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參數(shù)資料
| 型號： | TPIC7218QPFPRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP80 |
| 封裝： | GREEN, PLASTIC, HTQFP-80 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 259K |
| 代理商： | TPIC7218QPFPRQ1 |
www.ti.com
SLDS182 – AUGUST 2010
Power Controller and Sensor ASIC for Braking Applications
Check for Samples: TPIC7218-Q1
1
Introduction
The TPIC7218 is an antilock brake controller designed for use in harsh automotive environments,
requiring few external components. It has eight high current low-side drivers for use with solenoid valves,
four configurable wheel speed sense inputs capable of handling both Intelligent and Active sensors, and
high-side gate drivers for controlling two external N-channel MOSFETs for use with a pump motor and
master relay. Besides this main functionality, the TPIC7218 also has drivers for warning lamps, a
high-side gate driver for controlling an external N-channel MOSFET for use with a relay, K-line driver, and
various I/O pins for other common antilock braking needs. The TPIC7218 boosts an internal charge-pump
allowing the high-side drivers to use inexpensive N-channel MOSFETs. The digital I/O pins can be
configured for both 5 V and 3.3 V levels for easy connection to any microprocessor. The TPIC7218 uses
standard SPI protocol for communication.
For the full version of this document, please contact msamktg@list.ti.com.
1
1.1
Features
– 4 Low-Side Switches with Short Circuit
PWM Low-Side Drivers
Protection
– 4 PWM Low-Side Driver Outputs
– 2 High Voltage Low-Side Output Drivers
– Current Limitation
– 4 Digital Outputs to Indicate the Speed
– Thermal Protection: TJ = 185°C (Min)
– Integrated Data Decoder for Intelligent Wheel
– Open-Load Detection
Speed Sensors
– Energy Capability: 30 mJ at TJ = 150°C
Open-Drain Warning Lamp Drivers
– Clamp Voltage: 40 V
– 2 High Voltage Drivers
– Low RDSon: 0.3
Ω (Max) at TJ = 150°C
– Thermal Protection With Hysteresis
Digital Low-Side Drivers
– Current Limitation
– 4 Digital Low-Side Driver Outputs
– TJ = 185°C (Min)
– Current Limitation
– RDSon: 4 Ω at TJ = 150°C
– Thermal Protection: TJ = 185°C (Min)
– Clamp Voltage: 40 V
– Open-Load Detection
Other Features
– Energy Capability: 50 mJ at TJ = 150°C
– K-LINE Transceiver
– Clamp Voltage: 40 V
– 3.3-V or 5-V Compatible Digital IO
– Low RDSon: 0.2 Ω (Max) at TJ = 150°C
– Internal 3.3V Regulator
Dual High-Side Power Drivers
– Internal Charge Pump
– Direct Input Control
– 1 Low Voltage open-drain warning lamp
– PWM Capability
driver
– Load Dump (overvoltage) Detection
– Full Duplex SPI Interface
– Programmable over current detection
– Watchdog input with open-drain fault
– Programmable short-circuit Protection
reporting for safety
– Load Leakage Detection
– "Pb-Free"(1) ASIC
– Fault detection over SPI
– Automotive Temperature Range of –40°C to
Wheel Speed Sensor Interface
125°C
– Compatible with Intelligent and Active Wheel
– Qualified based on AEC-Q100 REV G
Speed Sensors
– Compliant with CISPR 25 NB Class 5 for
– 4 High-Side Switches with Short Circuit
Conducted and Radiated Emissions
Protection
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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