UNITRODE UC1705, UC2705, UC3705 Technical data

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High Speed Power Driver

FEATURES

1.5A Source/Sink Drive

•

100 nsec Delay

•

40 nsec Rise and Fall into

•

1000pF Inverting and Non-Inverting

•

Inputs Low Cross-Conduction Current

•

Spike Low Quiescent Current

•

5V to 40V Operation

•

Thermal Shutdown Protection

•

• MINIDIP and Power Packages

DESCRIPTION

The UC1705 family of power drivers is made with a high speed Schottky pro cess to interface between low-level control functions and high-power switching devices - particularly power MOSFETs. These devices are also an optimum choice for capacitive line drivers where up to 1.5 amps may be switched in ei ther direction. With both Inverting and Non-Inverting inputs available, logic sig nals of either polarity may be accepted, or one input can be used to gate or strobe the other.

Supply voltages for both V For additional application details, see the UC1707/3707 data sheet.

The UC1705 is packaged in an 8-pin hermetically sealed CERDIP for -55°C to +125°C operation. The UC3705 is specified for a temperature range of 0°C to +70°C and is available in either a plastic minidip or a 5-pin, power TO-220 package.

application

INFO

available

S and VC can independently range from 5V to 40V.

UC1705 UC2705 UC3705

TRUTH TABLE

INV N.I OUT

OUT = INV and N.I. OUT

= INV or N.I.

H H

L L

BLOCK DIAGRAM

CONNECTION DIAGRAMS

DIL-8 MINIDIP, SOIC-8

L L

(TOP VIEW) N or J Package, D Package

5-PIN TO-220 (TOP VIEW) T Package

JANUARY 1994 - REVISED AUGUST 2000 - SLUS370A

UC1705 UC2705 UC3705

ABSOLUTE MAXIMUM RATINGS

N-Pkg J-Pkg T-Pkg

Supply Voltage, V

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

Output Current (Source or Sink)

Steady-State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±500mA. . . . . . . . . . . . . . . . ±500mA. . . . . . . . . . . . . . . . . ±1.0A

Peak Transient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.5A. . . . . . . . . . . . . . . . . . ±1.0A. . . . . . . . . . . . . . . . . . ±2.0A

Capacitive Discharge Energy . . . . . . . . . . . . . . . . . . . . . . 20µJ. . . . . . . . . . . . . . . . . . . . 15µJ. . . . . . . . . . . . . . . . . . . . 50µJ

Digital Inputs (See Note) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V. . . . . . . . . . . . . . . . . . . 5.5V. . . . . . . . . . . . . . . . . . . 5.5V

Power Dissipation at T Power Dissipation at T

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . 0°C to +70°C . . . . . . . . . . -55°C to +125°C . . . . . . . . . . 0°C to +70°C

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

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

Note: All currents are positive into, negative out of the specified terminal.

Digital Drive can exceed 5.5V if input current is limited to 10mA Consult Packaging Section of Databook for thermal limitations and considerations of package.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . . 40V

= 25°C (See Note) . . . . . . . . . . . . . . 1W. . . . . . . . . . . . . . . . . . . . 1W. . . . . . . . . . . . . . . . . . . . 3W

(Leads/Case) = 25°C (See Note) . . . 3W. . . . . . . . . . . . . . . . . . . . 2W . . . . . . . . . . . . . . . . . . . 25W

ELECTRICAL CHARACTERISTICS:

Unless otherwise stated, these specifications apply for T

A = -55°C to +125°C for

the UC1705, -25°C to +85°C for the UC2705, and 0°C to +70°C for the UC3705; VS = VC = 20V, TA =TJ.

PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS

S Supply Current VS = 40V, (Outputs High, T Pkg) 6 8 mA

S = 40V, (Outputs Low, T Pkg) 8 12 mA

C Supply Current (N, J Only) VC = 40V, Outputs Low 2 4 mA

C Leakage Current (N, J Only) VS = 0, VC = 30V 0.05 0.1 mA

Digital Input Low Level 0.8 V

Digital Input High Level 2.2 V

Input Current V

Input Leakage V

Output High Sat., V

Output Low Sat., V

C-VO IO = -50mA 2.0 V

O IO = 50mA 0.4 V

I = 0 -0.6 -1.0 mA I = 5V 0.05 0.1 mA

O = -500mA 2.5 V

O = 500mA 2.5 V

Thermal Shutdown 155 °C

TYPICAL SWITCHING CHARACTERISTICS:

VS = VC = 20V, TA = 25°C. Delays measured to 10% output change.

PARAMETERS TEST CONDITIONS OUTPUT CL = UNIT

From Inv. Input to Output:

open 1.0 2.2 nF Rise Time Delay 60 60 60 ns 10% to 90% Rise 20 40 60 ns Fall Time Delay 60 60 60 ns 90% to 10% Fall 25 40 50 ns

From N. I. Input to Output:

Rise Time Delay 90 90 90 ns 10% to 90% Rise 20 40 60 ns Fall Time Delay 60 60 60 ns 90% to 10% Fall 25 40 50 ns

C Cross-Conduction

V Current Spike Duration

Ouput Rise 25 ns Output Fall 0 ns

APPLICATIONS

Power MOSFET Drive Circuit

UC1705 UC2705 UC3705

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

D1, D2: UC3611 Schottky Diodes

UNITRODE CORPORATION 7 CONTINENTAL BLVD. • MERRIMACK, NH 03054 TEL. 603-424-2410 • FAX 603-424-3460

PACKAGE OPTION ADDENDUM

www.ti.com

18-Oct-2005

PACKAGING INFORMATION

Orderable Device Status

(1)

Package

Type

Package Drawing

Pins Package

Qty

Eco Plan

5962-9579801M2A ACTIVE LCCC FK 20 1 TBD POST-PLATE Level-NC-NC-NC 5962-9579801MPA ACTIVE CDIP JG 8 1 TBD A42 SNPB Level-NC-NC-NC 5962-9579801VPA ACTIVE CDIP JG 8 1 TBD A42 Level-NC-NC-NC

UC1705J ACTIVE CDIP JG 8 1 TBD A42 SNPB Level-NC-NC-NC UC1705J883B ACTIVE CDIP JG 8 1 TBD A42 SNPB Level-NC-NC-NC UC1705L883B ACTIVE LCCC FK 20 1 TBD POST-PLATE Level-NC-NC-NC

UC2705D ACTIVE SOIC D 8 75 Green (RoHS &

no Sb/Br)

UC2705J ACTIVE CDIP JG 8 1 TBD A42 SNPB Level-NC-NC-NC

UC2705N ACTIVE PDIP P 8 50 Green (RoHS &

no Sb/Br)

UC3705D ACTIVE SOIC D 8 75 Green (RoHS &

no Sb/Br)

UC3705DTR ACTIVE SOIC D 8 2500 Green (RoHS &

no Sb/Br)

UC3705DTRG4 ACTIVE SOIC D 8 2500 Green (RoHS &

no Sb/Br)

UC3705J ACTIVE CDIP JG 8 1 TBD A42 SNPB Level-NC-NC-NC

UC3705N ACTIVE PDIP P 8 50 Green (RoHS &

no Sb/Br)

UC3705NG4 ACTIVE PDIP P 8 50 Green (RoHS &

no Sb/Br)

UC3705T ACTIVE TO-220 KC 5 50 Green (RoHS &

no Sb/Br)

UC3705TG3 ACTIVE TO-220 KC 5 50 Green (RoHS &

no Sb/Br)

(1)

The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in

a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.

(2)

Lead/Ball Finish MSL Peak Temp

CU NIPDAU Level-2-260C-1 YEAR

CU NIPDAU Level-NC-NC-NC

CU NIPDAU Level-2-260C-1 YEAR

CU NIPDAU Level-NC-NC-NC

CU SN Level-NC-NC-NC

(3)

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements

for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder

temperature.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited

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