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HI-8430 PDF даташит

Спецификация HI-8430 изготовлена ​​​​«HOLTIC» и имеет функцию, называемую «Supply / Open Sensor».

Детали детали

Номер произв HI-8430
Описание Supply / Open Sensor
Производители HOLTIC
логотип HOLTIC логотип 

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HI-8430 Даташит, Описание, Даташиты
November 2015
HI-8430, HI-8431
8-Channel, Ground /Open, or Supply / Open Sensor
4-channel 200 mA Supply / Open Driver
GENERAL DESCRIPTION
The HI-8430 is a combined 8-channel discrete-to-digital
sensor and quad high side driver fabricated with Silicon-
on-Insulator (SOI) technology for robust latch-up free
operation. Sense detection can either be GND/Open or
Supply/Open as configured by the SNSE_SEL pin.
Supply/Open sensing is also referred to as 28V/Open
sensing. The sensing circuit window comparator
thresholds can be fixed at the internal programmed values
or can be set externally at the HI_SET and LO_SET pins,
as selected by the THS_SEL pin. The digital SENSE
outputs can be tri-stated by taking the OE pin high.
All sense inputs are internally lightning protected to
DO160G, Section 22, Cat AZ, BZ and ZZ without external
components.
The HI-8430 also offers four high side switches each
capable of sourcing 200 mA of current. Each switch
transistor is controlled by its own digital input pin and is fully
fault protected. Over-current conditions, such as a short
circuit, are detected and inhibited while signaling the fault
condition at the corresponding logic output. These four
FAULT outputs are also available in a combined OR output.
The outputs are fully protected from transients when
driving relays.
The HI-8431 is a smaller, reduced pin version of the HI-
8430 and is available in a 32-pin PQFP or 5mm x 5mm
QFN. It has all the features of the HI-8430 except the
individual fault detection outputs, tri-state pin selection and
fixed internal thresholds.
Interface to the digital subsystem is simple CMOS logic
inputs and outputs. The logic pins are compatible with 5V
or 3.3V logic allowing direct connection to a wide range of
microcontrollers or FPGAs.
· Airbus ABD0100H compliant sense inputs
· 4 High-Side 200 mA Drivers
· 4.5 Ohm On Resistance VLOGIC Inputs Control 5V to
36V High Side Drivers
· Over-Current Fault Detection Signaled by Logic Output
· Max Power Dissipation Automatically Limited by Fault
Protection
· Diode Clamps for Discharging Inductive Loads
APPLICATIONS
· Avionics Discrete to Digital Sensing
· Relay Driver
· Lamp driver
· Discrete Signaling
PIN CONFIGURATIONS
VWET - 1
SENSE0 - 2
SENSE1 - 3
SENSE2 - 4
SENSE3 - 5
SENSE4 - 6
SENSE5 - 7
SENSE6 - 8
SENSE7 - 9
OE - 10
HI-8430PCI
HI-8430PCT
HI-8430PCM
30 -
29 - FAULT_0
28 - DRV_0
27 - DRV_1
26 - FAULT_1
25 - VDRV
24 - FAULT_2
23 - DRV_2
22 - DRV_3
21 - FAULT_3
40 Pin Plastic 6mm x 6mm
Chip-scale package
FEATURES
· Robust CMOS Silicon-on-Insulator (SOI) technology
· 8-channel Selectable Sense Operation, GND/Open
or Supply/Open
SENSE0 - 1
SENSE1 - 2
SENSE2 - 3
SENSE3 - 4
SENSE4 - 5
SENSE5 - 6
SENSE6 - 7
SENSE7 - 8
HI-8431PCI
HI-8431PCT
HI-8431PCM
24 - DSEL_3
23 - DRV0
22 - DRV1
21 - VDRV
20 - DRV_2
19 - DRV_3
18 - FAULT_OR
17 - GND
· Selectable Thresholds and Hysteresis
· Sense Detection Range 3V to 20V
· Logic Operation from 3.0V to 5.5V
· Lightning Protected Sense Inputs
(DS8430 Rev. F)
32 Pin Plastic 5mm x 5mm
Chip-scale package
(See page 14 for leaded QFP package options)
HOLT INTEGRATED CIRCUITS
www.holtic.com
11/15









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HI-8430 Даташит, Описание, Даташиты
HI-8430, HI-8431
BLOCK DIAGRAM
VLOGIC VWET
THS_SEL
SNSE_SEL
HI_SET
LO_SET
VLOGIC
VOLTAGE
REFERENCE
VREF_HI
VREF_LO
VTHI/10
VTLO/10
VWET
VLOGIC
SNSE_SEL
SENSE_0
SENSE_1
SENSE_2
SENSE_3
SENSE_4
SENSE_5
SENSE_6
SENSE_7
OE
3.3k
23.8k
LIGHTNING
PROTECTION
360k
40k
29k
SNSE_SEL
+
-
+
-
DSEL_0
DSEL_1
DSEL_2
DSEL_3
Current
Sense
Drive
Control
GND
Figure 2
HOLT INTEGRATED CIRCUITS
2
SO_0
SO_1
SO_2
SO_3
SO_4
SO_5
SO_6
SO_7
VDRV
DRV_0
DRV_1
DRV_2
DRV_3
FAULT_0
FAULT_1
FAULT_2
FAULT_3
FAULT_OR









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HI-8430 Даташит, Описание, Даташиты
HI-8430, HI-8431
PIN DESCRIPTIONS
SYMBOL FUNCTION
DESCRIPTION
VWET
SENSE_0
SENSE_1
SENSE_2
SENSE_3
SENSE_4
SENSE_5
SENSE_6
SENSE_7
OE
SO_0
SO_1
SO_2
SO_3
SO_4
SO_5
SO_6
SO_7
GND
FAULT_3
DRV_3
VDRV
Supply
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Digital Input
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Supply
Digital output
Switch Output
Supply
DRV_2 Switch Output
FAULT_2 Digital output
FAULT_1 Digital output
DRV_1 Switch Output
DRV_0 Switch Output
FAULT_0 Digital output
DSEL_3 Digital Input
DSEL_2 Digital Input
DSEL_1 Digital Input
DSEL_0 Digital Input
FAULT_OR Digital Output
SNSE_SEL Digital Input
LO_SET Analog input
HI_SET Analog input
THS_SEL Digital Input
VLOGIC
Supply
Optional input to supply relay wetting current to sense lines in GND/Open operation 50kΩ To GND
Discrete input 0. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 1. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 2. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 3. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 4. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 5. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 6. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
Discrete input 7. If SNSE_SEL = 0 pin senses GND/Open. If SNSE_SEL = 1, senses SUPPLY/Open
If High, SO_n outputs are high-impedance. OE has internal 30kΩ pull-down resistor
High if SNSE_SEL=0 and SENSE_0 < VLO, or Low if SNSE_SEL=1 and SENSE_0 > VHI
High if SNSE_SEL=0 and SENSE_1 < VLO, or Low if SNSE_SEL=1 and SENSE_1 > VHI
High if SNSE_SEL=0 and SENSE_2 < VLO, or Low if SNSE_SEL=1 and SENSE_2 > VHI
High if SNSE_SEL=0 and SENSE_3 < VLO, or Low if SNSE_SEL=1 and SENSE_3 > VHI
High if SNSE_SEL=0 and SENSE_4 < VLO, or Low if SNSE_SEL=1 and SENSE_4 > VHI
High if SNSE_SEL=0 and SENSE_5 < VLO, or Low if SNSE_SEL=1 and SENSE_5 > VHI
High if SNSE_SEL=0 and SENSE_6 < VLO, or Low if SNSE_SEL=1 and SENSE_6 > VHI
High if SNSE_SEL=0 and SENSE_7 < VLO, or Low if SNSE_SEL=1 and SENSE_7 > VHI
Reference, 0V
High if Driver 3 is attempting to source excess current
Drain node of high switch driver 3
Supply for DRV_0-3. The VDRV pin and the isolated backside pad should be connected for optimum
performance and power dissipation.
Drain node of high switch driver 2
High if Driver 2 is attempting to source excess current
High if Driver 1 is attempting to source excess current
Drain node of high switch driver 1
Drain node of high switch driver 0
High if Driver 0 is attempting to source excess current
When high, turns on Driver 3. DSEL_3 has an internal 30kΩ pull-down resistor
When high, turns on Driver 2. DSEL_2 has an internal 30kΩ pull-down resistor
When high, turns on Driver 1. DSEL_1 has an internal 30kΩ pull-down resistor
When high, turns on Driver 0. DSEL_0 has an internal 30kΩ pull-down resistor
High if any Driver is attempting to source excess current
If Low, SENSE pins are sensing Open/Gnd. If High, SENSE pins are sensing SUPPLY/Open
If THS_SEL is High, this pin sets the lower window comparator threshold
If THS_SEL is High, this pin sets the upper window comparator threshold
If THS_SEL is Low, comparator thresholds are set internally. THS_SEL has an internal 30kΩ pull-up
Logic supply. (3.0V - 5.5V)
HOLT INTEGRATED CIRCUITS
3










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