Setting evaluation board 1
Setting motor current
Waveform of motor current
Charge
Fast
Slow
Current value of setting motor
Setting motor current
VREF
R_VREF2
R_VREF1
RS1
RS2
R_VREF2
R_VREF1
Mounting
area
On this evaluation board, external components are
mounted based on ACDS mode. When uses external
sense RS resistor mode, please remove solder from short
round of RS1 and RS2. And please mount external current
sense resistor on R_RSA and R_RSB.
When uses VCC voltage for generating VREF, please add
dividing voltage resistors to mounting area of R_VREF2
and R_VREF1.
①
ACDS (RS resistor less) mode: RS_SEL=Low
GAIN_SEL=Low:
Iout(max) = 1.56 x VREF(V)
GAIN_SEL=High:
Iout(max) = 0.78 x VREF(V)
②
External sense RS resistor mode: RS_SEL=High
Iout(max) = VREF(gain) x
GAIN_SEL=Low
：
VREF(gain) is 1/5.0 (typ.).
GAIN_SEL=High
：
VREF(gain) is 1/10.0 (typ.).
Vref(V)
R
RS
(Ω)
