參數(shù)資料
型號: KA3031
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 光電元器件
英文描述: 6-Channel Motor Drive IC
中文描述: CD MOTOR DRIVER, PQFP48
封裝: 14 X 14 MM, HEAT SINK, QFP-48
文件頁數(shù): 14/24頁
文件大小: 359K
代理商: KA3031
KA3031
14
4. REGULATOR & RESET FUNCTION
The regulator and reset circuits are as illustrated in Figure 1.
where R1=R2.
The external circuit is composed of the transistor, KSB772 and a capacitor, about 33[
μ
F]. The capacitor is used as a ripple
eliminator and should have good temperature characteristics.
The regulator output voltage (pin 46) is decided as follows.
Vout = 2
×
2.5 = 5[V] (where R1 = R2)
When the voltage of pin 43 (Vreset) is at 5[V], the regulator output voltage (pin 46) because 5[V]. If the voltage
of pin 43 is 0[V], the output voltage of pin 46 because 0[V].
Figure 1. Regulator circuit
+
39
43
44
46
47
KSB772
REG OUT
V
CC
33
μ
F
2.5V
R1
R2
Vreset
+
KA3031
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