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參數(shù)資料
| 型號(hào)： | LB1962M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Fan Motor Single-Phase Full-Wave Drivers |
| 中文描述： | 風(fēng)扇電機(jī)單相全波驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 5/7頁(yè) |
| 文件大小： | 47K |
| 代理商： | LB1962M |
LB1862M, LB1962M
No. 5657-5/7
Design reference
(1) V
CC
pin
Power supply pin for control block and motor drive.
Accepts a wide operation voltage range from 3.8 to 16.8V, for 5V/12V dual power supply support.
(2) OUT1, OUT2 pins
Single-phase coil output pins.
Bipolar drive output with upper side inverted and lower side single output. Built-in regenerative circuit regenerates
kickback current between lower side NPN outputs when a diode is used for protection against reverse connection.
(3) IN
–
, IN
+
pins
Hall input signal pins
The Hall signal is amplified into a square wave by the Hall amplifier with hysteresis characteristics of
±
3.5 mV
(typ.). The Hall input signal amplitude should be 70 mV or more.
(4) CT pin
This pin serves for connecting a capacitor between CT and GND.
The capacitor determines the characteristics of the built-in lockup protection circuit for preventing coil burnout in
the case of motor restraint. Once normal motor load is restored, the automatic recovery circuit resets itself.
Changing the capacitance alters the lockup detection time.
When a 0.47
μ
F capacitor is connected between CT and GND
Lockup detection time
Lockup protection time/automatic recovery time
: approx. 0.5s
: approx. 0.16s (output ON)
approx. 1s (output OFF)
When not using lockup protection function, this pin should be connected to ground.
(5) RD pin (LB1862M)
Open-collector output pin that is Low during rotation and OFF when lockup is detected.
The output is a latch type which stays OFF also when the automatic recovery circuit has restored drive mode unless
the rotation actually resumes.
(6) FG pin (LB1962M)
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).
At this time, RD output indicates lockup protection mode OFF.
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 internal temperature Tj of IC reaches 180
°
C, output current limiter is activated to protect against damage.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB1964 | Fan Motor Single-Phase Full-Wave Driver |
| LB1964T | Fan Motor Single-Phase Full-Wave Driver |
| LB1965 | Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| LB1965M | Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| LB1966 | Fan Motor 2-Phase Half-Wave Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1962MC-AH | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BRUSHLESS MOTOR DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB1964 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor Single-Phase Full-Wave Driver |
| LB1964T | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor Single-Phase Full-Wave Driver |
| LB1965 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| LB1965M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
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