High voltage ignition coil driver power integrated circuit
Features
Typ e V
VB526SP-E 360 V 10 A 150 mA
cl
I
cl
I
VB526SP-E
CC
10
■ ECOPACK
■ Primary coil voltage internally set
■ Coil current limit internally set
■ Logic level compatible input
■ Driving current quasi proportional to collector
®
: lead free and RoHS compliant
current
■ Single flag on coil current
■ Low voltage clamp thermal shutdown
1
PowerSO-10
Description
The VB526SP-E is a high voltage power
integrated circuit made using the
STMicroelectronics™ VIPower™ M1-3
technology, with Darlington and logic level
compatible vertical current flow power driving
circuit.
The enable pin allows to externally block the
switch when the input is on. A built-in protection
circuit for coil current limiting and collector voltage
clamping allows the device to be used as a smart,
high voltage, high current interface in advanced
electronic ignition systems. If the input signal from
the microcontroller happens to remain high, the
device protects itself against overheating by
forcing collector current to smoothly decrease
(low voltage clamp feature) to avoid undesired
spark.
Table 1. Device summary
Package
PowerSO-10 VB526SP-E VB526SPTR-E
September 2010 Doc ID 18029 Rev 1 1/19
Order codes
Tube Tape and real
www.st.com
1
Contents VB526SP-E
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19 Doc ID 18029 Rev 1
VB526SP-E List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 6. PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Doc ID 18029 Rev 1 3/19
List of figures VB526SP-E
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Switching time for inductive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Flag current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. Single pulse avalanche energy capability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6. Self clamped inductive switching current vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. Low voltage clamp feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9. PowerSO-10 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 10. PowerSO-10 suggested pad layout and tube shipment (no suffix). . . . . . . . . . . . . . . . . . . 17
Figure 11. PowerSO-10 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4/19 Doc ID 18029 Rev 1
VB526SP-E Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
V
CC
V
IN
DIAGNOSTIC
OUTPUT
Table 2. Pin function
V
CC
V
F1
V
R
E
-
REFERENCE
DRIVER
QUASI PROP.
BASE CURRENT
LIMITER
V
LIM
V
TH
LGND
PROTECTION
Pin number Name Function
BD
THERMAL
GND
R
SENSE
SN
HV
C
1, 5 LGND Signal ground
2, 3, 4 GND Emitter power ground
6EEnable
7V
CC
Logic supply voltage
8 BD Base darlington
9 INPUT Logic input channel (internal pull down)
10 FLAG Diagnostic output signal (open emitter)
Ta b H V
C
1. When grounded the input is enabled
Primary coil output driver (open collector)
(1)
Doc ID 18029 Rev 1 5/19
Block diagram and pin description VB526SP-E
Figure 2. Connection diagram (top view)
HV
6
7
8
9
10
TAB
C
E
V
CC
BD
INPUT
FLAG
Note:
Pin 1 and pin 5 must be connected to pin2, pin 3 and pin 4
5
4
3
2
1
LGND
GND
GND
GND
LGND
6/19 Doc ID 18029 Rev 1
VB526SP-E Electrical specifications
2 Electrical specifications
2.1 Absolute maximum rating
Stressing the device above the ratings listed in the “Absolute maximum ratings” tables may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to the conditions in this section for extended
periods may affect device reliability. Refer also to the STMicroelectronics SURE Program
and other relevant quality documents.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
HV
I
C
I
C(gnd)
V
CC
I
s
I
s(gnd)
V
IN
I
IN
f
IN
V
OUT(flag)
I
OUT(flag)
P
max
E
s/b
V
ESD
V
ESD
V
ESD
I
BD
V
BD
T
T
stg
V
I
E
j
E
Collector voltage (internally limited) -0.3 to V
c
clamp
Collector current (internally limited) 10 A
DC current on emitter power ±10.5 A
Driving stage supply voltage -0.3 to 7 V
Driving circuitry supply current ±200 mA
DC current on ground pin ±1 A
Input voltage -0.3 to VCC + 0.3 V
Maximum input current 100 mA
Logic input frequency in operative mode DC to 150 Hz
Output voltage primary threshold current level -0.3 to VCC + 0.3 V
Flag output current 100 mA
Power Dissipation (Tc= 25 °C) 125 W
Self clamped energy during output power clamping
(see Figure 5)
275 mJ
ESD voltage (HVc pin) ±4 KV
ESD voltage (enable pin) +1.5; -2 KV
ESD voltage (other pins) ±2 KV
Input darlington base current 150 mA
Input darlington base voltage Internally limited V
Operating junction temperature -40 to 150 °C
Storage temperature range -55 to 150 °C
Maximum enable voltage -0.3 to 5.5 V
Maximum enable current ±150 µA
V
Doc ID 18029 Rev 1 7/19
Electrical specifications VB526SP-E
2.2 Thermal data
Table 4. Thermal data
Symbol Parameter Value Unit
R
thj-case
R
thj-amb
Thermal resistance junction-case (max) 1 °C/W
Thermal resistance junction-ambient (max) 51 °C/W
8/19 Doc ID 18029 Rev 1
VB526SP-E Electrical characteristics
3 Electrical characteristics
5.3 V < V
unless otherwise specified
Table 5. Electrical characteristics
< 24 V; VCC= 5 V ±10 %; -40 °C < Tj < 125 °C; R
bat
(a)
.
=580mΩ; L
coil
=3.75mH
coil
Symbol Parameter Test conditions Min Typ Max Unit
V
High voltage clamp I
cl
Low voltage clamp I
V
lcl
V
ce(sat)
I
CC(stdby)
I
I
CC(peak)
V
I
c(off)
T
lc_ctr
Power stage
saturation voltage
Standby supply
current
DC logic current
CC
Peak DC logic current
during on phase
DC logic voltage 4.5 5.5 V
CC
Coil current limit -40 °C < Tj< 125 °C
I
cl
Output off-state
current
Thermal temperature
output current control
= 6.5 A 320 360 420 V
coil
= 6.5 A; Tj=T
coil
=6A; VIN=4V 1.5 2 V
I
C
sd
30 40 50 V
IN = Off 11 mA
=16V; IC= 6.5 A; f = 100 Hz;
V
b
Load = Coil; V
I
= 6.5 A 100 150 mA
C
IN = Off; V
=25°C
T
j
=5.5V
CC
(1)
=24V; VCC=5V;
HVC
911A
OUT = On 150
40 mA
5mA
Internally
limited
°C
INH
INL
INH
INL
High level input
voltage
=4.5V 4 V
V
CC
Low level input voltage VCC=5.5V -0.3 0.8 V
Input threshold
hysteresis
High level input
current
= 4 V 100 µA
V
IN
Low level input current VIN=0.8V 0 30 µA
Input active pull down VIN= 4 V 10 100 µA
High level flag output
voltage
Low level flag output
voltage
Coil current level
threshold
R
=22KΩ; C
EXT
R
EXT
=22KΩ; C
EXT
EXT
Tj= 25 °C 6.15 6.5 6.85 A
=1nF
=1nF
(2)
(2)
V
V
V
IN(hyst)
I
I
I
INpd
V
diagH
V
diagL
I
diagTH
a. Parametric degradation are allowed with 5.3 V< Vb< 10 V and Vb>24V.
CC
0.4 V
VCC
- 1
V
CC
0.5 V
V
V
Doc ID 18029 Rev 1 9/19
Electrical characteristics VB526SP-E
Table 5. Electrical characteristics (continued)
Symbol Parameter Test conditions Min Typ Max Unit
I
diagTD
I
diag
I
diag(leak)
V
F
E
s/b
t
ON
t
OFF
T
sd
V
EH
V
EL
I
EH
Coil current level
threshold drift
High level flag output
current
Leakage current on
flag output
Anti parallel diode
forward voltage
Single pulse
avalanche energy
Turn-on time
Turn-off time
Thermal shutdown
intervention
High level enable
voltage
Low level enable
voltage
High level sinked
enable current
(See Figure 4)
IC > I
V
IN
=-1A 2 V
I
C
L=6mH; I
; V
diagTH
=3V 0.5 mA
diag
=Low; VCC=5.5V 10 µA
=8A (see Figure 5)180 mJ
C
Rc=0.5Ω; Lc=3.75mH;
Tj=25°C; V
bat
=13V
15µs
(see Figure 3)
Rc=0.5Ω; Lc=3.75mH;
IC= 6.5 A; Tj=25°C; V
bat
=13V
15 25 µs
(see Figure 3)
150 °C
V
IN=VINH
V
OUT
V
E
; OUT = Off
free to follow V
= 5 V 500 µA
(3)
IN
2V
0.40 V
Low level sinked
I
EL
enable current
V
BD(off)
V
BD(on)
1. The primary coil current value Icl must be measured ms after desaturation of the power stage.
2. No internal pull-down.
3. If ENABLE pin is floating OUT = Off for every input status.
Base darlington
voltage off
Base darlington
voltage on
< 0.4 V -200 µA
V
E
V
E=VEH
V
IN=VINH
; VE=VEL; IC= 6.5 A 1.8 V
10/19 Doc ID 18029 Rev 1
1V
VB526SP-E Electrical characteristics
Figure 3. Switching time for inductive load
V
bat
V
V
CC
100V
V
bat
3V
gen
R
gen
V
gen
C
D.U.T
E
t
t
OFF
t
t
ON
Doc ID 18029 Rev 1 11/19
Electrical characteristics VB526SP-E
3.1 Electrical characteristics curves
Figure 4. Flag current vs temperature Figure 5. Single pulse avalanche
700
650
600
550
500
450
400
350
300
E (mJ)
250
200
150
100
50
energy capability
Tc=25º
Tc=150º
0
0 102030405060708090100110
L (mH)
Figure 6. Self clamped inductive
10
8
6
4
Inducti ve Current (A)
2
0
200 300 400 500 600 700 800 900 1000
switching current vs time
T=25º
T=150º
Time in Clamp (µsec)
Figure 7. Low voltage clamp feature
12/19 Doc ID 18029 Rev 1
VB526SP-E Application schematic
4 Application schematic
Figure 8. Application diagram
+5V
V
1μF
100nF
bat
μP
1nF
Note:
ENABLE pin can be alternatively connected to LGND.
4.1 Principle of operation
The VB526SP-E 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 V
controller that determines both dwell time and ignition point. During V
VB526SP-E 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 V
During the coil current switch-off, the primary voltage HV
value V
phase, must have the ability to accommodate an overvoltage.
of the VB526SP-E is fed from a low power signal generated by an external
IN
, typically 380 V. The transition from saturation to desaturation, coil current limiting
cl
1K
1K
1K
18K
from high to low (typ. 1.9 V threshold).
IN
V
IN
E
FLAG
V
CC
LGND
BD
HV
C
GND
is clamped at an internally set
C
high (≥ 4V) the
IN
A maximum overshoot of 20 V is allowed.
4.2 Feedback
When the collector current exceeds 6.5 A, the feedback signal is turned high and it remains
so, until the input voltage is turned-off.
Doc ID 18029 Rev 1 13/19
Application schematic VB526SP-E
4.3 Overvoltage
The VB526SP-E can withstand the following transients of the battery line:
● -100 V / 2 msec (R
● +100 V / 0.2 msec (R
● +50 V / 400 msec (R
=10Ω)
i
=10Ω)
i
=4.2Ω, with VIN=3V)
i
14/19 Doc ID 18029 Rev 1
VB526SP-E Package information
5 Package information
5.1 ECOPACK® packages
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com
ECOPACK
®
is an ST trademark.
5.2 PowerSO-10 mechanical data
Figure 9. PowerSO-10 package dimensions
10
HE
h
A
F
A1
1
eB
0.25
D
= =
D1
= =
E2
DETAIL "A"
B
0.10 A
SEATING
PLANE
A
C
.
B
E4
SEATING
PLANE
A1
DETAIL "A"
L
α
P095A
Doc ID 18029 Rev 1 15/19
Package information VB526SP-E
Table 6. PowerSO-10 mechanical data
Millimeters
Symbol
Min. Typ. Max.
A 3.35 3.65
(1)
A
A1 0.00 0.10
B 0.40 0.60
(1)
B
C 0.35 0.55
(1)
0.23 0.32
C
D 9.40 9.60
(2)
D1
(2)
E
3.4 3.6
0.37 0.53
7.40 7.60
9.30 9.50
E2 7.20 7.60
E2
(1)
7.30 7.50
E4 5.90 6.10
E4
(1)
5.90 6.30
e1.27
F 1.25 1.35
(1)
F
1.20 1.40
H 13.80 14.40
(1)
H
13.85 14.35
h0.50
L 1.20 1.80
(1)
L
0.80 1.10
α 0º 8º
(1)
α
1. Muar only POA P013P.
2. Resin protrusion not included (max value: 0.20 mm per side).
2º 8º
16/19 Doc ID 18029 Rev 1
VB526SP-E Package information
5.3 Packing information
Figure 10. PowerSO-10 suggested pad layout and tube shipment (no suffix)
14.6 - 14.9
10.8 - 11
6.30
1
2
3
9.5
4
5
0.67 - 0.73
10
0.54 - 0.6
9
8
7
1.27
6
C
A
All dimensions are in mm.
B
A
Base Q.ty Bulk Q.ty Tube length (± 0.5) A B
Casablanca 50 1000 532 10.4 16.4 0.8
Muar 50 1000 532 4.9 17.2 0.8
Figure 11. PowerSO-10 tape and reel shipment (suffix “TR”)
REEL DIMENSIONS
Base Q.ty 600
Bulk Q.ty 600
A (max) 330
B (min) 1.5
C (± 0.2) 13
F 20.2
G (+ 2 / -0) 24.4
N (min) 60
T (max) 30.4
All dimensions are in mm.
MUARCASABLANCA
C
B
C (±
0.1)
TAPE DIMENSIONS
According to Electronic Industries Association
(EIA) Standard 481 rev. A, Feb. 1986
Tape width W 24
Tape Hole Spacing P0 (± 0.1) 4
Component Spacing P 24
Hole Diameter D (± 0.1/-0) 1.5
Hole Diameter D1 (min) 1.5
Hole Position F (± 0.05) 11.5
Compartment Depth K (max) 6.5
Hole Spacing P1 (± 0.1) 2
All dimensions are in mm.
Top
cover
tape
End
500mm min
Empty components pockets
saled with cover tape.
User direction of feed
Start
No componentsNo components Components
500mm min
Doc ID 18029 Rev 1 17/19
Revision history VB526SP-E
6 Revision history
Table 7. Document revision history
Date Revision Changes
27-Sep-2010 1 Initial release.
18/19 Doc ID 18029 Rev 1
VB526SP-E
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Doc ID 18029 Rev 1 19/19
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