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F1962 데이터시트 PDF




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부품번호 F1962 기능
기능 SINGLE-PHASE FULL-WAVE MOTOR DRIVER IC
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F1962 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
F1962
LINEAR INTEGRATED CIRCUIT
SINGLE-PHASE FULL-WAVE
MOTOR DRIVER IC
DESCRIPTION
The UTC F1962 is a Single-phase full-wave motor driver designed
specially for small DC fans. For example, CPU cooling fans.
FEATURES
* Wide Operating Voltage 5V or 12V Are Both Acceptable
* Built-In Hall Amplifier And Hall Bias Circuit
* Built-In Lockup And Thermal Protection With Automatic Recovery
Circuits
* Rotation Detection Output
* Start/Stop Pin For Standby Mode Control
ORDERING INFORMATION
Ordering Number
F1962G-SM2-T
F1962G-SM2-R
F1962G-R10-T
F1962G-R10-R
Package
MSOP-10
MSOP-10
SSOP-10
SSOP-10
Packing
Tube
Tape Reel
Tube
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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F1962 pdf, 반도체, 판매, 대치품
F1962
TRUTH TABLE
ST IN-
H
H
LL
IN+
L
H
LINEAR INTEGRATED CIRCUIT
CT OUT1 OUT2 FG
off off off
L
H
L
L
H
H
L
H off off
HB Mode
off Standby
L Rotating
L
Lockup protection
activated
DESIGN REFERENCE
(1) VCC pin
Power supply pin for whole IC.
(2) OUT1, OUT2 pins
Single-phase coil output pins.
Bipolar forward or reverse drive output determined by OUT1 or OUT2 high. Built-in regenerative circuit that
regenerates kickback current between lower side NPN outputs if a diode is used for protection against reverse
connection.
(3) IN, IN+ pins
Hall signal input pins
The Hall signal is amplified into a square wave by the Hall amplifier with hysteresis characteristics of ±3.5 mV
(typ.). The Hall signal amplitude should be 70 mV or more.
(4) CT pin
This pin serves timing capacitor connecting pin between CT and GND.
The capacitor determines timing of the built-in lockup protection circuit for preventing coil burnout when motor is
locked. Once normal motor rotating condition is restored, the automatic recovery circuit will reset itself.
Adjusting the capacitance alters the lockup detection time.
When a 0.47 mF capacitor is connected between CT and GND
Lockup detection time
:approx. 0.5s
Lockup protection time/automatic recovery time :approx. 0.16s (output ON)
:approx. 1s (output OFF)
Connecting this pin to ground when lockup function is not used
(6) FG pin
Open-collector output pin for rotation frequency detection.
When IN= High and IN+ = Low, then FG = Low
When IN= Low and IN+ = High, then FG = High
(7) ST pin and HB pin
ST pin: When input to this pin is High, motor drive is stopped (OUT is high impedance).
HB pin: Hall bias switching pin. At ST pin High input, Hall bias is switched to reduce current drain in fan standby
mode.
If not used, both pins should be open.
(8) Thermal protection circuit
When junction temperature TJ of IC is or over about 150, output current limiter is activated to protect against
damage.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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F1962 전자부품, 판매, 대치품
F1962
TYPICAL CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R109-017. E

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관련 데이터시트

부품번호상세설명 및 기능제조사
F1962

SINGLE-PHASE FULL-WAVE MOTOR DRIVER IC

Unisonic Technologies
Unisonic Technologies

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