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NCP81232MNTXG डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Dual-Channel/Multi-Phase Controller - ON Semiconductor

भाग संख्या NCP81232MNTXG
समारोह Dual-Channel/Multi-Phase Controller
मैन्युफैक्चरर्स ON Semiconductor 
लोगो ON Semiconductor लोगो 
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NCP81232MNTXG pdf
NCP81232
40 39 38 37 36 35 34 33 32 31
1 VIN
2 EN1
3 EN2
4 DRVON
5 PGOOD 1
6 PGOOD 2
7 FAULT
8 DLY 1
9
DLY 2
/ DDR
10 SS
GND
41
ISP1 30
ISN1 29
ISP2 28
ISN2 27
PWM2 26
PWM3 25
ISP3 24
ISN3 23
ISP4 22
ISN4 21
11 12 13 14 15 16 17 18 19 20
Figure 1. Pin Configuration
PIN DESCRIPTION
Pin Name
1 VIN
2 EN1
3 EN2
4 DRVON
5 PGOOD1
6 PGOOD2
7 FAULT
8 DLY1
9 DLY2
/DDR
10 SS
11 FSET
12 CNFG
13 ILIMT2
Type
Power Input
Analog Input
Analog Input
Logic Input
Logic Output
Logic Output
Logic Output
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Description
Power Supply Input. Power supply input pin of the device, which is connected to the
integrated 5V LDO. 4.7 mF or more ceramic capacitors must bypass this input to power
ground. The capacitors should be placed as close as possible to this pin.
Enable 1. Logic high enables channel 1 and logic low disables channel 1. Input supply
UVLO can be programmed at this pin for channel 1.
Enable 2. Logic high enables channel 2 and logic low disables channel 2. Input supply
UVLO can be programmed at this pin for channel 2.
Driver On. Logic high input means drivers’ power is ready.
Power GOOD 1. Open−drain output. Provides a logic high valid power good output signal,
indicating the regulator’s output is in regulation window of channel 1.
Power GOOD 2. Open−drain output. Provides a logic high valid power good output signal,
indicating the regulator’s output is in regulation window of channel 2.
Fault. Digital output to indicate fault mode.
Delay 1. A resistor from this pin to GND programs delay time of soft start for channel 1.
Delay 2 / DDR. A resistor from this pin to GND programs delay time of soft start for
channel 2. Short to GND to have DDR operation mode.
Soft Start Time. A resistor from this pin to ground programs soft start time for both
channels.
Frequency Selection. A resistor from this pin to ground programs switching frequency.
Configuration. A resistor from this pin to ground programs configuration of power stages.
Limit of Current 2. Voltage at this pin sets over−current threshold for channel 2.
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NCP81232MNTXGDual-Channel/Multi-Phase ControllerON Semiconductor
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