参数资料
型号: TL594CDTB
厂商: ON Semiconductor
文件页数: 3/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 16TSSOP
产品变化通告: Product Obsolescence 14/Apr/2010
标准包装: 96
系列: SWITCHMODE™
PWM 型: 电压模式
输出数: 1
频率 - 最大: 300kHz
占空比: 50%
电源电压: 7 V ~ 40 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
TL594
ELECTRICAL CHARACTERISTICS (V CC = 15 V, C T = 0.01 m F, R T = 12 k W , unless otherwise noted.)
For typical values T A = 25 ° C, for min/max values T A is the operating ambient temperature range that applies, unless otherwise noted.
Characteristics
Symbol
Min
Typ
Max
Unit
PWM COMPARATOR SECTION (Test Circuit Figure 11)
Input Threshold Voltage (Zero Duty Cycle)
Input Sink Current (V Pin 3 = 0.7 V)
V TH
I I?
?
0.3
3.6
0.7
4.5
?
V
mA
DEADTIME CONTROL SECTION (Test Circuit Figure 11)
Input Bias Current (Pin 4) (V Pin 4 = 0 V to 5.25 V)
Maximum Duty Cycle, Each Output, Push?Pull Mode
(V Pin 4 = 0 V, C T = 0.01 m F, R T = 12 k W )
(V Pin 4 = 0 V, C T = 0.001 m F, R T = 30 k W )
I IB (DT)
DC max
?
45
?
?2.0
48
45
?10
50
?
m A
%
Input Threshold Voltage (Pin 4)
V TH
V
(Zero Duty Cycle)
(Maximum Duty Cycle)
?
0
2.8
?
3.3
?
OSCILLATOR SECTION
Frequency
(C T = 0.001 m F, R T = 30 k W )
(C T = 0.01 m F, R T = 12 k W , T A = 25 ° C)
(C T = 0.01 m F, R T = 12 k W , T A = T low to T high )
Standard Deviation of Frequency* (C T = 0.001 m F, R T = 30 k W )
Frequency Change with Voltage (V CC = 7.0 V to 40 V, T A = 25 ° C)
Frequency Change with Temperature
( D T A = T low to T high , C T = 0.01 m F, R T = 12 k W )
f osc
σ f osc
D f osc ( D V)
D f osc ( D T)
?
9.2
9.0
?
?
?
40
10
?
1.5
0.2
4.0
?
10.8
12
?
1.0
?
kHz
%
%
%
UNDERVOLTAGE LOCKOUT SECTION
Turn?On Threshold (V CC Increasing, I ref = 1.0 mA)
T A = 25 ° C
T A = T low to T high
V th
4.0
3.5
5.2
?
6.0
6.5
V
Hysteresis
V H
mV
TL594C,I
TL594M
100
50
150
150
300
300
TOTAL DEVICE
Standby Supply Current (Pin 6 at V ref , All other inputs and outputs open)
I CC
mA
(V CC = 15 V)
(V CC = 40 V)
Average Supply Current (V Pin 4 = 2.0 V, C T = 0.01 m F, R T = 12 k W ,
V CC = 15 V, See Figure 11)
?
?
?
8.0
8.0
11
15
18
?
mA
*Standard deviation is a measure of the statistical distribution about the mean as derived from the formula, σ
N
Σ (X n ? X) 2
n=1
N?1
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