Datasheet

LTC2970/LTC2970-1
11
29701fc
BLOCK DIAGRA
W
20GPIO_CFG
17ALERT
15GPIO_1
16GPIO_0
21ASEL1
22ASEL0
19SDA
18SCL
23REF
24RGND
8V
IN1_BM
7V
IN1_BP
6V
IN1_AM
5V
IN1_AP
4V
IN0_BM
3V
IN0_BP
2V
IN0_AM
1V
IN0_AP
25GND
1012V
IN
9V
DD
V
DD
29701 BD
IDAC0
8 BITS
2
14 I
OUT0
11 V
OUT0
18
7
IDAC1
8 BITS
13 I
OUT1
12 V
OUT1
–
+
–
+
RAM
POR
ADC_Results
MONITOR LIMITS
SERVO TARGETS
REFERENCE
1.229V (TYP)
CLOCK
GENERATION
OSCILLATOR
3.5k
20Ω
R
2R
6.65X
(TYP)
DAC SOFT CONNECT FUNCTION
SERVO FUNCTION
MONITOR FUNCTION
MANAGE FAULT REPORTING
WATCH DOG
TRACKING CONTROL (LT2970-1)
SERVO CONTROLLER
I
2
C BUS INTERFACE
(400kHz, SMBUS COMPATIBLE)
7:1 MUX
REGISTERS
I/O CONFIGURATION
IDAC0
IDAC1
ADC MONITOR
FAULT ENABLE
INSTANTANEOUS FAULTS
LATCHED FAULTS
POR
POR
V
OUT
V
IN
5V REGULATOR
12V
P
12V
M
V
DDP
V
DDM
TSNSP
TSNSM
CH0_AP
CH0_AM
CH0_BP
CH0_BM
CH1_AP
CH1_AM
CH1_BM
CH1_BP
V
DD
ADC
CLOCKS
UVLO
TEMP
SENSOR
V
DD
14-BIT
DELTA-SIGMA
A/D
–
+
–
+
–
+
0μA TO 255μA
0μA TO 255μA
CMP0
VBUF0
CMP1
VBUF1