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VB025BSP 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 VB025BSP은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 VB025BSP 기능
기능 HIGH VOLTAGE IGNITION COIL DRIVER POWER IC
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


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VB025BSP 데이터시트, 핀배열, 회로
® VB025BSP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER IC
TYPE
VB025BSP
Vcl
380 V
Icl Id
9 A 100 mA
s PRIMARY COIL VOLTAGE INTERNALLY SET
s COIL CURRENT LIMIT INTERNALLY SET
s LOGIC LEVEL COMPATIBLE INPUT
s DRIVING CURRENT QUASI
PROPORTIONAL TO COLLECTOR
CURRENT
s SINGLE FLAG-ON COIL CURRENT
DESCRIPTION
The VB025BSP is a high voltage power integrated
circuit made using STMicroelectronics VIPower
Technology, with vertical current flow power
darlington and logic level compatible driving circuit.
Built-in protection circuits for coil current limiting
and collector voltage clamping allows the
VB025BSP to be used as a smart, high voltage,
high current interface in advanced electronic
ignition systems.
BLOCK DIAGRAM
10
1
PowerSO-10
March 1999
1/7




VB025BSP pdf, 반도체, 판매, 대치품
VB025BSP
ELECTRICAL CHARACTERISTICS (continued)
Sy mb o l
Parameter
Test Conditions
Min. Typ.
Vin(h ys ) Input Threshold
Hysteresis
0.4
IinH High Level Input Current Vin = 4 V
IinL Low Level Input Current Vin = 0.8 V
Iin pd Input Act ive Pull-Down
Vin = 4 V
10
VdiagH High Level Flag Output
Vo lt a ge
REXT = 22 KCEXT = 1 nF
(see note 3)
V CC -1
VdiagL
Id iagTH
Low Level Flag Output
Vo lt a ge
Coil Current Level
T hr es h o ld
REXT = 22 K
(see note 3)
Tj = 25oC
CEXT = 1 nF
(see figure 1)
4.25
IdiagTD Coil Current Level
Threshold Drift
(see figure 3)
Idiag High Level Flag Output
Current
IC > IdiagTH
Vdiag = 3 V
0.5
Idiag(leak) Leakage Current On Flag Vin = LOW
Ou t p ut
VCC = 5.5V
VF Antiparallel Diode
Forward Voltage
Ic = -1 A
Es/b Single Pulse Avalanche L = 6 mH IC = 8 A
En e rgy
(see figure 4)
180
tpHL Turn-on Delay Time of
Coil Current
Rc = 0.5 Lc = 3.75 mH
(see figure 5)
tpLH Turn-off Delay Time of
Coil Current
Rc = 0.5 Lc = 3.75 mH Ic =6.5A
(see figure 5)
Note 1: Parametric degradation are allowed with 5.3 < Vb < 10V and Vb > 24V.
Note 2: The primary coil current value Icl must be measured 1ms after desaturation of the power stage.
Note 3: No Internal Pull-Down
(*) Internally limited
4.5
TBD
TBD
TBD
Max.
100
-100
100
VCC
0.5
4.75
10
2
Un it
V
µA
µA
µA
V
V
A
mA
µA
V
mJ
µs
µs
PRINCIPLE OF OPERATION
The VB025BSP is mainly intended as a high
voltage power switch device driven by a logic
level input and interfaces directly to a high energy
electronic ignition coil.
The input Vin of the VB025BSP is fed from a low
power signal generated by an external controller
that determines both dwell time and ignition point.
During Vin high (4V) the VB025BSP increases
current in the coil to the desired, internally set
current level.
After reaching this level, the coil current remains
constant until the ignition point, that corresponds
to the transition of Vin from high to low (typ. 1.9V
threshold).
During the coil current switch-off, the primary
4/7
voltage HVc is clamped at an internally set value
Vcl, typically 380V.
The transition from saturation to desaturation, coil
current limiting phase, must have the ability to
accomodate an overvoltage. A maximum
overshoot of 20V is allowed.
FEEDBACK
When the collector current exceeds 4.5A, the
feedback signal is turned high and it remains so,
until the input voltage is turned-off.
OVERVOLTAGE
The VB025BSP can withstand the following
transients of the battery line:
-100V/2msec (Ri = 10 )
+100V/0.2msec (Ri = 10 )
+50V/400msec (Ri = 4.2 , with VIN = 3 V)

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VB025BSP 전자부품, 판매, 대치품
VB025BSP
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 result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification 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
© 1999 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
http://www.st.com
.
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부품번호상세설명 및 기능제조사
VB025BSP

HIGH VOLTAGE IGNITION COIL DRIVER POWER IC

STMicroelectronics
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