HA13568AT データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA13568AT

CD-ROM Combo Driver

Hitachi -> Renesas Electronics 

HA13568AT

Pin Description (cont)

Pin No.

36

37

Pin Name

PHASE

BRKSEL

38

VREGS

39

VREGF

40

CE

41

CT1

42

CT3

43

VSS

44

CT2

45

RT

46

SLDLIM

47

SLDIN

48

TRYF

49

TRYR

50

TRYLIM

51

NC

52

NC

53

NC

54

TRRIN

55

TRRREF

1, 28, 29, 56, TAB

Function

Outputs the B-EMF zero cross phase. Open corrector. (See the timing chart)

To select the brake mode. Lo: Short brake, Hi: Reverse full brake

(when forward torque input: BRKSEL = H)

Voltage regulator sense pin (VREGS ≈ 3.3 V output)

Voltage regulator force pin

Chip enable. Input Hi: active

Time constant for clock oscillator circuit. The clock oscillator frequency is

determined by the external capacitor and resistor Ct1 and Rt.

Time constant for PWM carrier oscillator. The carrier frequency is determined by

the external capacitor and resistor Ct3 and Rt.

Control block power supply. 5 V

Time constant for start-up oscillator. The start-up oscillator frequency is

determined by the external capacitor and resistor Ct2 and Rt.

Reference voltage (3.3 V). The IC’s internal reference current is determined by

this voltage and the external resistor Rt.

SLD output maximum duty setting

SLD control input pin

TRY driver forward input

TRY driver reverese input

TRY output voltage setting pin

No connection

TRR control input pin

TRR driver block reference voltage

GND

4

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