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參數資料
| 型號： | FAN8038C |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 4-Channel Motor Drive IC |
| 中文描述： | 4 CHANNEL CD MOTOR DRIVER, PQFP44 |
| 封裝： | 10 X 10 MM, QFP-44 |
| 文件頁數： | 12/16頁 |
| 文件大小： | 405K |
| 代理商： | FAN8038C |
FAN8038C
12
The time until switching-off is set by the capacitor, C
SCP
, and the equation is as follows:
6-4. Soft Start Function
The soft start function operates when a capacitor is connected between DEDSET(pin4) and GND. Also, the maximum duty
cab be varied by connecting a resistor to pin4.
7. POWER OFF FUNCTION
When low level is applied to STOP (pin40), SCP (pin8) is charged, and when the voltage reaches 1.25V (typical), the PWM
comparator output, BDSW(pin5), is shwitch-off.
The time until switching-off is set by the capacitor, C
SCP
, and the equation is as follows:
×
=
8. BATTERY CHARGER AND MONITORING FUNCTION
8-1. Set to Battey Charging Current
The power supply for the charging circuit is ADPVCC (pin41), and battery charger circuit is separated from any other
block. The resistance between CHGSET (pin33) and GND sets the charging current, i
CHG
.
This current, i
CHG
, is drawn from EMPSET (pin42).
The thermal shutdown circuit is provided, and when the chip temperature rise up to about 150
°
C the charging current, i
CHG
,
is cut-off and it has the temperature hysteresis of about 30
°
C.
8-2. Over Voltage Protection
When the voltage applied to the OVP (pin1) reaches 9.7V, SCP (pin8) is charged, and when the voltage reaches 1.25V
(typical), the PWM comparator output, BDSW(pin5), is shwitch-off.
The time until switching-off is set by the capacitor, C
SCP
, and the equation is as follows:
8-3. Empty Detecting Circuit
when the voltage applied to the OVP (pin1) falls below the detector voltage, EMP (pin35) goes from high level to low level
(open collector output). The detector voltage has 50mV of hysteresis to prevent output chattering.
EMPSEL (pin42) to switch the detection voltage as shown below.
EMPSET
Detect Voltage
LOW
2.2V
HIGH-Z
1.8V
Hysteresis
50mV
50mV
Mode
Battery Mode
Adapter Mode
]
[
10
],
[
25
.
,
[sec]
uA
i
V
V
where
i
V
C
t
SCP
SCP
SCP
=
SCP
SCP
SCP
=
×
=
]
[
65
,
=
×
K
=
R
Where
R
C
t
DEDSET
SOFT
]
[
20
],
[
25
.
,
[sec]
uA
i
V
V
Where
i
V
C
t
OFF
TH
OFF
=
TH
SCP
OFF
=
]
[
20
],
[
25
.
=
,
[sec]
uA
i
V
V
Where
i
V
C
t
OVP
TH
OVP
TH
SCP
OVP
=
×
=
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN8039BD3 | 功能描述:馬達/運動/點火控制器和驅動器 4Ch BTL Driver 1Ch DC Motor Driver RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8039BD3TF | 功能描述:馬達/運動/點火控制器和驅動器 4Ch BTL Driver 1Ch DC Motor Driver RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8039D3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| FAN8040 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Driver |
| FAN8040G3 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Driver |
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