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TPIC9201N Datasheet

  • TPIC9201N

  • MICROCONTROLLER POWER SUPPLY AND MULTIPLE LOW SIDE DRIVER IC

  • 394.04KB

  • 11頁

  • TI

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TPIC9201N
www.ti.com
SLIS115 鈥?JULY 2005
MICROCONTROLLER POWER SUPPLY AND MULTIPLE LOW SIDE DRIVER IC
FEATURES
鈥?/div>
Eight Low-Side Drivers With Internal Clamp
for Inductive Loads and Current Limiting for
Self Protection
鈥?Seven Outputs are Rated at 150 mA and
Controlled Through the Serial Interface
鈥?One Output Rated at 150 mA and is
Controlled Through Serial and/or Parallel
Input
5-V 鹵5% Regulated Power Supply With
200-mA Load Capability at V
IN
Max of 18 V
Internal Voltage Supervisory for the Regulated
Output
Serial Communications for Control of Eight,
Low Side Drivers
Enable/Disable Input for Out1
5 V or 3.3 V, I/O Tolerant for Interface to
鈥?/div>
Microcontroller
Programmable Power On Reset Delay Before
RST is Asserted High, Once the 5 V is Within
Specified Range (Typically 6 ms)
Programmable De-glitch Timer Before n
RST
is
Asserted Low (typically 40 碌s)
Zero Voltage Detection Signal With Built in
Filter of 20 碌s
Thermal Shutdown for Self Protection
鈥?/div>
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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APPLICATIONS
AC Unit
Washing Machines
Refrigeration Systems
DESCRIPTION
The ac-unit power supply with low side drive output provides regulated 5-V output to power the system
microcontroller and drive up to eight inductive and/or resistive loads. The ac zero detect circuitry is monitoring the
cross-over voltage of the mains ac supply. The resultant signal is a low frequency clock output on the ZVS
terminal based on the ac line cycle. This information allows the microcontroller to reduce inrush current by
powering loads on the ac-line peak voltage.
A serial communications interface controls the eight low side outputs; each output has an internal snubber circuit
to absorb the energy in the inductor at turn OFF. Alternatively, the system can place a fly-back diode to V
IN
to
help recirculate the energy in an inductive load at turn OFF.
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.
PRODUCT PREVIEW information concerns products in the forma-
tive or design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the
right to change or discontinue these products without notice.
Copyright 漏 2005, Texas Instruments Incorporated
PRODUCT PREVIEW

TPIC9201N 產(chǎn)品屬性

  • 20

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān)

  • -

  • 低端

  • 串行

  • 8

  • -

  • 200mA

  • 350mA

  • 7 V ~ 18 V

  • -40°C ~ 125°C

  • 通孔

  • 20-DIP（0.300"，7.62mm）

  • 20-PDIP

  • 管件

  • 296-19606-5

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