LB1975(2003) Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Lista de partido
LB1975 Datasheet PDF : 10 Pages
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LB1975
Continued from preceding page.
Pin No. Pin name
15
GND1
12
GND2
Pin voltage
Pin function
Ground for blocks other than the
output block
17
FG1
Speed pulse output pin 1 with built-in
pull-up resistor
0.0 V to VCC
Speed pulse output pin 2 with built-in
16
FG2
pull-up resistor
Equivalent circuit
VCC
10 kΩ
16 17
22
IN1+
23
IN1–
20
21
18
IN2+
IN2–
IN3+
1.5 V to
VCC – 1.5 V
Hall input pin
IN+ > IN– : High input
IN+ < IN– : Low input
19
IN3–
VCC
18
300 Ω
20
22
A11957
19
300 Ω
21
23
VCC
This pin sets the PWM oscillation
26
OSC
1.0 V to VCC frequency. Connect a capacitor
between this pin and ground.
A11958
2 V 94 µA
200 Ω
26
2.1 kΩ
Output duty cycle control pin
• VCTL ≤ VCTL1
Duty cycle 0%
27
VCTL
0.0 V to 6.7 V • VCTL1 < VCTL < VCTL2
Duty cycle is controlled by VCTL
• VCTL ≥ VCTL2
Duty cycle 100%
31 kΩ
A11959
VCC
2.35 V
40 kΩ
27
A11960
Continued on next page.
No. 6087-7/12
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