lv8762t Sanyo Semiconductor Corporation, lv8762t Datasheet - Page 12

• Manufacturer Part Number: lv8762t
• Description: Forward/reverse H-bridge Driver
• Manufacturer: Sanyo Semiconductor Corporation

Application Circuit Example
Current limit value
Setting the current limit regeneration time and short-circuit detection time
Setting at current limit mask time
Setting at current limit brake time
M
When VREF = 1.5V,
T SCP ≈ C SCP × Vt SCP ÷ I SCP
T CMK ≈ C CMK × Vt CMK ÷ I CMK
T CHOP ≈ C CHOP × Vt CHOP ÷ I CHOP
= 50pF × 1V ÷ 5μA = 10μs
* The external part constant is a reference value.
Ilimit = Vref ÷ 5 ÷ RNF
= 50pF × 1V ÷ 5μA = 10μs
= 0.1μF × 1.5V ÷ 25μA = 6ms
Control input
Control input
= 1.5V ÷ 5 ÷ 1Ω = 0.3A
- +
10
12
11
1
2
3
4
5
6
7
8
9
PGND
OUTB
OUTB
RNF
RNF
VM
VM
OUTA
OUTA
NC
ST
EMM
LV8762T
CHOP
REG5
VREF
EMO
GND
CMK
CP1
CP2
SCP
IN2
IN1
VG
24
23
22
21
20
19
18
17
16
15
14
13
Output current
setting input
Overcurrent detection
monitor pin
Control input
No.A1926-12/13
0.1 F
50pF
50pF