PIN CONNECTIONS
PIN CONNECTIONS
Transparent Top View of Package
WAKE
CSNS
1
24
14
GND
23
22
FSI
GND
HS2
Definition
This pin reports an analog value proportional to the designated HS[0:3] output
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.
Each direct input controls the device mode. The IN[0 : 3] high side input pins
are used to directly control HS0 : HS3 high side output pins.
The PWM frequency can be generated from IN0 pin to PWM module in case
the external clock is set.
Output
Input
Input
Input
Input
Input
Power
Fault Status
(Active Low)
Wake
Reset
Chip Select
(Active Low)
Serial Clock
Serial Input
Digital Drain Voltage
This pin is an open drain configured output requiring an external pull-up
resistor to V
DD
for fault reporting.
This input pin controls the device mode.
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.
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.
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.
This pin is an external voltage input pin used to supply power interfaces to the
SPI bus.
SCLK
VDD
RST
IN3
IN2
IN1
3
13 12 11 10
SO
GND
16
17
18
9
8
7
6
5
4
HS3
15
VPWR
19
HS1
20
NC
21
HS0
Figure 3. 15XS3400 Pin Connections
Table 2. 15XS3400 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page
Pin
Number
1
Pin Name
CSNS
Pin
Function
Output
Formal Name
Output Current
Monitoring
2
3
5
6
7
8
9
10
11
12
13
IN0
IN1
IN2
IN3
FS
WAKE
RST
CS
SCLK
SI
VDD
Input
Direct Inputs
15XS3400
IN0
2
NC
CS
FS
SI
4
Analog Integrated Circuit Device Data
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
