Datasheet > PA62

PA62

更新时间： 2024-09-16 03:43:31

品牌	Logo	应用领域
APEX		运算放大器高压高电压电源
页数	文件大小	规格书
4页	296K
描述
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS

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中文翻译

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PA62 数据手册

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FEATURES

• LOW COST

• WIDE BANDWIDTH - 1.1 Mhz

• HIGH OUTPUT CURRENT - 1A PER AMPLIFIER

• WIDE COMMON MODE RANGE Includes negative supply

• WIDE SUPPLY VOLTAGE RANGE Single supply: 5V to

40V Split supplies: ± 2.5V to ± 20V

• LOW QUIESCIENT CURRENT

20-PIN PSOP

PACKAGE STYLE DK

• VERY LOW DISTORTION

againstthermaloverloads.Caremustbeexercisedtoobserve

the Safe Operating Area (SOA) curve and proper heatsinking

will ensure maximum reliability.

APPLICATIONS

The wide common mode input range includes the nega-

tive rail, facilitating single supply applications. This makes it

possible to have a ground-based input driving a single supply

ampliﬁer with ground acting as the second or bottom supply

of the ampliﬁer.

• HALF AND FULL BRIDGE MOTOR DRIVERS

• AUDIO POWER AMPLIFIER

Stereo

Bridge

- 11.3W RMS per ampliﬁer

- 22.6W RMS per two ampliﬁers

Two Bridges - 45.2W RMS per package

• 3 PHASE MOTOR DRIVER

3 Channels - 33.9W RMS per package

• IDEAL FOR SINGLE SUPPLY SYSTEMS

FIGURE 2. Bi-directional speed control from a single supply

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28V

- Peripherals

- Automotive

- Avionic

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• PACKAGING OPTIONS

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20-Pin PSOP, JEDEC MO-166-AB (PA62DK)

DESCRIPTION

TYPICAL APPLICATION

The ampliﬁer design is a dual power op amp on a single

monolithic die. The quad output PA62 combines two dual op

amp die in a single PSOP package. This approach provides

a cost-effective solution to applications where multiple ampli-

ﬁers are required or a bridge conﬁguration is needed. Four

independentampliﬁerscoupledwithlowquiescentcurrentand

very low THD makes this an ideal low-distortion 4-channel

audio ampliﬁer for applications such as laptops and computer

speakers.

R1 and R2 set up Ampliﬁer A as non-inverting. Ampliﬁer

B is set up as a unity gain inverter driven from the output of

Ampliﬁer A. Note that Ampliﬁer B inverts the signals about

the reference node, which is set at mid-supply by R5 and

R6. When the command input is midrange, so is the output

of Ampliﬁer A. Since this is also equivalent to the reference

node voltage, the output of Ampliﬁer B is the same resulting

in 0V across the motor. Inputs more positive than 5V result in

motor current ﬂow from left to right (see Figure 2). Inputs less

than 5V drive the motor in the opposite direction.

The quad output PA62DK is available in a surface mount

20-pin PSOP, JEDEC MO-166-AB package. The heat slug

of the DK package is tied to -Vs.

The ampliﬁers are especially well-suited for applications

such as this. The extended common mode range allows

command inputs as low as 0V. The output swing lets it drive

within 2V of the supply at an output of 1A. This means that

a command input that ranges from 0 to 10V will drive a 24V

motor from full scale CCW to full scale CW at ±1A.

Built-in thermal shutdown allows the devices to self-protect

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FIGURE 3. External Connections

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FIGURE 1. Equivalent schematic (one channel)

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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中文翻译

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