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The VN5012AK-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 shut-down with automatic restart allows the device to recover normal operation as soon as fault condition disappears.
VN5012AK-E Maximum Ratings
Symbol
Parameter
Value
Unit
VCC
DC supply voltage
41
V
-VCC
Reverse DC supply voltage
0.3
V
-IGND
DC reverse ground pin current
200
mA
IOUT
DC output current
Internally limited
A
-IOUT
Reverse DC output current
-30
A
IIN
DC input current
-1 to 10
mA
ICSD
DC current sense disable input current
-1 to 10
mA
-ICSENSE
DC reverse CS pin current
200
mA
VCSENSE
Current Sense maximum voltage
VCC-41 +VCC
V V
VN5012AK-E Features
`General features 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 Self limiting of fast thermal transients Protection against loss of ground and loss of VCC Thermal shut down Reverse battery protection (see Figure 26)
VN5012AK-E Typical Application
· All types of resistive, inductive and capacitive loads