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PDF VND5050AK-E Data sheet ( Hoja de datos )
| Número de pieza | VND5050AK-E | |
| Descripción | Double channel high side driver | |
| Fabricantes | ST Microelectronics | |
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VND5050AJ-E
VND5050AK-E
Double channel high side driver with analog current sense
for automotive applications
Features
General
Max supply voltage
Operating voltage range
Max On-State resistance (per ch.)
Current limitation (typ)
Off state supply current
VCC
VCC
RON
ILIMH
IS
41V
4.5 to 36V
50 mΩ
18 A
2 µA(*)
(*) Typical value with all loads connected
Application
■ All types of resistive, inductive and capacitive loads
■ Suitable as LED driver
Main
■ Inrush current active management by power
limitation
■ Very low stand-by current
■ 3.0V 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 shut-down
■ Overvoltage clamp
■ Load current limitation
Order codes
PowerSSO-12 PowerSSO-24
■ Self limiting of fast thermal transients
■ Protection against loss of ground and loss of
VCC
■ Thermal shut down
■ Reverse battery protection (see Figure 24)
■ Electrostatic discharge protection
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 shut-down intervention.
Thermal shut-down with automatic restart allows
the device to recover normal operation as soon as
fault condition disappears..
Package
PowerSSO-12
PowerSSO-24
Part number (Tube)
VND5050AJ-E
VND5050AK-E
Part number (Tape & Reel)
VND5050AJTR-E
VND5050AKTR-E
April 2006
Rev 2
1/26
www.st.com
26
1 page  
VND5050AJ-E / VND5050AK-E
2.2 Thermal Data
Table 3. Thermal Data
Symbol
Parameter
Rthj-case
Rthj-amb
Thermal resistance junction-case (Max.)
(with one channel ON)
Thermal resistance junction-ambient (Max.)
Electrical specifications
Value
PowerSSO-12
PowerSSO-24
2.7 2.7
See Figure 26
See Figure 30
Unit
°C/W
°C/W
2.3 Electrical Characteristics
8V<VCC<36V; -40°C<Tj<150°C, unless otherwise specified.
Table 4. Power section
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VCC
VUSD
VUSDhyst
Operating supply voltage
Undervoltage shutdown
Undervoltage shut-down
hysteresis
4.5 13 36
3.5 4.5
0.5
V
V
V
RON
On state resistance(2)
Vclamp Clamp Voltage
IS Supply current
IL(off)
Off state output current(2)
VF Output - VCC diode voltage(2)
(1) PowerMOS leakage included.
(2) For each channel
IOUT=2A; Tj=25°C
IOUT=2A; Tj=150°C
IOUT=2A; VCC=5V; Tj=25°C
IS=20mA
Off State; VCC=13V; Tj=25°C;
VIN=VOUT=VSENSE=VCSD=0V
On State; VCC=13V; VIN=5V; IOUT=0A
VIN=VOUT=0V; VCC=13V; Tj=25°C
VIN=VOUT=0V; VCC=13V; Tj=125°C
-IOUT=4A; Tj=150°C
41
0
0
50
100
65
46 52
2(1)
3
0.01
5(1)
6
3
5
0.7
mΩ
mΩ
mΩ
V
µA
mA
µA
V
Table 5. Switching (VCC=13V)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
td(on)
Turn-on delay time
td(off)
Turn-off delay time
dVOUT/dt(on) Turn-on voltage slope
dVOUT/dt(off) Turn-off voltage slope
WON
Switching energy losses
during twon
WOFF
Switching energy losses
during twoff
RL=6.5Ω (see Figure 6)
RL=6.5Ω (see Figure 6)
RL=6.5Ω
RL=6.5Ω
RL=6.5Ω (see Figure 6)
RL=6.5Ω (see Figure 6)
25
35
see Figure 19
see Figure 20
0.24
0.2
µs
µs
V/µs
V/µs
mJ
mJ
5/26
5 Page 
VND5050AJ-E / VND5050AK-E
Figure 8. Waveforms
INPUT
CS_DIS
LOAD CURRENT
SENSE CURRENT
VCC
INPUT
CS_DIS
LOAD CURRENT
SENSE CURRENT
VUSD
NORMAL OPERATION
UNDERVOLTAGE
VUSDhyst
Electrical specifications
INPUT
CS_DIS
LOAD VOLTAGE
LOAD CURRENT
SENSE CURRENT
SHORT TO VCC
<Nominal
<Nominal
Tj
INPUT
CS_DIS
TR TTSD
TRS
LOAD CURRENT
SENSE CURRENT
OVERLOAD OPERATION
current power
limitation limitation
thermal cycling
SHORTED LOAD
ILIMH
ILIML
VSENSEH
NORMAL LOAD
11/26
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| PDF Descargar | [ Datasheet VND5050AK-E.PDF ] | |
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