### DC1605B - Schematic

```-
V1
JP1
3 OPTIONS:
JUMPER "INT 5V" FOR INTERNAL POWER,
JUMPER "EXT 3.3V" TO APPLY EXTERNAL 3.3V POWER,
REMOVE JUMPER FOR EXTERNALLY APPLIED 3.4V-13.9V SUPPLY ON TURRET
1
2
3
6V MAX
DAC_CH1
2
R1
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
20K
VPWR
3
4
+3V3
JP9
10K
C1
10nF
1. RESISTORS R1-R6 +/-25ppm. ALL OTHER RESISTORS
ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. INTERNAL POWER FOR ADC/DAC/LEDs IS 5.0V
+5V
DIVIDE BY 3
1
2
3
1
+3.3V OUT
Test Point
INT 5V
EXT 3.3V
GND
JP2
C7
100nF
V2
DAC_CH2
1
2
R2
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
C35
100nF
20K
3
4
DIVIDE BY 3
U1
LTC2936_SSOPGN
4 VPWR
3 V1
2 V2
1 V3
24 V4
23 V5
22 V6
GND
10K
C2
10nF
1
GND
JP3
21 GPI1
20 GPI2
V3
1
2
3
6V MAX
DAC_CH3
9 ASEL1
8 ASEL0
20K
3
4
DIVIDE BY 3
10K
C3
10nF
1
JP8
GND
+3V3
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
+3V3
2
R3
1
2
3
4
1
2
3
4
JP7
GND
R13
10k
VDD33 5
LED4
R14
10k
2
1
2
3
6V MAX
R60
1.5k
R61
200k
14V MAX
13
12
11
10
15
14
GND
1
2
3
C12
10nF
R20
604k
0x50 if ASEL1/0=low/low (default)
0x51 if ASEL1/0=low/float
0x52 if ASEL1/0=low/high
See demo manual for other combinations.
R23
100k
C13
10nF
GND
6V MAX
GPI1
6V MAX
20K
3
4
GPIO3
R15
402k
DIVIDE BY 3
14V MAX
10K
C4
10nF
C8
10nF
1
GND
SW1
GND
R17
200k
C10
10nF
GND
JP5
GND
V5
1
2
3
R24
100k
C14
10nF
6V MAX
20K
R16
402k
3
4
DIVIDE BY 3
10K
C5
10nF
GPI2
2
R5
R21
604k
GND
6V MAX
DAC_CH5
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
R22
100k
14V MAX
2
R4
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
GPIO2
GND
V4
DAC_CH4
R19
604k
GND
GND 6
JP4
SCL
GPIO1
GPIO1 17
GPIO2 16
GPIO3 7
CMP1
CMP2
CMP3
CMP4
CMP5
CMP6
SDA
I2C_SCL
R62
100k
GREEN
GND
SDA 18
SCL 19
I2C_SDA
C9
10nF
1
GND
GND
JP6
SW2
GND
R18
200k
JP10
1
2
3
4
5
6
C11
10nF
CMP1
CMP2
CMP3
CMP4
CMP5
CMP6
GND
V6
1
2
3
6V MAX
DAC_CH6
2
R6
MOVE JUMPER TO "EXT" WHEN
APPLYING EXTERNAL VOLTAGE
CUSTOMER NOTICE
20K
3
4
DIVIDE BY 3
PCB DES.
APP ENG.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
M.P.
www.linear.com
M.P.
LTC2936 PROGRAMMABLE HEX VOLTAGE
SUPERVISOR WITH EEPROM
10K
C6
10nF
1
B
GND
SCALE = NONE
LTC2936
Demo Circuit 1605B
1
MIKE P.
-
*** Slave Address 0x14 (default) ***
CA2=low, CA1=low, CA0=low
GND
COM
REF+
REF-
29
30
35
MUXOUTP
MUXOUTN
25
24
27
26
SDA
SCL
CA2
CA1
CA0
3
2
38
37
36
NC
5
C15
100nF
+5V
GND
VREF
U3
LTC6078
C16
100nF
GND
V+
3
2
+INA
*** Slave Address 0x22 (default) ***
CA2=low, CA1=high, CA0=low
C28
100nF
8
VCC
F0
GND
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
OUTA
1
ZERO OHM, 4X
R39
6
5
U4
LTC2637CMS
1k
-INA
-INB
OUTB
7
C19
10nF
R59
GND
1k
+INB
V-
+5V
R31
OPT
R32
OPT
R33
OPT
R34
0
R35
0
R36
0
C17
100nF
C27
10nF
GND
DAC_CH1
+5V
GND
R58
GND
1 VCC
11 REF
VREF
C18
100nF
9 SDA
8 SCL
6 CA2
10 CA1
7 CA0
GND
GND
DAC_CH2
DAC_A
DAC_B
DAC_C
DAC_D
2
3
4
5
DAC_E
DAC_F
DAC_G
DAC_H
12
13
14
15
DAC_CH3
DAC_CH4
DAC_CH5
DAC_CH6
16 GND
GND
1
4
6
31
32
33
34
39
7
+5V
28
4
U2
LTC2499
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DAC Section
+5V
GND
R49
OPT
R50
0
R51
OPT
R52
0
R53
OPT
R54
0
R40
ZERO OHM, 4X
GND
4.096V Ref
DO NOT INSTALL:
R31, R32, R33
U5
LT6654
1 GND VOUT 6
R38
0 ohm
DO NOT INSTALL:
R49, R51, R53
GND
VREF
2 GND DNC 5
3 DNC
R37
0 ohm
I2C_SDA
C21
1uF
+5V
VIN 4
I2C_SCL
GND
GND
C20
1uF
5V LDO to power board
when +12V power present
Diode-OR
U8
LTC4415IMSE
2 GND
1210
3 SHDN BYP 4
C34
10nF
0805
+5V (100mA)
1
SDA
2
GND
3
SCL
4
+3.3V(100mA) 5
6
GPO_1
7
OUTEN
8
GPO_2
9
GND
10
AUXSCL
11
AUXSDA
12
GND
GND
R41
10k
R42
10k
GND
GND
1k
R46
16
15
14
13
12
11
10
9
+5V
C24
10uF/16V
R48
3.01k
0805
GND
LED5
GREEN
GND
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. INTERNAL POWER FOR ADC/DAC/LEDs IS 5.0V
GND
C25
1uF
WP 5
2 GND
3 SDA
OUT1
OUT1
STAT1
WARN1
WARN2
STAT2
OUT2
OUT2
GND
U7
24AA02
1 SCL
CONN_DC1613
249
9.31k
I2C_SDA
I2C_SCL
GND
IN1
IN1
EN1
CLIM1
CLIM2
EN2
IN2
IN2
R47
J1
R45
C33
GND
10k
GND
R44
GND
C23
10uF/16V
1
2
3
4
5
6
7
8
2
C22
22uF/25V
49.9k
OUT 5
R43
1 IN
100nF
1
3
2
1
U6
LT1761-5
EXP GND
GND
+12V
R63
200k
GND
VCC 4
C26
100nF
GND
R65
200k
R66
100k
R64
100k
CUSTOMER NOTICE
PCB DES.
APP ENG.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
M.P.
www.linear.com
M.P.
LTC2936 PROGRAMMABLE HEX VOLTAGE
SUPERVISOR WITH EEPROM
GND
GND
B
SCALE = NONE
LTC2936
Demo Circuit 1605B
1
-
LEDs for CMP Pins
R9
10k
+5V
R7
3k
1
6 4
1
4
R78
10k
R68
1k
R76
3k
R77
1k
3
1
R67
3k
3 2
5
GND
Q9
2N7002DWA
2
1
CMP6
4
Q6
2N7002DWA
2
RED
6 4
LED11
BLUE
6 4
3 2
5
RED
1
CMP3
4
1
GND
6 4
3 2
3 2
6 4
1
GND
LED8
BLUE
Q3
2N7002DWA
Q8
2N7002DWA
2
1
R69
10k
6 4
3 2
5
3
R30
1k
2
4
5
R74
1k
+5V
LED3
GPIO3
CMP5
RED
GND
3
1
Q5
2N7002DWA
+5V
R29
3k
RED
R73
3k
LED10
BLUE
2
4
5
+5V
BLUE
R75
10k
R11
1k
3
1
CMP2
RED
GND
R57
10k
4
+5V
R10
3k
3 2
3 2
6 4
Q2
2N7002DWA
2
4
5
GND
LED7
BLUE
1
GPIO2
Q7
2N7002DWA
2
1
R12
10k
R28
1k
3
R27
3k
RED
5
+5V
LED2
BLUE
CMP4
GND
+5V
1
Q4
2N7002DWA
RED
3
GND
R56
10k
R71
1k
LED9
BLUE
2
4
5
RED
1
CMP1
3 2
3 2
6 4
Q1
2N7002DWA
2
4
5
R70
3k
LED6
BLUE
1
GPIO1
RED
6 4
LED1
BLUE
R72
10k
R8
1k
3
R26
1k
3
1
R25
3k
1
R55
10k
+5V
1
+5V
3
LEDs for GPIO Pins
GND
CUSTOMER NOTICE
PCB DES.
APP ENG.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
M.P.
www.linear.com
M.P.
LTC2936 PROGRAMMABLE HEX VOLTAGE
SUPERVISOR WITH EEPROM
B
SCALE = NONE
LTC2936
DEMO CIRCUIT 1605B
```