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PDF NCV7702B Data sheet ( Hoja de datos )
| Número de pieza | NCV7702B | |
| Descripción | 1A Dual H-Bridge Driver | |
| Fabricantes | ON Semiconductor | |
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NCV7702B
1 A Dual H-Bridge Driver
This dual full-bridge driver IC is intended for 14 V automotive
stepper and DC motor applications. Its four half-bridge outputs are
configured as two channels and are programmed by six TTL
compatible inputs, allowing flexible control of bridge operation. The
device operates in standby mode, run mode, or brake mode and
typically consumes less than 1 mA while in standby. In run mode,
each half-bridge output can deliver load current in either direction.
Brake mode activates the low side transistors or high side transistors
at the selected outputs. On-chip recirculation diodes are provided,
and the IC has multiple fault protection modes. Overcurrent
detection protects against shorted loads between outputs and shorts
to supply or ground at each output. An overcurrent fault condition
activates an internal timer, which modulates faulted outputs at low
duty cycle. An overcurrent condition in one channel does not affect
operation in the other. Overvoltage and overtemperature detection
are also provided, and turn off all bridge outputs during these fault
conditions. Recovery from all fault conditions is automatic; the IC
will resume normal operation in its previously selected mode upon
fault resolution. Diagnostic ability is provided by two open-collector
STATUS outputs which report the fault status of each channel
independently during overcurrent faults, and together during
overvoltage or overtemperature faults.
Features
•ăSingle 7 V-16 V Supply
•ăLow Standby Current:
♦ă< 1.0 mA Typically
•ă3.3 V / 5 V Compatible Inputs
•ăIndependent Channel Enable
•ăChannels Configurable as:
♦ăFull-Bridge Drive
♦ăHalf-Bridge, High Side or Low Side Drive
•ăOn-Chip Recirculation Diodes
•ăFault Protection with Automatic Recovery for:
♦ăOvercurrent
♦ăOvervoltage
♦ăOvertemperature
•ăFault Diagnostic STATUS Outputs
•ăInternally Fused Leads in SO–24L Package
•ăAEC Qualified
•ăPPAP Capable
•ăThese are Pb-Free Devices*
Applications
•ăAutomotive and Industrial Driver for:
♦ăDC or Stepper Motors
♦ăRelays or Solenoids
♦ăUnipolar or Bipolar Loads
http://onsemi.com
24
1
SO-24L
DW SUFFIX
CASE 751E
MARKING DIAGRAM
24
NCV7702B
AWLYYWWG
1
A
WL
YY
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Device
PIN CONNECTIONS
1
VB1
24
VB2
OUT1B
OUT2B
OUT1A
OUT2A
STATUS1
STATUS2
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
IN1A
IN1B
IN2A
IN2B
AGND
CT
EN1 EN2
ORDERING INFORMATION
Device
Package Shipping†
NCV7702BDWG
SO-24L 31 Units/Rail
(Pb-Free)
NCV7702BDWR2G SO-24L 1000 Tape & Reel
(Pb-Free)
†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.
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
©Ă Semiconductor Components Industries, LLC, 2007
October, 2007 - Rev. 1
1
Publication Order Number:
NCV7702B/D
1 page  
NCV7702B
INPUT LOGIC TABLE
EN1 = EN2 = 0 = Standby Mode
Channel #1
EN1 IN1A IN1B OUT1A OUT1B
Mode
EN2 IN2A
100
Low
Low Brake Low 1
0
1 0 1 Low High Run 1 0
1 1 0 High Low Run 1 1
1
1
1
High
High
Brake High
1
1
0XX
|Z|
|Z|
Off 0 X
NOTE: X = Don't Care; |Z| = Output Off.
Channel #2
IN2B OUT2A OUT2B
0 Low Low
1 Low High
0 High
Low
1 High High
X |Z|
|Z|
Mode
Brake Low
Run
Run
Brake High
Off
STATUS OUTPUT TABLE
STATUS1
STATUS2
Fault Diagnostic
1 1 No Fault.
0 1 Channel 1 Overcurrent; Note 9
1 0 Channel 2 Overcurrent; Note 9
0 0 Overvoltage, Overtemperature or Overcurrent in Both Channels; Notes 9 and 10
9. During overcurrent, the STATUS outputs will be modulated at the overcurrent duty cycle rate. See Figure 5.
10. During overtemperature, the STATUS outputs will be modulated by the thermal time constants.
+14 V
OUTX
R
R
INX
ENX
1
VB1
24
VB2
OUT1B
OUT2B
OUT1A
OUT2A
STATUS1 STATUS2
PGND
PGND
PGND
PGND
NCV7702B
PGND
PGND
PGND
PGND
IN1A
IN2A
IN1B
IN2B
AGND
12
EN1
CT
13
EN2
Figure 2. Propagation Delay and Dead Band Timing Test Circuit
http://onsemi.com
5
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| PDF Descargar | [ Datasheet NCV7702B.PDF ] | |
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