参数资料
型号: LA5690S
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PSIP9
封装: SIP-9
文件页数: 4/6页
文件大小: 299K
代理商: LA5690S
LA5690D, 5690S
Νο.2895-4/6
Test Circuit
Timing Chart
Vhys
VCC
Vo
Ct
td
tCKW
tWD
tWR
Vs
0
4V
5V
2V
RES
Ck
Digital output at I/O port
of microcomputer
Microcomputer
operation start
Application of power
Instantaneous drop
CPU
abnormality
Note : Edge-triggered at the point indicated by the arrow of CK signal.
Sample Application Circuit
+
100
μF
+
10
μF
Cin
Vcont
Vo
Co
0.01
μF
Cck
+
1
μF
Ct
Vo
R1
R2
VSS
VDD
VS
2SA1289
TR1
RB
VCC
390
Ω
RES
CK
DO
LA5690
D/S
CPU
GND
Ct
RES
VS = VREF× (
+1)
VREF 1.18 (V)
td = 10×Ct (μF) [ms]
TR1 : 2SA1289 (60V/5A, TO220)
Ct : Sanyo OS capacitor
Ct, Co : Capacitors whose value does not vary with temperature very much.
CCK : Must be used to eliminate noise in the reset output.
tWD = 5×Ct (μF) [ms]
tWR = 0.25×Ct (μF) [ms]
R1
R2
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