AMIS-30522 Micro-stepping Motor Driver
Data Sheet
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
Supply and Voltage Regulator
VBB
IBB
VDD
IINT
Pin(s)
Parameter
Remark/Test Conditions
Min.
6
Typ.
Max.
Unit
Nominal operating supply range
30
8
5.25
V
mA
V
VBB
VDD
Total internal current consumption
Regulated output voltage
Internal load current
Max. output current (external and
internal loads)
Unloaded outputs
4.75
5
Unloaded outputs
6V < VBB < 8V
8V < VBB < 30V
20
50
ILOAD
IDDLIM
ILOAD_PD
Power-on-Reset (POR)
VDDH
VDDL
Motordriver
Current limitation
Output current in power down
Pin shorted to ground
150
4.4
mA
1
Internal POR comparator threshold
Internal POR comparator threshold
VDD rising
VDD falling
4.0
4.25
3.68
V
V
VDD
Max current through motor coil in
normal operation
Max RMS current through coil in normal
operation
Absolute error on coil current
Error on current ratio Icoilx / Icoily
IMDmax,Peak
1600
800
mA
mA
IMDmax,RMS
IMDabs
IMDrel
-10
-7
10
7
%
%
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
mA
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
0.45
0.94
0.45
0.94
0.90
1.9
1.8
3.8
3.6
7.5
0.56
1.25
0.56
1.25
1.2
2.5
2.3
5.0
4.5
10
On-resistance high-side driver,
CUR[4:0] = 0...31
RHS
MOTXP
MOTXN
MOTYP
MOTYN
On-resistance low-side driver,
CUR[4:0] = 23...31
RLS3
RLS2
RLS1
RLS0
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
IMpd
Pull-down current
0.5
Logic Inputs
Ileak
Input leakage (3)
Tj = 160 °C
1
1.5
µA
V
DI, CLK
NXT, DIR
CLR, CSB
VinL
VinH
Logic low threshold
Logic high threshold
3.5
V
CLR
TST0
Rpd
Internal pull-down resistor
120
300
152
kΩ
Thermal Warning and Shutdown
Ttw Thermal warning
138
145
Ttw + 20
°C
°C
(1) (2)
Ttsd
Charge Pump
Thermal shutdown
6V< VBB < 15V
15V < VBB < 30V
2 * VBB – 2.5
VBB+14
220
V
V
nF
nF
Vcp
Output voltage
VCP
VBB+12.5
180
180
VBB+15.5
470
470
Cbuffer
Cpump
External buffer capacitor
CPP CPN External pump capacitor
220
Notes:
(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.
AMI Semiconductor – June 2007, M-20684-001
5
www.amis.com