AZ494BMTR 查看數據表（PDF） - BCD Semiconductor
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AZ494BMTR Datasheet PDF : 12 Pages
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Data Sheet
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
Electrical Characteristics
TA = 25oC, VCC=15V, f=10KHz unless otherwise noted.
Parameter
Symbol Conditions (Note 4)
Reference Section
Output Reference
Voltage
for AZ494B VREF IREF=1mA
for AZ494D VREF IREF=1mA
AZ494B/D
Min Typ Max Unit
4.875 4.95 5.025 V
4.925 5.0 5.075 V
Line Regulation
RLINE VCC = 7V to 36V
2
25
Load Regulation
RLOAD IREF=1mA to 10mA
1
15
Short-Circuit Output Current(Note 5)
ISC VREF = 0V
25
Oscillator Section, CT = 0.01µF, RT = 12KΩ (See Figure 4)
Frequency
fosc
10
Standard Deviation of Frequency
(Note 6)
All values of VCC, CT, RT and TA
100
constant
Frequency Change with Voltage
VCC=7V to 36V, TA = 25oC
1
Frequency Change with Temperature
∆TA= MIN to MAX
10
(Note 7)
Error-Amplifier Section
Input Offset Voltage
VIO VO (FEEDBACK) = 2.5V
2
10
Input Offset Current
IIO VO (FEEDBACK) = 2.5V
25 250
Input Bias Current
IBIAS VO (FEEDBACK) = 2.5V
0.2 1
Common-Mode Input Voltage Range
VCM VCC=7V to 36V
-0.3
VCC-
2
Large-Signal Open-Loop Voltage
Gain
AVO ∆VO = 3V, RL =2KΩ,
VO =0.5V to 3.5V
70 95
Unity-Gain Bandwidth
GB
800
Common-Mode Rejection Ratio
CMRR VCC=7V to 36V
65 80
Output Sink Current (FEEDBACK)
ISINK VID = -15mV to -5V,
V(FEEDBACK) = 0.7V
- 0.3 - 0.7
Output Source Current (FEEDBACK) ISOURCE VID = 15mV to 5V, V(FEED- 2
BACK) = 3.5V
Output Section
Collector Off-State Current
IC, OFF VCE = 36V, VCC=36V
2 100
Emitter Off-State Current
IE, OFF VCC = VC = 36V, VE = 0
-100
Collector-Emitter
Saturation Voltage
Common
Emitter
Emitter
Follower
VE = 0, IC =200mA
VO (C1 or C2) = 15V,
IE = -200mA
1.1 1.3
1.5 2.5
mV
mV
mA
KHz
Hz/KHz
Hz/KHz
Hz/KHz
mV
nA
µA
V
dB
KHz
dB
mA
mA
µA
µA
V
Jun. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
5
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