OZ962 Ver la hoja de datos (PDF) - O2Micro International
Número de pieza
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Lista de partido
OZ962 Datasheet PDF : 6 Pages
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OZ962
FUNCTIONAL BLOCK DIAGRAM
Ct(14) Rt(15)
OVP(2)
VDD(16)
Under Voltage
Lockout
REF(1)
Band Gap
Reference
ADJ(5)
40k
FB(6)
CMP(7)
OSC
RAMP
Error
Amp.
Vcmp
3V
Vdd
OVP Voltage
Generator
OVP
OVP=Vref-(Vdd - 1)(12.5/150)
D=1.1(OVP)/2.5 - 0.2
Break
Before
Make
N-Clamp
Vref (2.5V)
RAMP
OSC
SQ
RQ
Ve
Ve=Vcmp-2*(Vcmp-SST-Vgs)
P-Clamp
1/2F
60k
30k
1k
SST
Dmax
Clamp
9k
OVP
NDR(11)
PDR(10)
CLK(13)
3µ A
SST(9)
10µA
2.0v
SST
2µA
SCP(4)
Note :
OVP – Over Voltage Protection
SCP – Short-Circuit Protection
UVL – Under Voltage Lockout
OVP
SCP & OVP inhibited during
start-up
ADJ
OVP
SCP
UVL
shut
down
latch
Figure 2. Functional Block Diagram
ENA(12)
GND(8)
OZ962-SF -2.7
Page 2
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