E981.18A39FB ELMOS Semiconductor, E981.18A39FB Datasheet - Page 3

• 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
1.2
1.) The max. loop inductance is limited to 56µH. It is valid for a closed loop and for an open loop
condition during fault modes described in chapter 4.3.
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
Component
D1, D2
R
C
C
C
L
C
R
C
R
SQUIB
AOUT
EMCX
W
External component list
TANK
BUF
REF
V5
W
1.)
Block capacitance
Energy Reserve capacitor U
Capacitance to buffer AOUT
Energy Reserve capacitor V
Reference for squib
resistance measurement
EMC filtering for squib
wiring parasitic resistance
wiring parasitic inductance
Squib resistor before firing
Diode for reverse current
protection
Functionality
Table 1 : Ratings for external components
Page 3 of 63
A
Data Sheet
X
10nF
10pF
1.7
Min
0
0
3.3mF
2.15
2.2µF
47nF
10nF
8.2
S1G
Typ
7 H
1
QM-No.: 25DS0072E.00
470nF
56 H
15µF
3.5
2.5
Max
TBD
10
1nF
+/-37%
+/-37%
+/-37%
+/-37%
+/-3%
+/-37%
E981.18
Tolerances