參數(shù)資料
型號(hào): MCZ33904A5EK
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 105/106頁(yè)
文件大?。?/td> 0K
描述: IC SYSTEM BASIS CHIP 32-SOIC
標(biāo)準(zhǔn)包裝: 42
應(yīng)用: 系統(tǒng)基礎(chǔ)芯片
接口: CAN,LIN
電源電壓: 5.5 V ~ 27 V
封裝/外殼: 32-BSOP(0.295",7.50mm 寬)裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 32-SOICW 裸露焊盤(pán)
包裝: 管件
安裝類型: 表面貼裝
Analog Integrated Circuit Device Data
98
Freescale Semiconductor
33903/4/5
TYPICAL APPLICATIONS
The following figure illustrates the application case
where two reverse battery diodes can be used for
optimization of the filtering and buffering capacitor at the
VDD pin. This allows using a minimum value capacitor at
the VDD pin to guarantee reset-free operation of the MCU
during the cranking pulse and temporary (50 ms) loss of the
VBAT supply.
Applications without an external ballast on VDD and
without using the VAUX regulator are illustrated as well.
Figure 49. Application Options
ex2: Split VSUP Supply
ex 4: No External Transistor - No VAUX
ex 3: No External Transistor, VDD ~100 mA Capability
ex1: Single VSUP Supply
Optimized solution for cranking pulses.
C1 is sized for MCU power supply buffer only.
VDD
VSUP2
VE
VB
VBAT
Q1
D1
VBAUX
VAUX
5.0 V/3.3 V
VSUP1
Q2
Partial View
VDD
VE
VB
VBAT
D1
VBAUX
VDD
VE
VB
VBAT
D1
VDD
VE
VB
VBAT
Q1
D2
VSUP2
VSUP1
VSUP2
VSUP1
VSUP2
VSUP1
D1
C1
C2
VCAUX
Q2
VAUX
VCAUX
Q2
VBAUX
VAUX
VCAUX
VBAUX
VAUX
VCAUX
Partial View
5.0 V/3.3 V
delivered by internal path transistor.
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