MC35XS3400 Datasheet, PDF (3/45 Pages) Freescale Semiconductor, Inc – Quad High Side Switch (Quad 35mΩ)

Transparent Top View of Package
PIN CONNECTIONS
13 12 11 10 9 8 7 6 5 4 3 2 1
SO 16
GND 17
HS3 18
14
GND
24 FSI
23 GND
22 HS2
15
VPWR
PIN CONNECTIONS
19
20
21
HS1
NC
HS0
Figure 3. 35XS3400 Pin Connections
Table 1. 35XS3400 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 17.
Pin
Number
Pin Name
Pin
Function
Formal Name
Definition
1
CSNS
Output
Output Current
This pin reports an analog value proportional to the designated HS[0:3] output
Monitoring
current or the temperature of the GND flag (pin 14). It is used externally to
generate a ground-referenced voltage for the microcontroller (MCU) . Current
recopy and temperature feedback is SPI programmable.
2
IN0
Input
Direct Inputs
Each direct input controls the device mode. The IN[0 : 3] high side input pins
3
IN1
are used to directly control HS0 : HS3 high side output pins.
5
IN2
6
IN3
The PWM frequency can be generated from IN0 pin to PWM module in case
the external clock is set.
7
FS
Output
Fault Status
This pin is an open drain configured output requiring an external pull-up
(Active Low)
resistor to V_DD for fault reporting.
8
WAKE
Input
Wake
This input pin controls the device mode.
9
RST
Input
Reset
This input pin is used to initialize the device configuration and fault registers,
as well as place the device in a low-current Sleep mode.
10
CS
Input
11
SCLK
Input
Chip Select
(Active Low)
Serial Clock
This input pin is connected to a chip select output of a master microcontroller
(MCU).
This input pin is connected to the MCU providing the required bit shift clock for
SPI communication.
12
SI
Input
Serial Input
This pin is a command data input pin connected to the SPI serial data output
of the MCU or to the SO pin of the previous device of a daisy-chain of devices.
13
VDD
Power Digital Drain Voltage ^{This pin is an external voltage input pin used to supply power interfaces to the}
SPI bus.
35XS3400
Analog Integrated Circuit Device Data
Freescale Semiconductor
3