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L6204
DMOS DUAL FULL BRIDGE DRIVER
ADVANCE DATA
SUPPLYVOLTAGEUP TO 48V
DS(ON)
1.2Ω (25°C)
R
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOWN
0.5A DC CURRENT
TTL/CMOSCOMPATIBLEDRIVER
HIGHEFFICIENCYCHOPPING
DESCRIPTION
The L6204 is a dual full bridge driver for motor
control applications realized in BCD technology
which combines isolated DMOS power transistors
with CMOS and Bipolar circuitson the same chip.
By using mixed technologyit has been possible to
optimizethe logic circuitry and the power stage to
achievethe best possibleperformance.
The logic inputs are TTL/CMOS compatible. Both
channelsare controlled by a separate Enable.
Each bridge has a sense resistor to control the
currenrt level.
BLOCK DIAGRAM
MULTIPOWERBCD TECHNOLOGY
Powerdip 16+2+2 SO 24+2+2
ORDERING NUMBERS:
L6204 L6204D
The L6204 is mounted in an 20-lead Powerdip
and SO 24+2+2 packages and the four center
pins are used to conduct heat to the PCB. At normal operating temperatures no external heatsink
isrequired.
March 1994
This isadvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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L6204
PIN CONNECTIONS (Topview)
POWERDIP
PIN FUNCTIONS
SO
DIP
Pin
Pin
(*)
1
1
2
2
3
3
4
6
5
7
6
8
7
9
8
12
9
13
10
14
11
15
12
16
13
17
14
20
15
21
16
22
17
23
18
26
19
27
20
28
(*) For SOpackage the pins 4, 5, 10, 11, 18, 19, 24 and 25 arenot connected.
ABSOLUTE MAXIMUM RATINGS
Symbols Functions
SENSE 1
IN1
ENABLE 1
OUT 1
GND
GND
OUT 3
ENABLE 2
IN 3
SENSE 2
BOOSTRAP OSC. VCP
IN 4
OUT 4
V
2
S
GND
GND
V
1
S
OUT 2
IN 2
VBOOT
Sense resistorto providethe feedback for motor current control of the bridge A
Digital input from the motor controller (bridge A)
A logic level low on this pin disable the bridge A
Output ofone half bridge of the bridge A
Common Power Ground
Common Power Ground
Ouput of one half bridge of the bridge B
A logic level low on this pin disable the bridge B
Digital input from the motor controller (bridge B)
Sense resistorto providethe feedback for motor current control of the bridge B
Oscillator output for the external charge pump
Digital input from the motor controller (bridge B)
Output ofone half bridge of the bridge B
Supply voltage bridge B
Common Power Ground
Common Power Ground
Supply Voltage bridge A
Output ofone half bridge of the bridge A
Digital input from the motor controller (bridge A)
Overvoltage input for driving of the upper DMOS
SO24+2+2
Symbol Parameter Test Conditions Unit
V
V
IN,VEN
V
SENSE
V
BOOT
P
T
stg,Tj
Supply Voltage 50 V
S
Input or Enable Voltage Range -0.3 to +7 V
Pulsed Output Current 3 A
I
o
Sensing Voltage -1 to 4 V
Bootstrap Supply 60 V
Total power dissipation: (T
tot
Total power dissipation: (T
Total power dissipation: (T
=80°C)
pins
=70°C no copper area on PCB)
amb
=70°C 8cm2copperarea on PCB)
amb
5
1.23
2
Storage and Junction Temperature -40 to 150 °C
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W
W
W
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THERMAL DATA
Symbol Description SO DIP Unit
R
th j-pins
R
th j-amb
Thermal Resistance Junction-pins
Thermal Resistance Junction-ambient
Max
Max
16
73
14
65
ELECTRICALCHARACTERISTICS (VS= 42V, Tj=25°C unless otherwisespecified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
I
f
T
T
Supply Voltage 12 48 V
S
Total Quiescent Current EN1=EN2=H;IN1=IN2=IN3=IN4=L
S
EN1 = EN2 = L
Commutation Frequency 20 KHz
C
Thermal Shutdown 150 °C
J
Dead Time Protection 500 ns
d
10
10
TRANSISTORS
L6204
°C/W
°C/W
mA
mA
I
R
DSS
Leakage Current OFF 1 mA
On Resistance ON 1.2 Ω
DS
LOGICLEVELS
V
INL,VENL
V
INH,VENH
I
INL,IENL
I
INH,IENH
Input Low Voltage -0.3 0.8 V
Input High Voltage 2 7 V
Input Low Current IN1=IN2=IN3=IN4=EN1 =EN2=L -10 µA
Input High Current IN1=IN2 =IN3=IN4=EN1=EN2=H 50 µA
APPLICATION DIAGRAM
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