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L9958SB 데이터시트 PDF




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부품번호 L9958SB 기능
기능 Low RDSON SPI controlled H-Bridge
제조업체 STMicroelectronics
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L9958SB 데이터시트, 핀배열, 회로
L9958
Low RDSON SPI controlled H-Bridge
'!0'03
PowerSO-20
'!0'03
PowerSSO24
'!0'03
PowerSO16
Features
Programmable current regulation peak
threshold by SPI up to 8.6 A typ.
Operating battery supply voltage 4.0 V to 28 V
Operating Vdd supply voltage 4.5 V to 5.5 V
All pins withstand 19 V, Vs and output pins
withstand 40 V
Full path Ron from 100 mΩ (at Tj = -40 °C) to
300 mΩ (at Tj =150 °C)
Logic inputs TTL/CMOS-compatible
Operating frequency up to 20 kHz
16-bit SPI interface for
configuration/diagnostics, daisy chain
capability
Over temperature and short circuit protection
VS undervoltage disable function
Vdd undervoltage and overvoltage protection
Vdd overvoltage detection
Open-load detection in ON condition
Full diagnostics in OFF state
Enable and disable input
Low stand by current (<10 μA)
Voltage and current slew-rate control for low
EMI, programmable through SPI
Available in three power packages
Description
The L9958 is an SPI controlled H-Bridge,
designed for the control of DC and stepper motors
in safety critical applications and under extreme
environmental conditions.
Datasheet - production data
The H-Bridge is protected against over
temperature, short circuits and has an
undervoltage lockout for all the supply voltages Vs
and Vdd, and for overvoltage on Vdd. All
malfunctions cause the output stages to go
tristate.
Detailed failure diagnostics on each channel is
provided via SPI: short circuit to battery, short
circuit to ground, short circuit overload, over
temperature.
Open-load can be detected in ON condition, for
the widest application ranges. Current regulation
threshold can be set by SPI from 2.5 A to 8.6 A
(Typ.), in 4 steps. Guaranteed accuracy is ±10 %
on all temp range, using an external reference
resistor with 1% accuracy over all temp range.
Current limitation threshold is linearly reduced by
temperature over 165 °C.and a thermal warning
bit is set by SPI. The H-Bridge contains integrated
free-wheel diodes. In case of free-wheeling
condition, the low side transistor is switched on in
parallel of its diode to reduce power dissipation.
A multiple wire bonding technique, as well as ST
proprietary package design is making L9958
compatible with three power packages, for
maximum flexibility:
PowerSO-20 package (medium power, JEDEC
standard MO166);
PowerSO16 package (medium power, lower
cost);
PowerSSO24 package (low power, very low cost
JEDEC standard MO271A).
Table 1. Device summary
Order code
Package
Packing
L9958
PowerSO-20
Tube
L9958SB
PowerSO16
Tube
L9958XP
PowerSSO24
Tube
December 2013
This is information on a product in full production.
DocID17269 Rev 6
1/38
www.st.com




L9958SB pdf, 반도체, 판매, 대치품
List of tables
List of tables
L9958
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PowerSO-20 pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PowerSO16 pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PowerSSO24 pin function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Control pins EN, DI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Control pins DIR, PWM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Configuration protocol (CFG_REG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Diagnosis protocol (DIA_REG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current limitation programmability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Slew rate control on low side MOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Diagnosis reset strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Over-temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Vs under-voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vdd over-voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Range of functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Device supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Device supply monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Digital inputs: TTL // 3.3V / 5V CMOS compatible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Bridge output drivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Over-temperature monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Current limitation and over-current detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Diagnostic of open-load in on-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Off-state diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Document revision history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4/38 DocID17269 Rev 6

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L9958SB 전자부품, 판매, 대치품
L9958
2 Pins description
Pins description
2.1
PowerSO-20
The exposed slug must be soldered on the PCB and connected to GND.
Pin N°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
GND
SO
VDDIO
CS
CP
VS
DIR
OUT1
DI
GND
GND
EN
OUT2
PWM
REXT
SI
SCK
VDD
N.C.
GND
Table 2. PowerSO-20 pin function
Description
Ground
Serial out
Supply voltage for SPI
Chip select
Charge pump
Supply voltage
Direction input
Output 1
Disable
Ground
Ground
Enable
Output 2
PWM input
External reference resistor
Serial in
SPI clock
Supply voltage
Not connected (To be connected to GND on the PCB)
Ground
Figure 2. PowerSO-20 pin connection (top view)
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DocID17269 Rev 6
7/38
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구매 문의
일반 IC 문의 : 샘플 및 소량 구매
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상호 : 아이지 인터내셔날

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관련 데이터시트

부품번호상세설명 및 기능제조사
L9958SB

Low RDSON SPI controlled H-Bridge

STMicroelectronics
STMicroelectronics

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