Year: 2025

UP1589Q Datasheet – Laptop IC For Power Supply Controller

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This is one of the controller types.

Part Number: UP1589Q, UP1589QQKF

Function: High Efficiency, Main Power Supply Controller

Package:  QFN-20 Pin Type

Manufacturer: UPI Semiconductor

See the preview image and the PDF file for more information.

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UP1589Q datasheet

Description

The UP1589Q is a dual step down, Switch Mode Power Supply (SMPS) controller which generates logic supply voltages for battery powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V and also two fixed 5V/3.3V linear regulators. One of the controllers (LDO5) provides automatic switch over to the BYP1 input connected to the main SMPS1 output for maximized efficiency.

Pinout ( = RT8239B )

UP1589Q pinout

Features

1. Fast Load Transient Response

2. Current Mode Option Supports Ceramic Output Capacitors

UP1589Q Applications

1. Notebook computers
2. System Power Supplies
3. 3- and 4- Cell Li+ Battery-Powered Device

UP1589Q Datasheet

UP1590 Datasheet

UP1590 pdf

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JQC-3F Datasheet PDF – PCB Relay ( 10A, 3V to 24V DC )

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Part Number: JQC-3F

Function: PCB Relay ( High-Power Electromagnetic Relay )

Package: 5 Pin DIP Type

Manufacturer: Tongling, HWE ( Yueqing Hengwei Electronics )

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Relay JQC-3F Datasheet

Description

The JQC-3F is a general-purpose electromagnetic PCB relay (single pole changeover / SPDT) commonly offered in coil voltages from 3V to 24V DC. It supports load switching up to around 10A at 250VAC or 30VDC with silver alloy contacts in a compact footprint. This relay is used wherever isolation between control logic and power circuits is needed and space is limited.

Features

1. Contact Form 1A, 1C

2. Contact material : AgCdO

3. Contact Resistance : < 100 Mohm ( 1A 6VDC )

4. Switching Current : 10 A

5. Rated Load : 10A 250VAC/30VDC

Pinouts

JQC-3F pinout

Absolute Maximum Ratings (Ta = 25 °C)

Parameter Symbol Value Unit
Maximum switching voltage VSW 250 VAC / 30 VDC
Maximum switching current ISW 10 A
Coil power Pcoil 0.36 / 0.45 W
Insulation resistance (min) Rins 100 MΩ
Dielectric (coil ↔ contacts) Vdiel1 1500 VAC
Dielectric (open contacts) Vdiel2 750 VAC
Operate time max top 10 ms
Release time max trel 5 ms
Ambient temperature range Tamb –40 to +85 °C

Applications

  • Switching loads in home appliances (e.g. motors, lighting)
  • Control and automation systems requiring isolation
  • Power supply soft start or bypass switching
  • Audio and instrument switching
  • General purpose relay use in industrial electronics

Alternative / Equivalent Products

  • HF3FF (Hongfa) series 10A SPDT relay :contentReference[oaicite:8]{index=8}
  • Songle SRD-05VDC-CL 10A relay (common miniature relay)
  • Panasonic TQ2SA series miniature general purpose relay
  • Omron G5LE series 10A general purpose relay
  • TE / Potter & Brumfield PB series 10A signal relays

Other data sheets are available within the file:

JQC-3F1ADC12V, JQC-3F1ADC24V, JQC-3F1CDC12V, JQC-3F1CDC24V

JQC-3F Datasheet PDF Download


JQC-3F pdf