TITPL7407L七路高压大电流NMOS驱动器办理方案

TI公司的TPL7407L是七路高压大电路NMOS晶体管阵列,每路输出电流高达600mA,输出电压40V,输出泄电流小于10nA,控制逻辑1.8V-5.0V,主要用混淆电力汽车电池管理, 电动汽车充电器, 马达控制,太阳能逆变器,家用电器,打印机,示波器,通信/服务器电源等.本文先容了TPL7407L 主要特点, 简化电路图和多种应用电路.以及评估板TPL7407LEVM主要特点,单路电路图和完整电路图与PCB元件结构图.

The TPL7407L is a high-voltage, high-current NMOS transistor array. This device consists of seven NMOS transistors that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The maximum drain-current rating of a single NMOS channel is 600 mA. New regulation and drive circuitry added to give maximum drive strength across all GPIO ranges (1.8V-5.0V).The transistors can be paralleled for higher current capability.

The TPL7407L’s key benefit is its improved power efficiency and lower leakage than a Bipolar Darlington Implementation. With the lower V_OL the user is dissipating less than half the power than traditional relay drivers with currents less than 250mA per channel.

TPL7407L 主要特点:

600mA-Rated Drain Current (Per Channel)
CMOS Pin-to-Pin Improvement of 7-channel Darlington Array (e.g. ULN2003A)
Power Efficient (Very low V_OL)
Less Than 4 Times Lower V_OL at 100mA Than Darlington Arrray
Very Low Output Leakage < 10nA Per Channel
Extended Ambient Temperature Range:
T_A = C40℃ to 125℃
High-Voltage Outputs 40V
Compatible with 1.8V to 5.0V Micro-controllers and Logic Interface
Internal Free-wheeling Diodes for Inductive Kick-back Protection
Input Pull-down Resistors Allows Tri-stating the Input Driver
Input RC-Snubber to Eliminate Spurious Operation in Noisy Environment
Inductive Load Driver Applications
ESD Protection Exceeds JESD 22
2kV HBM, 500V CDM
Available in 16-pin SOIC and TSSOP Packages

TPL7407L主要应用:

Battery Management: High Cell Count for HEV
EV HEV Charger: Level 3
Motor Control: AC Induction
Motor Control: Brushless DC
Motor Control: Permanent Magnet
Oscilloscope
Printer
Solar Power Inverters
Washing Machine: Low-End
EV HEV Charger: Level 1 & 2
HVAC - Heating, Ventilating, and Air Conditioning
Motor Control: Brushed DC
Motor Control: Low-Voltage
Motor Control: Stepper Motor
Power: Telecom/Server AC/DC Supply: Dual Controller: Analog
Refrigerator
Washing Machine: High-End

图1{京电港论坛}. TPL7407L简化电路图

图2{京电港论坛}. TPL7407L步进马达驱动电路图

图3{京电港论坛}. TPL7407L多用图沉驱动电路图

图4{京电港论坛}. TPL7407L 24V继电器驱动电路图

评估板TPL7407LEVM

The TPL7407LEVM is 7-Channel relay and Inductive load sink driver evaluation module that demonstrates the integrated circuit TPL7407LDR. The TPL7407LDR is a high-performance peripheral driver designed to drive loads of many types including relays, stepper motors, lamps, and light emitting diodes.

This EVM is configured with seven push buttons that supply input to the TPL7407L driver and seven relays are driven by the TPL7407L outputs. A four terminal block must be connected to external power supplies to provide input and relay power. All of the TPL7407L input and output pins are accessible for external connection.

图5{京电港论坛}: 评估板TPL7407LEVM外形图

评估板TPL7407LEVM主要特点:

Seven numbered push-buttons control input for easy basic device testing

Three 0.1” spaced post connector ports allow access to all input and output pins and relay contacts Three open locations per channel on circuit board for user supplied components Onboard relay loads can be disconnected by removing surface mount zero ohm resistors Device clearance area is large to allow use of small profile temperature forcing equipment

评估板TPL7407LEVM主要指标:


图6{京电港论坛}: 评估板TPL7407LEVM单路电路图

图7{京电港论坛}: 评估板TPL7407LEVM电路图

图8{京电港论坛}: 评估板TPL7407LEVM PCB元件结构图
详情请复制打开此衔接地址:
http://www.ti.com/lit/ds/symlink/tpl7407l.pdf
和http://www.ti.com/lit/ug/slru005/slru005.pdf

slru005.pdf
tpl7407l.pdf