參數(shù)資料
型號(hào): HA17451AP
廠商: Hitachi,Ltd.
英文描述: Switching Regulator Controllers for DC/DC Converters
中文描述: 開(kāi)關(guān)穩(wěn)壓器控制器的直流/直流轉(zhuǎn)換器
文件頁(yè)數(shù): 13/15頁(yè)
文件大?。?/td> 83K
代理商: HA17451AP
HA17451AP/HA17451AFP
13
Precautions
Precaution concerning inverting (negative voltage) output
Conditions
Circuit diagram
R + R >
|V | V
18
μ
A
To prevent leakage current in the IC from interfering
with stable and efficient operation, choose R and R
values that satisfy the following condition:
where, R , R :
|V |:
18
μ
A:
Feedback voltage resistors
Absolute value of negative output voltage
Minimum current with negative voltage
at reference voltage pin; I (min)
V
IN
V
CC
OUT
–V
OUT
+
R
R
Vref
Iref
Iref
INV. INPUT
HA17451A
Negative
DC output
I (min)
–0.2 V
0 V
Vref
18
μ
A
2
1
2
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