Datasheet

22
26
25
2
Quad Sel
RC-Osc
PWM In
27
28
1
E/A Out
E/A In(+)
E/A In (–)
OSC
S Q
R
S
QR
PWM CLOCK
24SSTART
3ISENSE
4ISENSE1
5ISENSE2
19VCC
23OV-Coast
6Dir
7Speed-In
2X
2.5V 250W
2.9V
Q1
10mA
3.1V
9V
DIRECTION
LATCH
0.25V
PWM CLOCK
8H1
9H2
L
QD
L
QD
L
QD
10H3
+5V
+5V
+5V
EDGE
DETECT
ONE
SHOT
21RC-Brake
2k
1V
DIR COAST CHOP QUAD
H2
H1
H3
BRAKE
DECODER
CROSS
CONDUCTION
PROTECTION
LATCHES
18 PUA
17 PUB
16 PUC
14 PDA
13 PDB
12 PDC
15 GND
20 Tach-Out
11 Pwr Vcc
+5V
VREF
5V
REFERENCE
PWM
CLOCK
1.75V
ABS VALUE
0.2V
UC1625
UC2625
UC3625
SLUS353C –NOVEMBER 2003–REVISED JUNE 2013 www.ti.com
BLOCK DIAGRAM
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