Datasheet 5962-9579801MPA Datasheet (Texas Instruments)

UC1705
UC2705
UC3705

TRUTH TABLE

INV N.I OUT

H

L

H

L

H
H

L
L

L

H

L
L

OUT = INV and N.I.
OUT = INV or N.I.

High Speed Power Driver

FEATURES

• 1.5A Source/Sink Drive

• 100 nsec Delay

• 40 nsec Rise and Fall into

1000pF

• Inverting and Non-Inv erting
Inputs

• Low Cross-Conduction Current
Spike

• Low Quiescent Current

• 5V to 40V Operation

• Thermal Shutdown Protection

• MINIDIP and Power Packages

CONNECTION DIAG RAMS

BLOCK DIAGRAM

DESCRIPTI ON

The UC1705 family of p ower drivers is made with a high speed Schottky proc­ess 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
either direction. With both Inverting and Non-Inverting inputs available, logic
signals o f either polarity may be accepted, or one input can be used to gate or
strobe the other.

Supply voltages for both V

S and VC can independ ently range from 5V to 40V.

For additional application details, see the UC1707/3707 data sheet.
The UC1705 is packaged i n an 8-pin hermetically sealed CERDIP for -55°C to

+125°C operation. The UC3705 i s spe cified for a temperature rang e of 0°C to
+70°C and is available in either a plastic minidip or a 5-pin, power TO-220
package.

DIL-8 MINIDIP, SOIC-8
(TOP VIEW)
N or J Package, D Package

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

1/94

ABSOLUTE MAXI MUM RATING S

N-Pkg J-Pkg T-Pkg

Supply Voltage, V

IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V. . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . . 40V

Collector Supply Voltage, V

C . . . . . . . . . . . . . . . . . . . . . . . . . 40V. . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . . 40V

Output Current (Source or Sink)

Steady-St ate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±500mA. . . . . . . . . . . . . . . . ±500mA. . . . . . . . . . . . . . . . . ±1.0A

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

Capacitiv e D ischar ge Energy . . . . . . . . . . . . . . . . . . . . . . 20 µ J . . . . . . . . . . . . . . . . . . 15µJ . . . . . . . . . . . . . . . . . . 50µJ

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

Power Dissipation at T

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

Power Dissipation at T

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

Operating Temper at ure Range . . . . . . . . . . . . . . . . . . . . 0°C to +70°C. . . . . . . . . . -55°C to +125°C . . . . . . . . . . 0°C to +70°C

Storage Temper at ure Ra nge . . . . . . . . . . . . . . . . . . . . -65°C to +150°C . . . . . . . . -65°C to +150°C . . . . . . . . . -65°C to +150°C

Lead Temp erature (Soldering, 1 0 seconds). . . . . . . . . . . . . 300°C. . . . . . . . . . . . . . . . . . 300°C . . . . . . . . . . . . . . . . . 300°C

Note: All currents are pos itive int o, nega tive out of the sp ecif ied te rminal.

Digital Drive can exceed 5. 5V if input cur rent is limited to 10m A
Consult Packag in g Sect ion of Dat aboo k for ther ma l limitations an d cons id era tion s of packa ge.

UC1705
UC2705
UC3705

TYPICAL SWITCHI NG CHARACTERI ST ICS :

PARAMETERS TEST CONDITION S 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
V

C Cross-Conduction

Current Spike Duration

Ouput Rise 25 ns
Output Fall 0 ns

PARAMETERS TEST CONDITION S MIN TYP MAX UNITS

V

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

V

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

V

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

V

C Leakage Current (N, J On ly ) VS = 0, V C = 30V .05 0.1 mA

Digital Input Low Level 0.8 V
Digital Input High Level 2.2 V
Input Current V

I = 0 -0.6 -1.0 mA

Input Leakage V

I = 5V 0.5 0.1 mA

Output High Sat., V

C-VO IO = -50mA 2.0 V

I

O = -500mA 2.5 V

Output Low Sat., V

O IO = 50mA 0.4 V

I

O = 500mA 2.5 V

Thermal Shutdown 155 °C

V

S = VC = 20V, TA

= 25°C. Delays measured to 10% output chan ge.

Unless otherwise stated , thes e specificat ions 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; V

S = VC

= 20V, TA = TJ.

ELECTRICAL CHARACTERISTICS:

2

UC1705
UC2705
UC3705

APPLICATIONS

UNITRODE INTEGRATED CIRCUITS
7 CONTINENTAL BLVD. •• MERRIMACK NH 03054
TEL. [phone] • FAX [phone]

D1, D2: UC3611 Schottky Diodes

D1, D2: UC3611 Schottky Diodes

D1, D2: UC361 1 Schottky Diodes

Transformer Coupled MOSFET Drive Circuit Charge Pump Circuits

Power MO SFET Drive Circuit

Power MOSFET Drive Circu it usi ng Negat ive Bias Voltage and Level

Shifti ng to Ground Referenced PWMs.

3

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