ST TD310 User Manual

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TD310

TRIPLE IGBT/MOS DRIVER WITH CURRENT SENSE

■ THREE POWER IGBT/MOS AND PULSE

TRANSFORMER DRIVERS

■ CURRENT SENSE COMPARATOR

■ UNCOMMITTED OP-AMP

■ 0.6 A PER CHANNEL PEAK OUTPUT

CURRENT CAPABILITY

■ LOW OUTPUT IMPEDANCE TYP: 7Ω AT

200mA

■ CMOS/LSTTL COMPATIBLE INVERTING

INPUT WITH HYSTERESIS

■ 4V TO 16V SINGLE SUPPLY OPERATION

■ LOW BIAS CURRENT TYP: 1.5mA

■ ADJUSTABLE UNDERVOLTAGE LOCKOUT

LEVEL

■ STAND-BY MODE

■ CHANNE L PARALLELING CAPABI LITY

DESCRIPTION

The TD310 is designed t o drive one, two or th ree
Power IGBT/MOS and has driving capability for
pulse transformer. So it is perfectly suited to
interface control IC with Power Switches in low
side or half-b ridge config uration.

N

DIP-16

(Plastic Package)

D

SO-16

(Plastic Micropacka ge)

ORDER CODE

Part Number Temperature Range

TD310I -40°C, +125°C

N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)

Package

ND

••

PIN CONNECTIONS (top view)

TD310 includes a current sense comparator which
inhibit the output drivers in case of overcurrent. An
alarm output signals the even to a controller.

TD310 also includes an uncommitted op-amp
which can be u sed for current measurement (as
an amplifier before the A/D input of a
microcontroller) of for other general purpose.

Programmable undervo ltage lockout and standby
mode make TD310 suitable for a large area of
environment and application.

Typical applications are low side IG BT and power
MOSFET drive in three phase systems, pulse
transformer drive, and general purpose pulse
drive.

December 2001

VCC

Enable

Alarm
OA Output
OA Input + Sense +

INA
INB

INC

1
2
3
4
5
6
7

16
15
14
13
12
11
10

98

UVLO/Stb
OUTA
OUTB
OUTC
Gnd
Sense ­OA Input -

1/9

TD310

BLOCK DIAGRAM

VCC

Stby

INA

INB

INC

Enable

Alarm

OA output

1.26M

140k

GND

VCC

GND

0.7V

1.2V

Standby

UVLO

Control

Unit

Standby

TD310

OUTA

OUTB

OUTC

Sense+
Sense -

OA input +
OA Input-

GND

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

T

Supply Voltage 18 V

CC

V

Input Voltage

i

V

Sense Input Voltage

is

T

Operating Junction Temperature -40 to 150 °C

j

Operating Ambient Temperature -40 to 125 °C

amb

0 to V

-0.3 to V

CC

CC

V
V

OPERATING CONDITIONS

Symbol Parameter Value Unit

V

Supply Voltage 4 to 16 V

CC

INSTRUCTION FOR USE

1 - The TD310 supply voltage must be decoupled with a 1µF min. capacitor.
2 - If the application involv ing TD310 requires m aximum output current capa bility, this current must be

pulsed: pulse width 1µsec, duty cycle 1% at T

2/9

amb.

TD310

ELECTRICAL CHARACTERISTICS

V

= 15V, T

CC

= 25°C (unless otherwise specified)

amb

Symbol Parameter Min. Typ. Max. Unit

I

Supply Current with Inputs in High State 1.5 2 mA

CC

LOGIC INPUT (all inputs)

V

High Input Voltage 2 V

IH

V

Low Input Voltage 0.8 V

IL

I

High Input Current 10 pA

IH

I

Low Input Current 10 pA

IL

Propagation Delay (10% input to 10% output)

t

dH

tdL, t

t

, t

eL

eH

t

li

dd

Output Delay
Output Delay

≤ Tamb ≤ T

T

min.

max.

Input Inhibiting Time 100 ns
Differential Delay Time Between Channels 20 ns

OUTPUT DRIVERS

V

V

V
R

Sourcing Drop Voltage (A/B/C outputs)

sod

sid

dem

opd

I

= 200mA

source

Sinking Drop Voltage (A/B/C outputs)

Isink = 200mA

Demagnetizing Drop Voltage (A/B/C outputs)

Idemag. = 100mA

Output Pull Down Resistor 47 k

ALARM OUTPUT

Low Level Sinking Current

I

s

I

sh

t

A

V

= 0.8V

O

High Level Sinking Current 1
Alarm Output : Delay Time to Alarm Fall if Sense Input Triggered 500 ns

SENSE INPUT

V

V

Input Offset Voltage 20 mV

ios

t

Inhibition Time if Sense Input Triggered 1 ms

Ai

Delay Time to Output Fall if Sense Input Triggered

t

s

t

si

shys

All outputs inhibited
Inhibition Time of Sense Input 300 ns
Sense Hysteresis 40 mV

OPERATIONAL AMPLIFIER

V

GBP Gain Bandwidth Product 1 MHz

Common Mode Input Voltage Range

icm

V

Input Offset Voltage 10 mV

io

A

Open Loop Gain 60 dB

vd

Slew Rate at Unity Gain (R

SR

= 100kΩ, CL = 100pF, Vi = 3 to 7V)

L

STAND-BY

V

I

Standby Mode Threshold Voltage 0.3 1.1 V

stdby

Standby Mode Supply Current 30

stdby

UNDER VOLTAGE LOCKOUT

I

Under Voltage Level Adjust Current 1

adj

V

V

Internal Stop Threshold (without external adjustment) 10.7 13.3 V

st1

Threshold Hysteresis 0.8 V

hys

200

60

400
400

3V

5V

2V

535 mA

600 ns

CC

+

- 1.5

0 to V

0.6 V/µs

µ

ns

Ω

A

µ

V

A

µ

A/V

3/9

TD310

UVLO/stdby pin functioning modes

Due to the wide supply voltage range o f the TD310, the UVLO function (Under Voltage Lock Out) is
externally adjustable by a resistor bridge.

The bridge rate can be calculated in relation with the expected UVLO protection level as follows :

R1

V

UVLO

The internal resistor sets the default UVLO value to 12V (*) and might influence the external bridge rate if
the values of the external resistors are too high. Moreover, the internal resistor ratio is accurate, but the
the tolerance on the absolute value of each internal resistor (typically 140k and 1.26M) is about +/-20%.
If an external bridge is used, we recommend to choose resistor values not greater than 10k.

The standby threshold value depends of the UVLO value as follows:

-------------------- -

x = 1.2V (where R1 is the lower resistor of the bridge)

R1 R2+

stdby

=

0.7

/

1.2

V

UVLO

+

via a pull up

CC

V

Both UVLO and stdby functions can be inhibited by connec ting the UVLO/stdby pin to V
resistor (ex 150kΩ).

The following table summarizes the functions of the TD310 :

Pin 16 9/11 5 2/3/4 15/14/13 6 7/8/10

Config

Normal 1 H

Stdby 2 L

UVLO 3 M X X X L L OK H

UVLO/

stdby

Sense+/

Sense-

+ > - X X L L

+ < -

+ > ­+ < - H

Enable In A/B/C Out A/B/C Alarm Op-Amp

HIN IN

LX L

XX L

H

L

OK

HZ

Con-

sumption

H

(1.5mA)

L

(30µA)

Configuration 1 : UVLO/stdby = H
The TD310 is in a normal consumption state (1.5mA), the operational amplifier is normally functioning and

the buffer outputs are determined by the sense comparator inputs, the enable inputs and the buffer inputs.
Configuration 2 : UVLO/stdby = L
The TD310 is in a low consumption state (standby mode 30µA), the buffer outputs are set to low state and

the operational amplifier is in high impedance state.
Configuration 3 : UVLO/stdby = M
The VCC supply voltage is between VUVLO and Vstdby (**). The TD310 remains in a normal

consumption state an d the operational amplifier is normally fu nctioning but the buffer outputs and the
alarm pin are set to low state.

(*) If the UVLO level remains unadjusted, it is recommended to bypass the UVLO/stdby pin with a 1nF capacitor.
(**) If the supply voltage falls below V

4/9

, the TD310 is set in standby mode (configuration 2).

stdby

TIMING DIAGRAM

TIMING 1

Input

A/B/C

tdH

Output

A/B/C

TIMING 2

Input

A/B/C

TD310

tli

tdL

Output

A/B/C

Sense

Alarm

Enable

Under

Voltage

ts

tAi

tA

tAi

teL

teH

5/9

TD310

TYPICAL APPLICATIONS
Figure 1 : HALF BRIDGE DRIVE IN THREE PHASE MOTOR SYSTEM

VCC

MCU signals

Pulse controlled inputs

ON
OFF

Level controlled input

Stby

INA

INB

INC

Enable

Alarm

TD310

OA output

VCC

UVLO

Standby

LOGIC

OUTA
OUTB
OUTC

Sense+
Sense -

OA input +
OA Input-

Pulse transf

VCC

High voltage

LOA D

Shunt

GND

GND

6/9

Figure 2 : THREE PHASE MOTOR LOW SIDE DRIVE

TD310

+400V

MICRO

CONTROLLER

HS

STBY

A
B
C

En

IT

ANA

Stby

INA

INB

INC

Enable

Alarm

OA output

Figure 3 : LOW SIDE DRIVE

High Side

Standby

LOGIC

TD310

GND

Driver

VCC

VCC

UVLO

OUTA
OUTB
OUTC

Sense+
Sense -

OA input +
OA Input-

M

VCC

Shunt

GND

Stby

INA

INB

INC

Enable

Alarm

OA output

Standby

LOGIC

TD310

GND

VCC

UVLO

VCC

OUTA
OUTB
OUTC

Sense+
Sense -

OA input +
OA Input-

LOAD LOAD LOAD

VCC

Shunt

GND

7/9

TD310

PACKAGE MECHANICAL DATA
16 PINS - PLASTIC DIP

Dim.

Min. Typ. Max. Min. Typ. Max.

a1 0.51 0.020

B 0.77 1.65 0.030 0.065
b 0.5 0.020

b1 0.25 0.010

D 20 0.787
E 8.5 0.335
e 2.54 0.100

e3 17.78 0.700

F 7.1 0.280

i 5.1 0.201
L 3.3 0.130
Z 1.27 0.050

Millimeters Inches

8/9

PACKAGE MECHANICAL DATA
16 PINS - PLASTIC MICROPACKAGE (SO)

TD310

Dim.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 1.75 0.069

a1 0.1 0.2 0.004 0.008
a2 1.6 0.063

b 0.35 0.46 0.014 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.020

c1 45° (typ.)

D 9.8 10 0.386 0.394
E 5.8 6.2 0.228 0.244
e 1.27 0.050

e3 8.89 0.350

F 3.8 4.0 0.150 0.157
G 4.6 5.3 0.181 0.209
L 0.5 1.27 0.020 0.050

M 0.62 0.024

S 8° (max.)

Information furnished is bel ieved to be accurate and reliable. However, STMicroe lectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No li cense is granted by i mp lication or otherwise under any patent or pate nt rig hts of STMicroelectronics. S pec ific at ions
mentioned in this publication ar e subject to change without notice. This publication supersedes and replaces all information
previously supplied. S TMicroelectronics products are not authorized for use as critica l components in life suppo rt devices or
systems without express written approval of STMicroelectronics.

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© 2001 STM icroelectronics - P r inted in Italy - All Righ ts Reserv ed

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