AMIS-30522 Datasheet, PDF (5/28 Pages) AMI SEMICONDUCTOR – Micro-stepping Motor Driver

AMIS-30522 Micro-stepping Motor Driver
Data Sheet
6.3 DC Parameters
The DC parameters are given for V_BB 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 and Voltage Regulator
V_BB
I_BB
V_DD
I_INT
I_LOAD
VBB
VDD
Nominal operating supply range
Total internal current consumption
Regulated output voltage
Internal load current
Max. output current (external and
internal loads)
I_DDLIM
Current limitation
I_{LOAD_PD}
Output current in power down
Power-on-Reset (POR)
Unloaded outputs
Unloaded outputs
6V < V_BB < 8V
8V < V_BB < 30V
Pin shorted to ground
V_DDH
V_DDL
Motordriver
VDD
Internal POR comparator threshold
Internal POR comparator threshold
VDD rising
VDD falling
I_MDmax,Peak
Max current through motor coil in
normal operation
I_MDmax,RMS
Max RMS current through coil in normal
operation
I_MDabs
I_MDrel
R_HS
R_LS3
R_LS2
MOTXP
MOTXN
MOTYP
MOTYN
Absolute error on coil current
Error on current ratio I_coilx / I_coily
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
R_LS1
On-resistance low-side driver,
CUR[4:0] = 9...15
R_LS0
On-resistance low-side driver,
CUR[4:0] = 0...8
I_Mpd
Pull-down current
Logic Inputs
I_leak
DI, CLK Input leakage ⁽³⁾
V_inL
NXT, DIR Logic low threshold
V_inH
CLR, CSB _{Logic high threshold}
R_pd
CLR
TST0
Internal pull-down resistor
V_bb = 12V, T_j = 27 °C
V_bb = 12V, T_j = 160 °C
V_bb = 12V, T_j = 27 °C
V_bb = 12V, T_j = 160 °C
V_bb = 12V, T_j = 27 °C
V_bb = 12V, T_j = 160 °C
V_bb = 12V, T_j = 27 °C
V_bb = 12V, T_j = 160 °C
V_bb = 12V, T_j = 27 °C
V_bb = 12V, T_j = 160 °C
HiZ mode
Tj = 160 °C
Thermal Warning and Shutdown
T_tw
T ^{(1) (2)}
tsd
Charge Pump
Thermal warning
Thermal shutdown
V_cp
C_buffer
C_pump
Notes:
VCP ^{Output voltage}
External buffer capacitor
CPP CPN External pump capacitor
6V< V_BB < 15V
15V < V_BB < 30V
(1) No more than 100 cumulated hours in life time above Tt_w.
(2) Thermal shutdown and low temperature warning are derived from thermal warning.
(3) Not valid for pins with internal pull-down resistor.
Min.
6
4.75
20
50
1
4.0
Typ.
5
Max.
Unit
30
V
8
mA
5.25
V
150
mA
4.25
4.4
V
3.68
V
-10
-7
3.5
120
1600
800
0.45
0.94
0.45
0.94
0.90
1.9
1.8
3.8
3.6
7.5
0.5
mA
mA
10
%
7
%
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
1
µA
1.5
V
V
300
kΩ
138
145
152
°C
T_tw + 20
°C
2 * V_BB – 2.5
V
V_BB+12.5
V_BB+14
V_BB+15.5
V
180
220
470
nF
180
220
470
nF
AMI Semiconductor – June 2007, M-20684-001
5
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