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93334-S08-R [UTC]

HIGH ENERGY IGNITION CIRCUIT; 高能点火电路
93334-S08-R
型号： 93334-S08-R
厂家： Unisonic Technologies    Unisonic Technologies
描述：

HIGH ENERGY IGNITION CIRCUIT
高能点火电路
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UNISONIC TECHNOLOGIES CO., LTD  
93334  
LINEAR INTEGRATED CIRCUIT  
HIGH ENERGY IGNITION  
CIRCUIT  
ꢀ
DESCRIPTION  
This device is designed to use the signal from a reluctor type  
ignition pickup to produce a well controlled output from a power  
darlington output transistor.  
SOP-8  
ꢀ
FEATURES  
* Very Low Peripheral Component Count  
* No Critical System Resistors  
* Wide Supply Voltage Operating Range (4.0V ~ 24V)  
* Overvoltage Shutdown (30V)  
* Dwell Automatically Adjusts to Produce Optimum Stored Energy  
without Waste  
*Pb-free plating product number: 93334L  
* Externally Adjustable Peak Current  
* Transient Protected Inputs and Outputs  
ꢀ ORDERING INFORMATION  
Order Number  
Package  
Packing  
Normal  
Lead Free Plating  
93334L-S08-R  
93334L-S08-T  
93334-S08-R  
93334-S08-T  
SOP-8  
SOP-8  
Tape Reel  
Tube  
93334L-S08-R  
(1)Packing Type  
(2)Package Type  
(3)Lead Plating  
(1) R: Tape Reel, T: Tube  
(2) S08: SOP-8  
(3) L: Lead Free Plating, Blank: Pb/Sn  
www.unisonic.com.tw  
1 of 5  
Copyright © 2005 Unisonic Technologies Co., Ltd  
QW-R121-006,A  
93334  
LINEAR INTEGRATED CIRCUIT  
ꢀ
PIN CONFIGURATION  
POWER GND  
IL  
1
2
3
4
8
7
SENS GND  
OUT  
UTC 93334  
C
6
VCC  
S1  
S2  
5
UNISONIC TECHNOLOGIES CO., LTD  
2 of 5  
QW-R121-006,A  
www.unisonic.com.tw  
93334  
LINEAR INTEGRATED CIRCUIT  
ꢀ
BLOCK DIAGRAM AND TYPICAL APPLICATION  
Figure 1  
RBAT  
300  
Ignition  
Coil  
Primary  
8.0mH  
CFilter  
0.2  
RDRIVE  
R1  
100  
20k  
S2  
5
Input  
Comparator  
+
-
Reluctor  
Pickup  
1.35H  
Power  
Output  
&OVP  
R
12k  
C1*  
470  
with  
Hysteresis  
S1  
4
R2  
20k  
C2*  
0.01  
RGAIN  
5.0k  
**BU941  
Dwell  
Reference  
Buffer  
+
-
C
3
Current  
Limit  
Sense  
CDWELL  
0.1  
RD2  
100  
RS  
0.075  
RD1  
35-350  
UTC 93334  
2
1
* Optional parts for extended transient protection  
** A350V zener clamp is required when using the standard BU941  
This clamp is not required if a selected version with VCEO(SUS) = 550V is used  
Power Ground  
Component Values  
Series resistance = 800Ω±10% @ 25℃, inductance= 1.35H @ 1.0kHz @ 15Vrms  
Pickup  
Coil  
Leakage L=0.6mH, primary R=0.43Ω±5% @ 25℃, primary L=7.5mH ~ 8.5mH @ 5.0A  
Load resistor for pickup=10Ω±20%  
RL  
Input buffer resistors provide additional transient protection to the already clamped  
inputs=20k±20%  
RA, RB  
C1, C2  
For reduction of high frequency noise and spark transients induced in pick-up and leads;  
optional and non-critical  
RBAT  
CFilter  
CDWELL  
RGAIN  
RD2  
Provides load dump protection (but small enough to allow operation at VBAT =4.0V) =300Ω±20%  
Transient filter on VCC, non-critical  
Stores reference, circuit designed for 0.1µF±20%  
RGAIN/RD1 sets the DC gain of the current regulator =5.0k±20%  
RD2/RD1 set up voltage feedback from RS  
RS  
Sense resistor (PDAG in thick film techniques) =0.075Ω±30%  
Low enough to supply drive to the output Darlington, high enough to keep VCE(SAT) of the IC  
below Darlington turn-on during load dump = 100Ω±20%, 5.0W  
Starting with 35Ω assures less than 5.5A, increasing as required to set 5.5A  
RD1=(IO(PEAK) RS – VREF)/((VREF/RD2)-(1.4/RGAIN))-(≈100Ω)  
RDRIVE  
RD1  
UNISONIC TECHNOLOGIES CO., LTD  
3 of 5  
QW-R121-006,A  
www.unisonic.com.tw  
93334  
LINEAR INTEGRATED CIRCUIT  
ꢀ
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
SYMBOL  
VCC  
RATING  
24  
UNIT  
V
Power Supply Voltage-Steady State Transient 300ms or less  
Output Sink Current-Steady State Transient 300ms of less  
90  
300  
mA  
A
IOUT(SINK)  
PD  
1.0  
Power Dissipation  
1.05  
W
Derate above 25°C  
Junction Temperature  
Operating Temperature  
Storage Temperature  
12  
mW/°C  
°C  
°C  
TJ  
+125  
-20~+85  
-40 ~ 150  
TOPR  
TSTG  
°C  
Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.  
Absolute maximum ratings are stress ratings only and functional device operation is not implied.  
2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range  
and assured by design from -20℃~+85℃.  
ꢀ
ELECTRICAL CHARACTERISTICS (VCC = 13.2VDC, circuit of Figure 3, unless otherwise specified)  
PARAMETER  
SYMBOL TEST CONDITIONS  
MIN  
TYP  
MAX UNIT  
VBAT =4.0VDC  
3.5  
VBAT =8.0VDC  
7.2  
Internal Supply Voltage, Pin 6  
VCC  
VDC  
VBAT =12.0VDC  
10.4  
VBAT =14.0VDC  
11.8  
VBAT =4.0VDC  
VBAT =6.0VDC  
VBAT =8.0VDC  
3.0  
4.0  
4.6  
5.1  
5.1  
5.1  
4.2  
3.4  
2.7  
3.4  
5.2  
5.3  
5.4  
5.5  
5.5  
5.4  
4.4  
3.4  
7.5  
5.0  
4.0  
3.0  
2.3  
30  
Ignition Coil Current Peak,  
Cranking RPM 2.0Hz ~ 27Hz  
IPEAK  
APEAK  
VBAT =10.0VDC  
F=33Hz  
F=133Hz  
F=200Hz  
F=267Hz  
F=333Hz  
F=33Hz  
Ignition Coil Current Peak, Normal RPM  
Ignition Coil On-Time, Normal RPM Range  
IPEAK  
APEAK  
14.0  
5.9  
F=133Hz  
F=200Hz  
F=267Hz  
F=333Hz  
TON  
ms  
4.6  
3.6  
2.8  
35  
Shutdown Voltage  
VBAT  
VTHR  
VHYS  
VTHR  
25  
75  
VDC  
mVDC  
mVDC  
VDC  
Turn-on  
Turn-off  
360  
90  
Input Threshold (Static Test)  
Input Threshold Hysteresis  
Input Threshold (Active Operation)  
Turn-on  
Turn-off  
1.8  
1.5  
Total Circuit Lag from ts (Figure 1) until Ignition  
Coil Current Falls to 10%  
60  
120  
µs  
µs  
Ignition Coil Current Fall Time (90% ~ 10%)  
4.0  
120  
280  
540  
160  
VBAT =10VDC  
VBAT =30VDC  
VBAT =50VDC  
Saturation Voltage IC Output (Pin 7)  
(RDRIVE = 100Ω)  
VCE(SAT)  
VREF  
mVDC  
Current Limit Reference, Pin 8  
120  
190 mVDC  
UNISONIC TECHNOLOGIES CO., LTD  
4 of 5  
QW-R121-006,A  
www.unisonic.com.tw  
93334  
LINEAR INTEGRATED CIRCUIT  
ꢀ
LGNITION COIL CURRENT VERSUS FREQUENCY / PERIOD  
6.0  
5.5  
5.0  
V
BAT  
=13.2V  
DC  
V
-1.5V  
8.0mH  
BAT  
Slope=  
4.0  
3.0  
2.0  
1.0  
333  
200  
5
133  
100  
10  
70  
50  
20  
33  
15  
25  
30 ms  
Frequency, f (Hz)  
UTC assumes no responsibility for equipment failures that result from using products at values that  
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or  
other parameters) listed in products specifications of any and all UTC products described or contained  
herein. UTC products are not designed for use in life support appliances, devices or systems where  
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in  
whole or in part is prohibited without the prior written consent of the copyright owner. The information  
presented in this document does not form part of any quotation or contract, is believed to be accurate  
and reliable and may be changed without notice.  
UNISONIC TECHNOLOGIES CO., LTD  
5 of 5  
QW-R121-006,A  
www.unisonic.com.tw  

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