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參數(shù)資料
| 型號(hào)： | KA3038 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Tantalum Molded High Capacitance Capacitor; Capacitance: 47uF; Voltage: 2.5V; Packaging: Tape & Reel |
| 中文描述： | 4通道馬達(dá)驅(qū)動(dòng)IC |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大?。?/td> | 249K |
| 代理商： | KA3038 |
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FAN8038B(KA3038)
12
Short Circuit Protection function when GND and is short, ERRI become LOW and ERRO HIGH and it makes capacitor
charging. fanally AMP3 is OFF.(figure 5)
Figure 3. DC/DC Converter Control Circuit
Switching off time depen on a capacitor of the SCP . and the equation is as follow.
V
I
SCP
Max Duty can be controlled resistor. the equation is as follow
.
Capacitor of the SCP terminal can control disable switiching time and it can be calculated by as follow equation.
Over Voltage Protection BATT Voltage is over 9.7V charging SCP terminal Capacitor, it reach to V
TH
SW terminal signal
is OFF the equation is as follow
If Output Voltage of RSTOUT Circuit DC/DC Conver is over than 90%, RSTOUT terminal turn to HIGH and Hysteresis is
50mV. and RSTOUT stste is ON.
7. Empty Detecting Circuit.
8. Battery Charging Circuit
the battery charger circuit is separated from any other block .
TSD operate at 150
°
C. Hysteresis is 30
°
C
EMPSET
LOW
HIGH-Z
Detect Voltage
2.2V
1.8V
Hysteresis
50mV
50mV
Mode
Battery Mode
Adapter Mode
AMP1
30.5K
30K
AMP4
1.267V
1.267V
SVCC
1
DEDSET
COSC
SCP
BATT
AMP3
AMP5
t
C
SCP
-----------
×
=
V
TH
1.25V, I
SPRT
10
μ
A
=
=
(
)
t
C
DEDSET
R
×
=
R
65K
=
(
)
t
C
SCP
V
I
STOP
---------------
×
=
V
TH
1.25V, I
OFF
20
μ
A
=
=
(
)
t
C
SCP
V
HV
----------
×
=
V
TH
1.25V, I
HV
20
μ
A
=
=
(
)
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| KA3080BD3TF | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC Motor Driver 3-Phase 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 |
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