UPD16835 Datasheet, PDF (8/32 Pages) NEC – MONOLITHIC QUAD H BRIDGE DRIVER CIRCUIT

REGULATOR
BATTERY
4.8 V-11 V
CPU
250 mV
EVR : 1010
fOSC : 64 kHz
4 MHz
OSCIN
OSCOUT
VD VREF
SCLK SDATA LATCH
100 kΩ × 4
EXP0 EXP1 EXP2 EXP3
3.3 V
RESET
VDD
VM1
VM2
VM3
VM4
COSC
33 pF
DGND
PGND
1/N
SELECTOR
OSC
×2
SERIAL-PARARELLE DECODER
PULSE GENERATER
EVR1 EVR2
CURRENT SETα
EVR1 EVR2
CURRENT SETβ
EXTOUT SELECTOR
+
- + _FILTER
VM
+
-+
VM
FILTER
+
- + _FILTER
VM
+
-+
VM
FILTER
H BRIDGE
α 1 ch
H BRIDGE
α 2 ch
H BRIDGE
β 1 ch
H BRIDGE
β 2 ch
EXTα
EXTβ
6.8 Ω × 2
1,000 pF × 2
FBA
A1 A2 FILA FBB
B1 B2 FILB FBC
C1 C2 FILC FBD
D1 D2 FILD
6.8 Ω
6.8 Ω
1000 pF
1000 pF
MOTOR 1
MOTOR 2