tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 40

• Manufacturer Part Number: tb62202afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

14. Overcurrent protector circuit
Test method: To monitor operating current of the overcurrent protector circuit when output A is short-circuited
Input the current setting data (HHHH signal) to the DATA pin. If short-circuited to the supply, measure the
lower output transistors. If short-circuited to ground, measure the upper output transistors (see how to measure
R
When measuring R
R
Make sure to leave open the output pins not being measured.
Note that if the temperature changes, the value may fluctuate. Try to avoid applying power to the IC by
one-shot measuring.
ON
ON
SGND
Setup data
DATA
CLK
STROBE
).
(A/B unit only. C/D unit conforms to A/B unit.)
cannot be measured. This value is the set current value for the overcurrent protector circuit.
H
H
H
L
L
L
5 V
0 V
5 V
0 V
5 V
0 V
to the power supply
(Example : The phase signal must be changed depending on the pin.)
At measuring, non-reset
RESET = 5 [V]
ON
0
, increase the current flow. There is a current value at which output is switched off and
1
SGND
2
3
27
31
30
29
28
8
4
(ISD) (To measure output A : )
RESET
CR AB
V
STROBE AB
CLK AB
DATA AB
P-GND
DD
5
6
40
7
8
V
R
R
Ccp C
Ccp B
Ccp A
ref AB
V
V
(F
RS A
RS B
V
M A
M B
9
SS
IN
A
B
A
B
)
36
34
32
35
13
12
10
9
2
5
3
1
7
11
SGND
Ccp 2
Ccp 1
Curve tracer
12
Curve tracer
13
14
: PGND
: SGND (V
TB62202AFG
15
SGND
2005-04-04
SS
)