ST VB525SP-E User Manual
High voltage ignition coil driver power integrated circuit
Features
Typ e V
VB525SP-E 380 V 10 A 150 mA
cl
I
cl
I
VB525SP-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 VB525SP-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 VB525SP-E VB525SPTR-E
September 2010 Doc ID 18022 Rev 1 1/19
Order codes
Tube Tape and real
www.st.com
1
Contents VB525SP-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 18022 Rev 1
VB525SP-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 18022 Rev 1 3/19
List of figures VB525SP-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 18022 Rev 1
VB525SP-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 18022 Rev 1 5/19
Block diagram and pin description VB525SP-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 18022 Rev 1
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