GENERAL DEscriptION
The SGM48524D is a dual high-speed low-side gate driver for power switches. It has rail-to-rail driving capability and can sink or source up to 5A peak current with capacitive loads. The propagation delays are very short and well matched between the two channels that make the device well suited for applications that need accurate dual gate driving such as synchronous rectifiers. The matched propagation delays also allow for paralleling the two channels when higher driving current is required (such as for paralleled switches). The input voltage thresholds are fixed, independent of supply voltage (VDD), and compatible with low voltage TTL and CMOS logic. Noise immunity is excellent due to the wide hysteresis window between the input low and high thresholds. The device has internal pull-up/pull-down resistors on the input pins to ensure low state on the driver output when the input is floating.
The SGM48524D is available in Green SOIC-8, TDFN-3×3-8L and MSOP-8 (Exposed Pad) packages.
PIN CONFIGURATIONS
FEATURES
Two Independent Gate Drive Channels
5A Source and 5A Sink Peak Currents
Wide Supply Voltage Range: 4.5V to 18V
TTL and CMOS Compatible Logic Threshold
Logic Levels Independent of Supply Voltage
Hysteretic Input Logic for High Noise Immunity
Outputs Held Low when Inputs are Floating
Fast Propagation Delays: 18ns (TYP)
Fast Rise Time: 7ns (TYP)
Fast Fall Time: 7ns (TYP)
Ringing Suppression
Negative Voltage Capability on INx Pins: -10V when (VDD - VINx) ≤ 20V
Negative Voltage Capability on ENx Pins: -10V when (VDD - VENx) ≤ 20V
Negative Voltage Capability on OUTx Pin: -2V (Pulse < 200ns)
Protection Features
Thermal Shutdown Protection
Under-Voltage Lockout
-40℃ to +125℃ Operating Temperature Range
Available in Green SOIC-8, MSOP-8 (Exposed Pad) and TDFN-3×3-8L Packages
APPLICATIONS
DC/DC Converters
Solar Power, Motor Drivers
Switched-Mode Power Supplies