LB11823M Datasheet, PDF (9/19 Pages) Sanyo Semicon Device – Direct PWM Drive Brushless Motor Predriver for OA Products

Continued from preceding page.
Pin No. Symbol
Pin Description
LB11823M
22
Equivalent circuit
Power pin (V_CC3) for use during application with the supply
22
23
V_CC3
12REG
voltage of 12 V or more. 12 V is generated at the 12 REG
pin. To use the 12REG pin, connect this pin to V_CC1.
When not used, keep both V_CC3 and 12 REG open or
23
connect them to GND.
VCC2
PWM waveform comparator pin.
24
TOC ^{Normally used in the open condition. By inputting the}
voltage directly into this pin, the output duty can be
controlled without using the VCTL amp.
24
20kΩ
VCC2
Pin to set the PWM oscillation frequency.
25
PWM
Connect a capacitor between this pin and GND.
200Ω
25
2kΩ
VCC2
34kΩ
Control voltage input pin.
26
VCTL
For control with this pin, set the PWMIN pin to the L level.
2.26V
40kΩ
26
Pin to set the operation time of motor lock protection circuit
and to set the initial reset pulse.
27
CSD ^{Connect a capacitor between this pin and GND. When the}
protection circuit is not to be used, connect a capacitor and
resistor (150kΩ, 4700pF) in parallel between this pin and
GND.
VREG
300Ω
27
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No. 7106-9/19