TDA 16846
TDA 16847
5.2
Characteristics (cont’d)
Unless otherwise stated, – 25 °C < Tj < 125 °C, VCC = 12 V
Parameter
Symbol Limit Values Unit Test Condition
T12 Charge time
T13 Charge time
Off-time
Bias current Pin 1
Zero crossing threshold
(Pin 3)
TC1
TC1
TD1MAX.
–
–
min. typ. max.
0.85 1.0 1.3 µs
1.9 2.4 3.0 µs
65 72 80 µs
– 1.1 – 0.4 – µA
15 25 35 mV
V3 > 3 V,
C1 = 680 pF,
R1 = 100 kΩ
V3 < 2 V,
C1 = 680 pF,
R1 = 100 kΩ
C1 = 680 pF,
R1 = 100 kΩ
–
–
Delay to switch-on
–
280 350 480 ns –
Bias current Pin 3
–
– 2 – 1.2 –
µA V3 < 25 mV
Error Amplifier EA (Pin 3, Pin 4)
Input threshold (Pin 3)
Bias current Pin 3
Soft-start charge current
(Pin 4)
VEATH
–
–
4.85 5
5.15 V
–
– 0.9 –
µA
– 2.5 – 1.8 – 1.2 µA
–
V3 > 3 V
–
Opto Coupler Input (Pin 5)
Input voltage range
V5
Pull high resistor to VREF
R1
0.3 –
15 20
6 V–
25 kΩ –
Data Sheet
21
2000-01-14