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SA305 Folha de dados(PDF) 3 Page - Cirrus Logic

Nome de Peças SA305
Descrição Electrónicos  PULSE WIDTH MODULATION AMPLIFIER
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Fabricante Electrônico  APEX [Cirrus Logic]
Página de início  http://www.cirrus.com
Logo APEX - Cirrus Logic

SA305 Folha de dados(HTML) 3 Page - Cirrus Logic

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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
3
PIN DESCRIPTIONS
Pin # Pin name
Description
10,21 Vs
High voltage supply (12V-60V)
17
Vdd
Logic supply (5V)
22
OutA
Half bridge output
13
OutB
Half bridge output
2
OutC
Half bridge output
1,23
PGND
Power ground, high current ground return path of the bridge outputs
11
SGND
Analog and logic circuits ground
19
DISABLE
Disable logic Input, CMOS. When high disables all six output MOSFETs and makes the FAULT output high.
Do not leave floating at any time.
18
Warning
Output pin goes high if Tj rises above 135°C and goes low again if T
J falls below 85°C.
8
FAULT
The output pin is high under the following conditions:
a) Short-Circuit and Over Current condition.
b) When T
J rises above 160°C until it falls below 110°C.
c) When V
S rises above 9.8V until it falls below 9.7V.
d) Disable pin is activated (pulled high)
This can be used as an interrupt to the microcontroller.
16
PWM_HA
CMOS logic input: When HIGH, indicates the Pchannel of output A is to be turned on.
15
PWM_LA
CMOS logic input: When HIGH, indicates the Nchannel of output A is to be turned on.
12
PWM_HB
CMOS logic input: When HIGH, indicates the Pchannel of output B is to be turned on.
14
PWM_LB
CMOS logic input: When HIGH, indicates the Nchannel of output B is to be turned on.
7
PWM_HC
CMOS logic input: When HIGH, indicates the Pchannel of output C is to be turned on.
5
PWM_LC
CMOS logic input: When HIGH, indicates the Nchannel of output C is to be turned on.
20
IMON_A
Current monitor output, approximate current 1/4100 of Phase A current
3
IMON_B
Current monitor output, approximate current 1/3500 of Phase B current
4
IMON_C
Current monitor output, approximate current 1/3800 of Phase C current
9
OFF
I/O Pin. Disables all Fault Mechanisms (except under voltage lockout) when pulled LOW. Can be used as a
latched fault output but does not indicate undervoltage lockout. Leave this pin floating for normal operation.
Do not pull HIGH.
All inputs are CMOS levels. Inputs can accept CMOS levels as low as 3.3 volts.
CMOS logic inputs cannot be left floating
at any time.
PIN
DESCRIPTIONS
SA305


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