VND5050AJ-E
VND5050AK-E
Double channel high side driver with analog current sense
for automotive applications
Features
Max transient supply voltage
VCC
41 V
Operating voltage range
VCC
4.5 to 36 V
Max on-state resistance (per ch.)
RON
50 mΩ
Current limitation (typ)
ILIMH
18 A
Off-state supply current
IS
2 µA(1)
1. Typical value with all loads connected
■ Main
– Inrush current active management by
power limitation
– Very low standby 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 VCC
– Thermal shutdown
– Reverse battery protection (see Application
schematic on page 21)
– Electrostatic discharge protection
PowerSSO-12
PowerSSO-24
Applications
■
All types of resistive, inductive and capacitive
loads
■
Suitable as LED driver
Description
The VND5050AJ-E, VND5050AK-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 VCC 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.
Device summary
Order codes
Package
Tube
Tape and reel
PowerSSO-12 VND5050AJ-E VND5050AJTR-E
PowerSSO-24 VND5050AK-E VND5050AKTR-E
September 2013
Doc ID 12272 Rev 10
1/37
www.st.com
1
Contents
VND5050AJ-E / VND5050AK-E
Contents
1
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
2.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1
4
5
6
2/37
GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 21
3.1.1
Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 21
3.1.2
Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 22
3.2
Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3
Microcontroller I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4
Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 23
Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1
PowerSSO-12™ thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2
PowerSSO-24™ thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1
ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2
PowerSSO-12™ package information . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.3
PowerSSO-24™ package information . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.4
PowerSSO-12™ packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.5
PowerSSO-24™ packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Doc ID 12272 Rev 10
VND5050AJ-E / VND5050AK-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.
Table 18.
Table 19.
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 = 13V; Tj = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current sense (8V
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