SMM665B
Preliminary Information
INTERNAL FUNCTIONAL BLOCK DIAGRAM
12VIN
VDD
VDD_CAP
PWR_ON/OFF FS
3.6V or
5.5V
Power Supply
Arbitrator
VREF_ADC
AIN1
PUPA
PUPB
PUPC
PUPD
PUPE
PUPF
Regulator
UVLO
AIN2
Cascade
Sequence
Control
Control
Temperature
Sensor
VMA
10-Bit ADC
CAPA
VMF
MR
CAPF
RST
Output
Control
HEALTHY
FAULT
TRIMA
TRIM_CAPA
SDA
SCL
A2
Active DC
Control
Memory, Limit
I2C
and Status
Registers
(ADOCTM
)
Interface
TRIMF
TRIM_CAPF
VREF_CNTL
FILT_CAP
GND
Figure 3 – SMM665B Internal Functional Block Diagram.
Summit Microelectronics, Inc
2089 1.1 10/20/04
3