LB11690 Datasheet, PDF (7/19 Pages) Sanyo Semicon Device – Pre-Driver IC for Brushless Motor Drive in Electric Bicycles

LB11690, 11690H
Pin Functions *: Items in parentheses refer to the LB11690H.
Pin No. Pin Name
1 (2)
GND Ground
Pin description
Ground
V5
Equivalent circuit
2 (3)
RF
Connect the ground side of the external resistor Rf to this pin.
GND
2
V5
3 (4)
Output current detection
Connect the low-resistance resistor RF between this pin and
RF
ground.
The maximum output current is determined by the equation
I_OUT = 0.1/RF.
4 (5)
WL
Outputs
7 (9)
VL
(Low side n-channel power FET gate drive outputs)
10 (12)
UL
The duty is controlled.
V12
VB
5 (7)
8 (10)
11 (13)
W_OUT
V_OUT
U_OUT
Voltage detection
(High side n-channel power FET source voltage detection)
6 (8)
WH
9 (11)
VH
Outputs
(High side n-channel power FET gate drive outputs)
12 (14) UH
3
4 7 10
6 9 12
5 8 11
Continued on next page.
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