E520.03A61AC ELMOS Semiconductor, E520.03A61AC Datasheet - Page 23

• 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

Recommended configurations for relay driver mode are:
- RHEx=1
- CLMP[1:0]=00
- OUTx=0
Comment: If RHEx=1, the states of the PWEx, PWMAy, PWMBy, PWMCy and LOG bits are not relevant for the relevant driver chan-
nel. All channels running in V
Relay Pull-In and Hold-Phase
For the Pull-in phase the driver should be driven with
100% duty-cycle (see table below)
After a time the driver may be change to Hold phase by the external controller.
Table 6. Driver Modes
Output clamping recommendations
Although the output drivers of the E520.0x IC provide a clamping functionality for inductive loads, an external free
wheeling diode to battery voltage level is recommended when using PWM modes with inductive loads.
6.10 Smart LED Driving with Logarithmic PWM Mode
- Duty cycles from 0.1% to 100% can be generated with only 5bit register calculations in the external µC.
- 3 PWM sources for driving 3 - colour – LEDs.
Each LED can be set to constant off, constant on or PWM
PWM frequency is fixed with typically 245Hz. PWM duty cycle is controlled by logarithmic counter characteristic
with 5 bit resolution. The logarithmic PWM offers 32 different duty cycle values,.
This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
OUTx
1
0
0
12 / 8 ChANNeL LOw SIDe DRIveR wITh STALL DeTeCTION
PRODUCTION DATA - JUL 24, 2012
b
b
b
ELMOS Semiconductor AG
b
b
in SPI register 0100
or 1
RHEx
X
0
1
b
b
b
b
b
in SPI register 0000
to use the fixed clamping mode
BATsense
13
12
11
10
9
8
7
6
5
4
3
2
1
0
LS driver mode
Permanently off
Permanently on in pull-in mode
Hold mode with adaptive PWM
0
b
to switch the driver into Adapted PWM mode
Adapted PWM Mode are driven with the same frequency (25kHz) and duty cycle.
Figure 11. Automatic PWM Generation for Relays
b
to activate or deactivate the driver
5
10
VBAT [ V ]
Data Sheet
23/29
15
20
25
e520.01/02/03/08
Min.
Max.
QM-No.: 25DS0054E.02