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Número de pieza | L6208D | |
Descripción | FULLY INTEGRATED STEPPER MOTOR DRIVER | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
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February 2014
This is information on a product in full production.
L6208
DMOS driver for bipolar stepper motor
Datasheet - production data
Features
Operating supply voltage from 8 to 52 V
5.6 A output peak current (2.8 A RMS)
RDS(ON) 0.3 typ. value at Tj = 25 °C
Operating frequency up to 100 KHz
Non-dissipative overcurrent protection
Dual independent constant tOFF PWM current
controllers
Fast/slow decay mode selection
Fast decay quasi-synchronous rectification
Decoding logic for stepper motor full and half
step drive
Cross conduction protection
Thermal shutdown
Undervoltage lockout
Integrated fast freewheeling diodes
Applications
Bipolar stepper motor
Description
The L6208 device is a DMOS fully integrated
stepper motor driver with non-dissipative
overcurrent protection, realized in BCD
technology, which combines isolated DMOS
power transistors with CMOS and bipolar circuits
on the same chip. The device includes all the
circuitry needed to drive a two phase bipolar
stepper motor including: a dual DMOS full bridge,
the constant off time PWM current controller that
performs the chopping regulation and the phase
sequence generator, that generates the stepping
sequence. Available in PowerDIP24 (20 + 2 + 2),
PowerSO36 and SO24 (20 + 2 + 2) packages, the
L6208 device features a non-dissipative
overcurrent protection on the high-side Power
MOSFETs and thermal shutdown.
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1 page L6208
Maximum ratings
Table 3. Thermal data
Symbol
Description
PowerDIP24 SO24 PowerSO36 Unit
Rth-j-pins Maximum thermal resistance junction pins
18 14
- C/W
Rth-j-case
Rth-j-amb1
Rth-j-amb1
Rth-j-amb1
Rth-j-amb2
Maximum thermal resistance junction case
Maximum thermal resistance junction ambient(1)
Maximum thermal resistance junction ambient(2)
Maximum thermal resistance junction ambient(3)
Maximum thermal resistance junction ambient(4)
- - 1 C/W
43 51
- C/W
- - 35 C/W
- - 15 C/W
58 77 62 C/W
1. Mounted on a multilayer FR4 PCB with a dissipating copper surface on the bottom side of 6 cm2 (with a thickness
of 35 µm).
2. Mounted on a multilayer FR4 PCB with a dissipating copper surface on the top side of 6 cm2 (with a thickness of 35 µm).
3. Mounted on a multilayer FR4 PCB with a dissipating copper surface on the top side of 6 cm2 (with a thickness of 35 µm),
16 via holes and a ground layer.
4. Mounted on a multilayer FR4 PCB without any heat sinking surface on the board.
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5 Page L6208
Electrical characteristics
Figure 6. Minimum timing definition; logic inputs
CLOCK
Vth(ON)
LOGIC INPUTS
RESET
Vth(OFF)
Vth(ON)
tR(MIN)
tS(MIN)
tH(MIN)
tRCLK(MIN)
D01IN1319
Figure 7. Overcurrent detection timing definition
IOUT
ISOVER
ON
BRIDGE
OFF
VEN
90%
10%
tOCD(ON)
tOCD(OFF)
D02IN1399
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11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet L6208D.PDF ] |
Número de pieza | Descripción | Fabricantes |
L6208 | FULLY INTEGRATED STEPPER MOTOR DRIVER | STMicroelectronics |
L6208D | FULLY INTEGRATED STEPPER MOTOR DRIVER | STMicroelectronics |
L6208N | FULLY INTEGRATED STEPPER MOTOR DRIVER | STMicroelectronics |
L6208PD | FULLY INTEGRATED STEPPER MOTOR DRIVER | STMicroelectronics |
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