Sanyo LB11981 Specifications
Ordering number : ENN6656A
42001RM (OT) No. 6656-1/7
Applications
Refrigerator fan motors
Features
• No Hall sensors required.
• No FG sensors required.
• Lock detection circuit (Can be set to operate in either
automatic recovery or latching mode.)
• Thermal shutdown circuit
• Current limiter circuit
• Low-voltage shutdown circuit
• Forward/reverse switching
• Supports both single- and dual-power supply circuits.
Package Dimensions
unit: mm
3222-HSOP28 (275 mil)
0.1
1.8max
7.6
1.0
114
0.3
0.8
1528
2.7
15.2
0.8
5.6
0.5
0.2
SANYO: HSOP28 (275 mil)
[LB11981]
LB11981
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Three-Phase Sensorless Motor Driver
Monolithic Digital IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Parameter Symbol Conditions Ratings Unit
Supply voltage 1 V
CC
max 30 V
Supply voltage 2 V
CC
max Power supply for output stage 30 V
Applied output voltage V
O
max 30 V
Applied input voltage V
I
max –0.3 to VCC+ 0.3 V
Maximum output current I
O
max 1.0 A
Allowable power dissipation Pdmax Independent IC 0.5 W
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C
Specifications
Maximum Ratings at Ta = 25°C
No. 6656-2/7
LB11981
Parameter Symbol Conditions Ratings Unit
Supply voltage 1 V
CC
*8 (5) to 28 V
Supply voltage 2 V
CC
M 8 to 28 V
Operating Conditions at Ta = 25°C
Note: * This device should normally be used with VCC≥ 8 V. If used with 5 V ≤ VCC< 8 V, short the VCCand V
REG
pins together. Note that in this case the
electrical characteristics of the device become more easily influenced by fluctuations in the V
CC
supply voltage.
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply current 1 ICC 8.8 11 13.2 mA
Supply current 2 I
CCM
LKC = 5 V 480 600 720 µA
Internal power supply V
REF
4.75 5.0 5.25 V
Internal supply load regulation ∆V
REF
ILOAD = –5 mA 30 50 mV
Output saturation voltage 1 V
OSAT
1 IO = 0.4 A, Source + Sink 1.4 1.7 V
Output saturation voltage 2 V
OSAT
2 IO = 0.8 A, Source + Sink 2.0 2.4 V
MCOM pin common-mode input voltage range V
IC
0 VCC– 2 V
PCOUT pin output current 1 IPCOU Source side –120 –100 –80 µA
PCOUT pin output current 2 IPCOD Sink side 80 100 120 µA
VCOIN pin input current IVCOIN VCOIN = 4 V 1 2 µA
Minimum VCO frequency fVCOmin VCOIN = open 0.85 1 1.15 kHz
Maximum VCO frequency fVCOmax VCOIN = 5 V 36 42 48 kHz
Maximum CX pin charge/discharge current Icxmax VCOIN = 5 V 550 650 750 µA
Minimum CX pin charge/discharge current Icxmin VCOIN = open 11 14 17 µA
Thermal shutdown circuit operating temperature TTSD Design target value * 150 180 210 °C
Thermal shutdown circuit hysteresis ∆TTSD Design target value * 15 °C
BFGO pin output saturation voltage VsatFG ILOAD = 1 mA 0.2 0.4 V
[Lock Detection Circuit]
LKC pin voltage threshold Vth 3.7 4 4.3 V
Threshold level hysteresis ∆Vth 1.8 2 2.2 V
LKC pin charge current Ichg V (LKC) = 0 V 0.8 1 1.2 µA
LKC pin discharge current Idis V (LKC) = 4.2 V 0.52 0.65 0.78 µA
LAT pin input current ILAT V (LAT) = 0 V, V (LKC)= 4.2 V 3.2 4 4.8 µA
LKO pin saturation voltage VsatLKO ILOAD = 1 mA, V(LKC) = 4.2 V 0.2 0.4 V
[Low-Voltage Cutoff Circuit]
Low-voltage detection voltage VT VREG pin detection 38 4 4.2 V
Hysteresis ∆VF 150 180 210 mV
[Forward/Reverse Circuit]
INFR pin input current IINFR V (INFR) = 5 V 38 43 48 µA
INFR pin high-level input threshold voltage VINH 3.0 V
INFR pin low-level input threshold voltage VINL 1.0 V
Electrical Characteristics at Ta = 25°C, VCC= V
CCM
= 18 V
Note: * Design target values are not tested.
No. 6656-3/7
LB11981
Pin Functions
Pin No. Pin Function
1 VCOIN VCO circuit voltage input. Inputs the PCOUT pin voltage filtered by an RC circuit.
2 CX
The value of the capacitor between this pin and ground determines the operating frequency range and the minimum operating
frequency of the VCO circuit.
3 LKC
Connection for the lock detection circuit capacitor. The value of the capacitor between this pin and ground determines the lock
state monitoring period. The lock detection circuit can be disabled by connecting this pin to ground.
4 LAT Lock detection circuit mode switching input
5 INFR Forward/reverse switching input
6 LKO Lock state detection signal. (A pull-up resistor is required.)
7 GND Ground
8 BFGO Motor back electromotive force detection FG output (3 phases combined). (A pull-up resistor is required.)
9 R
FS
Current limit sensing. The output current can be detected and current limiting applied by connecting this pin to the RF pin.
10 R
F
Lowest potential of the motor driver output transistor. The value of the resistor between this pin and ground determines the
current that flows in the output transistor.
11, 12, 14 N.C Not connected
13 U
OUT
15 V
OUT
Motor driver output
16 W
OUT
17 N.C Not connected
18 MCOM Motor coil midpoint input. The coil voltage waveform is detected using this voltage as the reference level.
19 FC
Frequency characteristics correction. Closed loop oscillation in the current control system can be stopped by inserting a
capacitor between this pin and ground.
20 V
CCM
Motor drive output stage power supply
21 U
IN
Coil waveform detection comparator input
22 V
IN
These are connected to the outputs for each phase through internal 10 kΩ resistors.
23 W
IN
24 V
CC
Power supply
25 V
REG
Internal 5 V regulator output
26, 27 TEST Test pin. This pin must be left open during normal operation.
28 PC
OUTVCO
circuit PLL output
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