ETC VB927T

VB927T
®
HIGH VOLTAGE IGNITION COIL DRIVER
POWER I.C.
TYPE
VB927T
Vcl
380V
Icl
9.5A
Vcg(sat)
2.5V
NO EXTERNAL COMPONENT REQUIRED
■ COIL CURRENT LIMIT INTERNALLY SET
■ INTEGRATED HIGH VOLTAGE CLAMP
■ HIGH RUGGEDNESS
■ OVERTEMPERATURE PROTECTION
■
3
2
1
TO-247
DESCRIPTION
The VB927T is a monolithic high voltage integrated circuit
made by using the STMicroelectronics VIPower™
technology, which combines vertical current flow power
trilinton with a coil current and a collector voltage
clamping. The device is particularly suitable for
application in high performance electronic car ignition,
where coil current limitation and voltage clamping are
required.
PACKAGE
TO-247
ORDER CODES
TUBE
VB927T
-
T&R
BLOCK DIAGRAM
HVC
VIN
INPUT
HYSTERESIS
DRIVER
CURRENT
LIMITER
VOLTAGE
REFERENCE
RSENSE
OVERTEMP.
PROTECTION
GND
January 2003
1/5
VB927T
ABSOLUTE MAXIMUM RATING
Symbol
HVc
VIN
IC
IIN
Ptot
Tstg
Tj
Parameter
Collector Voltage
Maximum Input Voltage
Collector Current
Input Current
Total Dissipation At Tc=25°c
Storage Temperature
Junction Operating Temperature
Value
Internally limited
15
Internally limited
Internally limited
150
-40 to 150
-40 to 150
CONNECTION DIAGRAM
3
GND
2
HV C
1
VIN
TO-247
2/5
1
Unit
V
V
A
mA
W
°C
°C
VB927T
THERMAL DATA
Symbol
Rthj-case
Rthj-amb
Parameter
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Value
0.6
30
(MAX)
(MAX)
Unit
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (VCC=14V; -40V < Tj < 125ºC unless otherwise specified)
Symbol
Ileak
Vcl (*)
Parameter
Collector Cut-off Current
Clamping Voltage
Vcg(sat)
Power Stage Saturation
Voltage
Icl (*)
IIN
Vf (**)
VINH
VINL
VIN(hyst)
td(off)
Tj
Coil Current Limit
Input Current
Diode Forward Voltage
Input Voltage (ON)
Input Voltage (OFF)
Input Voltage (Hyst.)
Turn-off Time
Junction Temperature Limit
Test Conditions
VIN=0V; HVC=250V
-40°C < Tj < 125°C
IC=5A; IIN=10mA; 25°C ≤ Tj ≤ 125°C
IC=6A; IIN=10mA; -40°C ≤ Tj ≤ 25°C
VIN=5V; -40°C ≤ Tj ≤ 125°C
VIN=5V; IC=5A
VIN=5V; IC=5A; Tj=25°C
If=10A; Tj=25°C
On state input threshold
Off state input threshold
IC=5A
See note 1
Min
Typ
380
420
8.5
3
1.2
3.2
3
0.2
2.2
30
150
Max
250
490
2.5
Unit
µA
V
V
3
9.5
10
V
A
mA
10
3.2
3.6
3.4
0.6
mA
V
V
V
V
µs
°C
(*) Coil data: primary resistance RC=0.4 - 0.8Ω; primary inductance LC= 6 - 8 mH
(**) Pulsed: Pulse duration =300µs, duty cycle 1.5%
Note 1: Tjmin=150°C means that the behavior of the device will not be affected for junction temperature lower than 150°C. For higher
temperature, the thermal protection circuit will begin its action reducing the Icl limit according with the power dissipation. Chip temperature is
a function of the Rth of the whole system in which the device will be operating.
3/5
VB927T
TO-247 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
MAX.
A
4.85
5.15
A1
2.20
2.60
b
1.0
1.40
b1
2.0
2.40
b2
3.0
3.40
c
0.40
0.80
D
19.85
20.15
E
15.45
e
L
14.20
L1
3.70
L2
∅P
∅R
S
Package Weight
15.75
5.45
14.80
4.30
18.50
3.55
3.65
4.50
5.50
5.50
Gr. 4.43
P025P
4/5
VB927T
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a trademark of STMicroelectronics
 2003 STMicroelectronics - Printed in ITALY- All Rights Reserved.
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
5/5