sla6860m Allegro MicroSystems, Inc., sla6860m Datasheet

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sla6860m

Manufacturer Part Number
sla6860m
Description
High Voltage Sla6860m And Sma6860m Series Driver Ics For 3-phase Dc Motor Applications
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
Introduction
The SLA6860M and SMA6860M Series consists of inverter
power module (IPM) devices that integrate within a single,
compact package: power MOSFETs, pre-driver ICs, and fast
recovery diodes. These products are especially suitable for
driving the inverters of low-capacity motors, such as those
used in 100 to 200 V fans or pumps for air conditioners.
Features and benefits include the following:
▪ Three built-in bootstrap fast recovery diodes (FRD),
▪ Overcurrent limiting (OCL) function, with fault signal
▪ Built-in overcurrent protection (OCP) function; when an
▪ Optional automatic shutdown of high-side and low-side
▪ Built-in overtemperature protection for both high-side
Product Lineup
28610.14, Rev. 1
SMA6863M*
*SMA6863M and SLA6868M are electrically identical, the only
difference is that SMA6868M has a heatsink tab (leadform 2171).
SLA6868M*
SMA6861M
SMA6862M
each with current-limiting resistor, and capable of
withstanding high voltages: 600 V at 1 A
output and shutdown input terminal; when the user-
determined maximum current level is exceeded, PWM
on-off cycling is initiated to effectively limit current
overcurrent condition, such as an output short circuit, is
detected, the internal high-side and low-side logic ICs
shut down the output driver gates and issue a fault signal
gates if an abnormal condition occurs (overtemperature,
overcurrent, undervoltage on control power supply, and
so forth); enabled by connecting together the SD1 and
SD2 terminals
and low-side circuits; thermal shutdown (TSD) occurs
when the temperature of the logic chips exceed a user-
determined value, the internal high-side and low-side
logic ICs shut down the output driver gates and issue a
fault signal
Type
500 V / 1.5 A
500 V / 2.5 A
500 V / 2.5 A
250 V / 2 A
MOSFET
Rating
FAN Motor, Pump
FAN Motor, Pump
High Voltage SLA6860M and SMA6860M Series
Application
FAN Motor
FAN Motor
Driver ICs for 3-Phase DC Motor Applications
Voltage
(VAC)
Input
120
230
230
230
Leadform 2452
Figure 1. SMA6860M Series packages are SIPs, offering compact
configurations both with heatsink pad (leadforms 2171 and 2175)
and without (leadforms 2451 and 2452). Both horizontal mount and
vertical mount are available.
▪ Built-in undervoltage lockout (UVLO) protection for
▪ Alarm signal (shutdown) output when protection circuits
Leadform 2451
each control power supply, VCC1, VCC2, and VBx;
when voltage falls below a set value, the gates are shut
down and VCC1 and VCC2 output an alarm signal
enable; high-side faults (UVLO and TSD) are signaled
on the SD1 terminal, low-side faults (TSD, OCP, and
UVLO) are signaled on the SD2 terminal
Introduction
Functional Description
Terminal Descriptions
Protection Functions
Typical Applications
Protection Function Timing
Application Circuit Recommendations
Electrical Characteristics Data
Product Information
Contents
Leadform 2171
Leadform 2175
17
18
18
11
1
2
3
7

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sla6860m Summary of contents

Page 1

... High Voltage SLA6860M and SMA6860M Series Driver ICs for 3-Phase DC Motor Applications Introduction The SLA6860M and SMA6860M Series consists of inverter power module (IPM) devices that integrate within a single, compact package: power MOSFETs, pre-driver ICs, and fast recovery diodes. These products are especially suitable for driving the inverters of low-capacity motors, such as those used in 100 to 200 V fans or pumps for air conditioners ...

Page 2

... LIN3 COM2 SD2 OCL RC Figure 2. SLA6860M/SMA6860M Series Phase Block Diagram. These devices support high-side and low-side three-phase MOSFET output drivers. MOSFET turns nected between VB1 and U, VB2 and V, and VB3 and W1, as the high voltage power source. The protection functions, including overcurrent protection ...

Page 3

... Low side GND terminal Low side shutdown input and overtemperature, overcurrent, and UVLO fault signals output Low side logic supply voltage Output of U phase Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com exceeds 20 V, permanent damage may occur ...

Page 4

... A 0.6 +0.15 – 0.05 31.3 ±0.1 31 ±0.2 24.4 ±0.2 16.4 ±0.2 0.6 Ø3.2 ±0.15 16 ±0.2 12.9 ±0.2 9.9 ±0.1 0.6 +0.2 1.27 ±0.2 A – 0.1 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 4.8 ±0.2 1.7 ±0.1 2.45 ±0.2 B BSC Exposed heatsink pad R1 REF 5 ±0.5 +0.2 0.55 – 0.1 4.5 REF 4.5 ±0.7 4.8 ±0.2 1.7 ±0.1 2.45 ± ...

Page 5

... LF2452, vertical mount; no heatsink pads. 1.2 ±0.1 BSC 10.2 ±0.2 3 ±0.5 BSC 2.2 ±0.7 BSC 4.4 REF A 1.27 ±0.1 2.2 ±0.7 BSC 0.6 +0.15 1.27 ±0.6 B – 0.05 1.2 ±0.1 BSC 10.2 ±0.2 5 ±0.5 9.5 +0.7 – 0.5 0.5 +0.15 – 0.05 4.5 REF 1.27 ±0.5 A 0.6 +0.15 – 0.05 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 4 ±0.2 R1 REF 0.55 +0.2 – 0.1 4 ±0.2 R1 REF 4.5 ±0.5 5 ...

Page 6

... Adding a series resistor VBB VBx V BB CBOOTx U,V,W To Motor LSx Figure 5. HINx and LINx Terminals Internal Equivalent Circuit Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com , when the low-side MOSFETs OFF and the recommended OFF C (μF) ≥ t (ms) ...

Page 7

... SD1 and COM1, the high-side MOSFETs are turned off completely. Furthermore, after a short-circuit between SD1 and R2 OCP – release + C2 Comparator Figure 7. SD2 Terminal Internal Equivalent Circuit Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 50 Ω during OCP To Shutdown SD2 Filter 3.3 μ ...

Page 8

... Protection Functions This section describes in detail the various device protection features provided with the SLA6860M and SMA6860M. Undervoltage Lockout (UVLO) on Control Power Supply When the gate-driving voltages on the output MOSFETs become too low, the losses of the power MOSFETs increase, and in the worst case the circuits may be damaged ...

Page 9

... TSD Hysteresis Hys – Overtemperature Protection (TSD) A thermal shut- down (TSD) protection circuit is built in for the SLA6860M- SMA6860M Series. In the event of overheating, such as due to increased power consumption or an increase in the ambient temperature at the device, the power MOSFETs are shut down. The determination of a overtemperature condition is made by the driver circuit ICs on the high side and low side, in accordance with table 1. When the operating temperature rises above 135° ...

Page 10

... Figure 14. Low-Side VCC2 UVLO Internal Equivalent Circuit UVHH UVHL SET RESET V REF + Filter – VBx U VLH LIN V REF – Filter + V CC2 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com UVLH UVLL MOSFET MOSFET Gate Drive Circuit To SD2 Output 10 ...

Page 11

... Figure 16. Overcurrent Protection Circuit 2 μs 2 μs 5 μs 3.5 V OCP – + Pulse Expansion 5 μ ref S OCP – Filter 2 μs + Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com OCP Release V (2 Slope set by R2, C2 3.5 V Slope set by RC, CC MOSFET +5 V Shutdown R2 SD2 50 Ω C2 ...

Page 12

... Current Limiting by PWM Control This application imple- ments current limiting by connecting the OCL and SD1 pins (fig- ure 17). Current limiting occurs by turning off and on the power supplied to the high side of the MOSFET bridge. The timing is illustrated in figure 18 SLA6860M/SMA6860M VB1 VB2 VB3 4 VCC1 HO 1 HS1 High-side ...

Page 13

... OCL 2 μs 2 μ (2.9V ) (2.9V ) (2.1V μs Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Enables low-side turn-on at next rising edge on LIN signal 2.9V) 3. ...

Page 14

... Figure 19. Typical Application. Current limiting by controlling power to high-side MOSFETs, with an external diode, DT, affecting the timing. turning off and on the power supplied to the high side of the MOSFET bridge, according to a fault signal on the OCL-SD2 output. The effect on timing is shown in figure 20 SLA6860M/SMA6860M VB1 VB2 VB3 4 VCC1 HO 1 HS1 High-side ...

Page 15

... (2.9V ) (2.1V μs is less than 1 –20°C to 125°C). A Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Enables low-side turn-on at next rising edge on LIN signal (2. ...

Page 16

... R1 ZD System Logic RR VRC Figure 21. Typical Application. No output current limiting. nals and the pull-up resistor on SD2 are not required. The effect on timing is shown in figure 22 SLA6860M/SMA6860M VB1 VB2 VB3 4 VCC1 HO 1 HS1 High-side Logic Circuit SD1 HS2 9 HIN 1 ...

Page 17

... Figure 22. Output Timing Effects. Using typical application shown in figure 21 (no current limiting). HIN and LIN must not be in phase. t BLANK V TRIP Slope μ delay Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com OCP Release 3 ...

Page 18

... HIN LIN V UVHL VBx to HSx VCC Figure 24. Undervoltage Lockout (UVLO) Protection. HIN and LIN must not be in phase UVHH UVLL UVLH Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ...

Page 19

... more than 1.5 μs is recommended. BLANK Electrical Characteristics Data The following pages contain characteristic performance data. The information shown applies to all models of the SLA6860M- SMA6860M Series, unless otherwise specified. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ...

Page 20

... 125° 600 500 T = 25°C 400 J 300 200 100 0 - Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com I versus =125° 25° (V) ...

Page 21

... Minimum On Width versus T 700 600 MAX 500 400 TYP 300 200 100 0 125 150 -25 12.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 1000 1200 -25 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com V versus TYP MAX MIN 100 125 150 T (° Low Side J MAX TYP 0 ...

Page 22

... UVLO Filter Delay (High Side) versus T 25 MAX 20 TYP MIN 125 150 - 0.60 0.55 MAX 0.50 TYP 0.45 MIN 0.40 125 150 -25 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com J MAX TYP MIN 100 125 150 T (° MAX TYP MIN 100 125 ...

Page 23

... MIN 1.5 1.0 0 -25 0 125 150 2.8 MAX 2.6 TYP 2.4 MIN 2.2 2.0 1.8 1.6 1.4 125 150 -25 0 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Blanking Time versus T (OCP,OCL) J MAX TYP MIN 100 125 150 T (°C) J OCP Hold Time versusT J = 360 kΩ,C = 0.0047μF ...

Page 24

... Saturation Voltage versus T (RC V,R = 330 kΩ,C = 0.01μF MAX TYP MIN - 100 125 T (°C) J Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com (SD, OCL) J MAX TYP MIN 100 125 150 T (°C) J 150 24 ...

Page 25

... SD 1.5 1.0 0.5 0 1.5 2.0 0 0.2 SMA6862M MOSFET Characteristics 1 1.0 0 0.2 0.4 1.5 SMA6863M MOSFET Characteristics 2 2.0 1.5 1.0 0.5 0 2.0 2.5 0 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com I versus 125°C 75°C 25°C 0.4 0.6 0.8 1 versus 125°C 75°C 25°C 0.6 0.8 1.0 1.2 1 versus V ...

Page 26

... The products described herein are manufactured in Ja pan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such de par tures from the detail spec tions as may be re quired to per mit im- prove ments in the per for mance, reliability, or manufacturability of its prod ucts ...

Page 27

... North America United States Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01606, U.S.A. Tel: 1-508-853-5000, Fax: 1-508-853-7895 Allegro MicroSystems, Inc. 14 Hughes Street, Suite B105 Irvine, California 92618, U.S.A. Tel: 1-949-460-2003, Fax: 1-949-460-7837 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 27 ...

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