(*) Per channel with all the output pins connected to the PCB.
■ CMOS COMPATIBLE INPUT
■ PROPORTIONAL LOAD CURRENT SENSE
■ SHORTED LOAD PROTECTION
■ UNDERVOLTAGE AND OVERVOLTAGE
DS(on)
I
OUT
V
CC
SHUTDOWN
■ OVERVOLTAGE CLAMP
■ THERMAL SHUTDOWN
■ CURRENT LIMITATION
■ PROTECTION AGAI NST LOSS OF GROUND
AND LOSS OF V
■ VERY LOW ST AND -BY P OWER DI SSIPA TION
■ REVERSE BA TTERY PROTECTION ( *)
CC
DESCRIPTION
The VND920 is a double chip device made by
usingSTMicroelectronics VIPower M0-3
Technology, intended fo r driving any kind of loa d
with one side connected to ground. Active VCC pin
CONNECTION DIAGRAM (TO P VI EW)
SO-28 (DOUBLE ISLAND)
ORDER CODES
PACKAGETUBET&R
SO-28VND920VND92013TR
voltage clamp protects the device against low
energy spikes (see ISO7637 transient
compatibility table). Active current limitation
combined with thermal shutdown a nd automatic
restart prote ct the device against over load. Builtin analog cur rent sense output deli vers a current
proportional to the load current. Device
automatically turns off in case of ground pin
disconnection.
V
1
CC
GND 1
INPUT 1
CURRENT SENSE 1
NC
NC
V
1
CC
V
2
CC
GND 2
INPUT 2
CURRENT SENSE 2
NC
NC
2
V
CC
(*) See application schematic at page 10
October 20 021/18
1
1415
28
V
OUTPUT 1
OUTPUT 1
OUTPUT 1
OUTPUT 1
OUTPUT 1
OUTPUT 1
OUTPUT 2
OUTPUT 2
OUTPUT 2
OUTPUT 2
OUTPUT 2
OUTPUT 2
V
CC
CC
1
2
1
VND920
BLOCK DIAGRAM
V
1
CC
GND 1
INPUT 1
GND 2
V
CC
CLAMP
OVERTEMPERATURE
DETECTION
V
CC
CLAMP
LOGIC
OVERVO LTAGE
DETECTION
UNDERVOLTAGE
DETECTION
DRIVER
CURRENTLIMITER
I
OVERVOLTAGE
DETECTION
UNDERVOLTAGE
DETECTION
PowerCLAMP
OUTPUT 1
VDS LIMITER
OUTCURRENT
PowerCLAMP
K
SENSE 1
V
CC
2
2/18
INPUT 2
LOGIC
OVERTEMPERATURE
DETECTION
DRIVER
CURRENTLIMITER
VDS LIMITER
I
OUTCURRENT
K
OUTPUT 2
SENSE 2
VND920
ABSOLUTE MAXIMUM RATI NG (Per each channel)
SymbolParameterValueUnit
tot
DC Supply Voltage41V
Reverse DC Supply Voltage- 0.3V
CC
DC Reverse Ground Pin Current- 200mA
DC Output CurrentInternally LimitedA
Reverse DC Output Current - 21A
DC Input Curr ent+/- 10mA
Current Sense Maximum Voltage-3
+15
Electros tatic Discharge (Human Body Model: R=1.5KΩ; C=100pF)
- INPUT
- CURRENT SENSE
- OUTPU T
- V
CC
Maximum Switching Energy
(L=0.25m H; R
=0Ω; V
L
=13.5V ; T
bat
=150ºC ; IL=45A)
jstart
4000
2000
5000
5000
355mJ
Powe r Dissipation Tl≤25°C6.25 (**)W
Junction Operating TemperatureInternally limited°C
j
Case Operating Temperature- 40 to 150°C
c
Storage Temperature- 55 to 150°C
V
CC
- V
- I
GND
I
OUT
- I
OUT
I
IN
V
CSENSE
V
ESD
E
MAX
P
T
T
T
STG
(**) Per island
V
V
V
V
V
V
CURRENT AND VOLTAGE CONVENTIONS
I
S1
V
CC1
I
IN1
V
IN1
I
IN2
V
IN2
INPUT1
INPUT2
GROUND1
I
GND1
V
CC2
OUTPUT1
OUTPUT2
GROUND2
V
CC1
CURRENT SENSE 1
CURRENT SENSE 2
I
GND2
I
OUT1
I
SENSE1
I
OUT2
I
SENSE2
V
SENSE2
V
V
OUT2
I
S2
SENSE1
V
OUT1
V
CC2
3/18
VND920
THERMAL DATA (Per island)
SymbolParameterValueUnit
R
thj-lead
R
thj-amb
R
thj-amb
(*) When mounted on a standard single-sided FR-4 board with 1cm2 of Cu (at leas t 35µ m thick) connected to all VCC pins.
Horizontal mounting and no artificial air flow.
ELECTRICAL CHARACTERISTICS (8V<VCC<36V; -40°C<Tj<150°C unless otherwise specified)
(Per island)
POWER
SymbolParameterTest ConditionsMinTypMaxUnit
V
V
USD
V
R
V
clamp
I
I
L(off1)
I
L(off2)
I
L(off3)
I
L(off4)
Thermal R esistance Junction-lead20°C/W
Thermal Resistance Ju nction-ambient (one chi p ON)55 (*)°C/W
Thermal Resistance Ju nction-ambient (two chi ps ON)42 (*)°C/W
CC
Opera ting S u pply Vol tag e5.51336V
Undervoltage Shut -down345.5V
OV
ON
Overv oltage Shut -down36V
=10A; Tj =25°C
I
On State Resistance
OUT
I
=10A
OUT
I
=3A; VCC=6V
OUT
Clamp VoltageICC=20mA (See note 1)414855V
Off Stat e; V
Supply Current
S
Off Stat e; V
T
=25°C
j
On State; V
R
SENSE
Off Stat e O utput Current VIN=V
OUT
Off Stat e O utput Current VIN=0V; V
Off Stat e O utput Current VIN=V
Off Stat e O utput Current VIN=V