VN5012AK-E
Single channel high side driver with analog current sense
for automotive applications
Datasheet
−
production data
Features
Max supply voltage
Operating voltage range
Max on-state resistance (per ch.)
Current limitation (typ)
Off-state supply current (typ)
1.
■
V
CC
V
CC
R
ON
I
LIMH
I
S
41 V
4.5 to 36 V
12 mΩ
65 A
2 µA
(1)
PowerSSO-24
– Reverse battery protection
– Electrostatic discharge protection
Typical value with all loads connected
General features
– Inrush current active management by
power limitation
– Very low stand-by current
– 3.0 V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
european directive
Diagnostic functions
– Proportional load current sense
– High current sense precision for wide range
currents
– Current sense disable
– Thermal shutdown indication
– Very low current sense leakage
Protections
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of V
CC
– Thermal shutdown
Device summary
Application
■
All types of resistive, inductive and capacitive
loads
Description
The VN5012AK-E is a monolithic device made
using STMicroelectronics VIPower
®
M0-5
technology. It is intended for driving resistive or
inductive loads with one side connected to
ground. Active V
CC
pin voltage clamp protects the
device against low energy spikes (see ISO7637
transient compatibility table). This device
integrates an analog current sense which delivers
a current proportional to the load current
(according to a known ratio) when CS_DIS is
driven low or left open. When CS_DIS is driven
high, the CURRENT SENSE pin is in a high
impedance condition. Output current limitation
protects the device in overload condition. In case
of long overload duration, the device limits the
dissipated power to safe level up to thermal
shutdown intervention. Thermal shutdown with
automatic restart allows the device to recover
normal operation as soon as fault condition
disappears.
■
■
Table 1.
Order codes
Package
Tube
PowerSSO-24
VN5012AK-E
Tape and reel
VN5012AKTR-E
September 2013
This is information on a product in full production.
Doc ID 13240 Rev 9
1/30
www.st.com
1
Contents
VN5012AK-E
Contents
1
2
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
2.3
2.4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1
GND Protection network against reverse battery . . . . . . . . . . . . . . . . . . . 20
3.1.1
3.1.2
Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 20
Solution 2: a diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . 21
3.2
3.3
3.4
Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 22
4
Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1
PowerSSO-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5
Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1
5.2
5.3
ECOPACK
®
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PowerSSO-24 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . 26
PowerSSO-24 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2/30
Doc ID 13240 Rev 9
VN5012AK-E
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Switching (VCC = 13 V; Tj = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current sense (8 V < V
CC
< 16 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical transient requirements (part 1/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical transient requirements (part 2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical transient requirements (part 3/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PowerSSO-24 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Doc ID 13240 Rev 9
3/30
List of figures
VN5012AK-E
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Current sense delay characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Delay response time between rising edge of output current and rising edge of current
sense (CS enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
I
OUT
/I
SENSE
vs I
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Off-state output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
On-state resistance vs T
case
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
On-state resistance vs V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
I
LIMH
vs T
case
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CS_DIS high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CS_DIS low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PowerSSO-24 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 23
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 24
Thermal fitting model of a single channel HSD in PowerSSO-24 . . . . . . . . . . . . . . . . . . . 24
PowerSSO-24 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PowerSSO-24 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PowerSSO-24 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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Doc ID 13240 Rev 9
VN5012AK-E
Block diagram and pin description
1
Block diagram and pin description
Figure 1.
Block diagram
V
CC
V
CC
CLAMP
UNDERVOLTAGE
PwCLAMP
DRIVER
OUTPUT
I
LIM
V
DSLIM
GND
LOGIC
INPUT
Pwr
LIM
OVERTEMP.
I
OUT
K
CURRENT
SENSE
CS_DIS
Table 2.
Name
V
CC
OUTPUT
GND
INPUT
CURRENT
SENSE
1,2
CS_DIS
Pin function
Function
Battery connection.
Power output.
Ground connection. Must be reverse battery protected by an external diode/resistor
network.
Voltage controlled input pin with hysteresis, CMOS compatible. Controls output
switch state.
Analog current sense pin, delivers a current proportional to the load current.
Active high CMOS compatible pin, to disable the current sense pin.
Doc ID 13240 Rev 9
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