGATE
PGOOD1_DELAY
or
PGOOD2_DELAY
VOUT2
DMAX1
POWER
PGOOD2(Int)
VGATE
VO2_SENSE_IN
VO2_SENSE
VO1_SENSE
PGOOD2
SWITCH2
VO1_SENSE
PGOOD2(Int)
VBATT
HG
LG
RESET
Block 2
REF2
PGOOD2_DELAY
EAOUT2
Step-UpDown
DC/DC
Converter
VIN2
CH2
SW2
EAIN2
VREF
DMAX2
PGND2
SREGI1
VGATE
SREGO1
REF3
Series Pass
Regulator1
SREGC1
SREGO1
SREG12
SREGO2
VGATE
SREGC2
SREGC3
Series Pass
Regulator2
SREGO3
REF4
SREGO2
V_STDBY
SREG2G
SREGI3
VGATE
VO1_SENSE
VBATT
WAKE1B
WAKE2B
Series Pass
Regulator3
REF5
WAKE3B
SREGO3
VBATT
WAKE4B
SEQ_SELECT
DATA
EXT_CLOCK
CPoff
PGOOD1(Int)
PGOOD2
CH_PUMP
VGATE
STRB
VO1_SENSE
VBATT
CONTROL (Int)
VGATE
SEQ_SELECT
SCKIN
CLEAR
SLEEP
Control
Logic
VBATT
Step-Up
DC/DC
Convertor
VG_select
VG_duty
SWGATE
EXT_CLOCK
GNDGATE
GND
VGATE
REF2
REF1
REF4
VGATESEL1
VGATESEL2
REF3
REF5
EXT gate
On
Buffer
VGATE_EXT
On
WATCHDOG
REF DAC
VREF
Figure 12. MPC18730 Typical Application Diagram (Ni-MH Battery)
18730
Analog Integrated Circuit Device Data
Freescale Semiconductor
28