ADM1184 Просмотр технического описания (PDF) - Analog Devices

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ADM1184

0.8% Accurate Quad Voltage Monitor

Analog Devices 

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADM1184

GND 1

10 VCC

VIN1 2

VIN2 3

VIN3 4

ADM1184

TOP VIEW

(Not to Scale)

9 OUT1

8 OUT2

7 OUT3

VIN4 5

6 PWRGD

Figure 2. Pin Configuration

Table 4. Pin Function Descriptions

Pin No. Mnemonic Description

1

GND

Chip Ground Pin.

2

VIN1

Noninverting Input of Comparator 1. The voltage on this pin is compared with a 0.6 V reference. Can be used to

monitor a voltage rail via a resistor divider.

3

VIN2

Noninverting Input of Comparator 2. The voltage on this pin is compared with a 0.6 V reference. Can be used to

monitor a voltage rail via a resistor divider.

4

VIN3

Noninverting Input of Comparator 3. The voltage on this pin is compared with a 0.6 V reference. Can be used to

monitor a voltage rail via a resistor divider.

5

VIN4

Noninverting Input of Comparator 4. The voltage on this pin is compared with a 0.6 V reference. Can be used to

monitor a voltage rail via a resistor divider.

6

PWRGD

Active High, Open-Drain Output. When the voltage on each VINx input exceeds 0.6 V, PWRGD is asserted after a

190 ms delay. Once PWRGD has been asserted, if the voltage monitored by VIN1, VIN2, VIN3, or VIN4 falls below 0.6 V,

the PWRGD output is deasserted immediately.

7

OUT3

Active High, Open-Drain Output. When the voltage on VIN3 exceeds 0.6 V, OUT3 is asserted. OUT3 remains asserted

until the voltage monitored by VIN3 falls below 0.6 V, and then it is driven low.

8

OUT2

Active High, Open-Drain Output. When the voltage on VIN2 exceeds 0.6 V, OUT2 is asserted. OUT2 remains asserted

until the voltage monitored by VIN2 falls below 0.6 V, and then it is driven low.

9

OUT1

Active High, Open-Drain Output. When the voltage on VIN1 exceeds 0.6 V, OUT1 is asserted. OUT1 remains asserted

until the voltage monitored by VIN1 falls below 0.6 V, and then it is driven low.

10

VCC

Positive Supply Input Pin. The operating supply voltage range is 2.7 V to 5.5 V.

Rev. 0 | Page 5 of 12

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