LB11985H
Continued from preceding page.
Pin No. Symbol Pin Voltage
Description
10
WIN+
11
WIN–
W phase Hall element input.
Logic “H” is defined as the state where
WIN+ > WIN–.
12
VIN+
V phase Hall element input.
10
1.3 V to 3.3 V Logic “H” is defined as the state where
12
13
VIN–
(VCC = 5 V) VIN+ > VIN–.
14
Unit (resistance : Ω, current : A )
Equivalent circuit
VCC
300 Ω
11
300 Ω
13
15
14
UIN+
15
UIN–
16
FGIN+
17
FGIN–
U phase Hall element input.
Logic “H” is defined as the state where
UIN+ > UIN–.
100 µA
A13017
FG amplifier + input.
This is the + input to the Schmitt amplifier.
There is no bias applied internally.
FG amplifier – input.
The input resistance is 5 kW and a 150 kW feedback
resistor is built in. (The gain is 30×.)
150 kΩ
5 kΩ
300 Ω
17
VCC
6 µA
VCC
300 Ω
16
A13018
18
50 µA
50 µA
18
FGOUT
FG amplifier linear output.
300 Ω
19
BR
Short braking control input.
High: Short braking
Low: Normal motor drive
0 V to VCC
20
SL
Full-wave/half-wave control input.
High: Half-wave drive
Low: Full-wave drive
21
FGS
FG Schmitt amplifier output.
45 kΩ
19
20
VCC
A13019
VCC
21
A13020
A13021
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No. 6209-7/9