NJM2660A
Single-Phase DC Brushless Motor Pre-driver IC
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
The NJM2660A is a Single-phase DC brushless motor
pre-driver IC. It incorporates Lock Detect / Auto Protection Circuit
and totem-pole pre - drivers for external power MOS-FET.
The turn ON / turn OFF ratio at Auto Protection Release was
set in 1:10 easy-to-use.
Two comparator are built into NJM2660A for the temperature
adjustable speed control or over current detection.
NJM2660AM
s
FEATURES
•
Operating Voltage
4.5 to 30V
•
Absolute Maximum Voltage 36V
•
Totem-pole Output
（Lower
Arm）
•
Internal Lock Detect /Auto Protection Release Circuit
•
Lock Alarm Output Terminal
•
Internal comparator 2 circuit
•
Package Outline
DMP16 SSOP16
NJM2660AV
s
PIN CONFIGURATION
CD
OUT1B
VCC
Reference
Bias
H+
H-
LOGIC
Control
Dead
Time
Control
OUT2B
VCC
OUT1A
Ct
GND
VCC
COUT A
Cin-A
Cin+A
Lock
Alarm
Lock Detect
& Re-start
OUT2A
LA
Cin-B Cin+B
-1-
NJM2660A
s
BLOCK DIAGRAM
1
16
1:
2:
3:
4:
5:
6:
7:
8:
Vcc
H1
H2
LA
COUT A
Cin+A
Cin-A
CD
9:
10:
11:
12:
13:
14:
15:
16:
GND
Ct
Cin-B
Cin+B
OUT2B
OUT1B
OUT2A
OUT1A
s
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Hall Input Voltage Range
Hall Input Differential Voltage
A ch Output Current
B ch Output Current
Lock Alarm Output Voltage
Lock Alarm Output Current
Comparator Input Voltage Range
Comparator Output Voltage
Comparator Output Current
Power Dissipation
Operating Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
s
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Hall Input Voltage Range
Comparator Input Voltage Range
Junction Temperature
SYMBOL
Vcc
Vhi
Vci
Tj
RATINGS
4.5
∼30
0
∼
Vcc-2
0
∼
Vcc-2
-20
∼
125
UNIT
V
V
V
°C
SYMBOL
Vcc
VHcmr
VHdff
IoMA
IoMB
VLA
IoLA
VCcmr
V
O
C
I
O
C
P
D
Topr
Tj
Tstg
RATINGS
36
-0.3
∼
Vcc
2
50
50
36
20
-0.3
∼
Vcc
36
20
435(DMP)
375(SSOP)
-40
∼
85
-40
∼
150
-55
∼
150
UNIT
V
V
V
mA
mA
V
mA
V
V
mA
mW
mW
°C
°C
°C
NOTE
-
-
-
-
-
-
-
-
-
-
Device it self
-
-
-
(Ta=25°C)
NOTE
Ct=0
-
-
-
-2-
NJM2660A
s
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
s
Total
Operating Current
Icc
CONDITIONS
Vcc=12V
Vcc=24V
-
-
I
O
=-20mA
Io=10mA
Io=50mA
Io=20mA
Vcc=30V
Vo=30V
Cd=10nF
MIN.
-
-
-
-
-
-
-
-
-
-
5.0
(Ta=25°C, V
CC
=12V)
TYP.
MAX.
UNIT
8
10
20
0.5
0.3
1.8
0.3
16
1
350
-
-
1
4.0
0.4
10
3.3
0.85
0.25
2.5
2
30
-
10
80
1
2
30
12
15
-
-
-
0.7
2.2
0.7
20
3
-
-
0.5
3
5.5
0.6
-
3.6
1.00
-
-
7
200
-
-
300
3
-
-
V
V
s
s
mV
nA
V
V
mV
uA
mV
nA
mA
mA
mV
µA
V
V
V
V
V
µA
µs
V
V
µA
µA
µA
s
Input / Output
Hall Input Hysteresis Voltage
Hall Input Bias Voltage
A Upper Output Voltage
A Lower Output Voltage
B Output Voltage
Ach Output Crump Voltage
Bch Output Leak Voltage
Dead Time
Vhys
Ihbias
V
O
HA
V
O
LA
V
O
LB
V
CLMP
Ioleak
Td
V
LOP
Vlock
I
LA
leak
Ic
Idc
Ic/Idc
Vch
Vcl
Ton
Toff
VioA
IibA
VicmA
Isink
Vsat
I
CLEAK
VioB
IibB
Vo=1.5V
Isink=3mA
Vo=30V
-
-
Ct=0.47µF
Ct=0.47µF
-
-
-
Lock Alarm ON, I
LA
=5mA
V
LA
=30V
V
CT
=1.5V
V
CT
=1.5V
-
-
-
Vcc-2 Vcc-1.7
s
Lock Detection
Lock Protect Operation Voltage
Lock Alarm Output Voltage
Lock Alarm Leak Current
Charge Current
Discharge Current
Charge / Discharge Current Ratio
H Level Cense Voltage
Reversal Voltage
Auto Protection Release ON Time
Auto Protection Release OFF Time
-
-
-
-
-
3.0
0.70
-
-
-
-
0
∼
10
6
-
-
-
-
s
Comparator Ach
Input Offset Voltage
Input Bias Current
Input Common Monde Voltage Range
Output Sink Current
Output Saturation Voltage
Output Leak Current
s
Comparator Bch
Input Offset Voltage
Input Bias Current
A charge and discharge current ratio is set in general to a minimum of 7 and a maximum of 14.
-3-
NJM2660A
s
TIME CHART
Motor Locked
Lock Release
H+
H-
Out1B
Out1A
Out2B
Out2A
Cin+B
Cin-B
Ct
LA
Toff
Ton
Toff
Motor Lock protection period
Ton
=
Ct
×
s
DEAD TIME
Vch
−
Vcl
[
S
]
Ic
Toff
=
Ct
×
Vch
−
Vcl
[
S
]
Idc
H+
H-
Out1B
Out1A
Out2B
Td:Dead Time
Out2A
Td
=
35.4
×
10
3
×
Cd
[
S
]
-4-
NJM2660A
s
TYPICAL APPLICATIONS 1
•
Over Current Protection Application Circuit
VCC
+
1kohm
100kohm
0.1uF
10uF
6kohm
10kohm
10kohm
Hall+
VCC
H1
H2
OUT1A
OUT2A
OUT1B
4.3kohm
Hall-
LA
10k
CoutA
Cin+A
Cin-A
CD
NJM2660A
OUT2B
4.3kohm
Cin+B
Cin-B
CT
GND
Vz=6.2V
1nF
6kohm
1kohm
3.3nF
GND
1.5kohm
820pF
1ohm
1uF
-5-
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