MC34262_11 Datasheet, PDF (3/19 Pages) ON Semiconductor – Power Factor Controllers

MC34262, MC33262
ELECTRICAL CHARACTERISTICS (continued) (V_CC = 12 V (Note 6), for typical values T_A = 25°C, for min/max values T_A is the
operating ambient temperature range that applies (Note 7), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
MULTIPLIER
Dynamic Input Voltage Range
Multiplier Input (Pin 3)
Compensation (Pin 2)
V
V_{Pin 3}
0 to 2.5
0 to 3.5
−
V_{Pin 2}
V_th(M) to
V_th(M) to
−
(V_th(M) + 1.0) (V_th(M) + 1.5)
Multiplier Gain (V_{Pin 3} = 0.5 V, V_{Pin 2} = V_th(M) + 1.0 V) (Note 8)
K
0.43
0.65
0.87
1/V
ZERO CURRENT DETECTOR
Input Threshold Voltage (V_in Increasing)
Hysteresis (V_in Decreasing)
Input Clamp Voltage
High State (I_DET = + 3.0 mA)
Low State (I_DET = − 3.0 mA)
CURRENT SENSE COMPARATOR
V_th
1.33
1.6
1.87
V
V_H
100
200
300
mV
V
V_IH
6.1
6.7
−
V_IL
0.3
0.7
1.0
Input Bias Current (V_{Pin 4} = 0 V)
Input Offset Voltage (V_{Pin 2} = 1.1 V, V_{Pin 3} = 0 V)
Maximum Current Sense Input Threshold (Note 9)
Delay to Output
DRIVE OUTPUT
I_IB
−
V_IO
−
V_th(max)
1.3
t_PHL(in/out)
−
− 0.15
9.0
1.5
200
−1.0
mA
25
mV
1.8
V
400
ns
Output Voltage (V_CC = 12 V)
Low State (I_Sink = 20 mA)
Low State (I_Sink = 200 mA)
High State (I_Source = 20 mA)
High State (I_Source = 200 mA)
V
V_OL
−
−
0.3
0.8
2.4
3.3
V_OH
9.8
10.3
−
7.8
8.4
−
Output Voltage (V_CC = 30 V)
High State (I_Source = 20 mA, C_L = 15 pF)
V_O(max)
V
14
16
18
Output Voltage Rise Time (C_L = 1.0 nF)
Output Voltage Fall Time (C_L = 1.0 nF)
Output Voltage with UVLO Activated
(V_CC = 7.0 V, I_Sink = 1.0 mA)
t_r
−
t_f
−
V_O(UVLO)
−
50
120
ns
50
120
ns
0.1
0.5
V
RESTART TIMER
Restart Time Delay
UNDERVOLTAGE LOCKOUT
t_DLY
200
620
−
ms
Startup Threshold (V_CC Increasing)
V_th(on)
11.5
13
14.5
V
Minimum Operating Voltage After Turn−On (V_CC Decreasing)
V_Shutdown
7.0
8.0
9.0
V
Hysteresis
V_H
3.8
5.0
6.2
V
TOTAL DEVICE
Power Supply Current
Startup (V_CC = 7.0 V)
Operating
Dynamic Operating (50 kHz, C_L = 1.0 nF)
I_CC
mA
−
0.25
0.4
−
6.5
12
−
9.0
20
Power Supply Zener Voltage (I_CC = 25 mA)
V_Z
30
36
5. Maximum package power dissipation limits must be observed.
6. Adjust V_CC above the startup threshold before setting to 12 V.
7. T_low = 0°C for MC34262
T_high = +85°C for MC34262
= −40°C for MC33262
= +105°C for MC33262.
8.
K
+
Pin 4 Threshold
VPin ₃ (VPin2 * Vth(M))
9. This parameter is measured with V_FB = 0 V, and V_{Pin 3} = 3.0 V.
−
V
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