AZ494B_05 Datasheet, PDF (4/12 Pages) BCD Semiconductor Manufacturing Limited – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

PULSE-WIDTH-MODULATION CONTROL CIRCUITS
Absolute Maximum Ratings (Note 1)
Data Sheet
AZ494B/D
Parameter
Supply Voltage (Note 2)
Amplifier Input Voltage
Collector Output Voltage
Collector Output Current
Package Thermal Impedance
(Note 3)
Symbol
V_CC
V_I
V_O
I_O
θ_JA
Lead Temperature 1.6mm from case for 10 seconds
Storage Temperature Range
ESD rating (Machine Model)
T_STG
Value
40
-0.3 to V_CC + 0.3
40
250
M Package
73
P Package
67
260
-65 to 150
200
Unit
V
V
V
mA
o_C/W
o_C
o_C
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum
Ratings"for extended periods may affect device reliability.
Note 2: All voltage values are with respect to the network ground terminal.
Note 3: Maximum power dissipation is a function of T_J(max), θ_JA and T_A. The maximum allowable power dissi-
pation at any allowable ambient temperature is P_D = ( T_J(max) - T_A ) / θ_JA. Operating at the absolute maximum T_J
of 150^oC can affect reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Supply Voltage
V_CC
7
36
V
Amplifier Input Voltage
V_I
-0.3
V_CC - 2
V
Collector Output Voltage
V_O
36
V
Collector Output Current
(Each Transistor)
200
mA
Current Into Feedback Terminal
0.3
mA
Oscillator Frequency
f_osc
300
KHz
Timing Capacitor
C_T
0.47
10000
nF
Timing Resistor
R_T
1.8
500
KΩ
Operating Free-Air Temperature
T_A
-40
85
o_C
Reference Output Current
I_REF
10
mA
Jun. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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