Microchip HV254 Manual

Microchip Ikke kategoriseret HV254

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Supertex inc.
Supertex inc.
www.supertex.com
HV254
Doc.# DSFP-HV254
C070813
Features
►32 independent high voltage ampliers
►Up to 250V output voltage
►3.0V/µs typical output slew rate
►Very low operating current (typically 45µA per
channel)
►High value internal feedback resistors
►Fixed gain of 50V/V
►Integrated silicon diode for temperature sensing
Applications
►MEMS (microelectromechanical systems) driver
►Piezoelectric transducer driver
►Optical crosspoint switches (using MEMS
technology)
General Description
The Supertex HV254 is a 32-channel, high voltage, amplier
array integrated circuit. It operates on a 275V high voltage
supply and two low voltage supplies: +5.0V and -5.0V. Each
channel has its own input and output. An integrated diode is
included to help monitor die temperature.
The input voltage can be from a DAC (Digital to Analog
Converter) with a voltage range of 0V to the low voltage supply,
V+. The output of the HV254 will swing from 7.0 to 250V. It
cannot swing to ground. With the internal gain set at 50V/V, a
minimum input signal of 140mV will still maintain linearity. Input
voltages below 140mV can be applied without damage to the
device. However, the amplier will be saturated. Typical output
load is equivalent to a 125MΩ resistor in parallel with a 100pF
capacitor. The outputs have a guaranteed slew rate of at least
3.0V/µs. The internal closed loop gain is set at a nominal value
of 34.0dB (50V/V).
The HV254 is designed to operate with minimal power
consumption while maintaining a guaranteed slew rate of
3.0V/µs. High value resistors are used for the gain setting to
minimize current on the feedback path.
Typical Application Circuit
32-Channel High Voltage
Amplier Array
VIN0HVOUT0
HV254
PGND
HVOUT1
MEMS
Array
y
y
x
x
HVOUT2
HVOUT3
HVOUT30
HVOUT31
V-
V+ VPP
VIN1
VIN2
VIN3
VIN31
VIN30
Micro
Processor
DAC
DAC
DAC
DAC
DAC
DAC
High Voltage
Op-Amp
Array
2
HV254
Supertex inc.
www.supertex.com
Doc.# DSFP-HV254
C070813
Operating Conditions
Absolute Maximum Ratings
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
Continuous operation of the device at the absolute rating level may affect
device reliability. All voltages are referenced to device ground.
Parameter Value
VPP, High voltage supply 275V
V+, Low voltage positive supply 7.0V
V-, Low voltage negative supply -7.0V
HVOUT, Output voltage 0V to 275V
VIN, Analog input signal 0V to 5.0V
Storage temperature range -65°C to 150°C
Maximum junction temperature 150°C
Sym Parameter Min Max Units ConditionsTyp
VPP High voltage positive supply - 275 ---50 V
V+ Low voltage positive supply 4.75 ---5.00 5.25 V
V- Low voltage negative supply -4.75 -5.00 -5.25 ---V
IPP VPP supply current 1.0 - mA2.5 VPP = 275V. All inputs set at 140mV.
Typically 45µA per channel.
I+ V+ supply current - - 1.0 mA V+ = 5.25V
I- V- supply current - - -3.0 mA V- = -5.25V
TAAmbient temperature range -10 - 70 °C ---
TJOperating temperature range -10 - 125 °C ---
Pin Conguration
1
100
Product Marking
100-Lead MQFP
(top view)
100-Lead MQFP
YY = Year Sealed
WW = Week Sealed
L = Lot Number
C = Country of Origin
A = Assembler ID
= “Green” Packaging
Top Marking
HV 25 4 F G
LLLLLLLLLL
YYW W
CCCCCCCC AAA
Package may or may not include the following marks: Si or
Ordering Information
Part Number Package Option Packing
HV254FG-G 100-Lead MQFP 66/Tray
Typical Thermal Resistance
Package θja
100-Lead MQFP 39 OC/W
-G denotes a lead (Pb)-free / RoHS compliant package

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: HV254

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