tb62212ftag TOSHIBA Semiconductor CORPORATION, tb62212ftag Datasheet - Page 17

• Manufacturer Part Number: tb62212ftag
• Description: Pwm Chopper Type Dual-stepping Motor Driver
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Electrical Characteristics 2
AC Characteristics
V
V
V
TSD temperature
Internal V
V
Detection current of over-current
detection circuit
Note 1: Thermal shut down (TSD) circuit
Note 2: Over-current detection circuit
Logic input frequency
Minimum signal pulse width
Output transistor switching
characteristic
PWM ON-duty minimum width
Noise rejection dead band time
OSC_M reference signal oscillation
frequency
Chopping frequency range
Chopping frequency
ref
ref
ref
M
return voltage
input voltage
input current
attenuation ratio
CC
When the IC junction temperature reaches the specified value and become overheated under irregular
conditions causing the TSD circuit to be activated, the internal halt circuit is activated shutting down all the
outputs to off (Hi-Z).
When the temperature is set between 130°C (min) to 170°C (max), the TSD circuit operates.
When the TSD circuit is activated, output is halted until the POR is released.
When the current exceeding the specified value flows to the output under irregular conditions, the internal
halt circuit is activated switching all the outputs to off.
Until the POR is released, the over-current detection circuit remains activated.
For permanent fail-safe operation, be sure to add a fuse to the V
Characteristics
Characteristics
return voltage
(Ta = 25°C, V
tBLANK_CD (H)
tBLANK_CD (L)
tBLANK_AB (H)
tBLANK_AB (L)
(Unless otherwise specified, Ta = 25°C, V
t
t
t
t
t
t
pLH (OSC)
PWM (Min)
pHL (OSC)
ISD (Note 2)
pLH (INX)
V
w (tLogic)
pHL (INX)
f
Symbol
OSC_M
f
Symbol
ref
f
f
Logic
T
V
twp
twn
chop
chop
V
V
j
t
t
I
TSD
CCR
M
r
f
(Note 1)
ref
(gain)
MR
ref
= 24 V, 6.8 mH/5.7 Ω)
Circuit
Circuit
Test
Test
10
10
11
12
13
14
6
17
ENABLE = H,
Output on
ENABLE = L,
Output off, V
ENABLE = H,
Output on, V
ENABLE = H
ENABLE = H
f
Output load: 6.8 mH/5.7 Ω
Signal to OUT
Output load: 6.8 mH/5.7 Ω
OSC_M to OUT
Output load: 6.8 mH/5.7 Ω
When in DC motor mode
Output load: 6.8 mH/5.7 Ω
I
Analog tBLANK value
I
f
C
Output active (I
Output active (I
OSC = 800 kHz
chop
out
out
OSC_M
osc
= 0.6 A, V
= 0.6 A, f
= 220 pF
= 100 kHz set
cycle × 3
Test Condition
Test Condition
ref
ref
OSC_M
M
⎯
⎯
⎯
out
out
= 3.0 V
= 2.0 V
= 24 V
= 1.0 A)
= 0.6 A)
M
= 800 kHz
power supply.
1/4.8
GND
130
100
200
600
Min
Min
2.0
7.0
1.0
4.0
50
50
40
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
0
2
M
= 24 V)
TB62212FTAG
1/5.0
Typ.
Typ.
300
800
100
100
2.0
3.0
8.0
2.8
0.1
0.1
1.5
0.5
5.0
⎯
⎯
⎯
⎯
⎯
⎯
⎯
1
1
2010-10-05
1/5.2
1000
Max
Max
170
200
400
150
4.0
4.0
9.0
6.0
10
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Unit
Unit
kHz
kHz
kHz
kHz
μ A
°C
⎯
ns
μ s
μ s
ns
μ s
V
V
V
A