Owner manual

7
BCD Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR AM4967
Oct. 2008 Rev. 1. 2
Data Sheet
Parameter Symbol Conditions Min Typ Max Unit
Quiescent Current
I
Q1
Lock off 8 10 12
mA
I
Q2
Lock on 8 10 12
VREF Reference Voltage
V
REF
I
OUT
=5mA
4.5 5.0 5.5 V
Current Limit Voltage
V
LIM
186 200 215
mV
COSC High Level Voltage
V
OSCH
3.0 3.4 3.8 V
COSC Low Level Voltage
V
OSCL
0.9 1.1 1.3 V
COSC Frequency
f
OSC
C
L
=220pF
25.4 30 35.5 kHz
CT High Level Voltage
V
CTH
2.4 3.3 3.6 V
CT Low Level Voltage
V
CTL
1.0 1.3 1.6 V
CT Charge Current
I
CHG
V
CT
=0.5V
1.5 2 2.5 µA
CT Discharge Current
I
DHG
V
CT
=3.5V
0.13 0.2 0.25 µA
CT Charge and Discharge Ratio
R
CD
I
CHG
/I
DHG
8.5 10 14.5
Linear Start Charge Current
I
LS
V
LS
=1V
0.5 0.7 µA
OUT1B/OUT2B High Level Voltage
V
OBH
I
OUT
=10mA V
CC
-
1.8
V
CC
-
0.9
V
CC
V
OUT1B/OUT2B Low Level Voltage
V
OBL
I
OUT
=10mA
0.9 1.5 V
OUT1/OUT2 Low Level Voltage
V
OL
I
OUT
=10mA
0.45 0.8 V
FG Signal Hall Input Sensitivity
V
HN
I
HIN+,
I
HIN-
difference voltage
(include offset and hysteresis)
±10 mV
FG Saturation Voltage
V
SAT
I
SINK
=5mA
200 500 mV
FG Leakage Current
I
LFG
V
FG
=V
CC
30 µA
VPWM/VMIN Bias Current
I
PWMB
/I
VMINB
V
OSC
=V
PWM
/V
VMIN
=2V
0.1 3 µA
(V
CC
=12V, T
A
=25
o
C, unless otherwise specified.)
Electrical Characteristics