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LB1876 Datasheet

3-phase Brushless Motor Driver

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Ordering number : EN6201B
LB1876
Monolithic Digital IC
For Polygon Mirror Motors
3-phase Brushless Motor Driver
http://onsemi.com
Overview
The LB1876 is a driver for polygon mirror motors such as used in laser printers and similar equipment.
It incorporates all necessary circuitry (speed control + driver) on a single chip. Direct PWM drive enables drive with
low power loss.
Features
3-phase bipolar drive
Direct PWM drive technique
Built-in lower side output diode
Output current limiter
Reference clock input circuit (FG frequency equivalent)
PLL speed control circuit
Phase lock detector output (with masking function)
Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protection,
etc.
Brake method switching circuit (free-run or reverse torque)
5V regulator output
Power save function
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
Maximum output current
Allowable power dissipation
VCC max
IO max
Pd max1
t 500ms
Independent IC
Pd max2
Mounted on a specified board*
Operating temperature
Topr
Storage temperature
Tstg
*Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
Ratings
30
2.5
0.9
2.1
-20 to +80
-55 to +150
Unit
V
A
W
W
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
31109 MS/61202RM (OT)/62599RM (KI) No.6201-1/12


  ON Semiconductor Electronic Components Datasheet  

LB1876 Datasheet

3-phase Brushless Motor Driver

No Preview Available !

Allowable Operating Ranges at Ta = 25°C
Parameter
Power supply voltage range
5V regulated output current
LD pin voltage
FGS pin voltage
LD pin output current
FGS pin output current
Symbol
VCC
IREG
VLD
VFGS
ILD
IFGS
LB1876
Conditions
Electrical Characteristics at Ta = 25°C, VCC = VM = 24V
Parameter
Symbol
Conditions
Current drain
5V Regulated Output
ICC1
ICC2
Output voltage
VREG
Voltage fluctuation
Load fluctuation
Temperature coefficient
Output Block
ΔVREG1
ΔVREG2
ΔVREG3
Output saturation voltage
Output leak current
Lower side diode forward voltage
Hall Amplifier Block
VOsat1
VOsat2
IOleak
VD1
VD2
Input bias current
Common mode input voltage range
Hall input sensitivity
Hysteresis width
Input voltage L H
Input voltage H L
FG/Schmitt Block
IHB
VICM
VIN(HA)
ΔVIN(HA)
VSLH
VSHL
Input bias current
Common mode input voltage range
Input sensitivity
Hysteresis width
Input voltage L H
Input voltage H L
PWM Oscillator
IB(FGS)
VICM(FGS)
VIN(FGS)
ΔVIN(FGS)
VSLH(FGS)
VSHL(FGS)
Output High level voltage
Output Low level voltage
External capacitor charge current
Oscillator frequency
VOH(PWM)
VOL(PWM)
ICHG
f(PWM)
Amplitude
V(PWM)
FGS Output
Output saturation voltage
Output leak current
CSD Oscillator
VOL(FGS)
IL(FGS)
Output High level voltage
Output Low level voltage
Amplitude
VOH(CSD)
VOLCSD)
V(CSD)
External capacitor charge current
External capacitor discharge current
Oscillator frequency
ICHG1
ICHG2
f(CSD)
*Design target value, Do not measurement.
Quiescent Current
VCC = 9.5 to 28V
IO = -5 to -20mA
Design target value*
IO = 1.0A, VO(SINK) + VO(SOURCE)
IO = 2.0A, VO(SINK) + VO(SOURCE)
ID = -1.0A
ID = -2.0A
VPWM = 2V
C = 3000pF
IFGS = 7mA
C = 0.068μF
Ratings
9.5 to 28
0 to -20
0 to 28
0 to 28
0 to 15
0 to 10
Unit
V
mA
V
V
mA
mA
Ratings
Unit
min typ max
17 22 mA
3.6 5.0 mA
4.65
5.0
5.35
V
50 100 mV
30 100 mV
0 mV/°C
2.0 2.5 V
2.6 3.2 V
100 μA
1.2 1.5 V
1.5 1.9 V
-2 -0.5
μA
0
VREG-2.0
V
80 mVp-p
15 24 42 mV
12 mV
-12 mV
-2 -0.5
μA
0
VREG-2.0
V
80 mVp-p
15 24 42 mV
12 mV
-12 mV
2.5
1.2
-125
1.05
2.8
1.5
-95
22
1.27
3.1 V
1.8 V
-75 μA
kHz
1.50 Vp-p
0.15
0.5 V
10 μA
2.65
0.75
1.75
-13.5
5.5
3.0 3.3 V
0.9 1.1 V
2.1 2.3 Vp-p
-9 -5.5 μA
9 13.5 μA
30 Hz
Continued on next page.
No.6201-2/12


Part Number LB1876
Description 3-phase Brushless Motor Driver
Maker ON Semiconductor
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LB1876 Datasheet PDF






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