MC33466H-50LT1 查看數據表（PDF） - ON Semiconductor
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MC33466H-50LT1 Datasheet PDF : 16 Pages
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Vin
Cin
L
3
Lx
MC33466
MC33466H–XXJT1
D
VLx Limiter
Drive
PWM
Controller
Phase
50 kHz
Comp
Oscillator
Vref
Soft-Start
2
Output
(Voltage
Feedback)
VO
CO
1 Gnd
L
Vin
Cin
Rb
3
Q
EXT
Cb
MC33466H–XXLT1
D
Drive
PWM
Controller
100 kHz
Oscillator
Phase
Comp
Soft-Start
2
Output
(Voltage
Feedback)
Vref
1 Gnd
VO
CO
XX Denotes Output Voltage
This device contains 100 active transistors.
Figure 1. Representative Block Diagrams
MAXIMUM RATINGS (TC = 25°C, unless otherwise noted.)
Rating
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply Voltage (Transient)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply Voltage (Operating)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ External Pin Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Lx Pin Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ EXT Pin Source/Sink Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Lx Pin Sink Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Dissipation and Thermal Characteristics
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ H Suffix, Plastic Package Case 1213 (SOT–89)
Symbol
VO
VO
VEXT
VLx
IEXT
ILx
Value
Unit
12
V
8.0
V
–0.3 to VO
V
12
V
"50
mA
250
mA
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction–to–Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Junction Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Ambient Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ NOTE: ESD data available upon request.
PD
RθJA
TJ
TA
Tstg
500
200
125
–30 to +80
–40 to +125
mW
°C/W
°C
°C
°C
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