HA13568AT

Pin Description

Pin No.

Pin Name

Function

FCSREF

FCS driver block reference voltage

FCSIN

FCS control input pin

FCSRS

FCS sense pin

TRRRS

TRR sense pin

VFCS

FCS driver and TRR driver power supply

FCSP

FCS driver P output

FCGND

FCS driver and TRR driver GND

FCSN

FCS driver N output

TRRP

TRR driver P output

TRRN

TRR driver N output

TRYP

TRY driver P output

TRYN

TRY driver N output

VSLD

SLD driver and TRY driver power supply

SLGND

SLD driver and TRY driver GND

SLDN

SLD driver N output

SLDP

SLD driver P output

VBST

Booster output pin. This circuit generates a voltage about 1.5 V above that of the
VSPN pin.

Booster pumping capacitor connection

RNF

Spindle driver current detection

U phase output

V phase output

W phase output

VSPN

Spindle and booster power supply

WFIL

W phase low pass filter. Connect a filter C to this pin during GND.

VFIL

V phase low pass filter. Connect a filter C to this pin during GND.

UFIL

U phase low pass filter. Connect a filter C to this pin during GND.

REFIN

Reference voltage of spindle and slide

VCTL

Spindle control input. Generates forward torque when a DC voltage higher than
REFIN is applied, and brake when a DC voltage lower than REF is applied.

AGC

For AGC. Holds the level used for IC internal processing fixed even if the B-EMF
level fluctuates due to the rotation speed.

Spindle center tap

Spindle driver phase compensation

HA13568AT

Pin Description (cont)

Pin No.

Pin Name

Function

PHASE

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

BRKSEL

To select the brake mode. Lo: Short brake, Hi: Reverse full brake
(when forward torque input: BRKSEL = H)

VREGS

Voltage regulator sense pin (VREGS

3.3 V output)

VREGF

Voltage regulator force pin

Chip enable. Input Hi: active

CT1

Time constant for clock oscillator circuit. The clock oscillator frequency is
determined by the external capacitor and resistor Ct1 and Rt.

CT3

Time constant for PWM carrier oscillator. The carrier frequency is determined by
the external capacitor and resistor Ct3 and Rt.

VSS

Control block power supply. 5 V

CT2

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.

SLDLIM

SLD output maximum duty setting

SLDIN

SLD control input pin

TRYF

TRY driver forward input

TRYR

TRY driver reverese input

TRYLIM

TRY output voltage setting pin

No connection

TRRIN

TRR control input pin

TRRREF

TRR driver block reference voltage

1, 28, 29, 56, TAB

GND

HA13568AT

Block Diagram

Drive

mode

UFIL

Vspn

Tmask

VFIL

WFIL

Vbst

VSS

VSPN

AGC

Vref

Vbst

PHASE

VCTL

REFIN

BRKSEL

CT1

CT2

Ct2

Vreg

OTSD

FCSREF

CLK

Ct1

CLK

OSC

TRRREF

FCSIN

Vbst

SPN

RNF

Rnf

VBST

FCSP

FCSRS

FCSN

VFCS

FCGND

FCS

0.5A
BTL

Vfcs

TRRIN

TRRP

TRRRS

TRRN

TRR

0.5A
BTL

Vfcs

Vbst

SLDIN

SLDLIM

SLDP

SLDN

VSLD

SLGND

SLD

TRY

VREGS

VREGF

TRYP

TRYN

TRYR

C102

TRYF

Ct3

CT3

TAB

TRYLIM

51 ,

53 : NC pin

B-EMF

detection

Commutation

Mask

time

Brake

Start-up

circuit

1.5A
SPN
output

Current

control

Bias

1.5AH
bridge

0.5AH
bridge

SLD

control

HA13568AT

External Components

Parts No.

Reccomended
Value

Reccomended
Range

Purpose

Note

R101

47 k

Filter for SPN driver control input

R102

47 k

Filter for SLD driver control input

R103

6.8

To stop FCS block oscillation

R104

6.8

To stop TRR block oscillation

R105

500

100

for Q1 bias

R106

20 k

for TRY driver output voltage setting

R107

27 k

R108

6.8

To stop FCS block oscillation

R109

6.8

To stop TRR block oscillation

R110 to
R113

20 k

for BTL gain setting

Rnf

0.25

SPN driver current detection resistor

Rt1

1.8 k

Rt1 + Rt2 =
10 k

Reference current setting and SLD driver
maximum duty setting

2, 5

Rt2

8.2 k

RSFCS

0.33

for FCS driver current sense

RSTRR

0.33

for TRR driver current sense

Rr1

Voltage regulator division resistor

Rr2

C101

0.1

for Power supply by passing

C102

0.047

for B-EMF Amplitude AGC

C103

0.01

for B-EMF filter

C104

C105

C106

0.22

for Booster pumping

C107

0.47

for Booster output smoothing

C108

0.1

for SPN driver phase compensation

C109

0.01

Filter for SPN control input

C110

3300 pF

Filter for SLD control input

C111

0.01

To stop FCS block oscillation

C112

0.01

To stop TRR block oscillation

C113

0.01

To stop FCS block oscillation

C114

0.01

To stop TRR block oscillation

C115

2.2

for Voltage regulator smoothing

HA13568AT

External Components (cont)

Parts No.

Reccomended
Value

Reccomended
Range

Purpose

Note

Ct1

150 pF

120 pF

Time constant for CLK oscillation. Use a
capacitor with good temperature characteristics.

Ct2

0.033

Time constant for start-up oscillation. Use a
capacitor with good temperature characteristics.

Ct3

470 pF

390 pF

PWM carrier oscillation time constant

Transistor for voltage regulator

Note:

1. The output current maximum value Iospnmax of SPN driver is controlled according to the

following equation. However, Vspncl is the current limiter reference voltage. (See the electrical
characteristics)

Iospnmax =

Vspncl

Rnf

2. The maximum duty Dmax of SLD driver output is controlled according to the following equation.

Vrt

Vhct3

Vlct3

Rt2

Vlct3

Vrt

Dmax =

100 (%)

However,

Rt2

Vlct3

Vrt

Rt = Rt1 + Rt2,

Where, Vrt

: RT pin voltage (See the electrical characteristics)

Vlct3 : CT3 pin low voltage (

1.3 V)

Vhct3 : CT3 pin high voltage (

3.3 V)

Since Vrt

Vhct3, Dmax is not limited at 100% when Rt1 = 0

3. The CLK oscillation frequency is determined by the following equation.

Vrt

8 Ct1 Rt

Vct1

fclk =

Vrt

8 Ct1 Rt

Vct1

fclk =

Where, Vrt

: RT pin voltage (See the electrical characteristics)

Vct1 : CT1 pin voltage amplitude (

1 V)

4. The Ct2 for start-up oscillation is determined by the following equation.

Tc2 =

P Kt Ispnmax

1
6

Ct2 =

Tc2 Vrt

8 Rt (Vhct2

Vlct2)

Where, J

: Spindle motor inertia (kg · cm · S

)

: Number of spindle motor poles (Total number of S poles and N poles)

: Spindle motor torque constant (kg · cm / A)

Vhct2 : CT2 pin high voltage (

3.3 V)

Vlct2 : CT2 pin low voltage (

1.3 V)

HA13568AT

5. The PWM oscillation frequency fpwm is determined by the following equation.

fpwm =

Vrt

8 Ct3 Rt (Vhct3

Vlct3)

Where, Vhct3 : CT3 pin high voltage (

3.3 V)

Vlct3 : CT3 pin low voltage (

1.3 V)

6. The C103 to C105 for B-EMF filter are determined by the following equation.

Rflt

C103

Where, Rfill

: B-EMF detection output resistor (See the electrical characteristics)

: Maximum rotation speed (rpm)

7. The FCS and TRR is determined by the following equation.

Gv =

Voltage drive:

Rin + R2

Gm =

Current drive:

((Rin + R2)

Rs)

Where, R1

: Resistor of IC inside (

30k

)

: Resistor of IC inside (

)

Rin

: Resistor value inserted in the input (

)

(R110 to R113)

: Current sense resistor (

)

8. The output voltage Vout of voltage regulator is determined by the following equation.

Rr1
Rr2

Vout = 3.3 1 +

HA13568AT

Absolute Maximum Ratings (Ta = 25

Item

Symbol

Rating

Unit

Note

Supplu voltage

Vss

SPN supply voltage

Vspn

FCS & TRR supply voltage

Vfcs

SLD & TRY supply voltage

Vsld

Input voltage

Vin

0 to Vss

Vintrylim

Vss to Vsld

SPN output current

Iospn

1.5

FCS & TRR & TRY output current

Iofcs

0.5

SLD output current

Iosld

1.5

Power dissipation

Junction temperature

160

Storage temperature range

Tstg

55 to +125

Note:

1. Operating voltage range is shown below.

Vss = 4.25 to 5.75 V

Vspn = 4.25 to 13.8 V

Vfcs = 4.25 to 13.8 V (However, the output high voltage is clamped at 7 V.)

Vsld = 4.25 to 13.8 V

Tjopr = 0 to +135

2. Applied to BRKSEL, VCTL, REFIN, CE, FCSIN, FCSREF, TRRIN, TRRREF, SLDIN, SLDLIM,

TRYF and TRYR.

3. ASO (Area of Safety Operation) of each output transistor is shown below (TBD).

The voltage between Corrector and Emitter Vce (V)

0.5

2.0

1.5

0.2

1.0

0.1

Corrector Current Ic (A)

ASO of SPN driver

ASO of SLD driver

0.5

2.0

1.5

0.2

1.0

0.1

t = 10ms

t = 1ms

t = 0.1ms

t = 10ms

t = 1ms

t = 0.1ms

4. Thermal resistance is shown below.

j-tab

C / W (back side tab soldering area is 70% or more)

j-a

C / W (mounted on 4 layer multi glass-epoxy board, back side tab soldering area is

70% or more)

HA13568AT

Electrical Characteristics
(Ta = 25

C, Vss = 5 V, Vspn = 12 V, Vfcs = 5 V, Vsld = 12 V)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

Quiescent current

Iss0

0.7

0.9

CE = L

VSS

Ispn0

0.2

VSPN

Ifcs0

0.01

VFCS

Isld0

0.01

VSLD

Iss1

CE = H, VCTL =

VSS

Ispn1

FCSIN = TRRIN =

VSPN

Ifcs1

SLDIN = REFIN,

VFCS

Isld1

1.0

TRYF = TRYR = L
All load open

VSLD

Iss2

CE = H, VCTL =

VSS

Ispn2

FCSIN = TRRIN =

VSPN

Ifcs2

SLDIN = 5 V,

VFCS

Isld2

1.0

TRYF, TRYR = H,
L, All load open

VSLD

Logic

Input current

Iince

100

Vin = 0 to 5 V

BRKSEL,

input

Iin

CE, TRYF,

Low level voltage

Vil

0.8

TRYR

High level voltage

Vih

2.0

Logic

Low level voltage

Vol

0.4

Io = 1 mA

PHASE

output

Leak current

Icer1

Vce = 15 V

SPN
driver

Output saturation
voltage

Vsatspn

1.25

1.75

Iospn = 1.0 A

U, V, W

Leak current

Icer2

1.3

2.2

Vce = 15 V

Current limiter
voltage

Vspncl

238

265

292

Rnf = 0.25

RNF

FCS

Input resistance

Rinfcs

9.6

14.4

FCSIN

driver

Rinfcsref

9.6

14.4

Input voltage range

Vinfcs

HA13568AT

Electrical Characteristics
(Ta = 25

C, Vss = 5 V, Vspn = 12 V, Vfcs = 5 V, Vsld = 12 V) (cont)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

FCS
driver

Output quiescent
voltage

Vqfcs

2.375

2.5

2.625

FCSIN=FCSREF=
2.5 V, VFCS=5 V

FCSP,
FCSN

Output offset
voltage

Vosfcs

Output saturation
voltage

Vsatfcs

1.0

1.4

Io = 0.33 A

Voltage gain

Gvfcs

11.6

12.6

13.6

Gain band width

Bfcs

100

kHz

Gv = 3 dB

TRR

Input resistance

Rintrr

9.6

14.4

TRRIN

driver

Rintrrref

9.6

14.4

Input voltage range

Vintrr

Output quiescent
voltage

Vqtrr

2.375

2.5

2.625

FCSIN=TRRREF=
2.5 V, VFCS=5 V

TRRP,
TRRN

Output offset
voltage

Vostrr

FCSIN = REF

Output saturation
voltage

Vsattrr

1.0

1.4

Io = 0.33 A

Voltage gain

Gvtrr

11.6

12.6

13.6

Gain band width

Btrr

100

kHz

Gv = 3 dB

SLD
driver

Output saturation
voltage

Vsatsld

1.5

2.0

Iosld = 0.75 A

SLDP,
SLDN

Leak current

Icer3

100

Vce = 15 V

Penetration current

Iovlap

100

VSLD

Transient response

tplh1

SLDP,

time

tphl1

SLDN

TRY
driver

Output saturation
voltage

Vsattry

1.0

1.4

Iotry = 0.33 A

TRYP,
TRYN

Leak current

Icer3

100

Vce = 15 V

Penetration current

Iovlap

100

VSLD

Transient response

tplh1

TRYP,

time

tphl1

TRYN

Input current

Iintrylim

Vtrylim=7 to VSLD

Output voltage

Vlimtry

0.1

0.7

1.0

= 16

Vtrylim = 7 V

HA13568AT

Electrical Characteristics
(Ta = 25

C, Vss = 5 V, Vspn = 12 V, Vfcs = 5 V, Vsld = 12 V) (cont)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

SPN

Input current

Iinspn

5.0

Vctl = 0 to Vss1V

VCTL,

current

REF voltage range

Vref

1.6

3.0

REFIN

control

Dead zone voltage

Vdzspn

120

Vref reference

Current control
gain

Gctl

1.5

RNF

Drive

Change threshold

Vctl

0.5

0.1

Vref reference

VCTL

mode

voltage

PHASE

CT2

50%

SOFT SW mode

U, V, W

SOFT SW

CT2

20%

SW mode

B-EMF

detection

Output resistance

Rflt

20%

UFIL, VFIL,
WFIL

Threshold voltage
of PHASE
occurrence

Viemf

50%

mVpp

VSPN

Vss + 3V

U, V, W

50%

mVpp

VSPN

Vss + 3V

CLK

RT voltage

Vrt

3.135

3.30

3.465

OSC

CLK oscillation
frequency

fclk

210

240

270

kHz

Rt = 10 k

Ct1 = 82 pF

CT1

Start-up
circuit

Start-up oscillation
frequency

fct2

437

485

534

Rt = 10 k

Ct2 = 0.033

CT2

SLD

Input current

insld

5.0

Vsld = 0 to Vss1V

SLDIN

control

Input voltage range

Vinsld

4.0

Limiter input
current

Isldlim

5.0

SLDLIM

PWM oscillation
frequency

fpwm

42.35

kHz

Rt = 10 k

Ct3 = 470 pF

Control gain

D/V

100

%/V

Offset voltage

Vossld

SLDIN = REFIN

Voltage
regulator

Output sink current

Isinkreg

8.5

12.2

VREGS = 4 V,
VREGF = 4 V

Output voltage

Voutreg

3.135

3.30

3.465

OTSD

Operating
temperature

Tsd

135

160

Hysteresis

Thys

HA13568AT

Note:

1. The output saturation voltage is the sum of the upper and lower saturation voltages.

2. See figure 1. Where,

Vspncl

Vref

Reverse

torque

Forward
torque

Vctl (V)

Vrnf (V)

Vdzspn

Gctl = 20 log

Vrnf

Vctl

Vrnf

Vctl

Figure 1

Reverse brake Short brake

3. Where,

Vqfcs =

Vfcsp + Vfcsn

Vqtrr =

Vtrrp + Vtrrn

4. See figure 2. Where,

Vref

Vfcsin (Vtrrin)

Vfcsp (Vtrrp) &

Vfcsn (Vtrrn)

Gvfcs = 20 log

Vfcsp

Vfcsin

Vfcsn

Vfcsin

Gvtrr = 20 log

Vtrrp

Vtrrin

Vtrrn

Vtrrin

Vfcsn (Vtrrn)

Vfcsp (Vtrrp)

Vfcsin

(

Vtrrin)

Vfcsp

(

Vtrrp)

Figure 2

5. The circuit operates in soft switching drive mode only when the control input (Vctl) is lower than

CT2

and f

PHASE

is higher than the threshold voltage. See figure 3.

0.5V

CT2

CTL

REFIN

SW mode

PHASE

(Hz)

SOFT SW mode

SW mode

Figure 3

6. PHASE is output only when B-EMF exceeds the threshold voltage.

HA13568AT

Reference Data

Output Current Iospn (A)

1.0

0.5

1.5

Output Saturation Voltage Vsatspn (V)

SPN Driver Output Saturation Voltage vs.

Output Current

FCS Driver Output Saturation Voltage vs.

Output Current

Output Current Iofcs (A)

Output Saturation Voltage Vsatfcs (V)

0.4

0.2

0.6

Output Current Iosld (A)

1.0

0.5

1.5

Output Saturation Voltage Vsatsld (V)

SLD Driver Output Saturation Voltage vs.

Output Current

TRR Driver Output Saturation Voltage vs.

Output Current

Output Current Iotrr (A)

Output Saturation Voltage Vsattrr (V)

0.4

0.2

0.6

Output Current Iotry (A)

0.4

0.2

0.6

Output Saturation Voltage Vsattry (V)

TRY Driver Output Saturation Voltage vs.

Output Current

RT Voltage vs. Junction Temperature

Junction Temperature Tj (

RT Voltage Vrt (V)

100

135

3.6

3.2

3.4

3.0

Upper arm, Lower arm

Upper arm + Lower arm

Upper arm, Lower arm

Upper arm + Lower arm

Upper arm, Lower arm

Upper arm + Lower arm

Upper arm, Lower arm

Upper arm + Lower arm

HA13568AT

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent,

copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party's rights, including
intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have

received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,

contact Hitachi's sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly

for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without

written approval from Hitachi.

7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor

products.

Hitachi, Ltd.

Semiconductor & IC Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109

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For further information write to:

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