Automotive High-side Protection Controller with Low Quiescent Current.
SGM25702Q
SGM25702Q.pdf
SGM25702Q.pdf
No.14175
FEATURES
• AEC-Q100 (Grade 1) Qualified for Automotive
Applications
TA = -40℃ to +125℃
• Wide Operating Input Voltage Range: 5.5V to 65V
• Less than 11μA Quiescent Current in Disabled Mode
• Controlled Output Rise Time for Safe Capacitive
Loads Connection
• Charge Pump Gate Driver for External N-Channel
MOSFET
• Adjustable Under-Voltage Lockout (UVLO) with
Hysteresis
• UVLO Serves as Second Enable Input for Systems
Requiring Safety Redundancy
• Programmable Fault Detection Delay Time
• MOSFET Latched Off after Load Fault Detection
• Power Good (nPG) Output is Active Low Open
Drain
• Adjustable Input Over-Voltage Protection (OVP)
• Immediate Restart after Over-Voltage Shutdown
• Available in a Green MSOP-10 Package
DESCRIPTION
The SGM25702Q high-side protection controller intelligently manages a high-side N-channel MOSFET during standard on/off transitions and fault conditions. It controls in-rush current through a constant rise time of the output voltage. A power good output indicates when the output voltage matches the input voltage and the MOSFET is fully conducting. The controller includes input UVLO with hysteresis and programmable input OVP. It features a remote on/off control via an enable input and a second safety redundancy enable through programmable UVLO. A single capacitor configures the delay time for initial start-up VGS fault detection, transition VDS fault detection and continuous over-current VDS fault detection. When a fault persists
beyond the set delay, the MOSFET is deactivated until either the enable input or UVLO input is toggled low and then high again, restoring operation.
The SGM25702Q is AEC-Q100 qualified (Automotive Electronics Council Standard Q100 Grade 1) and the use of this device is suitable for automotive applications.
The SGM25702Q is available in a Green MSOP-10 package.
APPLICATION CIRCUIT
PIN CONFIGUTION
