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您現在的位置：買賣IC網 > PDF目錄373995 > ADM1026JST (ANALOG DEVICES INC) Circular Connector; No. of Contacts:28; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:19-28 PDF資料下載

參數資料

型號：	ADM1026JST
廠商：	ANALOG DEVICES INC
元件分類：	電源管理
英文描述：	Circular Connector; No. of Contacts:28; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:19-28
中文描述：	4-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48
封裝：	7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48
文件頁數：	7/56頁
文件大小：	634K
代理商：	ADM1026JST

ADM1026

Rev. A | Page 7 of 56

Pin No.

Mnemonic

PWM

Type

Digital Output

Description

Open drain pulse width modulated output for control of the fan speed. This pin defaults

to high for the 100% duty cycle for use with NMOS drive circuitry. If a PMOS device is used

to drive the fan, the PWM output may be inverted by setting Bit 1 of Test Register 1 = 1.

Power-On Reset. 5 mA driver (weak 100 k pull-up), active low output (100 k pull-up)

with a 180 ms typical pulse width. RESETSTBY is asserted whenever 3.3 V STBY is below

the reset threshold. It remains asserted for approximately 180 ms after 3.3 V STBY rises

above the reset threshold.

Power-On Reset. 5 mA driver (weak 100 k pull-up), active low output (100 k pull-up)

with a 180 ms typical pulse width. RESETMAIN is asserted whenever 3.3 V MAIN is below

the reset threshold. It remains asserted for approximately 180 ms after 3.3 V MAIN rises

above the reset threshold. If, however, 3.3 V STBY rises with or before 3.3 V MAIN, then

RESETMAIN remains asserted for 180 ms after RESETSTBY is deasserted. Pin 20 also

functions as an active low RESET input.

Ground pin for analog circuits.

Supplies 3.3 V power. Also monitors the 3.3 V standby power rail.

Analog Output 0 V to 2.5 V output for analog control of the fan speed.

Analog Output Reference Voltage Output. Can be selected as 1.8 V (default) or 2.5 V.

Analog Input

Connected to a cathode of the first remote temperature sensing diode. If it is held high at

power-on, it activates the NAND tree test mode.

Analog Input

Connected to the anode of the first remote temperature sensing diode.

Programmable Connected to the cathode of the second remote temperature sensing diode, or the

analog input may be reconfigured as a 0 V 2.5 V analog input.

Programmable Connected to the anode of the second remote temperature sensing diode, or the analog

input may be reconfigured as a 0 V 2.5 V analog input.

Analog Input

Monitors battery voltage, nominally +3 V.

Analog Input

Monitors the +5 V supply.

Analog Input

Monitors the

12 V supply.

Analog Input

Monitors the +12 V supply.

Analog Input

Monitors the processor core voltage (0 V to 3.0 V).

Analog Input

General-purpose 0 V to 2.5 V analog inputs.

Analog Input

General-purpose 0 V to 2.5 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Analog Input

General-purpose 0 V to 3 V analog inputs.

Digital I/O

General-purpose I/O pin that can be configured as a digital input or output. Can also be

configured as a bidirectional THERM pin (100 k pull-up).

Digital I/O