TMC262 DATASHEET (Rev. 2.07 / 2013-FEB-14)
47
+VM
100n
100n
Attention: High side capacitors would
discharge at 100% duty cycle within a
few seconds. Disable driver if open
load occurs in stand still.
optional capacitor
increases BBM time
by roughly 70ns at
min. SLPH setting
Provide sufficient filtering capacity
near bridge transistors (electrolyt
capacitors and ceramic capacitors)
16V
VHS
VM
5VOUT
TMC262
+VCC
VCC_IO
+10V
+VM up to 60V
10V gate supply
D
470nF
3.3V or 5V
100n
470pF
1K
47µF
D
S
D
S
High current NMOS
FET switches
N
N
N
N
G
G
2R2
8-20MHz
CLK
HA1
D
4.7µF
BC856
HS-Driver
motor coil A
560R
STEP
DIR
BMA1
LA1
D
D
step & dir
(optional)
D
S
D
S
LS-
Driver
G
G
2R2
22R
ISL6700 or
LM5107 or similar
TEST_SE
ENABLE
D
D
20mW for 14A peak
SENSE (resp. 7A peak)
R
SRA
CSN
SCK
SDI
D
D
D
D
SPI
SDO
Other half bridge(s) identical
stallGuard
output
SG_TST
D
DIE PAD
GND TEST_ANA
Figure 15.2 High-current power stage using external gate drivers with short to GND protection
When using high-current gate drivers, pay special attention to manufacturers’ recommendations
and application notes, especially concerning placement and layout of the circuit and additional
parts not shown in the example figures, such as capacitors for supply voltage decoupling,
protection diodes required in combination with some MOSFETs, etc.
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