E981.18A39FB ELMOS Semiconductor, E981.18A39FB Datasheet - Page 37

• Manufacturer Part Number: E981.18A39FB
• Description: Motor / Motion / Ignition Controllers & Drivers 8ch squib driver
• Manufacturer: ELMOS Semiconductor
• Type: Airbag Squib Driverr

Specifications of E981.18A39FB

• Rohs: yes
• Product: Electromechanical Drivers
• Operating Supply Voltage: 5 V
• Supply Current: 4.3 mA
• Operating Temperature: - 40 C to + 95 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-44
• Number Of Outputs: 8
• Power Dissipation: 3.2 W

8-Channel Airbag Squib Driver
PRELIMINARY INFORMATION - AUG 01, 2011
7. FTL_AND:
8. V
9. V
10.V
11.V
12.V
13.ARM_REG:
14.UNLOCK_REG:
15.S2
16.S3
17.(V
2.)Signals at multiplexer S2,V
1. TxU, [x=1..8]:
2. R
3. V
3.)Signals at multiplexer S3, V
1. TxL, [x=1..8]:
2. SGND:
3.)Signals at multiplexer S4, 40 mA I
•
•
This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
ELMOS Semiconductor AG
IRREF:
TxU:
UX
A
LSDSUP
DIG
ANL
-
REF
:
+
/8:
/8, x=[1..4]:
-V
:
:
:
-
)∙ GAIN
/3:
+
-
non inverting input of the amplifier:
inverting input of the amplifier:
level. Otherwise maintains at logic low level (see Fig. 14 in chapter
5.7.1)
Logic AND combination of all 8 Firing Time Limiter (FTL). Switched to
logic high level only if all 8 CNTR's end values are reached. Otherwise
output maintains at logic low level. (see Fig. 14 in chapter
5.7.1).
V
V
V
internal digital supply V
internal analogue supply V
Logic_H
Logic_H
Positive input of AMX Amplifier
Negative Input of AMX Amplifier
Output of the AMX Amplifier
output voltages at the HSD
positive pin of external R
short non inverting input of the amplifier
output voltages at the LSD
connection to system ground
I
I
disabled, too
REFSQUIB
REFSQUIB
UX
A
LSDSUP
with attenuation of 8
with attenuation of 8
REFSQUIB
with attenuation of 3
to Pin RREF
to HSD outputs TxU, according TxU polarization buffer is
reference current source:
Page 37 of 63
ARM is active
UNLOCK is active
Data Sheet
DIG
REF
ANL
resistor
QM-No.: 25DS0072E.00
E981.18