E520.03A61AC ELMOS Semiconductor, E520.03A61AC Datasheet - Page 16

• Manufacturer Part Number: E520.03A61AC
• Description: Motor / Motion / Ignition Controllers & Drivers 8x low side driver
• Manufacturer: ELMOS Semiconductor
• Type: Unipolar Stepper Motor Driverr

Specifications of E520.03A61AC

• Rohs: yes
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Current: 5 mA
• Operating Temperature: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Number Of Outputs: 8
• Output Current: 300 mA
• Output Voltage: 3 V to 25 V
• Power Dissipation: 2.8 W

The time constant TSCL of the short circuit protection
may be selected using the OCC bit, located in the SPI
register at address 0110
OCC = 0
OCC = 1
When an output has been disabled due to a short cir-
cuit condition (OUTx = inactive HIGH), the related out-
put status bit STATx will set to 1
col. The actual output status is being sampled at the
beginning of each protocol when CEB goes low. Polling
the output status bits in the serial SPI protocol is the ap-
propriate way to detect if a short circuit condition has
been detected. When the output has been enabled by
writing a 0
(OUTx = active LOW) and the related output status bit is
found in 1
This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifi cations and information herein without notice.
12 / 8 CHANNEL LOW SIDE DRIVER WITH STALL DETECTION
PRODUCTION DATA - JUL 24, 2012
ELMOS Semiconductor AG
b
b
corresponds to a time constant of typically 37ms
corresponds to a time constant of typically 2ms
OUT11
OUT10
SCLK
OUT1
OUT0
OUT11
OUT10
b
OUT0
mode
SCLK
OUT1
OUT0
OUT0
mode
b
CEB
state in a subsequent SPI protocol, this indi-
CEB
SI
SO
SI
SO
into the shift register via the serial input SI
OUT0
active
ADR
SUP
OUT0
active
3
SUP
ADR
OVT
2
OVT
ADR
ATT
1
ATT
ADR
b
OC
READ
0
OC
.
READ
DI
11
DO
11
DI
11
DO
11
current limited
DI
10
DO
10
DI
10
DO
10
<T
current limited
DI
DO
OUT11
OUT10
9
9
DI
DO
OUT1
OUT11
OUT10
SCL
9
9
OUT1
Figure 5. Temporary Short Circuit (e.g. Rush in Current)
b
DI
DO
DI
DO
T
8
8
8
8
SCL
in the next SPI proto-
DI
DO
DI
DO
7
7
7
7
DI
DO
DI
DO
6
6
6
6
Figure 6. Trigger of Short Circuit Shut-off
DI
DO
DI
DO
5
5
5
5
DI
DO
4
4
DI
DO
4
4
OUT0
DI
DO
DI
DO
3
3
3
3
DI
DO
DI
DO
2
2
2
2
DI
DO
DI
DO
1
1
1
1
DO
DO
0
0
DI
DI
0
0
Data Sheet
16/29
cates that a short circuit condition has occurred.
In the period between detecting an output current level
of I
output is operating as constant current source. This fea-
ture is advantageous when driving loads with a signifi -
cant inrush current like lamps. By limiting the current,
the load is switched on safely. If the load current has set-
tled to a level below I
circuit protection will intentionally not be activated.
In case of very low duty cycles the ON phase of the PWM
may become shorter than the settling and latency time
of the short circuit detection. Under these conditions
the short circuit protection will not be triggered. Due to
the low duty cycle the power dissipation and thermal
stress of the output driver will also be low under these
conditions.
SUP
ADR
SUP
3
OVT
ADR
OVT
SCL
2
ADR
ATT
ATT
1
and disabling the output after the time T
ADR
READ
OC
OC
READ
0
DI
11
DO
11
DI
11
DO
11
OUT11
OUT10
OUT11
OUT10
active
OUT1
O
OUT1
OUT0
DI
10
DO
10
DI
10
DO
10
shut off
shut off
DI
DO
DI
DO
9
9
9
9
DI
DO
8
8
DI
DO
8
8
DI
DO
7
7
DI
DO
7
7
DI
DO
6
6
DI
DO
6
6
DI
DO
5
5
SCL
DI
DO
5
5
DI
DO
4
4
DI
DO
4
4
within the time T
E520.01/02/03/08
DI
DO
3
3
DI
DO
3
3
DI
DO
2
2
DI
DO
DI
DO
2
2
2
2
DI
DO
2
2
DI
DO
1
1
DI
DO
1
1
QM-No.: 25DS0054E.02
DO
0
DI
DO
0
DI
0
0
OUT11
OUT10
OUT1
OUT11
OUT10
OUT1
OUT0
SUP
SCL
ADR
SUP
3
, the short
SCL
, the