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PDF ( 数据手册 , 数据表 ) VNH3ASP30-E

零件编号 VNH3ASP30-E
描述 AUTOMOTIVE FULLY INTEGRATED H-BRIDGE MOTOR DRIVER
制造商 STMicroelectronics
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VNH3ASP30-E 数据手册, 描述, 功能
Table 1. General Features
TYPE
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VNH3ASP30-E
RDS(on)
42 mmax
(per leg)
IOUT
30 A
VNH3ASP30-E
AUTOMOTIVE FULLY INTEGRATED
H-BRIDGE MOTOR DRIVER
Vccmax
41 V
Figure 1. Package
TARGET SPECIFICATION
s OUTPUT CURRENT: 30A
s 5V LOGIC LEVEL COMPATIBLE INPUTS
s UNDERVOLTAGE AND OVERVOLTAGE
SHUT-DOWN
s OVERVOLTAGE CLAMP
s THERMAL SHUT DOWN
s CROSS-CONDUCTION PROTECTION
s LINEAR CURRENT LIMITER
s VERY LOW STAND-BY POWER
CONSUMPTION
s PWM OPERATION UP TO 20 KHz
s PROTECTION AGAINST:
LOSS OF GROUND AND LOSS OF VCC
s CURRENT SENSE OUTPUT PROPORTIONAL
TO MOTOR CURRENT
s IN COMPLIANCE WITH THE 2002/95/EC
EUROPEAN DIRECTIVE
DESCRIPTION
The VNH3ASP30-E is a full bridge motor driver
intended for a wide range of automotive
applications. The device incorporates a dual
monolithic High-Side drivers and two Low-Side
switches. The High-Side driver switch is designed
using STMicroelectronic’s well known and proven
proprietary VIPowerM0 technology that allows
to efficiently integrate on the same die a true
Power MOSFET with an intelligent signal/
protection circuitry.
MultiPowerSO-30
The Low-Side switches are vertical MOSFETs
manufactured using STMicroelectronic’s
proprietary EHD (‘STripFET™’) process. The
three dice are assembled in MultiPowerSO-30
package on electrically isolated leadframes. This
package, specifically designed for the harsh
automotive environment offers improved thermal
performance thanks to exposed die pads.
Moreover, its fully symmetrical mechanical design
allows superior manufacturability at board level.
The input signals INA and INB can directly
interface to the microcontroller to select the motor
direction and the brake condition. The DIAGA/ENA
or DIAGB/ENB, when connected to an external
pull-up resistor, enable one leg of the bridge. They
also provide a feedback digital diagnostic signal.
The normal condition operation is explained in the
truth table on page 7. The CS pin allows to monitor
the motor current by delivering a current
proportional to its value. The PWM, up to 20KHz,
lets us to control the speed of the motor in all
possible conditions. In all cases, a low level state
on the PWM pin will turn off both the LSA and LSB
switches. When PWM rises to a high level, LSA or
LSB turn on again depending on the input pin
state.
Table 2. Order Codes
Package
MultiPowerSO-30
Tube
VNH3ASP30-E
Tape and Reel
VNH3ASP30TR-E
September 2004
Rev. 1
1/18







VNH3ASP30-E pdf, 数据表
VNH3ASP30-E
Figure 5. Typical Application Circuit For Dc To 20KHz PWM Operation
VCC
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Reg 5V
µC
+ 5V
3.3K
1K
DIAGA/ENA
1K
PWM
1K INA
10K CS
33nF
1.5K
HSA
OUTA
LSA
VCC
HSB
OUTB
LSB
M
100K
S
G
b) N MOSFET
D
In case of a fault condition the DIAGX/ENX pin is consid-
ered as an output pin by the device.
The fault conditions are:
- overtemperature on one or both high sides (for example
if a short to ground occurs as it could be the case
described in line 1 and 2 in the table below);
- short to battery condition on the output (saturation
detection on the Low-Side Power MOSFET).
Possible origins of fault conditions may be:
OUTA is shorted to ground ---> overtemperature
detection on high side A.
OUTA is shorted to VCC ---> Low-Side Power MOSFET
saturation detection.
When a fault condition is detected, the user can know
which power element is in fault by monitoring the INA,
INB, DIAGA/ENA and DIAGB/ENB pins. In any case,
when a fault is detected, the faulty leg of the bridge is
latched off. To turn-on the respective output (OUTX)
again, the input signal must rise from low to high level.
Table 15. Truth Table In Fault Conditions (detected on OUTA)
INA INB
11
10
01
00
XX
X1
X0
DIAGA/ENA
0
0
0
0
0
0
0
DIAGB/ENB
1
1
1
1
0
1
1
OUTA
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OUTB
H
L
H
L
OPEN
H
L
CS
High Imp.
High Imp.
IOUTB/K
High Imp.
High Imp.
IOUTB/K
High Imp.
Fault Information
Protection Action
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VNH3ASP30-E equivalent, schematic
VNH3ASP30-E
Figure 15. MultiPowerSO-30 Suggested Pad Layout
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