LS7362 View Datasheet(PDF) - LSI Corporation
Part Name
Description
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LS7362 Datasheet PDF : 6 Pages
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MAXIMUM RATINGS:
PARAMETER
Storage Temperature
Operating Temperature
1. Plastic
2. Ceramic
Voltage (any pin to Vss)
SYMBOL
TSTG
TA
TA
VMAX
VALUE
-65 to +150
-25 to +70
-55 to +125
-30 to +.5
UNIT
°C
°C
°C
Volts
DC ELECTRICAL CHARACTERISTICS:
(All Voltages Referenced to VDD)
Supply Voltage
Supply Current
(Excluding Outputs)
Input Specifications:
BRAKE, ENABLE, CS1, CS2
S1, S2, S3, FORWARD/REVERSE
Voltage (Logic "1")
(Logic "0")
OVERCURRENT SENSE (See Note)
Voltage (Logic "1")
(Logic "0")
Oscillator:
Frequency Range
External Resistor Range
SYMBOL
VSS
IDD
RIN
VIH
VIL
VIH
VIL
Fosc
Rosc
MIN
5
-
-
VSS-1.5
0
(VSS/2)+.25
0
0
22
TYP
-
4.5
150
-
-
-
-
1/RC
-
MAX
28
UNIT
Volts
6
mA
-
KΩ
VSS
VSS-4.0
Volts
Volts
VSS
Volts
(VSS/2)-.25 Volts
100
kHz
1000
kΩ
NOTE: Theoretical switching point of the OVERCURRENT SENSE input is one half of the power supply determined by an internal bias
network in manufacturing. Tolerances cause the switching point to vary plus or minus .25 Volts. After manufacture, the switching point
remains fixed within 10 mV over time and temperature. The input switching sensivity is a maximum of 50mV. There is no hysteresis on
the OVERCURRENT SENSE input.
TABLE I
OUTPUT CURRENT LIMITING RESISTOR SELECTION TABLE
POWER
OUTPUT CURRENT
SUPPLY
(VOLTS)
20 15 10 7.5 5 2.5 mA
6
** ** ** ** ** 2.0
9
** ** ** .94 1.6 3.2
12
.35 .53 .88 1.2 2.1 4.0
15
.54 .76 1.2 1.7 2.6 5.3 Resistance
18
* 1.0 1.6 2.1 3.2 6.5 (kΩ)
21
* * 1.9 2.5 3.8 7.7
24
* * 2.2 2.9 4.4 9.0
28
* * * 3.5 5.3 10.3
*causes excessive power dissipation
**exceeds max current possible for this voltage
TABLE II
For Power Supply 5-28 Volts
R13 (K ohms)
Output Voltage
10
Vss -0.5
5.1
Vss -1.0
2.7
Vss -2.0
SEQUENCE SELECT CS1 CS2
00
ELECTRICAL SEPARATION (-60°-)
SENSE INPUTS
S1 S2 S3
000
100
110
111
011
001
TABLE III
OUTPUT COMMUTATION SEQUENCE
THREE PHASE OPERATION
CS1 CS2 CS1 CS2 CS1 CS2 FORWARD/REVERSE=1
01
1 011
(-120°-)
(-240°-) (-300°-) OUTPUTS DRIVERS
S1 S2 S3 S1 S2 S3 S1 S2 S3 ENABLED A B C
001
0 1 0 0 1 1 O1, O5 + - Off
101
1 1 0 1 1 1 O3, O5 Off - +
100
1 0 0 1 1 0 O3, O4
- Off +
110
1 0 1 1 0 0 O2, O4
-
+ Off
010
0 0 1 0 0 0 O2, O6 Off + -
011
0 1 1 0 0 1 O1, O6
+ Off -
FORWARD/REVERSE=0
OUTPUTS
ENABLED
O2, O4
O2, O6
O1, O6
O1, O5
O3, O5
O3, O4
DRIVERS
ABC
- + Off
Off + -
+ Off -
+ - Off
Off - +
- Off +
010
101
000
111
000
111
010
101
ALL DISABLED
ALL DISABLED
ALL DISABLED
ALL DISABLED
The OVERCURRENT input (BRAKE low) enables external output drivers in normal sequence when more negative than Vss/2 and disables
all external output drivers when more positive than Vss/2. The OVERCURRENT is sensed continuously, and sets a flip flop which is reset
by the rising edge of the ENABLE input or the sawtooth OSCILLATOR. (See description under OVERCURRENT SENSE.)
7362-110292-3
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