首页 > 驱动程序和接口 > MOSFET 驱动器 > UC1706

UC1706

更新时间：2025-07-01 12:27:41

品牌：TI

描述：Dual Output Driver

PDF下载

中文翻译

免费 PCB/SMT

概述
数据手册
替代型号

如果您发现信息不准确，欢迎纠错

UC1706 概述

Dual Output Driver 双路输出驱动器

UC1706 数据手册

通过下载UC1706数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

PDF下载

UC1706

UC2706

UC3706

Dual Output Driver

FEATURES

DESCRIPTION

•

Dual, 1.5A Totem Pole Outputs

40nsec Rise and Fall into 1000pF

Parallel or Push-Pull Operation

Single-Ended to Push-Pull Conversion

The UC1706 family of output drivers are made with a high-speed

Schottky process to interface between low-level control functions and

high-power switching devices - particularly power MOSFET's. These de-

vices implement three generalized functions as outlined below.

First: They accept a single-ended, low-current digital input of either polar-

ity and process it to activate a pair of high-current, totem pole outputs

which can source or sink up to 1.5A each.

High-Speed, Power MOSFET

Compatible

Second: They provide an optional single-ended to push-pull conversion

through the use of an internal flip-flop driven by double-pulse-

suppression logic. With the flip-flop disabled, the outputs work in parallel

for 3.0A capability.

•

Low Cross-Conduction Current Spike

Analog, Latched Shutdown

Internal Deadband Inhibit Circuit

Low Quiescent Current

Third: Protection functions are also included for pulse-by-pulse current

limiting, automatic deadband control, and thermal shutdown.

These devices are available in a two-watt plastic “bat-wing” DIP for op-

eration over a 0°C to 70°C temperature range and, with reduced power,

in a hermetically sealed cerdip for -55°C to +125°C operation. Also avail-

able in surface mount Q and L packages.

5 to 40V Operation

Thermal Shutdown Protection

16-Pin Dual-In-Line Package

20-Pin Surface Mount Package

TRUTH TABLE

OUT = INV and N.I.

OUT = INV or N.I.

INV

N.I

OUT

BLOCK DIAGRAM

10/98

UC1706

UC2706

UC3706

ABSOLUTE MAXIMUM RATINGS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N--Pkg . . . . . . . . . . . .

J--Pkg

Supply Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . 40V

Collector Supply Voltage, VC . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . 40V

Output Current (Each Output, Source or Sink)

Steady--State. . . . . . . . . . . . . . . . . . . . . . . . . . 500mA . . . . . . . . . . . . . . 500mA

Peak Transient. . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A . . . . . . . . . . . . . . . . 1.0A

Capacitive Discharge Energy . . . . . . . . . . . . . . 20 J. . . . . . . . . . . . . . . . . 15 J

Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V . . . . . . . . . . . . . . . . . 5.5V

Analog Stop Inputs . . . . . . . . . . . . . . . . . . . . . . . . . VIN. . . . . . . . . . . . . . . . . . VIN

Power Dissipation at TA = 25°C (See Note) . . . . . . . 2W . . . . . . . . . . . . . . . . . . 1W

Power Dissipation at T (Leads/Case) = 25°C . . . . . . 5W . . . . . . . . . . . . . . . . . . . 2

(See Note)

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . --55°C to +125°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . --65°C to +150°C

Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . . . 300°C

Note: All voltages are with respect to the four ground pins which must be connected

together. All currents are positive into, negative out of the specified trerminal. Consult

Packaging sections of the Databook for thermal limitations and considerations of package.

CONNECTION DIAGRAMS

DIL-16, SOIC-16 (TOP VIEW)

J or N Package, DW Package

PLCC-20, LCC-20 (TOP VIEW)

Q, L Packages

Note: All four ground pins must be connected to a common

ground.

ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = –55°C to +125°C for

the UC1706, –25°C to +85°C for the UC2706 and 0°C to +70°C for the UC3706; VIN = VC = 20V. TA = TJ.

PARAMETERS

VIN Supply Current

TEST CONDITIONS

MIN

TYP

MAX UNITS

VIN = 40V

VC Supply Current

VC Leakage Current

Digital Input Low Level

Digital Input High Level

Input Current

VC = 40V, Outputs Low

VIN = 0, VC = 30V, No Load

.05

0.1

0.8

2.2

VI = 0

–0.6

.05

–1.0

0.1

Input Leakage

VI = 5V

UC1706

UC2706

UC3706

ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = –55°C to +125°C for

the UC1706, –25°C to +85°C for the UC2706 and 0°C to +70°C for the UC3706; VIN = VC = 20V. TA = TJ.

PARAMETERS

Output High Sat., VC-VO

TEST CONDITIONS

MIN

TYP

MAX UNITS

IO = -50mA

2.0

Output Low Sat., VO

Inhibit Threshold

IO = 50mA

IO = 500mA

VREF = 0.5V

VREF = 3.5V

VREF = 0

0.4

2.5

0.6

3.7

–20

160

–20

0.4

3.3

Inhibit Input Current

Analog Threshold

Input Bias Current

Thermal Shutdown

–10

130

–10

155

VCM = 0 to 15V

VCM = 0

100

°C

TYPICAL SWITCHING CHARACTERISTICS: VIN = VC = 20V, TA = 25°C. Delays measured to 10% output change.

PARAMETERS

From Inv. Input to Output:

Rise Time Delay

TEST CONDITIONS

OUTPUT CL =

UNITS

open

1.0

130

2.2

110

140

10% to 90% Rise

Fall Time Delay

110

90% to 10% Fall

From N. I. Input to Output:

Rise Time Delay

120

130

140

10% to 90% Rise

Fall Time Delay

100

120

130

90% to 10% Fall

VC Cross-Conduction Current Spike Duration Output Rise

Output Fall

Inhibit Delay

Inhibit Ref. = 1V, Inhibit Inv. = 0.5 to 1.5V

Stop Non-Inv. = 0V, Stop Inv. = 0 to 0.5V

250

180

Analog Shutdown Delay

CIRCUIT DESCRIPTION

Outputs

Digital Inputs

The totem-pole outputs have been designed to minimize With both an inverting and non-inverting input available,

cross-conduction current spikes while maximizing fast, either active-high or active-low signals may be accepted.

high-current rise and fall times. Current limiting can be These are true TTL compatible inputs—the threshold is

done externally either at the outputs or at the common approximately 1.2V with no hysteresis; and external pull-

VC pin. The output diodes included have slow recovery up resistors are not required.

and should be shunted with high-speed external diodes

when driving high-frequency inductive loads.

Inhibit Circuit

Although it may have other uses, this circuit is included to

Flip/Flop

eliminate the need for deadband control when driving

relatively slow bipolar power transistors. A diode from

each inhibit input to the opposite power switch collector

will keep one output from turning-on until the other has

turned-off. The threshold is determined by the voltage on

pin 15 which can be set from 0.5 to 3.5V. When this cir-

cuit is not used, ground pin 15 and leave 1 and 16 open.

Grounding pin 7 activates the internal flip-flop to alter-

nate the two outputs. With pin 7 open, the two outputs

operate simultaneously and can be paralleled for higher

current operation. Since the flip-flop is triggered by the

digital input, an off-time of at last 200nsec must be pro-

vided to allow the flip/flop to change states. Note that the

circuit logic is configured such that the “OFF” state is de-

fined as the outputs low.

UC1706

UC2706

UC3706

CIRCUIT DESCRIPTION (cont.)

use with a 7 to 40V supply; however, with some slight re-

sponse time degradation, it can also be driven from 5V.

When VIN is low, the entire circuit is disabled and no cur-

rent is drawn from VC. When combined with a UC1840

PWM, the Driver Bias switch can be used to supply VIN to

the UC1706. VIN switching should be fast as if VC is

high, undefined operation of the outputs may occur with

VIN less than 5V.

Analog Shutdown

This circuit is included to get a latched shutdown as close

to the outputs as possible, from a time standpoint. With

an internal 130mV threshold, this comparator has a

common-mode range from ground to (VIN – 3V). When

not used, both inputs should be grounded. The time re-

quired for this circuit to latch is inversely proportional to

the amount of overdrive but reaches a minimum of

180nsec. As with the flip-flop, an input off-time of at least

200nsec is required to reset the latch between pulses.

Thermal Considerations

Should the chip temperature reach approximately 155°C,

a parallel, non--inverting input is activated driving both

outputs to the low state.

Supply Voltage

With an internal 5V regulator, this circuit is optimized for

APPLICATIONS

D1, D2; UC3611 Schottky Diodes

Power MOSFET Drive Circuit

Power MOSFET Drive Circuit Using Negative Bias Voltage and

Level Shifting to Ground Referenced PWMs

D1, D2: UC3611 Schottky Diodes

Transformer Coupled MOSFET Drive Circuit

Charge Pump Circuits

UC1706

UC2706

UC3706

APPLICATIONS (cont'd)

D1, D2: UC3611 Schottky Diodes

Transformer Coupled Push-Pull MOSFET Drive Circuit

Power Bipolar Drive Circuit

UC3706 Converts Single Output PWMs to High Current Push-Pull Configuration

UNITRODE CORPORATION

7 CONTINENTAL BLVD. • MERRIMACK, NH 03054

TEL. (603) 424-2410 • FAX (603) 424-3460

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed, except those mandated by government requirements.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF

DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL

APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR

WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER

CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO

BE FULLY AT THE CUSTOMER’S RISK.

In order to minimize risks associated with the customer’s applications, adequate design and operating

safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent

that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other

intellectual property right of TI covering or relating to any combination, machine, or process in which such

semiconductor products or services might be or are used. TI’s publication of information regarding any third

party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

UC1706 替代型号

型号	制造商	描述	替代类型	文档
UC3706	TI	Dual Output Driver	功能相似
UC2706	TI	Dual Output Driver	功能相似

UC1706 相关器件

型号	制造商	描述	价格	文档
UC1706DW	TI	2 CHANNEL, BUF OR INV BASED MOSFET DRIVER, PDSO16, 0.300 INCH, PLASTIC, SOIC-16	获取价格
UC1706J	TI	Dual Output Driver	获取价格
UC1706J/80891	TI	1A 2 CHANNEL, PUSH-PULL BASED MOSFET DRIVER, CDIP16, HERMETICALLY SEALED, CERAMIC, DIP-16	获取价格
UC1706J/80891	ROCHESTER	Push-Pull Based MOSFET Driver, 1A, BIPolar, CDIP16, HERMETICALLY SEALED, CERAMIC, DIP-16	获取价格
UC1706J883B	TI	具有 40V VDD 且每个输出均具有两个输入的 1.5A/1.5A 双通道栅极驱动器 \| J \| 16 \| -55 to 125	获取价格
UC1706L	TI	具有 40V VDD 且每个输出均具有两个输入的 1.5A/1.5A 双通道栅极驱动器 \| FK \| 20 \| -55 to 125	获取价格
UC1706L883B	TI	1.5A 2 CHANNEL, PUSH-PULL BASED MOSFET DRIVER, CQCC20, CERAMIC, LCC-20	获取价格
UC1707	TI	Dual Channel Power Driver	获取价格
UC1707-SP	TI	DUAL CHANNEL POWER DRIVER	获取价格
UC1707J	TI	DUAL CHANNEL POWER DRIVER	获取价格