TMC2160 DATASHEET (Rev. 1.02 / 2018-NOV-19)
28
GENERAL CONFIGURATION REGISTERS (0X00…0X0F)
R/W
Addr
n
Register
Description / bit names
4..0 BBMTIME:
Break-Before make delay
0=shortest (100ns) … 16 (200ns) … 24=longest (375ns)
>24 not recommended, use BBMCLKS instead
Hint: Choose the lowest setting safely covering the
switching event in order to avoid bridge cross-
conduction. Add roughly 30% of reserve.
(Reset Default = 0)
11..8 BBMCLKS:
0..15: Digital BBM time in clock cycles (typ. 83ns).
The longer setting rules (BBMTIME vs. BBMCLKS).
(Reset Default: OTP 4 or 2)
17..16 OTSELECT:
Selection of over temperature level for bridge disable,
switch on after cool down to 120°C / OTPW level.
00: 150°C
01: 143°C
10: 136°C (not recommended when VSA > 24V)
11: 120°C (not recommended, no hysteresis)
Hint: Adapt overtemperature threshold as required to
protect the MOSFETs or other components on the PCB.
(Reset Default = %00)
19..18 DRVSTRENGTH:
Selection of gate driver current. Adapts the gate driver
current to the gate charge of the external MOSFETs.
00: weak
01: weak+TC (medium above OTPW level)
10: medium
11: strong
Hint: Choose the lowest setting giving slopes <100ns.
(Reset Default = %10)
21..20 FILT_ISENSE:
Filter time constant of sense amplifier to suppress
ringing and coupling from second coil operation
00: low – 100ns
01:
10:
– 200ns
– 300ns
11: high– 400ns
Hint: Increase setting if motor chopper noise occurs
due to cross-coupling of both coils.
(Reset Default = %00)
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