Datasheet

PCA9701_PCA9702 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 7 — 26 September 2014 10 of 29
NXP Semiconductors
PCA9701; PCA9702
18 V tolerant SPI 16-bit/8-bit GPI with INT
8. Application design-in information
8.1 General application
8.2 Automotive application
Supports:
• 12 V battery (8 V to 16 V)
• Double battery (16 V to 32 V)
• Reverse battery (8 V to 16 V)
• Jump start (27 V for 60 seconds)
• Load dump (40 V)
(1) n = 15 for PCA9701; n = 7 for PCA9702
Fig 8. Typical application
CS
SCLK
SDIN
SDOUT
002aac423
IN0
IN1
INn
(1)
PCA9701/
PCA9702
V
SS
V
DD
INT_EN
INT
CONTROLLER
OR
PROCESSOR
10 kΩ
2.5 V to 5.5 V
1.5 kΩ
100 kΩ
relay
18 V
100 kΩ
18 V
10 kΩ
5 V
500 kΩ
180 V
50 kΩ
IN2
open