参数资料
型号: MC33394
厂商: 飞思卡尔半导体(中国)有限公司
元件分类: CAN
英文描述: Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transceiver(带有多个线性稳压器和高速CAN收发器的开关方式电源)
中文描述: 开关电源的多线性稳压器和高速CAN收发器(带有多个线性稳压器和高速的CAN收发器的开关方式电源)
文件页数: 8/44页
文件大小: 641K
代理商: MC33394
8
Go to: www.freescale.com
3. ELECTRICAL CHARACTERISTICS
(–40
°
C
TA
+125
°
C; +4.0 V
VBAT
+26.5 V using the 33394 typical application
circuit – see Figure 1, unless otherwise noted.)
Characteristic
Symbol
Min.
Typ.
Max.
Unit
DC CHARACTERISTICS:
BUCK CONVERTER
Buck Converter Output Voltage, VBAT = 7.5V to 18V; ILOAD=500mA
Buck to Boost Mode Threshold Voltage
VPRE
5.4
5.6
5.8
V
(Note 1)
VBATthd
VBATthu
6.7
V
Boost to Buck Mode Threshold Voltage
(Note 1)
7.2
V
N–channel power MOSFET SW1
SW1 Drain–Source Breakdown Voltage
(Note 1)
BVDSS
IDSW1
IscSW1
RDS(on)
50
V
SW1 Continuous Drain Current
–2.75
A
SW1 Drain–Source Current Limit
–2.5
–3.0
–3.5
A
SW1 Drain–Source On–Resistance; ID = 1.0 A, VBAT = 9.0 V
Error Amplifier (Design Information Only)
300
m
Input Offset Voltage
(Note 1)
VOS
AVOL
BW
20
mV
DC Open Loop Gain
(Note 1)
80
dB
Unity Gain Bandwidth
(Note 1)
1.5
MHz
Output Voltage Swing — High Level
(Note 1)
VOH
VOL
IOUT
IOUT
4.2
V
Output Voltage Swing — Low Level
(Note 1)
0.4
V
Output Source Current
(Note 1)
1.0
mA
Output Sink Current
(Note 1)
200
μ
A
Ramp Generator
Sawtooth Peak Voltage
(Note 1)
VOSC
VOSCp–p
3.5
V
Sawtooth Peak–to–Peak Voltage
(Note 1)
3.0
V
BOOST CONVERTER
External Power MOSFET Gate Drive SW2G
Boost Converter Output Voltage, VBAT = 4.5 V to 6.0 V
(Note 1)
VPRE
5.9
6.0
6.6
V
SW2G Output Voltage, Power MOSFET On
(Note 1)
Vg
VPRE
V
SW2G Source Continuous Current
(Note 1)
Isource
Isink
TBD
mA
SW2G Sink Continuous Current
200
300
400
mA
AC CHARACTERISTICS:
BUCK CONVERTER
Oscillator Frequency
Freq
180
200
220
kHz
SW1 Switch Turn–ON Time
(Note 1)
tT–ON
tT–OFF
tT–ON
tT–OFF
tOFF
d
TBD
ns
SW1 Switch Turn–OFF Time
(Note 1)
TBD
ns
SW2G Switch Turn–ON Time, Cgate = pF
SW2G Switch Turn–OFF Time, Cgate = pF
OFF Time
(Note 1)
TBD
ns
(Note 1)
TBD
ns
(Note 1)
1.25
μ
s
Duty cycle
(Note 1)
75
%
NOTE:
1. Guaranteed by design but not production tested.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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