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NCV3030B डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous PWM Controller - ON Semiconductor

भाग संख्या NCV3030B
समारोह Synchronous PWM Controller
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<?=NCV3030B?> डेटा पत्रक पीडीएफ

NCV3030B pdf
VCC
COMP
FB
NCP3030A, NCP3030B, NCV3030A, NCV3030B
INTERNAL BIAS
POR/STARTUP
THERMAL SD
VC
BOOST
CLAMP
OSCILLATOR
CLK/
DMAX/
SOFT
START
RAMP
1.5 V
GATE
DRIVE
LOGIC
REF
OTA
+
PWM
COMP
LEVEL
SHIFT
VCC
CURRENT SAMPLE &
LIMIT
HOLD
ISET
VC
+
OOV
OUV
+
Figure 2. NCP3030 Block Diagram
BST_CHRG
BST
HSDR
VSW
LSDR
GND
PIN FUNCTION DESCRIPTION
Pin Pin Name
Description
1 VCC The VCC pin is the main voltage supply input. It is also used in conjunction with the VSW pin to sense current
in the high side MOSFET.
2 COMP The COMP pin connects to the output of the Operational Transconductance Amplifier (OTA) and the positive
terminal of the PWM comparator. This pin is used in conjunction with the FB pin to compensate the voltage
mode control feedback loop.
3 FB The FB pin is connected to the inverting input of the OTA. This pin is used in conjunction with the COMP pin to
compensate the voltage mode control feedback loop.
4
GND
Ground Pin
5
LSDR
The LSDR pin is connected to the output of the low side driver which connects to the gate of the low side
NFET. It is also used to set the threshold of the current limit circuit (ISET) by connecting a resistor from LSDR
to GND.
6
VSW
The VSW
current in
pin
the
is the return path for
high side MOSFET.
the
high
side
driver.
It
is
also
used
in
conjunction
with
the
VCC
pin
to
sense
7 HSDR The HSDR pin is connected to the output of the high side driver which connects to the gate of the high side
NFET.
8 BST The BST pin is the supply rail for the gate drivers. A capacitor must be connected between this pin and the
VSW pin.
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डाउनलोड[ NCV3030B Datasheet.PDF ]


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अनुशंसा डेटापत्रक

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