TPS51604 Texas instruments

TPS51604

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TPS51604

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Описание

The TPS51604 drivers are optimized for high-frequency CPU VCORE applications. Advanced features such as reduced dead-time drive and auto zero crossing are used to optimize efficiency over the entire load range. The SKIP pin provides the option of CCM operation to support controlled management of the output voltage. In addition, the TPS51604 supports two low-power modes. With the PWM input in tri-state, quiescent current is reduced to 130 µA, with immediate response. When SKIP is held at tri-state, the current is reduced to 8 µA (typically 20 µs is required to resume switching). Paired with the appropriate TI controller, the drivers deliver an exceptionally high performance power supply system. The TPS51604 device is packaged in a space saving, thermally-enhanced 8-pin, 2-mm × 2-mm WSON package and operates from –40°C to 105°C.

Reduced Dead-Time Drive Circuit for Optimized
CCM
Automatic Zero Crossing Detection for Optimized
DCM Efficiency
Multiple Low-Power Modes for Optimized Light-
Load Efficiency
Optimized Signal Path Delays for High-Frequency
Operation
Integrated BST Switch Drive Strength Optimized
for Ultrabook FETs
Optimized for 5-V FET Drive
Conversion Input Voltage Range (V_IN): 4.5 to 28 V
2-mm × 2-mm, 8-Pin, WSON Thermal Pad
Package

Bus voltage (max) (V)	28
Power switch	MOSFET
Input VCC (min) (V)	4.5
Input VCC (max) (V)	5.5
Peak output current (A)	4
Operating temperature range (°C)	-40 to 105
Undervoltage lockout (typ) (V)	4
Rating	Catalog
Propagation delay time (µs)	0.015
Rise time (ns)	15
Fall time (ns)	10
Iq (mA)	0.5
Channel input logic	TTL
Negative voltage handling at HS pin (V)	-0.1
Features	Dead time control, Synchronous rectification
Driver configuration	Dual