UJA1079ATW/3V3/WD, NXP Semiconductors, UJA1079ATW/3V3/WD, Datasheet - Page 20

• Manufacturer Part Number: UJA1079ATW/3V3/WD,
• Description: IC SBC LIN 3.3V 32HTSSOP
• Manufacturer: NXP Semiconductors

Specifications of UJA1079ATW/3V3/WD,

• Controller Type: System Basis Chip
• Interface: SPI
• Voltage - Supply: 4.5 V ~ 28 V
• Current - Supply: 75µA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-TSSOP Exposed Pad, 32-eTSSOP, 32-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
UJA1079A
Product data sheet
Figure 7
current of 250 mA with PDC = 0. Any additional load current requirement will be supplied
by the PNP transistor, up to its current limit. If the load current continues to rise, I
increase above the selected PDC threshold (to a maximum of 250 mA).
For a fast ramping load current, V1 will deliver the required load current (to a maximum of
250 mA) until the PNP transistor has switched on. Once the transistor has been activated,
V1 will deliver 85 mA (PDC = 0) with the transistor contributing the balance of the load
current (see
Fig 7.
Fig 8.
current
current
PNP
load
illustrates how V1 and the PNP transistor combine to supply a slow ramping load
PNP
current
V1 and PNP currents at a slow ramping load current of 250 mA (PDC = 0)
V1 and PNP currents at a fast ramping load current of 250 mA (PDC = 0)
I
V1
I
V1
load
current
I
(PDC = 0)
Figure
th(act)PNP
0 mA
I
(PDC = 0)
th(act)PNP
All information provided in this document is subject to legal disclaimers.
−165 mA
250 mA
250 mA
165 mA
8).
= 85 mA
= 85 mA
Rev. 2 — 31 January 2011
85 mA
250 mA
165 mA
I
(PDC = 0)
th(deact)PNP
= 50 mA
LIN core system basis chip
UJA1079A
215 mA
© NXP B.V. 2011. All rights reserved.
015aaa075
015aaa111
50 mA
V1
20 of 46
will