TPS1211-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? AEC-Q100 qualified with the following results

– Device temperature grade 1:

–40°C to +125°C ambient operating

temperature range

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? 3.5-V to 40-V input range (45-V absolute

maximum)

? Output reverse polarity protection down to –30 V

? Integrated 12-V charge pump with 100-μA capacity

? Low 0.9-μA shutdown current (EN/UVLO = Low)

? Strong pullup (3.7 A) and pulldown (4 A) gate

driver

? Drives external back-to-back N-channel MOSFETs

? Variant with integrated precharge switch driver

(TPS12111-Q1) to drive capacitive loads

? Two-level adjustable overcurrent protection

(IWRN, ISCP) with adjustable response time

(TMR) and fault flag output (FLT_I)

? Fast short-circuit protection: 1.2 μs (TPS12111-Q1,

TPS12112-Q1), 4 μs (TPS12110-Q1)

? Accurate analog current monitor output (IMON):

±2 at 30 mV (VSNS)

? Accurate, adjustable undervoltage lockout (UVLO)

and overvoltage protection (OV): < ±2

? Remote overtemperature sensing (DIODE) and

protection with fault flag output (FLT_T)

? Pin-to-pin compatible with TPS4811-Q1

2 Applications

? Power distribution box

? Body control module

? DC/DC converter

3 Description

The TPS1211-Q1 family is a 45-V, smart high-side

driver with protection and diagnostics. With wide

operating voltage range of 3.5 V–40 V, the device is

suitable for 12-V system designs.

The device has a strong 3.7-A peak source (PU) and

4-A peak sink (PD) gate driver that enables power

switching using parallel FETs in high-current system

designs. Use INP as the gate driver control input.

The device has accurate current sensing (±2 at

30 mV) output (IMON) enabling system designs

for energy management. The device has integrated

two-level overcurrent protection with FLT_I output

with complete adjustability of thresholds and

response time. Auto-retry and latch-off fault behavior

can be configured. The device features remote

overtemperature protection with FLT_T output.

The TPS12111-Q1 integrates a precharge driver (G)

with control input (INP_G). This features enables

designs that must drive large capacitive loads. In

shutdown mode (EN/UVLO < 0.3 V), the controller

draws a total shutdown current of 0.9 μA (typical).

The TPS1211-Q1 is available in a 19-pin VSSOP

package with a pin removed between adjacent high

voltage and low voltage pins, providing 0.8-mm

clearance.