FreescalMeCS34e1m29iMcCo3n3d1u29ctor, Inc.
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
Propagation Delay, Ramp Input to Drive Output
VIO
150
IIB
–
tPLH(IN/DRV)
–
275
–120
250
400
mV
–250
µA
–
ns
SOFT–START
Capacitor Charge Current (Pin 12 = 0 V)
Buffer Input Offset Voltage (Vin = 1.25 V)
Buffer Output Voltage (ISink = 100 µA)
Ichg
0.75
1.2
1.50
µA
VIO
–
15
40
mV
VOL
–
0.15
0.225
V
FAULT TIMER
Restart Delay Time
tDLY
200
400
600
µs
START/RUN COMPARATOR
Threshold Voltage (Pin 12)
Vth
–
2.0
–
V
Threshold Hysteresis Voltage (Pin 12)
Output Voltage (ISink = 500 µA)
Output Off–State Leakage Current (VOH = 15 V)
Output Zener Voltage (IZ = 10 mA)
VH
VOL
IS/R(leak)
VZ
–
350
–
mV
9.0
10
10.3
V
–
0.4
2.0
µA
–
(VCC + 7.6)
–
V
OSCILLATOR
Frequency (RT = 25.5 kΩ, 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
80
100
120
kHz
Idischg
240
350
460
µA
µA
IIH
–
40
125
IIL
–
15
35
Sync Input Resistance
Rin
12.5
32
50
kΩ
DRIVE OUTPUT
Output Voltage
High State (ISource = 200 mA)
Low State (ISource = 200 mA)
V
VOH
8.3
8.9
–
VOL
–
1.4
1.8
Low State Holding Current
IH
–
225
–
µA
Output Voltage Rise Time (CL = 500 pF)
Output Voltage Fall Time (CL = 500 pF)
Output Pull–Down Resistance
tr
–
390
–
ns
tf
–
30
–
ns
RPD
100
225
350
kΩ
UNDERVOLTAGE LOCKOUT
Startup Threshold
Vth
3.0
3.6
4.2
V
Hysteresis
VH
5.0
10
15
%
TOTAL DEVICE
Power Supply Current
RT = 25.5 kΩ, 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
MOTOROLA ANALOG IC DEVICEFDoArTMA ore Information On This Product,
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