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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Features * Independent 5-Channel H-Bridge * Built-in 4 constant voltage drivers, all of those drivers with brake function. * Built-in 1 constant current drivers with brake function. * Low on-resistance <1.20 (typ.) * Low Voltage operation * Built-in Thermal Shutdown Function * QFN-32 Package Block Diagram
VCC AGND
General Description The AT5558 is a 5-channel H-bridge drivers IC for DSC motor application. It built in with 4 constant voltage drivers and 1 constant current block to drive auto-focus, zoom, shutter, auto-exposure motors. Applications *DSC motor Driver * Protected by U.S. Patent #6,943,514
Thermal Shutdown and UVLO
VM1 OUT1A OUT1B OUT2A OUT2B
IN1A IN1B IN2A IN2B
H-Bridge
H-Bridge
IN3A IN3B IN4A IN4B
PGND1
Logic Block
Pre Driver
H-Bridge H-Bridge
VM2 OUT3A OUT3B OUT4A OUT4B
IN5A IN5B
PGND2 VM3 OUT5A OUT5B
H-Bridge
Vref
Vref VC12 VC3 VC4 VC5 RFG
Aimtron reserves the right without notice to change this circuitry and specifications.
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Pin Configuration
OUT2B OUT1A OUT1B AGND VC12 VM1 VC4 32 VC5 VREF PS VCC IN4A IN4B IN5A IN5B 1 2 3 4 Exposed PAD* 5 6 7 8 9 RFG 10 OUT5A 11 OUT5B 12 VM3 13 OUT4A 14 OUT4B 15 VM2 16 OUT3A 20 IN2A 19 IN1B 18 IN1A 17 OUT3B
*The exposed pad must be connected to GND. Ordering Information Part number AT5558N_GRE Package QFN32, Green Marking AT5558N
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VC3 31
30
29
28
27
26
25 24 OUT2A 23 IN3B 22 IN3A 21 IN2B
AT5558
Preliminary Product Information
5-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 Bottom VC5 VREF PS VCC IN4A IN4B IN5A IN5B RFG OUT5A OUT5B VM3 OUT4A OUT4B VM2 OUT3A OUT3B IN1A IN1B IN2A IN2B IN3A IN3B OUT2A OUT2B VM1 OUT1A OUT1B AGND VC12 VC3 VC4 PGND1, 2
I/O
I O I P I I I I O O P P O O P O O I I I I I I O O P O O G I I I G
Description
Voltage for current limit control of the constant current driver5 Reference voltage being divided for VC12, 3, 4, 5 to individually use Power save which can force all outputs to become open state Power supply It combines IN4A to decide the state of the constant current driver4 It combines IN4B to decide the state of the constant voltage driver4 It combines IN5A to decide the state of the constant current driver5 It combines IN5B to decide the state of the constant current driver5 Voltage for current limit control of the constant current driver5 H-bridge output terminal 5A of the constant voltage driver5 H-bridge output terminal 5B of the constant voltage driver5 Power supply for channel 5 H-bridge output terminal 4A of the constant voltage driver4 H-bridge output terminal 4B of the constant voltage driver4 Power supply for channel3, 4 H-bridge output terminal 3A of the constant voltage driver3 H-bridge output terminal 3B of the constant voltage driver3 It combines IN1A to decide the state of the constant voltage driver1 It combines IN1B to decide the state of the constant voltage driver1 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 IN3A to decide the state of the constant voltage driver3 It combines IN3B to decide the state of the constant voltage driver3 H-bridge output terminal 2A of the constant voltage driver2 H-bridge output terminal 2B of the constant voltage driver2 Power supply for channel 1, 2 H-bridge output terminal 1A of the constant voltage driver1 H-bridge output terminal 1B of the constant voltage driver1 GND 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 It is used to control the output voltage of constant voltage driver4 GND
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Absolute Maximum Ratings Item Supply voltage VCC Supply voltage VM Control input voltage Power dissipation Operating temperature Junction temperature Storage temperature range Maximum output current ESD Susceptibility *2 Symbol VCC VM VIN Pd Topr Tj Tstg Iout HBM MM Ratings +6.0 +6.0 VCC 1000 -20 ~ +85 ~ +150 -55 ~ +150 800 2 200 Unit V V V mW C C C mA KV V
1. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. Device are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF capacitor discharged through a 1.5K resistor into each pin.
Recommended Operating Conditions(Ta=25C) Item Supply voltage VCC Supply voltage VM1,2,3 Control input voltage H Bridge output current Logic input frequency Symbol VCC VM1,2,3 VIN Iout Fin Ratings +2.5 ~ +5.5 +1.9 ~ +5.5 0 ~ VCC -400 ~ +400 0 ~ 100 Unit V V V mA kHz
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Electrical Characteristic
(Ta=25 C , VCC=3.0V, VM1=VM2=VM3=5V, R L1 = R L2 = R L3 = R L4 15 , R L5 = 10 )
Parameter Whole circuits Circuit current1 at standby Circuit current1 at standby Circuit current1 Circuit current2 Circuit current3 Circuit current4 Circuit current5
Symbol
Condition
Values Unit Min. Typ. Max. 1 1 0.6 1.0 1.0 1.0 1.0 10 10 1.5 1.5 1.5 1.5 1.5
ICCST PS=L IVMST PS=L ICC1 PS=H, IN1A1B~5A5B=L 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=H PS=H,IN1A=IN2A=IN3A=IN4A =IN5A=H or IN1B=IN2B=IN3B=IN4B=IN5B =H
A A
mA mA mA mA mA
Power save H level input voltage VPSH L level input voltage VPSL H level input bias current IPSH PS=3V L level input bias current IPSL PS=0V Pull-down resistance RIN Control input H level input voltage VINH L level input voltage VINL H level input bias current IINH VIN=3V L level input bias current IINL VIN=0V Pull-down resistance RIN UVLO UVLO voltage VUVLO Vref VREF output voltage VREF Iout=0 ~ 1mA Constant voltage driver1, 2 Output ON Resistance RON Io=+-200mA, Sum of on-resistance Output constant voltage VO1 VC12=0.3V, Rload=7.5
2.0 -1 2.0 -1 1.8 0.98
5 0 1.5
5 0 1.5 2.0 1.00 1.20
0.8 20 0.8 20 2.2 1.02 1.75 1.60
V V A A
M
V V A A
M
V V
1.40
1.50
V
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Constant voltage driver3, 4
Output ON Resistance Output constant voltage RON Io=+-200mA, Sum of on-resistance VO2 VC3=VC4=0.3V, Rload=7.5 RON Io=+-300mA, Sum of on-resistance VOL RFG=1 , VC5=0.3V 1.20 1.40 1.50 1.75 1.60
V
Constant current driver5
Output ON Resistance Output Limit voltage 287 1.00 300 1.45 313
mV
Thermal Protection Circuit
Protection Temperature TSD 150
C
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Input-output logic table
Constant-voltage or saturation control (Channel 1, 2)
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 L Output OUT1B OUT2A Z Z L Z L H Z H H H H Z H L Z L L L L L OUT2B Z Z L L L Z H H H L Mode Standby
1,2 phase excitation
BRAKE
Constant-voltage or saturation control (Channel 3, 4)
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 L Output OUT3B OUT4A Z Z L Z L H Z H H H H Z H L Z L L L L L OUT4B Z Z L L L Z H H H L Mode Standby
1,2 phase excitation
BRAKE
Constant-current control or saturation control (Channel 5)
Input IN5A L H L H IN5B L L H H Output OUT5A Z H L L OUT5B Z L H L Mode
Standby SH&AE BRAKE
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver Application reference 1
M_VCC=4V PS : H active L stand-by
0.1uF
PS
VCC AGND
IN1A IN1B IN2A IN2B
AT5558
osicllation preventive capacitor
VM1 OUT1A OUT1B OUT2A OUT2B
0.01~0.1uF (option)
M
AF
0.01~0.1uF (option)
47uF
MCU
IN3A IN3B IN4A IN4B
PGND1 PGND2
IN5A IN5B
VM2 OUT3A OUT3B OUT4A OUT4B
Aperture
0.01~0.1uF (option)
Zoom
0.01~0.1uF (option)
VM3 OUT5A OUT5B
Shutter
0.01~0.1uF (option)
Vref
VC12 VC3 VC4 VC5
RFG
0.1uF
22k
75k
2
51k
43k
Saturation mode
Constant voltage
CH1&CH2&CH4
CH3
VO i = VM - RON x I O i , i = 1, 2, 4
VO 3 = VC 3 x 5 - 0.5 x RON x I O 3 I O 5 = VC 5 / RFG
Constant current
CH5
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver Application reference 2
M_VCC=5V PS : H active L stand-by
0.1uF
PS
VCC AGND
IN1A IN1B IN2A IN2B
AT5558
osicllation preventive capacitor
VM1 OUT1A OUT1B OUT2A OUT2B
0.01~0.1uF (option)
M
AF
0.01~0.1uF (option)
47uF
MCU
IN3A IN3B IN4A IN4B
PGND1 PGND2
VM2 OUT3A OUT3B OUT4A OUT4B
Iris
0.01~0.1uF (option)
Zoom
0.01~0.1uF (option)
IN5A IN5B VM3 OUT5A OUT5B
Shutter
0.01~0.1uF (option)
Vref
VC12 VC3 VC4 VC5
RFG
1
0.1uF
3.3k
20k
3.3k 100k
75k
100k
91k
25k
Constant voltage Constant current
CH1&CH2 CH3&CH4 CH5
VO i = VC 12 x 5 - 0.5 x RON x I O i , i = 1, 2 VO i = VC i x 5 - 0.5 x RON x I O i , i = 3, 4
I O 5 = VC 5 / RFG
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver Application reference 3
M_VCC=5V PS : H active L stand-by
0.1uF
PS
VCC AGND
IN1A IN1B IN2A IN2B
AT5558
osicllation preventive capacitor
VM1 OUT1A OUT1B OUT2A OUT2B
0.01~0.1uF (option)
M
AF
0.01~0.1uF (option)
47uF
MCU
IN3A IN3B IN4A IN4B
PGND1 PGND2
VM2 OUT3A OUT3B OUT4A OUT4B
Iris
0.01~0.1uF (option)
Zoom
0.01~0.1uF (option)
IN5A IN5B VM3 OUT5A OUT5B
Shutter
0.01~0.1uF (option)
Vref
VC12 VC3 VC4 VC5
RFG
1.8
0.1uF
7.5k
75k
30k
33k
Constant voltage
Constant current
CH1&CH2
CH3&CH4 CH5
VO i = VC 12 x 5 - 0.5 x RON x I O i , i = 1, 2 VO i = VC i x 5 - 0.5 x RON x I O i , i = 3, 4
I O 5 = VC 5 / RFG
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
PC Board layout 1. Due to PGND1 and PGND2 are bound to the bottom of the package, it should be noted that the bottom must be laid together with GND. 2. On the PCB, a hole should be placed in the location of the package bottom for debug issue.
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Package Description QFN32
SYMBOL
A A1 A3 b D D2 E E2 e k L
DIMENSION (MM) MIN. NOM. MAX. 0.70 0.75 0.80 0 0.02 0.05 0.2 REF 0.18 0.25 0.30 4.90 5.00 5.10 1.25 2.70 3.70 4.90 5.00 5.10 1.25 2.70 3.70 0.50 BSC 0.2 0.3 0.4 0.5
DIMENSION (MIL) MIN. NOM. MAX. 27.6 29.5 31.5 0 0.79 1.97 7.9 REF 7.1 9.8 11.8 193 197 201 49 106 146 193 197 201 49 106 146 19.7 BSC 7.9 11.8 15.7 19.7
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AT5558
Preliminary Product Information
5-Channel DSC Motor Driver
Reflow Profiles
Profile Feature
Average ramp-up rate (TL to TP) Preheat -Temperature Min(Tsmin) 100C -Temperature Max (Tsmax) 150C -Time (min to max)(ts) 60-120 seconds Tsmax to TL -Ramp-up Rate Time maintained above: -Temperature (TL) 183C 60-150 seconds -Time (tL) Peak Temperature(TP) 225+0/-5C 240+0/-5C 10-30 seconds Time within 5C of actual 10-30 seconds Peak Temperature (tP) Ramp-down Rate 6C/second max. 6 minutes max. Time 25C to Peak Temperature
Sn-Pb Eutectic Assembly Pb-Free Assembly Large Body Small Body Small Body Large Body Pkg. thickness Pkg. thickness Pkg. thickness Pkg. thickness 2.5mm or Pkg. <2.5mm or Pkg. 2.5mm or Pkg. 2.5mm or Pkg. volume volume volume volume 350mm3 3 3 <350mm 350mm 350mm3 3C/second max. 3C/second max.
150C 200C 60-180 seconds 3C/second max.
217C 60-150 seconds 245+0/-5C 10-30 seconds 250+0/-5C 20-40 seconds
3C/second max. 8 minutes max.
*All temperatures refer to topside of the package, measured on the package body surface.
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