NJW4302FA1 NJR, NJW4302FA1 Datasheet
NJW4302FA1
Specifications of NJW4302FA1
Available stocks
Related parts for NJW4302FA1
NJW4302FA1 Summary of contents
Page 1
... IN TIN IN TOU TS OSC TEGR ATION AMP FG SPEED RIMI N ATOR SPEE ALTER N ATIVE LOC K PLL TER TER FILO NJW4302 PACKEGE OUTLINE NJW4302FA1 NJW4302 QFP44 NJW4302 QFP44 NJW4302 QFP44 NJW4302 QFP44 TOC INT IN POUT DOUT INTOUT INTREF + BR F F/R L OGIC AMP S/S PR OTEC TION ...
Page 2
NJW4302 PIN DESCRIPTION SYMBOL PIN No. DESCRIPTION H1+,H1- 33, 34 Hall input pins H2+,H2- 35, 36 Positive input terminal is defined as IN H3+,H3- 37, 38 Positive input is defined Output pins(for fixed current ...
Page 3
FG IN amplifier reverse rotation input. FGOUT 30 FG amplifier output. FGSOUT 29 FG amplifier output(after the schmitt) Open collector output Output current detection Connect a resistor between this pin and GND pin.The output limitation maximum ...
Page 4
NJW4302 FUNCTIONAL DESCRIPTION 1. VCO circuit The variable range of PLL circuit is determined by two factors: VCO frequency determined by RC value connected to Pin 15 and Pin 16 and VCO loop filter constants. VCO frequency range must be ...
Page 5
Brake Switch NJW4302 uses a short brake method that turns on all phase of upper side transistors for braking. During the time, all lower side transistors are turned off. 8. VREG pin/VSH pin NJW4302 includes a regulator to generate ...
Page 6
NJW4302 ABSOLUTE MAXIMUM RATING P ARAMETER Ma ximum supply voltage Ma ximum input current Output current Operating temperature Storage temperature Power dissipation ALLOWABLE MAXIMUM RANGES/Ta=25 C PARAMETER Input current range FG Schmitt output applied voltage FG Schmitt output current Lock ...
Page 7
ELECTRICAL CHARACTERISTICS / Ta=25 C,V+=5.0V PARAMETER SYMBOL Supply current Supply current 2 I CC2 Output saturation voltage V O Output current Output leakage current I (leak) O Output off voltage V O HALL AMPLIFIER PARAMETER Input bias ...
Page 8
NJW4302 CURRENT LIMITING OPERATION PARAMETER SYMBOL Limiter FG AMPLIFIER PARAMETER Input offset voltage Input bias current Output low-level voltage Output high-level voltage FG input sensitivity Schmitt amplifier for next stage Operating frequency range Open loop gain FGSO OUTPUT PARAMETER Output ...
Page 9
INTEGRATER AMPLIFIER PARAMETER SYMBOL Input offset voltage V IO Input bias current I B Output high-level voltage V OH Output low-level voltage V OL Open loop gain AV( Gain-band width product GBW( Reference voltage V B FILTER AMPLIFIER (PLL COUNTER) ...
Page 10
NJW4302 CLK AMPLIFIER PARAMETER SYMBOL Input high-level voltage V Input low-level voltage V Hysteresis Pull-Up resistance R Input frequency N1 AMPLIFIER PARAMETER SYMBOL Input high-level voltage V Input low-level voltage V Hysteresis Pull-Up resistance R N2 AMPLIFIER PARAMETER SYMBOL Input ...
Page 11
SPEED DISCRIMINATOR COUNT TABLE N1 High or Open High or Open High or Open Low Low High or Open Low Low THREE PHASE LOGIC TRUTH TABLE F/R ...
Page 12
NJW4302 TYPICAL APPLICATION 47u VSH 75k C 1 1500p C 2 0.047u R 2 20k C 3 100p - PVCC VCC VREG ...
Page 13
TYPICAL CHARACTERISTICS NJW4302 - 13 - ...
Page 14
NJW4302 TYPICAL CHARACTERISTICS (Ta=25degC,With standard device ...
Page 15
APPLICATION NOTE FG Amplifier FG Amplifier consists of input differential amplifier and output Schmitt-trigger comparator. Input amplifier is constructed as low-pass filter with external resistors and capacitors to reduce noise. The amplifier output level should be over 250mVp-p to adjust ...
Page 16
NJW4302 FG interfac for logic output device The circuit below interface for logic output device (i.e. Hall IC and optical encoder). Two external resistors are required to adjust the input voltage within the common mode input voltage ...
Page 17
FG Input Internal FG Amplifier is a differential amplifier and both inputs and output are connected to the pin. The DC gain of this amplifier is for compensation or ...
Page 18
NJW4302 Recirculation Diodes Recirculation diodes are recommend to use Shottkey-burrier type. Forward voltage “VF” and reverse returning time “trr” are contributed for power dissipation [CAUTION] The specifications on this databook are only given for information , without ...