MC34716 Ver la hoja de datos (PDF) - Freescale Semiconductor
Número de pieza
componentes Descripción
Fabricante
MC34716 Datasheet PDF : 25 Pages
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PIN CONNECTIONS
PIN CONNECTIONS
26 25 24 23 22 21 20 19
BOOT1 1
PVIN1
2
PVIN1
SW1
3
SW1
PGND1
4
PGND1
VOUT1 5
Transparent
Top View
18 BOOT2
PVIN2
17
PVIN2
SW2
16
SW2
PGND2
15
PGND2
14 VOUT2
6 7 8 9 10 11 12 13
Figure 3. 34716 Pin Connections
Table 1. 34716 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 11.
Pin Number Pin Name Pin Function Formal Name
Definition
1
BOOT1
Passive
Bootstrap
Channel 1 Bootstrap capacitor input pin
2
PVIN1
Supply Power Input Voltage Channel 1 Buck converter power input
3
SW1
Input/Output Switching Node Channel 1 Buck converter switching node
4
PGND1
Ground
Power Ground
Channel 1 Buck converter and discharge MOSFETs power ground
5
VOUT1
Input
Output Voltage
Channel 1 Buck converter output voltage discharge pin
Discharge Path
6
INV1
Input
Error Amplifier
Channel 1 Buck converter error amplifier inverting input
Inverting Input
7
COMP1
Input
Buck Convertor Channel 1 Buck converter external compensation network input
Compensation Input
8
VREFIN
Input
Reference Voltage Voltage tracking reference voltage input
Input
9
VREFOUT
Output
Reference Voltage This is a buffered reference voltage output
Output
10
PG
Output
Power Good Output It is an active low open drain power good status reporting output
Signal
11
SD
Input
Shutdown Input Shutdown mode input control pin
12
COMP2
Input
Buck Convertor Channel 2 Buck converter external compensation network input
Compensation Input
13
INV2
Input
Error Amplifier
Channel 2 Buck converter error amplifier inverting input
Inverting Input
Analog Integrated Circuit Device Data
Freescale Semiconductor
34716
3
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