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AH9480 の電気的特性と機能

AH9480のメーカーはBCDです、この部品の機能は「Single Phase Low Noise Smart Motor Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 AH9480
部品説明 Single Phase Low Noise Smart Motor Driver
メーカ BCD
ロゴ BCD ロゴ 




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AH9480 Datasheet, AH9480 PDF,ピン配置, 機能
Data Sheet
Single Phase Low Noise Smart Motor Driver
AH9479/80/81
General Description
The AH9479/80/81 is a single chip solution for
driving single coil brushless DC motors. It combines
a motor driver with a high sensitivity Hall sensor,
which simplifies the PCB design and makes the
fabrication of small-size motors possible.
The AH9480 has an open-drain tachometer output FG
that follows the Hall sensor latching output. The
AH9481 has an open-drain rotation detection output
RD that is active low when the motor is spinning and
goes high when blocked.
When there is no motion about 0.4 second, the IC
will automatically detect the locked rotor conditions,
and enter protection mode, shutting off the motor
driver for 4 seconds. Then, the IC will turn on the
motor driver for 0.4 second to detect whether there is
rotation condition, if fails, the IC will shut off motor
driver for four seconds again. This sequence will be
repeated until rotation condition is detected, and the
IC enters normal operation. This feature can
effectively prevent the IC from overheating and
damage due to long-time locked rotor condition.
“Soft-switch” is used to reduce the vibration and
acoustic noise. Thermal-shutdown protection ensures
that the motor driver operates under specified
temperature ranges.
The AH9479 is packaged in TO-94, and the
AH9480/81 is packaged in TO-95 and MSOP-8.
Features
• Full Bridge Driver
• High Sensitivity Integrated Hall Sensor
• Soft-switching for Low Noise
• Low Supply Voltage: 2.5V
• Locked Rotor Protection and Auto-restart
• Thermal Protection
• Output Over-current Protection
• Short Circuit Protection
• Tachometer Output Signal (AH9480)
• Alarm Output Signal (AH9481)
Applications
• 5V/12V Low Noise BLDC Cooling Fans
• Low Voltage / Low Power BLDC Motors
• Notebook DC Fans / Blowers
• Automotive Low Noise Climate Control Fans
• Micro-motors
TO-94
TO-95
MSOP-8
Mar. 2012 Rev. 1. 1
Figure 1. Package Types of AH9479/80/81
BCD Semiconductor Manufacturing Limited
1

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AH9480 pdf, ピン配列
Single Phase Low Noise Smart Motor Driver
Functional Block Diagram
Data Sheet
AH9479/80/81
A (B) {C}
A for TO-94
B for TO-95
C for MSOP-8
Figure 3. Functional Block Diagram of AH9479/80/81
Mar. 2012 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
3


3Pages


AH9480 電子部品, 半導体
Data Sheet
Single Phase Low Noise Smart Motor Driver
AH9479/80/81
Electrical Characteristics
VCC=12V, TA=25oC, unless otherwise specified.
Parameter
Supply Voltage
Supply Current
ON Resistance
(RPMOS+RNMOS=RS)
FG/RD Output Low
Voltage
FG/RD Output Leakage
Current
Locked Rotor Period
(ON)
Locked Rotor Period
(OFF)
Protection Temperature
Symbol
VCC
ICC
RDSON1_2
VOL
ILEAKAGE
tON
tOFF
TOTP
Conditions
Operating, RCOIL=100 
VCC=12V,TA=25ºC, IOUT=300mA
VCC=12V,TJ=125,IOUT=300mA
IOL=5mA
VFG (VRD)=5V
VCC>7V
VCC>7V
Min
2.5
Typ Max Unit
16 V
4.3 12 mA
3.3
3.3
0.18 0.5 V
0.15 10 µA
0.4 s
4s
175 ºC
Magnetic Characteristics
VCC=12V, TA=25ºC, unless otherwise specified.
Parameter
Operating Point
Releasing Point
Hysteresis
Symbol
BOP
BRP
BHYS
Min
0
-50
Typ Max
20 50
-20 0
40
Unit
Gauss
Gauss
Gauss
Mar. 2012 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
6

6 Page



ページ 合計 : 16 ページ
 
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共有リンク

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部品番号部品説明メーカ
AH9480

Single Phase Low Noise Smart Motor Driver

BCD
BCD
AH9481

Single Phase Low Noise Smart Motor Driver

BCD
BCD


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