NJW4305 NJRC [New Japan Radio], NJW4305 Datasheet
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NJW4305
Manufacturer Part Number
NJW4305
Description
PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER
Manufacturer
NJRC [New Japan Radio]
Datasheet
1.NJW4305.pdf
(1 pages)
Ver.2010/09/03
■ GENERAL DESCRIPTION
■ FEATURE
■ FUNCTION LINEUP
PWM control.
driving waveform.
power MOS transistors for better power handling.
control feature can be easily achieved.
NJW4305A
NJW4305B ( PLN )
NJW4305C ( PLN )
NJW4305D ( PLN )
The NJW4305 is a 3-phase brushless DC motor controller with
▪ Supply Voltage
▪ Quiescent Current
▪ PWM Pre-Driver
▪ Direct PWM Control Circuit
▪ Operating Temperature
▪ Protection Circuit
▪ FG Output
▪ Forward / Reverse Direction
▪ Package
It uses hall element signal inputs and generates motor
Output pre-driver is optimized to work with external
Using the NJW4305, 3-phase DC motor application with speed
PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER
: 7.0V ~ 38V
: 4.1mA typ.
: 100mA
: -40ºC ~ +105ºC ( T Series )
: ILIMIT, UVLO, TSD, LD
: SSOP-20-C3
: FR Function
: Vref(for HB)
: BR Function
: FR+Vref+BR+Small PKG
NJW4305
■ PACKAGE OUTLINE
■ BLOCK DIAGLAM
VERR
OSC
H1+
H1-
H2+
H2-
H3+
H3-
FR
NJW4305XVC3/T
TSD
Saw
Oscillator
+
-
+
-
+
-
+
-
Dead
Time
Position
Decode
PWM Logic
UVLO
Rotor
Detect
Lock
Ct
Local
Oscillator
VREF
+
-
VCC
UH
VH
WH
UL
VL
WL
ILIMIT
FG
GND