VNI2140J STMicroelectronics, VNI2140J Datasheet - Page 13

• Manufacturer Part Number: VNI2140J
• Description: MOSFET & Power Driver ICs Dual High Side Power Solid State
• Manufacturer: STMicroelectronics
• Type: Dual High Side Smart Power Solid State Relayr
• Series: -r

Specifications of VNI2140J

• Product: Relay Drivers
• Rise Time: 10 us
• Fall Time: 8 us
• Propagation Delay Time: 20 us
• Supply Voltage (max): 45 V
• Supply Voltage (min): 9 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 180 C
• Mounting Style: SMD/SMT
• Maximum Turn-off Delay Time: 30 us
• Maximum Turn-on Delay Time: 20 us
• Number Of Drivers: 2
• Number Of Outputs: 2
• Output Current: 1 A
• Output Voltage: 45 V
• Package / Case: PowerSSO-12
• Input Type: Non-Inverting
• On-state Resistance: 80 mOhm
• Current - Output / Channel: 500mA
• Current - Peak Output: 1A
• Voltage - Supply: 9 V ~ 45 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

VNI2140J
7
Open load
In order to detect the open load fault a pull-up resistor must be connected between the V
line and the output pin.
In a normal condition a current flows through the network made up of a pull-up resistor and
a load. The voltage across the load is less than V
This is the result in the condition:
Equation 1
or
Equation 2
When a open load event occurs the voltage on the output pin rises to a value higher than
V
This result in the condition:
Equation 3
Figure 8.
OLMAX
(depending on the pull-up resistor). The diag pin will go down.
Open load detection
Doc ID 15187 Rev 7
⎛
⎝
V
------------------- - 1
V
CC
OLMIN
V
R
CC
----------------------------------- -
R
PU
LOAD
<
R
–
----------------------------------------- -
LOAD
V
I
OUT OFF1
CC
+
⎞ R
⎠
⋅
R
–
(
PU
LOAD
V
OLMIN
OLMAX
<
V
)MIN
OLMIN
<
R
; so the diag pin is kept high.
PU
Open load
13/23
CC