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PDF NCV7708B Data sheet ( Hoja de datos )
| Número de pieza | NCV7708B | |
| Descripción | Double Hex Driver | |
| Fabricantes | ON Semiconductor | |
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NCV7708B
Double Hex Driver
The NCV7708B is a fully protected Hex−Half Bridge−Driver
designed specifically for automotive and industrial motion control
applications. The six low and high side drivers are freely configurable
and can be controlled separately. This allows for high side, low side,
and H−Bridge control. H−Bridge control provides forward, reverse,
brake, and high impedance states. The drivers are controlled via a
standard SPI interface.
Features
• Ultra Low Quiescent Current Sleep Mode
• Six Independent High−Side and Six independent Low−Side Drivers
• Integrated Freewheeling Protection (LS and HS)
• Internal Upper and Lower Clamp Diodes
• Configurable as H−Bridge Drivers
• 0.5 A Continuous (1 A peak) Current
• RDS(on) = 0.8 W (typ)
• 5 MHz SPI Control
• SPI Valid Frame Detection
• Compliance with 5 V and 3.3 V Systems
• Overvoltage Lockout
• Undervoltage Lockout
• Fault Reporting
• Current Limit
• Overtemperature Protection
• Internally Fused Lead in SOIC−28
Packaged for Better Thermal Performance
• These are Pb−Free Devices*
Typical Applications
• Automotive
• Industrial
• DC Motor Management
http://onsemi.com
SOIC−28
DW SUFFIX
CASE 751F
MARKING DIAGRAM
NCV7708B
AWLYYWWG
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTIONS
OUTL5
OUTH5
OUTH4
OUTL4
VS2
GND
GND
GND
GND
VS1
OUTL3
OUTH3
OUTH2
OUTL2
1
OUTH6
OUTL6
SI
SCLK
CSB
GND
GND
GND
GVSCONCD
EN
OUTL1
OUTH1
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2012
September, 2012 − Rev. 2
1
ORDERING INFORMATION
Device
Package
Shipping†
NCV7708BDWR2G SOIC−28W
1000/
(Pb−Free) Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Publication Order Number:
NCV7708B/D
1 page  
NCV7708B
ELECTRICAL CHARACTERISTICS
(−40°C < TJ < 150°C, 5.5 V < VSx < 40 V, 3 V < VCC < 5.25 V, EN = VCC, unless otherwise specified)
Characteristic
Test Conditions
Min
Typ
GENERAL
Supply Current (VS1 + VS2)
Sleep Mode (Note 5)
VS1 = VS2 = 13.2 V, VCC = CSB = 5 V,
EN = SI = SCLK = 0 V (−40°C to 85°C)
−
1.0
Supply Current (VS1)
Active Mode
EN = VCC, 5.5 V < VSx < 35 V
No Load
− 2.0
Supply Current (VCC) − Sleep Mode (Note 5)
CSB = VCC, EN = SI = SCLK = 0 V
(−40°C to 85°C)
− 1.0
Supply Current (VCC) − Active Mode
Supply Current (VS2)
Active Mode
EN = CSB = VCC, SI = SCLK = 0 V
EN = VCC, 5.5 V < VSx < 35 V
No Load
− 1.5
− 0.5
VCC Power−On−Reset Threshold
VSx Undervoltage Detection Threshold
VSx decreasing
2.60 2.80
4.2 4.6
VSx Undervoltage Detection Hysteresis
100 −
VSx Overvoltage Detection Threshold
VSx increasing
35.0 37.5
VSx Overvoltage Detection Hysteresis
1.5 3.5
Thermal Warning (Note 4)
120 145
Thermal Warning Hysteresis (Note 4)
− 30
Thermal Shutdown (Note 4)
155 175
Ratio of Thermal Shutdown to Thermal Warning (Note 4)
1.05 1.20
OUTPUTS
Output High RDSon (source)
Iout = −500 mA
8 V < Vs < 40 V
−−
8 V < Vs < 40 V, T = 25°C
− 0.8
5.5 V < Vs ≤ 8 V
−−
5.5 V < Vs ≤ 8 V, T = 25°C − 1.3
Output Low RDSon (sink)
Iout = 500 mA
8 V < Vs < 40 V
−−
8 V < Vs < 40 V, T = 25°C
− 0.8
5.5 V < Vs ≤ 8 V
−−
5.5 V < Vs ≤ 8 V, T = 25°C − 1.3
Source Leakage Current
OUTH(1−6) = 0 V, VSx = 40 V, VCC = 5 V
OUTH(1−6) = 0 V, Vsx = 13.2 V, VCC = 5V
−5.0
−1.0
−
−
Sink Leakage Current
OUTL(1−6) = 34 V, VCC = 5 V
OUTL(1−6) = 34 V, VCC = 5 V, T = 25°C
−
−
−
−
Overcurrent Shutdown Threshold (OUTHx)
VCC = 5 V, Vsx = 13.2 V
−1.9 −1.45
Current Limit (OUTHx)
VCC = 5 V, Vsx = 13.2 V
−5.0 −3.0
Overcurrent Shutdown Threshold (OUTLx)
VCC = 5 V, Vsx = 13.2 V
1.0 1.45
Overcurrent Shutdown Delay Time − Source
Overcurrent Shutdown Delay Time − Sink
VCC = 5 V, Vsx = 13.2 V
10 25
10 25
4. Thermal characteristics are not subject to production test.
5. For temperatures above 85°C, refer to graphs for VSx and VCC Sleep Current vs. Temperature on page 13.
6. Refer to “Typical High−Side Negative Clamp Voltage” graph on page 13.
7. Not production tested.
Max Unit
5.0 mA
4.0 mA
2.5 mA
3.0 mA
1.0 mA
3.00 V
5.1 V
400 mV
40.0 V
5.5 V
170 °C
− °C
195 °C
−−
W
1.8
1.0
2.2
−
W
1.8
1.0
2.2
−
− mA
−
5.0 mA
1.0
−1.0 A
−2.0 A
1.9 A
50 ms
50
http://onsemi.com
5
5 Page 
NCV7708B
Over Voltage Shutdown
Over voltage shutdown circuitry monitors the voltage on
the VS1 and VS2 pins. When the Over−voltage Threshold
voltage level has been breached on both or either one of the
VSx supply inputs, output bit 15 will be set and, if input bit
15 (OVLO) is set to 1, all outputs will turn off. Turn on/off
Over Voltage Lock Out (OVLO) Shut Down
OVLO In-
put Bit 15
VSx OVLO
Condition
Output Data Bit 15 Power
Supply Fail (PSF) Status
00
0
0 1 1 (Need SRR to reset)
10
0
1 1 1 (Need SRR to reset)
Thermal Shutdown
Six independent thermal shutdown circuits are featured
(one common sensor for each HS and LS transistor pair).
Each sensor has two levels, one to give a Thermal Warning
(TW) and a higher one, Over Temperature, which will shut
the drivers off. When the part reaches the temperature point
of Thermal Warning, the output data bit 0 (TW) will be set
to a 1, and the outputs will remain on. With one or more
sensors detecting the over temperature level, all channels
will be turned off simultaneously. All outputs will return to
normal operation when the part thermally recovers
(Thermal toggling), because the over temperature shutdown
does not change the actual channel selection. The output
data bit 0, Thermal Warning, will latch and remain set, even
after cooling, and is reset by using a software command to
input bit 0 (SRR). Since thermal warning precedes a thermal
shutdown, software polling of this bit will allow for load
status is maintained in the logic circuitry. When proper input
voltage levels are re−established, the programmed outputs
will turn back on. Over−voltage shutdown can be disabled
by using the SPI input bit 15 (OVLO = 0).
OUTx Status
Unchanged
Unchanged
Unchanged
All Outputs Off (Remain off until VSx is out of OVLO)
control and possible prevention of thermal shutdown
conditions.
Thermal warning information can be retrieved
immediately without performing a complete SPI access
cycle. Figure 4 below displays how this is accomplished.
Bringing the CSB pin from a 1 to a 0 condition immediately
displays the information on the output data bit 0, thermal
warning, even in the absence of a SCLK signal. As the
temperature of the NCV7708B changes from a condition
from below the thermal warning threshold to above the
thermal warning threshold, the state of the SO pin changes
and this level is available immediately when the CSB goes
to 0. A 0 on SO indicates there is no thermal warning, while
a 1 indicates the IC is above the thermal warning threshold.
This warning bit is reset by using the input data bit 0, SRR.
CSB
CSB
SCLK
SCLK
SO
Tristate Level
TWH
SO Tristate Level
NTW
Thermal Warning High
No Thermal Warning
Figure 4. Access to Temperature warning information shows the thermal information is available immediately
with activation of the CSB signal without having to toggle the SCLK line.
http://onsemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet NCV7708B.PDF ] | |
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