The LB11620T is a direct PWM drive predriver IC that is optimal for three-phase power brushless motors. A motor
driver circuit with the desired output capability (voltage and current) can be implemented by adding discrete transistors
or other power devices to the outputs of this IC. Since the LB11620T is provided in a miniature package, it is also
appropriate for use with miniature motors as well.
Features
•
Three-phase bipolar drive
•
Direct PWM drive (input of either a control voltage or a variable-duty PWM signal)
•
Built-in forward/reverse switching circuit
•
Full complement of protection circuits (current limiter, low-voltage, and automatic recovery lock (motor constraint)
protection circuits)
•
Selectable Hall sensor signal pulse output
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Supply voltage 1
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO max
Pd max
Topr
Tstg
VCC pin
UL, VL, WL, UH, VH, WH pins
*Mounted on a circuit board.
Conditions
Ratings
18
30
0.8
-20 to +100
-55 to +150
Unit
V
mA
W
°C
°C
* Mounted on a circuit board : 114.3mm×76.1mm×1.6mm, glass epoxy 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
O0808 MS / 22807 MS PC 20061227-S00002 No.A0662-1/11
LB11620T
Recommended Operating Ranges
at Ta
=
25°C
Parameter
Supply voltage range 1-1
Supply voltage range 1-2
Output current
5 V constant voltage output current
HP pin voltage
HP pin output current
RD pin voltage
RD pin output current
Symbol
VCC1-1
VCC1-2
IO
IREG
VHP
IHP
VRD
IRD
VCC pin
VCC pin, with VCC shorted to VREG
UL, VL, WL, UH, VH, WH pins
Conditions
Ratings
8 to 17
4.5 to 5.5
25
-30
0 to 17
0 to 15
0 to 17
0 to 15
Unit
V
V
mA
mA
V
mA
V
mA
Electrical Characteristics
at Ta
=
25°C, VCC = 12V
Parameter
Supply voltage 1
Symbol
ICC1
Conditions
min
Ratings
typ
12
max
16
mA
Unit
5V constant voltage output
(VREG pin)
Output voltage
Line regulation
Load regulation
Temperature coefficient
VREG
ΔVREG1
ΔVREG2
ΔVREG3
VCC = 8 to 17V
IO = -5 to -20mA
Design target
4.7
5.0
40
10
0
5.3
100
30
V
mV
mV
mV/°C
Low-voltage protection circuit
(VREG pin)
Operating voltage
Clear voltage
Hysteresis
Output Block
Output voltage 1-1
Output voltage 1-2
Output voltage 2
Output leakage current
Hall Amplifier Block
Input bias current
Common-mode input voltage range 1
Common-mode input voltage range 2
Hall input sensitivity
Hysteresis
Input voltage low
→
high
Input voltage high
→
low
PWM Oscillator
(PWM pin)
High-level output voltage
Low-level output voltage
External capacitor charge current
Oscillator frequency
Amplitude
VOH (PWM)
VOL (PWM)
ICHG
f (PWM)
V (PWM)
VPWM = 2.1V
C = 2000pF
1.4
2.75
1.2
-120
3.0
1.35
-90
22
1.6
1.9
3.25
1.5
-65
V
V
μA
kHz
Vp-p
ΔV
IN (HA)
VSLH (HA)
VSHL (HA)
IHB (HA)
VICM1
VICM2
When a Hall effect sensor is used
For single-sided input bias
(Hall IC application)
80
15
5
-20
24
12
-12
40
20
-5
mVp-p
mV
mV
mV
-2
0.5
0
-0.5
VCC-2.0
VCC
μA
V
V
VOUT1-1
VOUT1-2
VOUT2
IOleak
Low level IO = 400μA
Low level IO = 10mA
High level IO = -20mA
VCC-1.1
0.2
0.9
VCC-0.9
10
0.5
1.2
V
V
V
μA
VSDL
VSDH
ΔVSD
3.5
3.95
0.3
3.7
4.15
0.45
3.9
4.35
0.6
V
V
V
Continued on next page
No.A0662-2/11
LB11620T
Continued from preceding page.
Parameter
EI+ pin
Input bias current
Common-mode input voltage range
Input voltage 1
Input voltage 2
Input voltage 1L
Input voltage 2L
Input voltage 1H
Input voltage 2H
HP pin
Output saturation voltage
Output leakage current
CSD oscillator
(CSD pin)
High-level output voltage
Low-level output voltage
External capacitor charge current
External capacitor discharge current
Charge/discharge current ratio
RD pin
Low-level output voltage
Output leakage current
Current limiter circuit
(RF pin)
Limiter voltage
PWMIN pin
Input frequency
High-level input voltage
Low-level input voltage
Input open voltage
Hysteresis
High-level input current
Low-level input current
F/R pin
High-level input voltage
Low-level input voltage
Input open voltage
Hysteresis
High-level input current
Low-level input current
N1 pin
High-level input voltage
Low-level input voltage
Input open voltage
High-level input current
Low-level input current
VIH (N1)
VIL (N1)
VIO (N1)
IIH (N1)
IIL (N1)
VN1 = VREG
VN1 = 0V
2.0
0
VREG-0.5
-10
-130
0
-100
VREG
1.0
VREG
10
V
V
V
μA
μA
VIH (FR)
VIL (FR)
VIO (FR)
VIS (FR)
IIH (FR)
IIL (FR)
2.0
0
VREG-0.5
0.2
-10
-130
0.25
0
-90
VREG
1.0
VREG
0.4
10
V
V
V
V
μA
μA
f (PI)
VIH (PI)
VIL (PI)
VIO (PI)
VIS (PI)
IIH (PI)
IIL (PI)
VPWMIN = VREG
VPWMIN = 0V
2.0
0
VREG-0.5
0.2
-10
-130
0.25
0
-90
50
VREG
1.0
VREG
0.4
10
kHz
V
V
V
V
μA
μA
VRF
RF-GND
0.225
0.25
0.275
V
VRDL
IL (RD)
IO = 10mA
VO = 18V
0.2
0.5
10
V
μA
VOH (CSD)
VOL (CSD)
ICHG1
ICHG2
RCSD
VCSD = 2V
VCSD = 2V
Charge current /discharge current
2.7
0.7
-3.15
0.1
15
3.0
1.0
-2.5
0.14
18
3.3
1.3
-1.85
0.18
21
V
V
μA
μA
Times
VHPL
IHPleak
IO = 10mA
VO = 18V
0.2
0.5
10
V
μA
IB (CTL)
VICM
VCTL1
VCTL2
VCTL1L
VCTL2L
VCTL1H
VCTL2H
Output duty 100%
Output duty 0%
Design target value.
When VREG = 4.7V, 100%
Design target value.
When VREG = 4.7V, 0%
Design target value.
When VREG = 5.3V, 100%
Design target value.
When VREG = 5.3V, 0%
1.44
V
3.18
V
1.29
V
-1
0
3.0
1.35
2.82
1
VREG-1.7
μA
V
V
V
V
Symbol
Conditions
min
Ratings
typ
max
Unit
No.A0662-3/11
LB11620T
Package Dimensions
unit : mm (typ)
3260A
1.2
Pd max – Ta
Specified circuit board : 114.3×76.1×1.6mm
3
glass epoxy board
6.5
24
13
Allowable power dissipation, Pd max – W
0.8
Mounted on a circuit board
4.4
6.4
0.5
1
0.5
(0.5)
0.22
12
0.15
0.4
0.32
(1.0)
1.2max
0
–
20
0
20
40
60
80
100
120
0.08
Ambient temperature, Ta – °C
SANYO : TSSOP24(225mil)
Pin Assignment
VCC
24
VREG
23
EI+
22
N1
21
HP
20
F/R
19
PWMIN CSD
18
17
RD
16
PWM
15
IN3+
14
IN3-
13
LB11620T
1
GND
2
RF
3
WH
4
WL
5
VH
6
VL
7
UH
8
UL
9
IN1-
10
IN1+
11
IN2-
12
IN2+
• Three-Phase Logic Truth Table (IN = “H” indicates the state where IN+ > IN-)
F/R = “L”
IN1
1
2
3
4
5
6
H
H
H
L
L
L
IN2
L
L
H
H
H
L
IN3
H
L
L
L
H
H
IN1
L
L
L
H
H
H
F/R=“H”
IN2
H
H
L
L
L
H
IN3
L
H
H
H
L
L
PWM
VH
WH
WH
UH
UH
VH
UL
UL
VL
VL
WL
WL
Output
• PWMIN pin
Input state
High or open
Low
State
Output off
Output on
If the PWM pin is not used, the input must be held at the low level.
• N1 pin
Input state
High or open
Low
HP output
Three Hall sensor synthesized output
Single Hall sensor output
No.A0662-4/11
LB11620T
Pin Functions
Pin No.
1
2
Pin
GND
RF
Ground
Output current detection. The current detection resistor (Rf) voltage is sensed by the RF pin to implement current
detection.
The maximum output current is set by RF to be IOUT = 0.25/Rf.
7
5
3
8
6
4
10, 9
12, 11
14, 13
15
16
17
18
UH
VH
WH
UL
VL
WL
IN1+, IN1-
IN2+, IN2-
IN3+, IN3-
PWM
RD
CSD
PWMIN
Outputs
These are push-pull outputs.
Hall sensor inputs from each motor phase.
The logic high state indicates that IN+ > IN-.
If inputs are provided by a Hall effect sensor IC, the common-mode input range is expanded by biasing either the + or -
input.
Functions as both the PWM oscillator frequency setting pin and the initial reset pulse setting pin. Connect a capacitor
between this pin and ground.
Lock (motor constrained) detection state output. This output is turned on when the motor is turning and off when the lock
protection function detects that the motor has been stopped. This is an open collector output.
Sets the operating time for the lock protection circuit.
Connect a capacitor between this pin and ground. Connect this pin to ground if the lock protection function is not used.
PWM pulse signal input. The output goes to the drive state when this pin is low, and to the off state when this pin is high
or open. To use this pin for control, a CTL amplifier input such that the TOC pin voltage goes to the 100% duty state
must be provided.
19
20
21
22
23
24
F/R
HP
N1
EI+
VREG
VCC
Forward/reverse control input
Hall signal output (HP output). This provides either a single Hall sensor output or a synthesized 3-sensor output.
Hall signal output (HP output) selection
CTL amplifier + (noninverting) input. The PWMIN pin must be held at the low level to use this input for motor control
5V regulator output (Used as the control circuit power supply. A low-voltage protection circuit is built in.)
Connect a capacitor between this pin and ground for stabilization.
Power supply. Connect a capacitor between this pin and ground to prevent noise and other disturbances from affecting
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