BUK3F00-50WDXX Datasheet, PDF (5/52 Pages) NXP Semiconductors – Controller for TrenchPLUS FETs

NXP Semiconductors
BUK3F00-50WDxx
Controller for TrenchPLUS FETs
BUK3F00-50WDXX_4
Product data sheet
Table 4. Pin description …continued
Symbol
Pin
Description
Charge pump capacitors
CPP
40
positive connection to external pump capacitor
CPN
41
negative connection to external pump capacitor
CT
39
connection to external storage capacitor
Digital
EN
11
enable input; internal pull-down resistor
INTN
46
interrupt output; open-drain output
WDEN
15
watchdog enable input; internal pull-up resistor
WDTON
2
watchdog timed output; open-drain output
PWMMON
47
PWM frequency monitor output
Serial peripheral interface
SCLK
34
SPI clock input; internal pull-down resistor
SCSN
35
SPI chip select input; internal pull-up resistor
SDI
36
SPI data input; internal pull-down resistor
SDO
45
SPI data output; 3-state when inactive
Analog
IREFCURR
8
set reference for current measurement (with external resistor)
IREFTEMP
9
set reference for temperature sense (with external resistor)
IMEAS
5
analog current measurement output (for selected channel)
Direct input pins
IN0
3
direct input 0; internal pull-down resistor
IN1
4
direct input 1; internal pull-down resistor
IN2
13
direct input 2; internal pull-down resistor
IN3
12
direct input 3; internal pull-down resistor
INP
14
PWM input; internal pull-down resistor
Connections for external TrenchPLUS switches
Channel 0
GATE0
64
gate
KELVIN0
61
source kelvin
SENSE0
63
current sense
ANODE0
62
anode of temperature sense diode
Channel 1
GATE1
60
gate
KELVIN1
57
source kelvin
SENSE1
59
current sense
ANODE1
58
anode of temperature sense diode
Channel 2
GATE2
56
gate
KELVIN2
53
source kelvin
SENSE2
55
current sense
ANODE2
54
anode of temperature sense diode
Rev. 04 — 4 September 2008
© NXP B.V. 2008. All rights reserved.
5 of 52