參數(shù)資料
型號: PC33394FC
廠商: MOTOROLA INC
元件分類: 穩(wěn)壓器
英文描述: 1.2 A SWITCHING CONTROLLER, 220 kHz SWITCHING FREQ-MAX, PQCC44
封裝: PLASTIC, QFN-44
文件頁數(shù): 50/51頁
文件大?。?/td> 543K
代理商: PC33394FC
33394
8
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
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
VPRE
5.4
5.6
5.8
V
Buck to Boost Mode Threshold Voltage
(Note 1)
VBATthd
6.7
V
Boost to Buck Mode Threshold Voltage
(Note 1)
VBATthu
7.2
V
N–channel power MOSFET SW1
SW1 Drain–Source Breakdown Voltage
(Note 1)
BVDSS
50
V
SW1 Continuous Drain Current
IDSW1
–2.75
A
SW1 Drain–Source Current Limit
IscSW1
–2.5
–3.0
–3.5
A
SW1 Drain–Source On–Resistance; ID = 1.0 A, VBAT = 9.0 V
RDS(on)
300
m
Error Amplifier (Design Information Only)
Input Offset Voltage
(Note 1)
VOS
20
mV
DC Open Loop Gain
(Note 1)
AVOL
80
dB
Unity Gain Bandwidth
(Note 1)
BW
1.5
MHz
Output Voltage Swing — High Level
(Note 1)
VOH
4.2
V
Output Voltage Swing — Low Level
(Note 1)
VOL
0.4
V
Output Source Current
(Note 1)
IOUT
1.0
mA
Output Sink Current
(Note 1)
IOUT
200
A
Ramp Generator
Sawtooth Peak Voltage
(Note 1)
VOSC
3.5
V
Sawtooth Peak–to–Peak Voltage
(Note 1)
VOSCp–p
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
TBD
mA
SW2G Sink Continuous Current
Isink
200
300
400
mA
AC CHARACTERISTICS:
BUCK CONVERTER
Oscillator Frequency
Freq
180
200
220
kHz
SW1 Switch Turn–ON Time
(Note 1)
tT–ON
TBD
ns
SW1 Switch Turn–OFF Time
(Note 1)
tT–OFF
TBD
ns
SW2G Switch Turn–ON Time, Cgate = pF
(Note 1)
tT–ON
TBD
ns
SW2G Switch Turn–OFF Time, Cgate = pF
(Note 1)
tT–OFF
TBD
ns
OFF Time
(Note 1)
tOFF
1.25
s
Duty cycle
(Note 1)
d
75
%
NOTE:
1. Guaranteed by design but not production tested.
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PC33394FC 1.2 A SWITCHING CONTROLLER, 220 kHz SWITCHING FREQ-MAX, PQCC44
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