HV301/HV311
Long
Pin
8
GND
V
DD
PWRGD / PWRGD
1
R1
487kΩ
ENABLE / ENABLE
Cload
+5V
3
2
UV
R2
HV311
6.81kΩ
DC/DC
PWM
CONVERTER
COM
OV
R3
9.76kΩ
RAMP
V
SENSE GATE
EE
7
4
5
6
Short
Pin
6.2V
-48V
C1
10nF
Long
Pin
-48V
R4
12.5mΩ
Q1
IRF530
Nt O:Vceꢂeca tpVmeyVbOViOOdOdV tVsltwVPWRGDVdv/d VafVge O
tscalle atisVeptuidVepOVtbsOpvOdVwhOiVꢀINVasVcltsOV tVꢁꢀLꢁ.
Application Circuit 9
IfVeVsys OmVpOquapOsV hOVusOVtfVeVshtp VctiiOc tpVꢂaiVtiV hO
Increasing Under Voltage Hysteresis
iOge avOVsuꢂꢂlyVlOedV tVguepei OOV he V hOVꢂtwOpVꢂaisVepOVfully
me OdVbOftpOV hOVht VsweꢂVcti ptlVcapcua VasVOieblOdVeidVusOs
sOꢂepe OVpOsas tpVdavadOpsVftpVUꢀVeidVꢁꢀ,V hOiVeV6.2ꢀV tV10ꢀ
IfV hOVai OpiellyVfaxOdVuidOpVvtl egOVhys OpOsasVasVaisuffacaOi VftpVe
ꢂep aculepVsys OmVeꢂꢂlace ati,V hOiVa VmeyVbOVaicpOesOdVbyVusaig
sOꢂepe OVpOsas tpVdavadOpsVftpVꢁꢀVeidVUꢀVeidVꢂptvadaigVeVpOsas tp
fOOdbeckVꢂe hVfptmV hOVGATEVꢂaiV tV hOVUꢀVꢂaiV( Application
Circuit 11).
zOiOpVdatdOVmus VbOVctiiOc OdVfptmV hOVꢁꢀVꢂaiV tV hOVꢀVꢂaiVeid
EE
tilyV hOVꢁꢀVdavadOpVshtuldVbOVctiiOc OdV tV hOVshtp Vꢂai
(Application Circuit 10).
Long
Pin
GND
8
V
DD
PWRGD / PWRGD
1
R1
475kΩ
ENABLE / ENABLE
Cload
+5V
3
2
UV
R2
R3
HV301/
HV311
16.2kΩ
511kΩ
DC/DC
PWM
CONVERTER
COM
OV
R4
10kΩ
RAMP
V
4
SENSE GATE
EE
7
5
6
Short
-48V
6.2V
Pin
C1
10nF
Long
Pin
-48V
R5
Q1
IRF530
12.5mΩ
Nt O:Vceꢂeca tpVmeyVbOViOOdOdV tVsltwVPWRGDVdv/d VafVge O
tscalle atisVeptuidVepOVtbsOpvOdVwhOiVꢀINVasVcltsOV tVꢁꢀLꢁ.
Application Circuit 10
A092605
14
SUPERTEX [ Supertex, Inc ]
