UCC27614-Q1_V01中文资料德州仪器数据手册PDF规格书

1 Features

• Qualified for Automotive Applications

• AEC-Q100 Qualified

– Device Temperature Grade 1

• Typical 10A sink 10A source output currents

• Input and enable pins capable of withstanding up

to –10V

• Absolute maximum VDD voltage: 30V

• Wide VDD operating range from 4.5V to 26V with

UVLO

• Available in 2mm x 2mm SON8 package

• Typical 17.5ns propagation delay

• EN (enable) pin in SOIC8 and VSSOP8 package

• IN– pin can be used for enable and disable

functionality in SON8 package

• VDD independent input thresholds (TTL

compatible)

• Can be used as inverting or noninverting driver

• Operating junction temperature range of –40°C to

150°C

2 Applications

• Telecom switch mode power supplies

• Power factor correction (PFC) circuits

• Solar power supplies

• Motor drives

• High frequency line drivers

• Pulse transformer drivers

• High power buffers

3 Description

The UCC27614-Q1 is a single channel, high-speed,

low-side gate driver capable of effectively driving

MOSFET, IGBT, SiC, and GaN power switches. The

UCC27614-Q1 has a typical peak drive strength

of 10A, which reduces the rise and fall times of

the power switches, lowering switching losses and

increasing efficiency. The small propagation delay

of the UCC27614-Q1 yields better power stage

efficiency by improving dead-time optimization, pulse

width utilization, control loop response, and transient

performance of the system.

The UCC27614-Q1 can handle –10V on its inputs,

which improves robustness in systems with moderate

ground bouncing. The inputs are independent of

supply voltage and can be connected to most

controller outputs for maximum control flexibility. An

independent enable signal allows the power stage to

be controlled independent of the main control logic.

The gate driver can quickly shut off the power stage

if there is a fault in the system (which requires the

power train to be turned off). The enable function also

improves system robustness. Many high-frequency

switching power supplies exhibit high frequency noise

at the gate of the power device, which can get

injected into the output pin of the gate driver and can

cause the driver to malfunction. The UCC27614-Q1

performs well in such conditions due to its transient

reverse current and reverse voltage capability.

The strong internal pulldown MOSFET holds the

output low if the VDD voltage is below the specified

UVLO threshold. This active pulldown feature further

improves system robustness. The 10A drive current

of the UCC27614-Q1 in the 2mm × 2mm package

improves system power density. This small package

also enables optimum gate driver placement and

improved layout.