ADM1026JSTZ View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

ADM1026JSTZ

Complete Thermal System Management Controller

ON Semiconductor 

ADM1026

Table 1. ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Unit

Positive Supply Voltage (VCC)

Voltage on +12 VIN Pin

Voltage on −12 VIN Pin

Voltage on Analog Pins

Voltage on Open-drain Digital Pins

Input Current at Any Pin

6.5

V

+20

V

−20

V

−0.3 to (VCC + 0.3)

V

−0.3 to +6.5

V

5

mA

Package Input Current

20

mA

Maximum Junction Temperature (TJMAX)

Storage Temperature Range

150

C

−65 to +150

C

Lead Temperature, Soldering

Vapor Phase (60 sec)

Infrared (15 sec)

C

215

200

ESD Rating

−12 VIN Pin

All Other Pins

V

1000

2000

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.

Table 2. THERMAL CHARACTERISTICS

Package Type

48-lead LQFP

qJA

qJC

Unit

50

10

C/W

Table 3. PIN ASSIGNMENT

Pin No.

Mnemonic

1

GPIO9

2

GPIO8

3

FAN0/GPIO0

Type

Digital I/O†

Digital I/O†

Digital I/O

4

FAN1/GPIO1

Digital I/O

5

FAN2/GPIO2

Digital I/O

6

FAN3/GPIO3

Digital I/O

7

3.3 V MAIN

Analog Input

8

DGND

Ground

9

FAN4/GPIO4

Digital I/O

10

FAN5/GPIO5

Digital I/O

11

FAN6/GPIO6

Digital I/O

12

FAN7/GPIO7

Digital I/O

13

SCL

Digital Input

14

SDA

Digital I/O

15

ADD/NTESTOUT

Digital Input

16

CI

Digital Input

Description

General-purpose I/O pin that can be configured as digital inputs or outputs.

General-purpose I/O pin that can be configured as digital inputs or outputs.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Monitors the main 3.3 V system supply. Does not power the device.

Ground pin for digital circuits.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Fan tachometer input with internal 10 kW pullup resistor to 3.3 V STBY. Can be

reconfigured as a general-purpose, open drain, digital I/O pin.

Open Drain Serial Bus Clock. Requires a 2.2 kW pullup resistor.

Serial Bus Data. Open drain I/O. Requires a 2.2 kW pullup resistor.

This is a three-state input that controls the two LSBs of the serial bus address. It

also functions as the output for NAND tree testing.

An active high input that captures a chassis intrusion event in Bit 6 of Status

Register 4. This bit remains set until cleared, as long as battery voltage is applied

to the VBAT input, even when the ADM1026 is powered off.

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