MTD1120F_10 Datasheet, PDF (2/2 Pages) Shindengen Electric Mfg.Co.Ltd – Constant Current Control Function (Fixed OFF Time)

عၮᧄᔕ↪࿁ऍዋ Typical Application
OUT A
OUT A
OUT B
OUT B
Cf ^Rf
Rf _Cf
عࡇࡦଙ¾࿑ዋPin Assignment
Top View MTD1120F
OUT A
Rs A
OUT A
NC
NC
NC
NC
GND
COM
NC
NC
NC
OUT B
Rs B
OUT B
Package
HSOP28
PG A
IN A
IN A
Vs A
Vref A
CR A
Vcc
GND
LG
CR B
Vref B
Vs B
IN B
IN B
PG B
ع⌀ℂ୯؛ዋ Truth Table
IN A or B
L
IN A or B
L
OUT A or B
OFF
L
H
OFF
H
L
ON
H
H
OFF
OUT A or B
OFF
ON
OFF
OFF
عផᅑ࿁ऍቯᢙዋRecommended External Components Value
ܕภޓSymbol
Rs
ផᅑ୯ޓRecommendation
0.68
න૏ޓUnit
Ç¡
Rf
1
kǡ
Cf
3300
pF
Rt
8.2
kǡ
Ct
3300
pF
Vz
Vmm ˜ 1.2 ጚ 1.5
V
R1+R2
҇ 10
kǡ
ع಴ജชᵹወࡢࡦ࡚ࠪ࠶࠻ࠝࡈᤨശߩܣቯዋ Setting of Output Current and One Shot Off Time
٤ ಴ജชᵹܣቯᑼዋ Output Current Setting
lchop  ^V_^r_^e_^f _{ᎢᎈᎤ}
Rs
٤ ࡢࡦ࡚ࠪ࠶࠻ࠝࡈᤨശܣቯᑼዋ One Shot Off Time Setting
toff = 0.69 ^× Ct ^× Rt ᎢᎺᎤ
Constant current waveform ፯Motor current፰
Ichop
عផᅑേ૞᧦ઙዋ Recommended Operating Conditions
ິ⋡ Parameter
ធวૡ᷷ᐲ
Junction Temperature
ࡠࠫ࠶ࠢชḮช࿶
Logic Supply Voltage
ࡕ࡯࠲ชḮช࿶
Load Supply Voltage
࠴࡚࠶ࡇࡦࠣ๟ᵄᢙ
Chopping Frequency
․ߦᜰቯߥ߈႐วߪTa=25͠ዋTa=25͠ unless otherwise specified
ܕภ Symbol
ផᅑ୯ Recommendation
න૏ Unit
Tj
-25 ጚ 120
Í 
VCC
4.75 ጚ 5.25
V
Vmm
ጚ 27.5
V
fchop
ጚ 27
kHz
www.shindengen.co.jp/product/semi/
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