ST VNL5050N3-E, VNL5050S5-E User Manual
November 2009 Doc ID 15917 Rev 4 1/32
1
VNL5050N3-E
VNL5050S5-E
OMNIFET III
fully protected low-side driver
Features
■ Drain current: 19 A
■ ESD protection
■ Overvoltage clamp
■ Thermal shutdown
■ Current and power limitation
■ Very low standby current
■ Very low electromagnetic susceptibility
■ In compliance with the 2002/95/EC european
directive
■ Open drain status output
(a)
Description
The VNL5050N3-E and VNL5050S5-E are
monolithic devices made using
STMicroelectronics VIPower Technology,
intended for driving resistive or inductive loads
with one side connected to the battery. Built-in
thermal shutdown protects the chip from
overtemperature and short-circuit. Output current
limitation protects the devices in an overload
condition. In case of long duration overload, the
device limits the dissipated power to a safe level
up to thermal shutdown intervention.Thermal
shutdown, with automatic restart, allows the
device to recover normal operation as soon as a
fault condition disappears. Fast demagnetization
of inductive loads is achieved at turn-off.
Typ e V
clamp
R
DS(on)
I
D
VNL5050N3-E
41 V 50 mΩ 19 A
VNL5050S5-E
a. Valid for VNL5050S5-E only
1
2
2
3
SOT-223
SO-8
Table 1. Devices summary
Package
Order codes
Tube Tape & reel
SOT-223 VNL5050N3-E VNL5050N3TR-E
SO-8 VNL5050S5-E VNL5050S5TR-E
www.st.com
Contents VNL5050N3-E / VNL5050S5-E
2/32 Doc ID 15917 Rev 4
Contents
1 Block diagrams and pins configurations . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 MCU I/O protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Package and PC board thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.1 SOT-223 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2 SO-8 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 ECOPACK
®
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3 SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.4 SOT-223 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5 SO-8 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
VNL5050N3-E / VNL5050S5-E List of tables
Doc ID 15917 Rev 4 3/32
List of tables
Table 1. Devices summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Suggested connections for unused and n.c. pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5. Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6. Power MOS section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 7. Source drain diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 8. Input section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 9. Status pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 10. Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 11. Openload detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 12. Supply section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 13. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 14. Protection and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 15. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 16. Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 17. Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 18. SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 19. SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 20. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
List of figures VNL5050N3-E / VNL5050S5-E
4/32 Doc ID 15917 Rev 4
List of figures
Figure 1. VNL5050N3-E block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. VNL5050S5-E block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. VNL5050N3-E current and voltage conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. VNL5050S5-E current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5. Configuration diagrams (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6. Source diode forward characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. Static drain source on-resistance vs. drain current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Static drain source on-resistance vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9. Static drain source on-resistance vs. drain current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. Transfer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11. Transfer characteristics (inside view for V
IN
= 2 V to 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 12. Output characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 13. Normalized on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 14. Normalized input threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 15. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 16. VNL5050N3-E application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 17. VNL5050S5-E application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 18. Maximum demagnetization energy
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 19. SOT-223 PC board
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 20. Rthj-amb vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 18
Figure 21. SOT-223 thermal impedance junction ambient single pulse. . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 22. Thermal fitting model of a LSD in SOT-223
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 23. SO-8 PC board
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 24. Rthj-amb vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 21
Figure 25. SO-8 thermal impedance junction ambient single pulse. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 26. Thermal fitting model of a LSD in SO-8
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 27. SOT-223 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 28. SO-8 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 29. SOT-223 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 30. SO-8 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 31. SO-8 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
VNL5050N3-E / VNL5050S5-E Block diagrams and pins configurations
Doc ID 15917 Rev 4 5/32
1 Block diagrams and pins configurations
Figure 1. VNL5050N3-E block diagram
Figure 2. VNL5050S5-E block diagram
Drain
Control & DiagnosticLOGIC
DRIVER
Current
Limitation
Power
Clamp
OVERTEMPERATURE
PROTECTION
OVERLOAD PROTECTION
(ACTIVE POWER LIMITATION)
IN
GND
Drain
Control & Diagnostic
LOGIC
DRIVER
Current
Limitation
Power
Clamp
OFF State
Open load
OVERTEMPERATURE
PROTECTION
OVERLOAD PROTECTION
(ACTIVE POWER LIMITATION)
IN
ST
GND
SUPPLY
SUPPLY
Block diagrams and pins configurations VNL5050N3-E / VNL5050S5-E
6/32 Doc ID 15917 Rev 4
Figure 3. VNL5050N3-E current and voltage conventions
Figure 4. VNL5050S5-E current and voltage conventions
Table 2. Pin function
Name Function
INPUT
Voltage controlled input pin with hysteresis, CMOS compatible. Controls output
switch state
(1)
1. Internally connected to V
supply
in the VNL5050N3-E
DRAIN Power MOS drain
SOURCE Power MOS source and ground reference for the control section
SUPPLY
VOLTAGE
Supply voltage connected to the signal part (5 V)
STATUS Open drain digital diagnostic pin
(2)
2. Valid for VNL5050S5-E only.
VNL5050N3-E / VNL5050S5-E Block diagrams and pins configurations
Doc ID 15917 Rev 4 7/32
Figure 5. Configuration diagrams (top view)
Table 3. Suggested connections for unused and n.c. pins
Connection / pin STATUS N.C. INPUT
Floating X X X
To ground Not allowed X Through 10 kΩ resistor
SOT-223
SO-8
Absolute maximum rating VNL5050N3-E / VNL5050S5-E
8/32 Doc ID 15917 Rev 4
2 Absolute maximum rating
Stressing the device above the rating listed in the Ta bl e 4 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 absolute maximum rating conditions for extended periods may affect device
reliability. Refer also to the STMicroelectronics SURE program and other relevant quality
document
2.1 Absolute maximum ratings
2.2 Thermal data
Table 4. Absolute maximum ratings
Symbol Parameter
Val ue
Unit
SOT-223 SO-8
V
DS
Drain-source voltage (V
IN
= 0 V) Internally clamped V
I
D
DC drain current Internally limited A
- I
D
Reverse DC drain current -4 A
I
S
DC supply current - -1 to 10 mA
I
IN
DC input current -1 to 10 mA
I
STAT
DC status current - -1 to 10 mA
V
ESD1
Electrostatic discharge
(R = 1.5 kΩ; C = 100 pF)
– DRAIN
– SUPPLY, INPUT, STATUS
5000
4000
V
V
ESD2
Electrostatic discharge on output pin only
(R = 330 Ω, C = 150 pF)
2000 V
T
j
Junction operating temperature -40 to 150 °C
T
stg
Storage temperature -55 to 150 °C
E
AS
Single pulse avalanche energy
(L = 1.1 mH, T
J
= 150 °C, R
L
=0, I
OUT
= I
limL
)
93 mJ
Table 5. Thermal data
Symbol Parameter
Maximum value
Unit
SOT-223 SO-8
R
thj-amb
Thermal resistance junction-ambient 108.3
(1)
1. When mounted on a standard single-sided FR4 board with 0.5 cm
2
of Cu (at least 35 µm thick) connected
to all DRAIN pins
87 °C/W
VNL5050N3-E / VNL5050S5-E Electrical characteristics
Doc ID 15917 Rev 4 9/32
3 Electrical characteristics
Values specified in this section are for V
supply
= V
IN
= 4.5 V to 5.5 V, -40 °C < T
j
< 150 °C,
unless otherwise stated.
Table 6. Power MOS section
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
supply
Operating supply voltage - 3.5 5 5.5 V
R
ON
ON-state resistance
I
D
= 2 A; T
j
= 25 °C,
V
supply
= V
IN
= 5 V
50
mΩ
I
D
= 2 A; T
j
= 150 °C,
V
supply
= V
IN
= 5 V
100
V
CLAMP
Drain-source clamp voltage V
IN
= 0 V; I
D
= 2 A 41 46 52 V
V
CLTH
Drain-source clamp
threshold voltage
V
IN
= 0 V; I
D
= 2 mA 36 V
I
DSS
OFF-state output current
V
IN
= 0 V; V
DS
= 13 V;
T
j
= 25 °C
03
µA
V
IN
= 0 V; V
DS
= 13 V;
T
j
= 125 °C
05
Table 7. Source drain diode
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
SD
Forward on voltage I
D
= 2 A; V
IN
= 0 V - 0.8 - V
Table 8. Input section
(1)
.
1. Valid for VNL5050N3-E option (input and supply pins connected together)
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
ISS
Supply current from input pin
ON-state: V
supply
= V
IN
= 5 V;
V
DS
= 0 V
30 110 µA
V
ICL
Input clamp voltage
I
S
= 1 mA 5.5 7
V
I
S
= -1 mA -0.7
V
INTH
Input threshold voltage V
DS
= V
IN
; I
D
= 1 mA 1 3.5 V
Table 9. Status pin
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
STAT
Status low output voltage I
STAT
= 1mA 0.5 V
I
LSTAT
Status leakage current
Normal operation,
V
STAT
= 5 V
10 µA
C
STAT
Status pin input capacitance
Normal operation,
V
STAT
= 5 V
100 pF
Electrical characteristics VNL5050N3-E / VNL5050S5-E
10/32 Doc ID 15917 Rev 4
V
STCL
Status clamp voltage
I
STAT
= 1 mA 5.5 7
V
I
STAT
= -1 mA -0.7
1. Valid for VNL5050S5-E option
Table 10. Logic input
(1)
1. Valid for VNL5050S5-E option
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IL
Low-level input voltage - 0.9 V
I
IL
Low-level input current V
IN
= 0.9 V 1 µA
V
IH
High-level input voltage - 2.1 V
I
IH
High-level input current V
IN
= 2.1 V 10 µA
V
I(hyst)
Input hysteresis voltage - 0.13 V
V
ICL
Input clamp voltage
I
IN
= 1 mA 5.5 7
V
I
IN
= -1 mA -0.7
Table 11. Openload detection
(1)
1. Valid for VNL5050S5-E option
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Ol
Openload OFF-state voltage
detection threshold
V
IN
= 0 V 0.6 1.2 1.7 V
t
d(oloff)
Delay between INPUT falling
edge and STATUS falling edge
in openload condition
I
OUT
= 0 A 45 425 1100 µs
Table 12. Supply section
(1)
1. Valid for VNL5050S5-E option
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
S
Supply current
OFF-state: T
j
= 25 °C;
V
IN
= V
DRAIN
= 0 V;
10 25
µA
ON-state: T
j
= 25 °C;
V
IN
= 5 V; V
DS
= 0 V
25 110
V
SCL
Supply clamp voltage
I
SCL
= 1 mA 5.5 7
V
I
SCL
= -1 mA -0.7
Table 9. Status pin
(1)
(continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
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