Document
HA13571FR
Combo (Spindle & VCM) Driver for HDD
ADE-207-269 (Z) 1st Edition February 1999 Description
The HA13571FR is combination of Spindle and VCM Driver designed for HDD and have following functions and features.
Functions
• • • • • • • • • 2.2 A/phase spindle motor driver 1.5 A VCM driver Soft switching control circuit B-EMF detection circuit Selectable PWM or linear drive (spindle motor driver) Power down brake & retract PWM DAC & filter (VCM driver) 5 V, 12 V power supply monitor Watch dog timer
Features
• Low thermal resistance package (θj-a ≤ 25°C/W) • Full programable commutation structure • Low output saturation voltage Spindle motor driver VCM driver • Built-in PWM DAC with filter • Low noise drive by soft switching
HA13571FR
Pin Arrangement
VISENH NC VCMP VCMP VCMP VCCV12 SHPWR POR12VADJ VCMREF WDTIN GND NC GND VISENL POR5VADJ CPOR NC PORN VISENS VCMINP 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 RETADJ NC1 VCMN NC NC BSTFLT BSTCP1 BSTCP2 OSCTC GND GND SDRVW NC SISENH SISINK SISINK NC SDRVN SCOMP SDRVU 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SDRVV TEMP SLOPEC NC SPWMTC NC NC VCCS12 NC SISENL GND NC NC GND SLOPER VCC5 SPWMFLT SIPWM SMODE SCNTL3 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VFLTOUT VFLTINP VFLTINP VREFOUT VPCNTL VIPWMH VIPWML NC NC NC NC GND NC VCCA12 SENU SENV SENWIS SCNTL1 SCNTL2 GND (CTLAMP) (Top view) Notes: 1. 2. 3. 4. All same name pins must be connected together. "NC" and "NC1" denotes no connection pins. ALL "NC" pins must be connected to GND or opened. "NC1" pin must be connected to VCMN or opened. 2
HA13571FR
Block Diagram
5V 0.1µF 12V 34kΩ 470pF Rx 0.47µF
VCC5 16 SLOPER 15 3 SLOPEC SENU 26 SENV 25 SENWIS 24 SCNTL1 23 SCNTL2 22 SCNTL3 20
0.5VCC5
SPWMTC 5
VCCA12 27
VCCS12 8 SDRVN 78
SOFT SWITCH CONTROL
SLEEP SOFT − + − + SLEEP U VBST V W TAB
SPN DRIVER
U V
SDRVU 80 SDRVV 1 SDRVW 72 75,76 74 10 79 SISINK
MPX
− +
LOGIC DECODER
DISABLE
W
ONE SHOT
0.75VCC5 INDUCTANCE MODE PWM MODE LINEAR Icomp
SISENH
Rnf
SMODE 19
SMODE COMP
0.25VCC5
SIPWM 18 SPWMFLT 17
PWM DECODER FILTER
0.5VCC5
− +
ICOMP
− + 0.9V
SOFT
ISENSE AMP + − ISENSE − + CONTROL AMP TSD
SISENL SCOMP
5V
THERMAL SHUT DOWN
2 TEMP SHPWR
SLEEP 0.5VCC5
SLEEP
0.75VCC5
SLEEP POR
WDTIN 51 VPCNTL 36 VREFOUT 37 VREFOUT 4.0V
WATCH DOG TIMER
54
VTRI- DISABLE LEVEL
0.25VCC5
RETRACT DRIVER
61
RETADJ
SLEEP VREF 1.4V
VBST VCM ENABLE
55
VCCV12
VIPWML 34 VIPWMH 35
PWM DECODER
FILTER
VCCV12/2
VCM DRIVER
VCMN 63 VCMP Rs 56,57,58 47
Rf
VISENL VISENH VCMREF
SBD1
Cf
SLEEP VREF 1.4V
60 52
VBST
5V
OSCTC 69
BOOSTER
POWER MONITOR
5/16 VCC5
POR DETECTOR
POR
43 PORN
5/32 VCCV12
67 68 BST BST CP2 CP2
66 38,39 40 41 42 46 BST VFLT VFLT VCM VISENS POR FLT INP OUT INP 5V ADJ
53 POR 12V ADJ
45 CPOR
11,14,21,29, 48,50,70,71
C133
3
HA13571FR
Truth Table
Table 1
SCNTL1 H H H L L L L H
Input to Output Drivers
SCNTL2 H L L L H H L H SCNTL3 L L H H H L L H SDRVU L Z H H Z L Z L SDRVV Z L L Z H H Z L SDRVW H H Z L L Z Z L
Note: Z = High impedance
Table 2
SMODE H H M L Note:
Spindle Driver Mode Control
SIPWM Duty ≥ 50% Duty ≤ 40% X X Spindle Driver Mode Linear Mode (High slew rate) * 2 Linear Mode (Low slew rate) * 2 Inductive Sense Mode B-EMF Sense in PWM Drive Mode
1. X = Don’t care 2. Slew rate mode is commutated at synchronized with the up edge of SLOPEC.
Table 3
WDTIN H or L M M M
VCM Control
VPCNTL X H M L VCM Mode Park Enable Disable Park
Table 4
TEMP H L
Temp Output
Status Warning or TSD Normal
4
HA13571FR
Table 5 Output Status
PORN Driver SPN Output VCM Output L Brake for Retract Retract (Power off) H Enable Enable TSD Inactive X X Active Z Z SLEEP * 3 L X X H Z Z TEMP L X X H
Notes: 1. X = Don’t care 2. Z = High impedance 3. SLEEP SCNTL1 = SCNTL2 = SCNTL3 = Low WDTIN = VPCNTL = Middle
5
HA13571FR
Table 6
SCNTL Input States SCNTL1 See Table 1 L H SCNTL Input States SCNTL1 X X X X SCNTL Input States SCNTL1 L SCNTL2 L SCNTL3 L Middle Z SCNTL2 X X X X SCNTL3 X X X X L or H Middle Middle Middle WDTIN Input State X H Z L VPCNTL Input State SCNTL2 See Table 1 L H SCNTL3 See Table 1 L H X X X WDTIN Input State X X X VPCNTL Input State
SCNTL, WDTIN and VPCNTL Mode
WDTIN Input State VPCNTL Input State Modes of Operation at Power Good (PORN = H) Spindle Driver Enable Disable Brake Modes of Operation at Power Good (PORN = H) VCM Driver Park Enable Disable Park Modes of Operation at Power Good (PORN = H) Spindle & VCM Driver Sleep Mode *
Note: Sleep signal is generated by SCNTL and VPCNTL. TEMP output is depend on internal TSD and internal TEMP. (see figure 1)
Tsoff TSD (Internal) Thys Twar TSD TEMP
TEMP (Internal)
TEMP
TEMP (Output)
TEMP output logic (1)
TEMP output logic (2)
Figure 1 TEMP Output Logic
6
HA13571FR
Table 7
Function Spindle enable Spindle disable PORN low Park *
1 2
Function Powered on Vs Mode Operation
UPPER BOOSTER ON ON OFF ON OFF UPPER DRIVERS .