Functional diagram – Rainbow Electronics MAX6871 User Manual
Page 12
MAX6870/MAX6871
EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
12
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ADC
TIMING
SERIAL
INTERFACE
MAX6870
MAX6871
1.25V
V
REF
IN2 DETECTOR
IN_ DETECTOR
IN1
IN2
IN3
IN4
AUXIN1
AUXIN2
IN5
(N.C.)
IN6
(N.C.)
IN3 DETECTOR
IN4 DETECTOR
IN5 DETECTOR
IN6 DETECTOR
PROGRAMMABLE
ARRAY
TIMING BLOCK 2
TIMING BLOCK 3
TIMING BLOCK 4
TIMING BLOCK 5
TIMING BLOCK 6
TIMING BLOCK 7
TIMING BLOCK 8
PO2 OUTPUT
PO3 OUTPUT
PO4 OUTPUT
PO5 OUTPUT
PO6 OUTPUT
PO7 OUTPUT
PO8 OUTPUT
ADC
REGISTERS
TIMING BLOCK 1
V
ABP
+ 5V
CHARGE PUMP*
MUX
GPI1
GPI2
GPI3
GPI4
MARGIN
MR
IN3–IN6
(IN3–IN4)
PO_
OUTPUT
*PO1–PO4 ONLY
(PO1, PO2)
ABP
MUX
P1**
10k
Ω
PO1
PO2
PO3
PO4
PO5
PO6
(N.C.)
PO7
(N.C.)
PO8
(N.C.)
SDA
SCL
A0
A1
OPEN-
DRAIN
** PO5–PO8 ONLY
(PO3, PO4, PO5)
ADC
MUX
MAIN
OSCILLATOR
IN1
IN2
IN3
IN4
IN5
IN6
AUXIN1
AUXIN2
EEPROM
CHARGE PUMP
CONFIG
REGISTERS
CONFIG
EEPROM
USER
EEPROM
1
µF
ABP
DBP
1
µF
2.55V
LDO
5.4V
LDO
(VIRTUAL
DIODES)
REFIN
GND
( ) ARE FOR MAX6871 ONLY.
ADC
Functional Diagram