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AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Features * Independent 6-Channel H-Bridge * Built-in 4 constant voltage drivers, two of those drivers with brake function. * Built-in 2 constant current drivers. * Low on-resistance <1.2 (typ.) * Built-in charge pump(to drive the upside NMOS of H-bridge drivers) * Low Voltage operation * Built-in Thermal Shutdown Function * LQFP-48 Package Block Diagram
PS VCC PGND3 PVCC CP1 CP2 CP3 CP4 VG
General Description The AT5556 is a 6-channel H-bridge drivers IC for DSC motor application. It built in with 4 constant voltage drive and 2 constant current blocks to drive auto-focus, zoom, shutter, auto-exposure motors. Applications *DSC motor Driver
Thermal Shutdown and UVLO
Oscillator
Charge Pump
Charge Pum p
VM1 OUT1A OUT1B OUT2A OUT2B PGND1
IN1A IN1B IN2A IN2B
H-Bridge
H -Bridge
Level Shift
IN3A IN3B IN4A IN4B
Logic Block
H-Bridge H-Bridge
IN5A IN5B IN6A IN6B GND
Pre Driver
VM2 OUT3A OUT3B OUT4A OUT4B PGND2
H-Bridge
H -Bridge
VM3 OUT5A OUT5B OUT6A OUT6B
Vref
Vref VC1 VC2 VC3 VC4 RFG1 RFG2
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 1 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Pin Configuration
OUT6A OUT6B 47 OUT5B OUT5A PGND RFG1
RFG2 48 IN6B IN6A IN5B IN5A IN4B IN4A IN3B IN3A IN2B 1 2 3 4 5 6 7 8 9
VM3 45
CP4
CP3
NC
VG
46
44
43
42
41
40
39
38
37 36 CP2 35 CP1 34 PVCC 33 VCC 32 NC
AT5556
31 PS 30 GND 29 VREF 28 VC4 27 VC3 26 VC2 25 VC1
IN2A 10 IN1B 11 IN1A 12 13 PGND1 14 OUT1A 15 OUT1B 16 VM1 17 OUT2A 18 OUT2B 19 OUT3A 20 OUT3B 21 VM2 22 OUT4A 23 OUT4B 24 PGND2
Ordering Information Part number Package AT5556F LQFP48 AT5556F_PBF LQFP48, PB-Free AT5556F_GRE LQFP48, Green AT5556N_GRE QFN48,Green Marking AT5556F AT5556F, date code with one bottom line AT5556F, date code with two bottom line AT5556N
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 2 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Pin Description Pin NO. Symbol
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 IN6B IN6A IN5B IN5A IN4B IN4A IN3B IN3A IN2B IN2A IN1B IN1A PGND1 OUT1A OUT1B VM1 OUT2A OUT2B OUT3A OUT3B VM2 OUT4A OUT4B PGND2 VC1 VC2 VC3 VC4 VREF GND PS NC VCC PVCC CP1 CP2 CP3 CP4 VG PGND NC RFG1 OUT5A OUT5B VM3 OUT6A OUT6B RFG2
I/O
I I I I I I I I I I I I P O O P O O O O P O O P I I I I I P I P P I I I I P P O O P O O
Description
It combines IN6A to decide the state of the constant current driver6 It combines IN6B to decide the state of the constant current driver6 It combines IN5A to decide the state of the constant current driver5 It combines IN5B to decide the state of the constant current driver5 It combines IN4A to decide the state of the constant voltage driver4 It combines IN4B to decide the state of the constant voltage driver4 It combines IN3A to decide the state of the constant voltage driver3 It combines IN3B to decide the state of the constant voltage driver3 It combines IN2A to decide the state of the constant voltage driver2 It combines IN2B to decide the state of the constant voltage driver2 It combines IN1A to decide the state of the constant voltage driver1 It combines IN1B to decide the state of the constant voltage driver1 GND1 H-bridge output terminal 1A of the constant voltage driver1 H-bridge output terminal 1B of the constant voltage driver1 Power supply for Motor1, 2 H-bridge output terminal 2A of the constant voltage driver2 H-bridge output terminal 2B of the constant voltage driver2 H-bridge output terminal 3A of the constant voltage driver3 H-bridge output terminal 3B of the constant voltage driver3 Power supply for Motor3, 4 H-bridge output terminal 4A of the constant voltage driver4 H-bridge output terminal 4B of the constant voltage driver4 GND2 It is used to control the output voltage of constant voltage driver1~2 It is used to control the output voltage of constant voltage driver3~4 Voltage for current limit control of the constant current driver5 Voltage for current limit control of the constant current driver6 Reference voltage being divided for VC1~4 to individually use GND Power save which can force all outputs to become open state Power supply Power supply for input voltage of charge pump Capacitor terminal 1 for charge pump Capacitor terminal 2 for charge pump Capacitor terminal 3 for charge pump Capacitor terminal 4 for charge pump Output voltage of charge pump GND Current detection terminal for the constant current driver5 H-bridge output terminal 5A of the constant current driver5 H-bridge output terminal 5B of the constant current driver5 Power supply for Motor5, 6 H-bridge output terminal 6A of the constant current driver6 H-bridge output terminal 6B of the constant current driver6 Current detection terminal for the constant current driver6
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 3 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Absolute Maximum Ratings Item Supply voltage VCC Supply voltage VM Supply voltage PVCC Charge pump voltage Control input voltage Power dissipation Operating temperature Junction temperature Storage temperature range Maximum output current Symbol VCC VM PVCC VG VIN Pd Topr Tj Tstg Iout Ratings -0.5 ~ +5.5 -0.5 ~ +5.5 -0.5 ~ +5.5 12 -0.5 ~ VCC 1000 -20 ~ +85 ~ +150 -55 ~ +150 800 Unit V V V V V mW C C C mA
Recommended Operating Conditions(Ta=25C) Item Supply voltage VCC Supply voltage VM1,2,3 Charge pump voltage Control input voltage H Bridge output current Logic input frequency Capacitor for Charge pump Symbol VCC VM1,2,3 VG VIN Iout Fin CCP Ratings +2.5 ~ +5.5 +1.9 ~ +5.5 +7.5~ +10.0 0 ~ VCC -400 ~ +400 0 ~ 100 0.01 ~ 0.1 Unit V V V V mA kHz F
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 4 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Electrical Characteristic
(Ta=25 C , VCC=PVCC=3.0V, VM=2.5V, R L1 = R L 2 = R L3 = R L 4 = 7.5 , R L5 = R L6 = 5 )
Parameter
Symbol
Condition
Values Unit Min. Typ. Max. 0 1.5 10 3
Whole circuits Circuit current at standby ICCST PS=L Circuit current1 ICC1 PS=H, IN1A1B~6A6B=L
A
mA mA mA mA mA
Circuit current2 Circuit current3 Circuit current4 Circuit current5
ICC2 ICC3 ICC4 ICC5
PS=H, IN1A or IN1B or IN2A or IN2B=H PS=H, IN3A or IN3B or IN4A or IN4B=H PS=H, IN5A or IN5B or IN6A or IN6B=H PS=H,IN1A=IN2A=IN3A=IN4A =IN5A=IN6A=H or IN1B=IN2B=IN3B=IN4B=IN5B =IN6B=H
-
2.65 2.65 2.65 4.90
4.7 4.7 4.7 5.5
Power save H level input voltage VPSH L level input voltage VPSL H level input voltage IPSH PS=3V L level input voltage IPSL PS=0V Pull-down resistance RIN Control input H level input voltage VINH L level input voltage VINL H level input voltage IINH VIN=3V L level input voltage IINL VIN=0V Pull-down resistance RIN Charge Pump Charge pump voltage VCP PVCC=5V,VG=PVCC*2 UVLO UVLO voltage VUVLO Vref VREF output voltage VREF Iout=0 ~ 1mA Constant voltage driver1,2(For AF/STP) Output ON Resistance RON Io=+-200mA, Sum of on-resistance Output constant voltage VO1 VC1=0.3V, Rload=7.5 Constant voltage driver3,4(For ZOOM) Output ON Resistance RON Io=+-200mA, Sum of on-resistance
2.0 -1 2.0 -1 9 1.8 0.88
5 0 1.5 5 0 1.5 10 2.0 0.90 1.20
0.8 20 0.8 20 2.2 0.92 1.50 1.60 1.50
V V A A
M
V V A A
M
V V V
1.40
1.50 1.20
V
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 5 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Output constant voltage
Constant current driver5,6
VO2
VC2=0.3V, Rload=7.5
1.40 287
1.50 1.00 300
1.60 1.25 313
V
Output ON Resistance Output Limit voltage
RON Io=+-300mA, Sum of on-resistance VOL RFG=1 , VC3=VC4=0.3V
mV
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 6 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Input-output logic table
Driver1,2: Stepping motor constant-voltage control for AF
Input IN1A L H H L L L L L H H IN1B L L L L H H H L L H IN2A L L H H H L L L L H IN2B L L L L L L H H H H OUT1A Z H H Z L L L Z H H Output OUT1B OUT2A Z Z L Z L H Z H H H H Z H L Z L L L H H OUT2B Z Z L L L Z H H H H Mode Standby
1,2 phase excitation
BRAKE
Stepping motor constant-voltage control for ZOOM or DC motor drive
Input IN3A L H H L L L L L H H IN3B L L L L H H H L L H IN4A L L H H H L L L L H IN4B L L L L L L H H H H OUT3A Z H H Z L L L Z H H Output OUT3B OUT4A Z Z L Z L H Z H H H H Z H L Z L L L H H OUT4B Z Z L L L Z H H H H Mode Standby
1,2 phase excitation
BRAKE
VCM constant-current control for SH/AE or stepping motor drive
Input IN5A L H L IN5B L L H IN6A L IN6B L OUT5A Z H L Output OUT5B OUT6A Z Z L H H L L L OUT6B Z Mode Standby SH&AE
H L H H H
L H L H
L H L
BRAKE
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 7 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver Typical Characteristics
VCC v.s. Vref 0.95 0.94 0.93 0.92 0.91 Vref (V) VCC=PVCC=VM=5V,T=25'C
Temperature v.s. Vref 0.95 0.94 0.93 0.92 0.91 Vref(V) 0.9 0.89 0.88 0.87 0.86 VCC=PVCC=VM=5V
0.9 0.89 0.88 0.87 0.86 0.85 2.5 3 3.5 4 VCC (V) 4.5 5 5.5
0.85 -20
-10
0
10
20 30 40 Tempature ('C)
50
60
70
80
5 4.5
VCC v.s. I(I=ICC+IPVCC) VG=PVCC*2,INxA=INxB=L
VCC v.s. I(I=ICC+IPVCC) 30 VG=PVCC*3,INxA=INxB=L
25
4 3.5 I (mA) 3 2.5
10 I (mA) 20
15
2 1.5 1 2.5
5
3
3.5
4 VCC (V)
4.5
5
5.5
2.5
3
3.5
4 VCC (V)
4.5
5
5.5
VCC v.s. Rds(on) (CH1~CH4) 3 2.8 VCC=PVCC=VM,VG=PVCC*2,Io=200mA
VCC v.s. Rds(on)(CH1~CH4) 1.8 VCC=PVCC=VM,VG=PVCC*3,Io=200mA
1.7
2.6 2.4 Ron (ohm) 2.2 2 1.8 1.6
1.6 Ron (ohm)
1.5
1.4
1.3
1.4 1.2 2.5
3
3.5
4 VCC (V)
4.5
5
5.5
1.2 2.5
3
3.5
4 VCC (V)
4.5
5
5.5
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 8 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
VCC v.s. Rds(on)(CH5&CH6) 2 VCC=PVCC=VM,VG=PVCC*2,Io=300mA
VCC v.s. Rds(on)(CH5&CH6) 2 VCC=PVCC=VM,VG=PVCC*3,Io=300mA
1.8
1.8
1.6 Ron (ohm)
1.6 Ron (ohm)
1.4
1.4
1.2
1.2
1
1
0.8 2.5
3
3.5
4 VCC (V)
4.5
5
5.5
0.8 2.5
3
3.5
4 VCC (V)
4.5
5
5.5
Io1 v.s. efficiency VCC=PVCC=VM=5V, VG=PVCC x 2,Vo1=4V(CH1) Pin=VCC*(ICC+IPVCC+IM), Pout=Vo*Io
Io1,Io2 v.s. efficiency VCC=PVCC=VM=5V, VG=PVCC*2,Vo=Vo1=Vo2=4V(CH1,Ch2) Pin=VCC*(ICC+IPVCC+IM), Pout=Vo*Io=Vo*(Io1+Io2)
90 85 80 75 70 65 60 55 50 50
90 85 80 75 70 65 60 55 50 50
efficiency (%)
efficiency (%)
100
150
200
250 300 Io1 (mA)
350
400
450
500
100
150
200
250
300
350
400
450
500
Io1=Io2 (mA)
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 9 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver Application reference 1
PS : H active L stand-by
0.1uF 0.1uF
PS
VCC PGND3 PVCC CP1 CP2
CP3
CP4
VG
IN1A IN1B IN2A IN2B
VM1 OUT1A OUT1B OUT2A OUT2B PGND1
M
MCU
IN3A IN3B IN4A IN4B
AT5556
IN5A IN5B IN6A IN6B GND
VM2 OUT3A OUT3B OUT4A OUT4B PGND2
M
VM3 OUT5A OUT5B OUT6A OUT6B
M
Vref
VC1 VC2 VC3 VC4 RFG1
RFG2
0.1uF
30k
30k
1
1
15k
15k
Output voltage of charge pump(two times PVCC) VG = PVCC x 2 Constant voltageCH1&CH2 VO = VC 1 x 5 - VSAT CH3&CH4 VO = VC 2 x 5 - VSAT Constant currentCH5 I o = VC 3 / RFG1 CH6 I o = VC 4 / RFG 2
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 10 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver Application reference 2
VCC PS : H active L stand-by PVCC
0.1uF 0.1uF
VG PS VCC PGND3 PVCC CP1 CP2 CP3 CP4 VG
0.1uF
VM IN1A IN1B IN2A IN2B VM1 OUT1A OUT1B OUT2A OUT2B PGND1
M
MCU
IN3A IN3B IN4A IN4B
AT5556
IN5A IN5B IN6A IN6B GND
VM2 OUT3A OUT3B OUT4A OUT4B PGND2
M
VM3 OUT5A OUT5B OUT6A OUT6B
M
Vref
VC1 VC2 VC3 VC4 RFG1
RFG2
0.1uF
30k
30k
1
1
15k
15k
Output voltage of charge pump(three times PVCC) VG = PVCC x 3 Constant voltage CH1&CH2 VO = VC 1 x 5 - VSAT CH3&CH4 VO = VC 2 x 5 - VSAT Constant current CH5 I o = VC 3 / RFG1 CH6 I o = VC 4 / RFG 2
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 11 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Application reference 3
M_VCC=4V PS : H active L stand-by
0.1uF 0.1uF 0.1uF 1uF
PS
VCC PGND3 PVCC CP1 CP2
CP3
CP4
VG
IN1A IN1B IN2A IN2B
VM1 OUT1A OUT1B OUT2A OUT2B PGND1
Aperture
47u
MCU
IN3A IN3B IN4A IN4B
AT5556
IN5A IN5B IN6A IN6B GND
VM2 OUT3A OUT3B OUT4A OUT4B PGND2
M
AF
VM3 OUT5A OUT5B OUT6A OUT6B
Zoom Shutter
Vref
VC1 VC2 VC3 VC4 RFG1
RFG2
0.1uF
20k
30k
1
70k
20k
Output voltage of charge pump(three times PVCC) VG = PVCC x 3 Constant voltage CH1&CH2 VO = VC 1 x 5 - VSAT Saturation mode CH3&CH4&CH5 VO = VM - 2VSAT Constant currentCH6 I o = VC 4 / RFG 2
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 12 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Application reference 4
M_VCC=5V PS : H active L stand-by
0.1uF 0.1uF 0.1uF 1uF
PS
VCC PGND3 PVCC CP1 CP2
CP3
CP4
VG
IN1A IN1B IN2A IN2B
VM1 OUT1A OUT1B OUT2A OUT2B PGND1
Zoom
M
47u AF
MCU
IN3A IN3B IN4A IN4B
AT5556
IN5A IN5B IN6A IN6B GND
VM2 OUT3A OUT3B OUT4A OUT4B PGND2
0.1u IRIS
VM3 OUT5A OUT5B OUT6A OUT6B
0.1u Shutter
Vref
VC1 VC2 VC3 VC4 RFG1
RFG2
0.1uF
5.11k
30.1k
1.8
47k
15k
Output voltage of charge pump(three times PVCC) VG = PVCC x 3 Constant voltage CH1&CH2 VO = VC 1 x 5 - VSAT CH3&CH4 VO = VC 2 x 5 - VSAT Constant currentCH6 I o = VC 4 / RFG 2
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 13 04/12/10
AT5556
Preliminary Product Information
6-Channel DSC Motor Driver
Package Description
LQFP48
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 14 04/12/10

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