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參數(shù)資料
| 型號： | MC33129P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| 中文描述： | 1 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 347K |
| 代理商： | MC33129P |
MC34129 MC33129
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(VCC = 10 V, TA = 25
°
C [Note 1], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
PWM COMPARATOR
Input Offset Voltage (Vin = 1.25 V)
Input Bias Current
VIO
IIB
150
275
400
mV
–
–120
–250
μ
A
Propagation Delay, Ramp Input to Drive Output
tPLH(IN/DRV)
–
250
–
ns
SOFT–START
Capacitor Charge Current (Pin 12 = 0 V)
Ichg
VIO
VOL
0.75
1.2
1.50
μ
A
Buffer Input Offset Voltage (Vin = 1.25 V)
Buffer Output Voltage (ISink = 100
μ
A)
–
15
40
mV
–
0.15
0.225
V
FAULT TIMER
Restart Delay Time
tDLY
200
400
600
μ
s
START/RUN COMPARATOR
Threshold Voltage (Pin 12)
Vth
VH
VOL
–
2.0
–
V
Threshold Hysteresis Voltage (Pin 12)
–
350
–
mV
Output Voltage (ISink = 500
μ
A)
Output Off–State Leakage Current (VOH = 15 V)
Output Zener Voltage (IZ = 10 mA)
9.0
10
10.3
V
IS/R(leak)
VZ
–
0.4
2.0
μ
A
–
(VCC + 7.6)
–
V
OSCILLATOR
Frequency (RT = 25.5 k
, CT = 390 pF)
Capacitor CT Discharge Current (Pin 5 = 1.2 V)
Sync Input Current
High State (Vin = 2.0 V)
Low State (Vin = 0.8 V)
fOSC
Idischg
80
100
120
kHz
240
350
460
μ
A
IIH
IIL
–
–
40
15
125
35
μ
A
Sync Input Resistance
Rin
12.5
32
50
k
DRIVE OUTPUT
Output Voltage
High State (ISource = 200 mA)
Low State (ISource = 200 mA)
VOH
VOL
8.3
–
8.9
1.4
–
1.8
V
Low State Holding Current
IH
tr
tf
–
225
–
μ
A
Output Voltage Rise Time (CL = 500 pF)
Output Voltage Fall Time (CL = 500 pF)
Output Pull–Down Resistance
–
390
–
ns
–
30
–
ns
RPD
100
225
350
k
UNDERVOLTAGE LOCKOUT
Startup Threshold
Vth
VH
3.0
3.6
4.2
V
Hysteresis
5.0
10
15
%
TOTAL DEVICE
Power Supply Current
RT = 25.5 k
, CT = 390 pF, CL = 500 pF
ICC
1.0
2.5
4.0
mA
Power Supply Zener Voltage (IZ = 10 mA)
VZ
12
14.3
–
V
NOTE:
1.Tlow= 0
°
C for MC34129
–40
°
C for MC33129
Thigh= +70
°
C for MC34129
+85
°
C for MC33129
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