ADM1192 Analog Devices, ADM1192 Datasheet - Page 6

• Manufacturer Part Number: ADM1192
• Description: Digital Power Monitor with Clear Pin and ALERT Output
• Manufacturer: Analog Devices

Specifications of ADM1192

• Max Pos Supply (v): +26V
• Current Monitoring: 2
• Glitch Filter: Programmable Timer
• Clrb Pin: X
• Alert/alertb: ALERT
• Number Of I2c Addresses: 4
• Package: MSOP

ADM1192
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
Mnemonic
VCC
SENSE
SETV
GND
TIMER
SCL
SDA
ADR
CLRB
ALERT
Description
Positive Supply Input Pin. The operating supply voltage range is 3.15 V to 26 V. An undervoltage lockout (UVLO)
circuit resets the ADM1192 when a low supply voltage is detected.
Current Sense Input Pin. A sense resistor between the VCC pin and the SENSE pin generates a voltage across
a sense resistor. This voltage is proportional to the load current. A current sense amplifier amplifies this
voltage before it is digitized by the ADC.
Input Pin. The voltage driven onto this pin is compared with the output of the internal current sense amplifier.
The lower the voltage on the SETV, the lower the current level that causes the ALERT output to assert.
Chip Ground Pin.
Timer Input Pin. An external capacitor, C
timing period should be sufficient to allow the inrush current to completely charge up the load without
tripping an overcurrent fault. This makes the device robust against false triggering due to current transients.
I
I
I
addresses.
Clear Pin. A latched overcurrent condition can be cleared by pulling this pin low.
Alert Output Pin. Active high, open-drain configuration. This pin asserts high when an overcurrent condition
is present. The level at which an overcurrent condition is detected depends on the voltage on the SETV pin.
2
2
2
C Clock Pin. Open-drain input; requires an external resistive pull-up.
C Data I/O Pin. Open-drain input/output; requires an external resistive pull-up.
C Address Pin. This pin can be tied low, tied high, left floating, or tied low through a resistor to set four I
SENSE
TIMER
SETV
GND
VCC
Figure 3. Pin Configuration
1
2
3
4
5
Rev. B | Page 6 of 20
(Not to Scale)
ADM1192
TOP VIEW
TIMER
, sets the timing period for masking overcurrent conditions. This
10
9
8
7
6
ALERT
CLRB
ADR
SDA
SCL
2
C