MC33094 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC33094 Datasheet PDF : 16 Pages
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Freescale SMeCm3i3c0o94nductor, Inc.
Simplified Ignition Circuit
Ignition
+Vbat
Vin(-)
SW
2
6
9
4.0 k
Band-Gap Master
VCC Clamp and
Reference Bias
Zener Ref
10
Input
Comp and
7
Negative
Edge Filter
8
13
Adaptive
Capacitor
Output Current
11
Driver and Limiter
Internal
Logic
12
CR > CA
14
Comparator
Ramp
Capacitor
Stall
Capacitor
3
4
15
This device contains ??? active transistors.
ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V,
–40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.)
Characteristic
SUPPLY AND MASTER BIAS
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Supply Current (VCC = 16 V, Vin(–) = 0 V, VD = 3.0 V,
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VCA = VCR = VCS = VST = Open) (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Overvoltage Shutdown (Vin(–) = 0 V, VCA = VCR = Open,
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VCS = 3.0 V, VST = 28 V) (Note 2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start–VCC Latch (Vin(–) = 0 V, VCA = VCR = VCS = Open,
VST = 25 V, VD = 14 V, IST = 40 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adaptive Dwell High Supply Voltage (Vin(–) = 11 V, VCA = Open,
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VCR = 3.0 V, VCS = 3.0 V, VST = 6.0 V, VD = 13 V)
Symbol
ICC
VCC3
VCC5
Min
5.0
23.7
8.0
Typ
8.4
27.5
16.1
Max
Unit
18
mA
31
V
–
V
V
Threshold (Note 3)
Hysteresis (Note 4)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Master Bias Voltage (VCC = 16 V, Vin(–) = 0 V, VD = 3.0 V,
VCC1
VCC2(hys)
VMB
16.5
0.2
1.12
18.9
0.5
1.2
19.5
0.8
1.32
V
VCA = VCR = VCS = VST = Open) (Note 5)
NOTES: 1. Current sourced into Supply pin.
2. Ramp up VCC from 24 to 31 V in 0.1 V increments and note the supply voltage, VCC, which causes VO to fall below 1.0 V.
3. Ramp up VCC from 14 to 20 V in 0.1 V increments and measure VCC when ICA ≤ 2.0 µA.
4. Ramp up VCC from 20 to 14 V and measure VCC when ICA ≥ 2.0 µA and compute hysteresis difference from VCC1.
5. Voltage measured at Master Bias pin.
2
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