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VNH5180A-E Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer VNH5180A-E
Beschreibung Automotive fully integrated H-bridge motor driver
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 30 Seiten
VNH5180A-E Datasheet, Funktion
VNH5180A-E
Automotive fully integrated H-bridge motor driver
Features
Type
VNH5180A-E
RDS(on)
180 mΩ max
(per leg)
Iout VCCmax
8 A 41 V
Output current: 8 A
3 V CMOS compatible inputs
Undervoltage shutdown
Overvoltage clamp
Thermal shutdown
Cross-conduction protection
Current and power limitation
Very low standby power consumption
PWM operation up to 20 KHz
Protection against loss of ground and loss of
VCC
Current sense output proportional to motor
current
Output protected against short to ground and
short to VCC
Package: ECOPACK®
Description
The VNH5180A-E is a full bridge motor driver
intended for a wide range of automotive
applications. The device incorporates a dual
monolithic high-side driver and two low-side
switches. Both switches are designed using
STMicroelectronics’ well known and proven
PowerSSO-36 TP
proprietary VIPower® M0 technology that allows
to efficiently integrate on the same die a true
Power MOSFET with an intelligent
signal/protection circuitry. The three dies are
assembled in PowerSSO-36 TP 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, enables one leg of the bridge.
Each DIAGA/ENA provides a feedback digital
diagnostic signal as well. The normal operating
condition is explained in the truth table. The CS
pin allows to monitor the motor current by
delivering a current proportional to its value when
CS_DIS pin is driven low or left open. When
CS_DIS is driven high, CS pin is in high
impedance condition. The PWM, up to 20 KHz,
allows to control the speed of the motor in all
possible conditions. In all cases, a low level state
on the PWM pin turns off both the LSA and LSB
switches.
Table 1. Device summary
Package
PowerSSO-36 TP
Tube
VNH5180A-E
Order codes
Tape and reel
VNH5180ATR-E
December 2011
Doc ID 17074 Rev 5
1/31
www.st.com
1






VNH5180A-E Datasheet, Funktion
Block diagram and pin description
VNH5180A-E
Figure 2. Configuration diagram (top view)
NC
DRAIN LSA
GND_A
GND_A
NC
GND_A
GND_A
DRAIN LSA
NC
SOURCE HSA
SOURCE HSA
SOURCE HSA
VCC
NC
IN_A
EN/DIAG_A
IN_PWM
NC
1 36
Slug2
Slug3
Slug1
18 19
NC
DRAIN LSB
GND_B
GND_B
NC
GND_B
GND_B
DRAIN LSB
NC
SOURCE HSB
SOURCE HSB
SOURCE HSB
VCC
NC
IN_B
EN/DIAG_B
CS_DIS
CS
Table 3. Suggested connections for unused and not connected pins
Connection / pin
Current sense
N.C.
SOURCE_HSx
DRAIN_LSx
INPUTx, PWM
DIAGx/ENx
CS_DIS
Floating
To ground
Not allowed
X
X
Through 1 kΩ
resistor
X
Not allowed
XX
X
Through 10 kΩ
resistor
Table 4. Pin definitions and functions
Pin N°
Symbol
Function
13, 24
1, 5, 9, 14, 18, 23,
28, 32, 36
VCC, Heat Slug1 Drain of high-side switches and power supply voltage.
NC Not connected.
15 INA Clockwise input
16
ENA/DIAGA
Status of high-side and low-side switches A;
open drain output.
17
IN_PWM
PWM input.
19 CS Output of current sense.
6/31 Doc ID 17074 Rev 5

6 Page









VNH5180A-E pdf, datenblatt
Electrical specifications
VNH5180A-E
Table 12. Current sense (9 V < VCC < 18 V) (continued)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
IOUT = 0 A; VSENSE = 0 V; VCSD = 5 V;
VIN = 0 V; Tj = - 40 to 150 °C
ISENSE0
Analog sense
leakage current
VCSD = 0 V; VIN = 5 V;
Tj = - 40 to.150 °C
VCSD = 5 V; VIN = 5 V; IOUT = 2.5 A;
Tj = - 40 to.150 °C
Delay response time VIN = 5 V; VSENSE < 4 V, IOUT = 2.5 A,
tDSENSEH from falling edge of ISENSE = 90 % of ISENSEmax
CS_DIS pin
(see Figure 8)
Delay response time VIN = 5 V; VSENSE < 4 V; IOUT = 2.5 A;
tDSENSEL from rising edge of ISENSE = 10 % of ISENSEmax
CS_DIS pin
(see Figure 8)
0
0
0
5 µA
180 µA
5 µA
50 µs
20 µs
1. Analog sense current drift is deviation of factor K for a given device over (-40 °C to 150 °C and
9 V < VCC < 18 V) with respect to its value measured at TJ = 25 °C, VCC = 13 V.
Figure 4.
Definition of the delay times measurement
VINA
VINB
t
PWM
t
ILOAD
tDEL
tDEL
12/31
Doc ID 17074 Rev 5
t
t

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