ENA0231 D

Ordering number : ENA0231A
LB1980JH
Monolithic Digital IC
3-Phase Brushless Motor Driver
http://onsemi.com
Overview
The LB1980JH is a 3-phase brushless motor driver that is particularly appropriate for automotive.
Functions
• 3-phase full-wave drive
• Built-in torque ripple correction circuit (variable correction ratio)
• Current limiter circuit
• Upper and lower side output stage over-saturation prevention circuit that does not require external capacitors.
• FG amplifier
• Thermal shutdown circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Symbol
Conditions
VCC max
Ratings
Unit
7
V
VS max
24
V
Maximum output current
IO max
1.3
A
Allowable power dissipation
Pd max
Mounted on a board *
1.81
W
Independent IC
0.77
W
Operating temperature
Topr
-30 to 85
°C
Storage temperature
Tstg
-55 to +150
°C
* Mounted on a 76.1mm×114.3mm×1.6mm, glass epoxy printed circuit board.
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
62707 MS IM / 80906 / 13006 MH IM 20051205-S00014 No.A0231-1/7
LB1980JH
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Symbol
Conditions
Ratings
Unit
VS
5 to 22
VCC
Hall input amplitude
GSENSE pin input range
VHALL
VGSENSE
Between the hall inputs
With respect to the control system ground
V
4.5 to 5.5
V
±30 to ±80
mVo-p
-0.20 to +0.20
V
Electrical Characteristics at Ta = 25°C, VCC = 5V,VS = 15V
Parameter
Symbol
Ratings
Conditions
min
VCC supply current
ICC
typ
Unit
max
RL=∞, VCTL=0V, VLIM=0V (Quiescent)
12
18
mA
VO sat1
IO=500mA, Rf=0.5Ω, Sink+Source
VCTL=VLIM=5V(With saturation prevention)
2.1
2.6
V
VO sat2
IO=1.0mA, Rf=0.5Ω, Sink+Source
VCTL=VLIM=5V(With saturation prevention)
2.6
3.5
V
1.0
mA
Outputs
Output saturation voltage
Output leakage current
IO leak
FR
FR pin input threshold voltage
FR pin input bias current
VFSR
2.25
IB(FSR)
-5.0
2.50
2.75
V
mA
Control
CTLREF pin voltage
CTLREF pin input range
CTL pin input bias current
VCREF
2.05
VCREFIN
1.50
IB(CTL)
2.15
With VCTL=5V and the CTLREF pin open
2.25
V
3.50
V
4.0
μA
CTL pin control start voltage
VCTL(ST)
With Rf=0.5Ω, VLIM=5V, IO≥10mA,
Hall input logic fixed (U, V, W=H, H, L)
2.00
2.15
2.30
V
CTL pin control Gm
Gm(CTL)
With Rf=0.5Ω, ΔIO=200mA,
Hall input logic fixed (U, V, W=H, H, L)
0.46
0.58
0.70
A/V
Voff(LIM)
With Rf=0.5Ω, VCTL=5V, IO≥10mA,
Hall input logic fixed (U, V, W=H, H, L)
140
200
260
mV
With VCTL=5V and the VCREF pin open
-2.5
With Rf=0.5Ω, VCTL=5V, VLIM=2.06V
Hall input logic fixed (U, V, W=H, H, L)
830
Current Limiter
LIM current limit offset voltage
LIM pin input bias current
LIM pin current control level
IB(LIM)
ILIM
μA
900
970
mA
Hall Amplifier
Hall amplifier input offset voltage
Voff(HALL)
+6
mA
Hall amplifier input bias current
IB(HALL)
1.0
3.0
μA
VCM(HALL)
1.3
3.3
V
Hall amplifier common-mode
-6
input voltage range
TRC
Torque ripple correction ratio
TRC
ADJ pin voltage
VADJ
For the high and low peaks in the
Rf waveform when IO=200mA.
(Rf=0.5Ω, with the ADJ pin open) *1
9
2.37
2.50
%
2.63
V
FG Amplifier
FG amplifier input offset voltage
Voff(FG)
FG amplifier input bias current
IB(FG)
FG amplifier output saturation
VO sat (FG)
voltage
FG amplifier voltage gain
FG amplifier common-mode
VG(FG)
-8
+8
-100
nA
Sink side, for the load provided by the internal
pull-up resistor
For the open loop state with f=10kHz
VGM(FG)
41.5
mV
44.5
0.5
0.5
V
47.5
dB
4.0
V
0.325
V
input voltage
Saturation
Saturation prevention circuit
VO sat(DET)
lower side voltage setting
The voltages between each OUT and
Rf pair when IO=10mA, Rf=0.5Ω, and
VCTL=VLIM=5V
0.175
0.25
TSD
TSD operating temperature
Hysteresis width
TSD
Design target value *2
180
°C
ΔTSD
Design target value *2
20
°C
Notes : *1. The torque ripple correction ratio is determined as follows from the Rf voltage waveform.
*2. Parameters that are indicated as design target values in the conditions column are not tested.
No.A0231-2/7
LB1980JH
Vp
Vb
For each Hall logic setting
Ground level
Correction ratio =
25(Vp--Vb)
1005(%)
Vp--Vb
Package Dimensions
unit : mm (typ)
3233B
Pd max -- Ta
Allowable power dissipation, Pd max -- W
2.0
HEAT SPREADER
15.2
(6.2)
0.65
7.9
10.5
15
(4.9)
28
1
14
0.8
0.25
2.0
0.3
(2.25)
0.1
2.7
1.6
1.2
0.94
Independent IC
0.8
0.77
0.40
0.4
Mounted on a 76.1mm×114.3mm×1.6 mm
glass epoxy printed circuit board
0
-30 -20
2.45max
(0.8)
1.81
0
20
40
80 85
60
Ambient temperature, Ta -- °C
100
ILB01756
SANYO : HSOP28H(375mil)
VIN-
VIN+
UIN-
UIN+
21
20
19
18
17
16
15
8
9
10
11
12
13
14
CTLREF
LIM
FC
22
CTL
VS
23
WIN+
ADJ
24
WIN-
RF(PWR)
25
FGIN+
NC
26
VCC
NC
27
FGIN-
UOUT
28
FRAME
GND
VOUT
Pin Assignment
3
4
5
6
7
NC
NC
RF(SENSE)
GSENSE
FR
GND
FGOUT
2
FRAME
GND
1
WOUT
LB1980JH
Top view
No.A0231-3/7
LB1980JH
Block Diagram
FC
14
Output stage
22 VS
UIN+ 15
Hall input synthesis block
(linear matrix)
+
VIN+ 17
V
VIN- 18
+
WIN+ 19
Synthesized output logarithmic
compression block
U
UIN- 16
Antilogarithm
conversion
and
differential
distribution
Upper side
saturation
prevention
control
+
gm
W
WIN- 20
+
U
27 UOUT
V
28 VOUT
W
1 WOUT
24 Rf(PWR)
4 Rf(SENSE)
+
gm
Differential
distribution and
torque ripple
correction
block
CTL 11
+
Drive distribution circuit
and lower side saturation
prevention circuit
23 ADJ
Control
amplifier
+
+
CTLREF 12
+
Feedback
amplifier
About 0.435VCC
LIMREF
5 GSENSE
LIM 13
FR 6
Forward /
reverse
selection
FG amplifier
TSD
+
9 FGIN+
10 FGOUT
GND 7
VCC 21
8 FGIN-
Reference
voltage
Bandgap 1.2V
No.A0231-4/7
LB1980JH
Pin Function
Pin No.
Pin Name
27
U phase output, Spark killer diodes are built-in.
28
UOUT
VOUT
1
WOUT
W phase output, Spark killer diodes are built-in.
4
5
V phase output, Spark killer diodes are built-in.
Rf
Output current detection. The control block current limiter
operates using the resistor Rf connected between these
(PWR)
22
VCC
VS
(SENSE)
Rf
Equivalent circuit
Function
27
28
1
pins and ground. Also, the lower side saturation
150μA
Lower side saturation
prevention circuit input block
VCC
OUT
prevention circuit and the torque ripple correction circuit
200Ω
operate based on the voltages across this resistor. It is
30kΩ
10μA
especially important to note that, since the saturation
prevention level is set using this voltage, the lower side
200Ω
saturation prevention circuit will become less effective in
4
Rf (SENSE)
24
the high current region if the value of Rf is lowered
Rf (PWR)
excessively. Also, the PWR and SENSE pins must be
connected together.
22
VS
5
GSENSE
Output block power supply
Ground sensing. The influence of the common ground
impedance on Rf can be excluded by connecting this pin
to nearest ground for the Rf resistor side of the motor
ground wiring that includes Rf. (This pin must not be left
open.)
6
FR
Forward / reverse selection. The voltage applied to this
pin selects the motor direction (forward or reverse).
VCC
(Vth=2.5V at VCC=5V (typical))
23
ADJ
VCC
VCC
VCC
20μA
Used for external adjustment of the torque ripple
200μA
10kΩ
correction ratio. Apply a voltage externally with a
low-impedance circuit to the ADJ pin to adjust the
correction ratio. The correction ratio falls as the applied
voltage is increased, and increases as the applied voltage
FR
ADJ
6
10kΩ
23
200Ω
500Ω
6kΩ
1/2
VCC
decreases. The torque ripple correction ratio can be
10kΩ
6kΩ
10kΩ
modified by factors in the range 0 to 2 times the ratio that
applies when his pin is left open. (The pin voltage is set to
about VCC / 2 internally, and the input impedance is about
5kΩ.)
7
GND
Ground for all circuits other than the output transistors.
The lowest potential of the output transistors is that of the
Rf pin.
8
FGIN-
Input used when the FG amplifier is used as an inverting
VCC
input. A feedback resistor must be connected between
FGOUT and this pin.
9
FGIN+
Non-inverting input used when the FG amplifier is used as
a differential input amplifier. No bias is applied internally.
5μA
FGIN(−)
FGIN(+)
9
8
300Ω
10
FGOUT
FG amplifier output. There is an internal resistive load.
VCC
300Ω
VCC
VCC
2kΩ
FGOUT
10
300Ω
14
FC
Speed control loop frequency characteristics correction.
10kΩ
14
FC
Continued on next page.
No.A0231-5/7
LB1980JH
Continued from preceding page.
Pin No.
Pin Name
11
CTL
Equivalent circuit
Function
Speed control input. The control implemented is fixed
current drive controlled by current feedback from Rf.
VCC
Gm=0.58 / V (typical) when Rf=0.5W
VCC
CTL
12
CTLREF
Control reference voltage. While this pin is set to about
11
0.43×VCC internally, this voltage can be modified by
applying a voltage from a low-impedance circuit.
VCC
10kΩ
200μA
max
12 CTLREF
200Ω
200Ω
LIM
7.5kΩ
13
(The input impedance is about 4.3kΩ).
13
LIM
200Ω
100μA
Current limiter function control. The output current can be
varied linearly by applying a voltage to this pin.
The slope is 0.5A / V (typical) when Rf=0.5Ω.
UIN+
UIN-
U phase Hall element inputs.
VIN+
VIN-
V phase Hall element inputs.
W phase Hall element inputs.
20
WIN+
WIN-
21
VCC
15
16
17
18
(+) input
Logic high is defined as states where IN+>IN-.
(--) input
15
17
19
16
18
20
200Ω
Logic high is defined as states where IN+>IN-.
200Ω
100μA
19
Logic high is defined as states where IN+>IN-.
Power supply for all internal blocks other than the output
block. This voltage must be stabilized so that noise and
ripple do not enter the IC.
Truth Table and Control Functions
Hall input
Source → Sink
Phase V → Phase W
1
Phase W → Phase V
Phase U → Phase W
2
Phase W → Phase U
Phase U → Phase V
3
Phase V → Phase U
Phase W → Phase V
4
Phase V → Phase W
Phase W → Phase U
5
Phase U → Phase W
Phase V → Phase U
6
Phase U → Phase V
FR
U
V
W
H
H
L
H
L
H
H
L
L
H
L
H
L
H
L
Note: In the FR column, “H” refers to a voltage of
2.75V or higher, and “L” refers to 2.25V or
lower (when VCC=5V.)
Note: In the Hall input column, “H” refers to the state
in the corresponding phase where the +input is
at a potential at least 0.01V higher than the
-input, and “L” refers to the state where the
-input is at a potential at least 0.01V higher than
the +input.
H
L
L
H
L
H
L
H
H
L
H
L
H
L
L
Note: Since the drive technique adopted is a 180° technique, phases other than the sink and source phase do not turn off.
Control Function and Current Limiter Function
VCTL=5V
CTLREF: OPEN
IOUT
IOUT
VLIM=5V
CTLREF: OPEN
Gm1=0.58A / V typ
2.10V typ
0
1
2
Slope: 0.50A / V typ
3
VCTL
Control Characteristics
4
5
0
1
2
200mA / V typ
3
VLIM
4
Control Limiter Characteristics
No.A0231-6/7
LB1980JH
Application Circuit Example
GaAs Hall devices
are recommended.
Hall output
0.5Ω
Power system ground
Hall output
L
L
0.1μF
Voltage applied to the
ADJ pin
L
0.1μF
VS
Hall output
VCC
R
0.1μF
RF(PWR)
ADJ
VS
9
18
17
16
15
UIN+
NC
8
19
UIN-
NC
20
VIN+
UOUT
21
VIN-
22
WIN+
23
WIN-
24
FGIN+
25
VCC
26
FGIN-
27
FRAME
GND
28
VOUT
Hall input
6
7
10
FC
GND
5
LIM
FR
4
CTLREF
GSENSE
3
CTL
RF(SENSE)
2
FGOUT
NC
1
FRAME
GND
NC
LB1980JH
WOUT
VCC
11
12
13
14
0.1μF
0.1μF
1kΩ
75kΩ
Current limiter setting
voltage pin
CTLREF voltage pin
MR
Torque command
voltage pin
Forward / reverse
command voltage pin
VCC / 2 bias
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PS No.A0231-7/7
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