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PDF AMIS-30522 Data sheet ( Hoja de datos )
| Número de pieza | AMIS-30522 | |
| Descripción | Micro-Stepping Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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AMIS-30522
Micro-Stepping Motor Driver
1.0 Introduction
The AMIS-30522 is a micro-stepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and a
SPI interface with an external microcontroller. It has an on-chip voltage regulator, reset-output and watchdog reset, able to supply
peripheral devices. AMIS-30522 contains a current-translation table and takes the next micro-step depending on the clock signal on
the “NXT” input pin and the status of the “DIR” (=direction) register or input pin. The chip provides a so-called “speed and load
angle” output. This allows the creation of stall detection algorithms and control loops based on load-angle to adjust torque and
speed. It is using a proprietary PWM algorithm for reliable current control.
The AMIS-30522 is implemented in I2T100 technology, enabling both high-voltage analog circuitry and digital functionality on the
same chip. The chip is fully compatible with the automotive voltage requirements.
The AMIS-30522 is ideally suited for general-purpose stepper motor applications in the automotive, industrial, medical, and marine
environment. With the on-chip voltage regulator it further reduces the BOM for mechatronic stepper applications.
2.0 Key Features
• Dual H-Bridge for 2-phase stepper motors
• Programmable peak-current up to 1.6A using a 5-bit current DAC
• On-chip current translator
• SPI interface
• Speed and load angle output
• Seven step modes from full step up to 32 micro-steps
• Fully integrated current-sense
• PWM current control with automatic selection of fast and slow decay
• Low EMC PWM with selectable voltage slopes
• Active fly-back diodes
• Full output protection and diagnosis
• Thermal warning and shutdown
• Compatible with 5V and 3.3V microcontrollers
• Integrated 5V regulator to supply external microcontroller
• Integrated reset function to reset external microcontroller
• Integrated watchdog function
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3.0 Ordering information
Table 1: Ordering Information
Part Number
Package
AMIS30522C5222G NQFP-32 (7 x 7mm)
AMIS30522C5222RG NQFP-32 (7 x 7mm)
Shipping Configuration
Tube/Tray
Tape & Reel
Temperature Range
-40°C to125°C
-40°C to 125°C
Device/Family Specific #1
1600mA
1600mA
©2008 SCILLC. All rights reserved.
June 2008 – Rev. 2
Publication Order Number:
AMIS30522/D
1 page  
AMIS-30522
6.3 DC Parameters
The DC parameters are given for VBB and temperature in their operating ranges unless otherwise specified. Convention: currents
flowing in the circuit are defined as positive.
Table 5: DC parameters
Symbol Pin(s)
Parameter
Remark/Test Conditions
Supply & Voltage Regulator
VBB
IBB
VBB
Nominal operating supply range
Total internal current consumption Unloaded outputs
VDD Regulated Output Voltage
IINT
Internal load current
Unloaded outputs
ILOAD
IDDLIM
ILOAD_PD
VDD
Max. Output Current (external and
internal loads)
Current limitation
Output current in Power Down
6V < VBB < 8V
8V < VBB < 30V
Pin shorted to ground
Power-on-Reset (POR)
VDDH
VDDL
VDD
Internal POR comparator threshold VDD rising
Internal POR comparator threshold VDD falling
Motor Driver
IMDmax,Peak
IMDmax,RMS
MOTXP
MOTXN
MOTYP
Max current through motor coil in
normal operation
Max RMS current through coil in normal
operation
IMDabs
IMDrel
ISET_TC1
MOTYN
Absolute error on coil current
Error on current ratio Icoilx / Icoily
Temperature coefficient of coil current
set-level, CUR[4:0] = 0 ..27
-40 °C ≤ Tj ≤ 160 °C
ISET_TC2
Temperature coefficient of coil current
set-level, CUR[4:0] = 28 ..31
-40 °C ≤ Tj ≤ 160 °C
RHS
RLS3
RLS2
RLS1
RLS0
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On-resistance high-side driver,
CUR[4:0] = 0...31
On-resistance low-side driver,
CUR[4:0] = 23...31
On-resistance low-side driver,
CUR[4:0] = 16...22
On-resistance low-side driver,
CUR[4:0] = 9...15
On-resistance low-side driver,
CUR[4:0] = 0...8
Pull down current
Vbb = 12V, Tj = 27 °C
Vbb = 12V, Tj = 160 °C
Vbb = 12V, Tj = 27 °C
Vbb = 12V, Tj = 160 °C
Vbb = 12V, Tj = 27 °C
Vbb = 12V, Tj = 160 °C
Vbb = 12V, Tj = 27 °C
Vbb = 12V, Tj = 160 °C
Vbb = 12V, Tj = 27 °C
Vbb = 12V, Tj = 160 °C
HiZ mode
Digital Inputs
Ileak
VIL
VIH
Rpd_CLR
Rpd_TST
DI, CLK
NXT, DIR
CLR, CSB
CLR
TST0
Input Leakage (3)
Logic Low Threshold
Logic High Threshold
Internal Pull Down Resistor
Internal Pull Down Resistor
Tj = 160 °C
Digital Outputs
VOL DO, ERRB,
PORB/WD
Logic Low level open drain
IOL = 5 mA
Thermal Warning & Shutdown
Ttw
Ttsd(1) (2)
Thermal Warning
Thermal shutdown
Charge Pump
Vcp
Cbuffer
Cpump
Notes:
VCP
CPP CPN
Output voltage
External buffer capacitor
External pump capacitor
6V< VBB < 15V
15V < VBB < 30V
(1) No more than 100 cumulated hours in life time above Ttw.
(2) Thermal shutdown and low temperature warning are derived from thermal warning.
(3) Not valid for pins with internal pull-down resistor.
Min Typ Max Unit
6 30 V
8 mA
4.75 5 5.25 V
20
50
150 mA
1
4.0 4.25 4.4 V
3.68 V
1600
mA
800 mA
-10 10 %
-7 7 %
-240
ppm/K
-490
0.45
0.94
0.45
0.94
0.90
1.9
1.8
3.8
3.6
7.5
0.5
ppm/K
0.56 Ω
1.25 Ω
0.56 Ω
1.25 Ω
1.2 Ω
2.5 Ω
2.3 Ω
5.0 Ω
4.5 Ω
10 Ω
mA
0
2.20
120
3
1
0.65
VDD
300
9
µA
V
V
kΩ
kΩ
0.5 V
138
VBB+12.5
180
180
145
Ttw + 20
152
2 * VBB – 2.5
VBB+14
220
220
VBB+15.5
470
470
°C
°C
V
V
nF
nF
Rev. 2 | Page 5 of 29 | www.onsemi.com
5 Page 
AMIS-30522
Figure 8: Translator Table: Circular and Square
8.3.2. Direction
The direction of rotation is selected by means of following combination of the DIR input pin and the SPI-controlled direction bit
<DIRCTRL>. (Table 16)
8.3.3. NXT input
Changes on the NXT input will move the motor current one step up/down in the translator table. Depending on the NXT-polarity bit
<NXTP> (Table 16), the next step is initiated either on the rising edge or the falling edge of the NXT input.
tNXT_HI
tNXT_LO
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NXT
0,5 VCC
tDIR_SET
tDIR_HOLD
DIR VALID
Figure 9: NXT-input Timing Diagram
PC20070609.1
Table 11: Timing Table NXT Pin
Symbol
Parameter
tNXT_HI
tNXT_LO
tDIR_SET
tDIR_HOLD
NXT minimum, high pulse width
NXT minimum, low pulse width
NXT hold time, following change of DIR
NXT hold time, before change of DIR
Min.
2
2
0.5
0.5
Typ.
Max.
Unit
µs
µs
µs
µs
Rev. 2 | Page 11 of 29 | www.onsemi.com
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet AMIS-30522.PDF ] | |
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