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L6280 Datasheet

THREE CHANNELS MULTIPOWER DRIVER SYSTEM

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L6280 pdf
L6280
THREE CHANNELS MULTIPOWER DRIVER SYSTEM
PROGRAMMABLE
(CHANNELS 1 AND 2)
CONFIGURATION
OUTPUT CURRENT UP TO 1A (CHANNELS
1 AND 2)
1 SENSE PER CHANNEL
OUTPUT CURRENT CHANNEL 3 UP TO 3A
DIRECT INTERFACE TO MICROPROCESSOR
C-MOS COMPATIBLE INPUT
INTERNAL DC-DC CONVERTER FOR LOGIC
SUPPLY (+5V)
POWER FAIL
WATCHDOG MANAGEMENT
THERMAL PROTECTION
VERY LOW DISSIPATED POWER (SUIT-
ABLE FOR USE IN BATTERY SUPPLIED AP-
PLICATIONS)
DESCRIPTION
The L6280 is a multipower driver system for motor
and solenoid control applicatios that connects di-
rectly to a microprocessor bus. Realized in Mul-
tipower BCD technology -- which combines isolated
DMOS transistors, CMOS & bipolar circuits on the
ADVANCE DATA
MULTIPOWER BCD TECHNOLOGY
PLCC44
ORDERING NUMBER: L6280
same chip -- it integrates two 1A motor drivers
(channels 1 & 2) a 3A solenoid driver (channel 3)
and a 5V switchmode power supply.
All of the drivers in the L6280 are controlled by a
microprocessor which loads commands and
reads diagnostic information, treating the device
as a peripheral. Channels 1 and 2 feature a pro-
grammable output DMOS transistor configuration
that can be set during the initialization phase.
Thanks to very low dissipation of its DMOS power
stages the L6280 needs no heatsink and is pack-
aged in a 44-lead PLCC package.
BLOCK DIAGRAM
January 1992
1/26
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.


STMicroelectronics Electronic Components Datasheet

L6280 Datasheet

THREE CHANNELS MULTIPOWER DRIVER SYSTEM

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L6280 pdf
L6280
PIN CONNECTION (top view)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VS Power Supply Voltage (Note A)
35 V
VSS Logic Supply Voltage
7V
V13 Pin 13 Input Voltage (Note B)
60 V
VDHS High Side Out Transistor Driving Voltage (Note B,C)
18 V
VO Output Voltage. CH1; CH2: Unipolar Motor Drive (Note D)
CH3
60 V
60 V
VOD Differential Output Voltage CH1; CH2; Full Bridge Configuration (Note E)
60
V
Vsense Sensing Voltage
-1 to 2
V
VI Logic Input Voltage
-0.3 to VSS +0.3
V
ILSD Low Side Driver Input Current
CH1; CH2 DC Operation
Peak (Note F)
CH3
DC Operation
Peak (Note G)
0.7 A
2A
3A
4.4 A
IHSD High Side Driver Onput Current
CH1; CH2 DC Operation
Peak (Note F)
CH3
DC Operation
Peak (Note G)
1A
2A
3A
4.4 A
ISSOUT
SMPS Output Current (Continuous)
(Peak; TON < 5ms)
1A
2A
IRES
Ptot
Tstg; Tj
Reset Output Open Drain Input Current
Total Power Dissipation atTamb = 70°C (Note H)
Storage an Junction Temperature Range
16
1.6
-40 to 150
mA
W
°C
Notes: A) D0 = D1 = D2 = D3 =0; B) V13 = VS + VDHS; C) At 20V > VDHS > 17V the input current at pin 13 must be < 30mA;
D) D0 = 1; D1 = D2 = D3 = 0; E) D1 = 1; D0 = X; D2 = D3 = 0; F) The pulse width must be < 5ms and the Duty Cycle must be < 10%
G) The pulse width must be <5ms and the Duty Cycle must be < 6%; H) mounted on board with minimized dissipating copper area.
THERMAL DATA
Symbol
Description
Rth j-pins Thermal Resistance Junction-pins
Rth j-amb Thermal Resistance Junction-ambient (*)
(*) Mounted on board with minimized dissipating copper area.
Max.
Max.
Value
12
50
Unit
°C/W
°C/W
2/26


Part Number L6280
Description THREE CHANNELS MULTIPOWER DRIVER SYSTEM
Maker STMicroelectronics
Total Page 26 Pages
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