Pin Configuration And Function Descriptions; Changes To Table 5 - Analog Devices AD5100 Manual

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Table 5. AD5100 Pin Function Descriptions
Pin No. Mnemonic Description
1 V High Voltage Monitoring Input. AD5100 internal supply is derived from V
1MON
capacitor between this pin and GND, placed as close as possible to the V
2 GND Ground.
3 V One-Time Programmable Supply Voltage for EPROM. A 10 μF decoupling capacitor (low ESR) to GND is required.
OTP
4 V Low Voltage Monitoring Input.
3MON
5 Manual Reset Input. Active low.
MR
6 WDI Watchdog Input.
7 SCL I 2 C Serial Input Register Clock. Open-drain input. If it is driven directly from a logic driver without the pull-up
resistor, ensure that the V
2
8 SDA I C Serial Data Input/Output. Open-drain input/output. If it is driven directly from a logic driver without the pull-
up resistor, ensure that the V
9 RESET Reset. Push-pull output with rail voltage of V
10 V Open-Drain Output. Triggered by V
4OUT
11 SHDNWARN Shutdown Warning. Active low, open-drain output.
12 SHDN Shutdown Output. Push-pull output with selectable rail voltage of V
maximum).
13 AD0 I 2 C Slave Address Configuration. If tied high, this pin can only be tied to 3.3 V maximum.
14 V Low Voltage Monitoring Input. Capable of withstanding 30 V.
4MON
15 GND/NC Ground/No Connect. Can be grounded or left floating but do not connect to any other potentials.
16 V High Voltage Monitoring Input. It is also the internal supply voltage enabling input.
2MON
V
1
1MON
GND
2
V
3
OTP
AD5100
V
4
3MON
TOP VIEW
MR
5
(Not to Scale)
WDI
6
SCL
7
SDA
8
NC = NO CONNECT
Figure 3. Pin Configuration
minimum is 3.3 V.
IH
minimum is 3.3 V.
IH
.
4MON
GND
1
2
3
AD5100
4
TOP VIEW
5
(Not to Scale)
6
7
8
Figure 4. Recommended PCB Layout for Shielded High Voltage Inputs
Rev. A | Page 9 of 36
V
16
2MON
GND/NC
15
V
14
4MON
AD0
13
SHDN
12
SHDNWARN
11
V
10
4OUT
RESET
9
1MON
1MON
.
3MON
or V
1MON
16
15
14
13
12
11
10
9
AD5100
. There must be a 10 μF electrolytic
pin.
, the AD5100 internal power (30 V
REG