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參數(shù)資料
| 型號： | TDA4605 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 116K |
| 代理商： | TDA4605 |
TDA4605
3/7
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
ELECTRICAL CHARACTERISTICS (VCC = 10V, Tamb = 25
oC, unless otherwise specified)
Symbol
Parameter
Pin
Value
Unit
V1
Supply Voltage
1
-0.3, +3
V
V2
2
-0.3
V
V3
3
-0.3
V
V4
4
-0.3
V
V6
6
-0.3, +20
V
V7
7
-0.3
V
I1
Supply Current
13
mA
I2
23
mA
I3
33
mA
I4
tp ≤ 50s, V ≤ 0.1
4
- 1.5
A
I5
tp ≤ 50s, V ≤ 0.1
5
-0.5, +1.5
A
I6
tp ≤ 50s, V ≤ 0.1
6
0.5
A
I7
73
mA
I8
8
-3, +3
mA
Tj
Junction Temperature (autom. thermal disjunction)
+125
oC
Tstg
Storage Temperature
-40, +125
oC
Symbol
Parameter
Value
Unit
Rth(j-a)
Junction-ambient Thermal Resistance
80
oC/W
Rth(j-c)
Junction-case Thermal Resistance
45
oC/W
Tamb
Ambient Temperature
-20, +85
oC
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
START-UP HYSTERESIS
I6E0
Start-up Current Drain
V6 = V6E
0.6
0.8
mA
V6E
Switch-on Voltage
11
12
13
V
V6A
Switch-off Voltage
4.5
5
5.5
V
I6E1
Switch-on Current
V6 = V6E
11
mA
I6A1
Switch-off Current
V6 = V6A
10
mA
VOLTAGE CLAMP (V6 = 10V, IC Switched off)
V2(Max.)
At Pin 2 (V6 < V6E)I2 = 1mA
5.6
6.6
9
V
V3(Max.)
At Pin 3 (V6 < V6E)I3 = 1mA
5.6
6.6
9
V
CONTROL RANGE
V1R
Control Input Voltage
400
410 420 mV
-VR
Voltage Gain of the Control Circuit in the Control Range
VR = d(V2S - V2B)/dV1
f = 1kHz
43
dB
PRIMARY CURRENT SIMULATION VOLTAGE
V2B
Basic Value
0.955 1.00 1.03
V
OVERLOAD RANGE AND SHORT CIRCUIT OPERATION
V2O
Peak Value in the Range of Secondary Overload
V1 = V1R - 10mV
2.8
2.95 3.1
V
DV2
Maximum Ramp Amplitude
V2O - V2B
1.82 1.95 2.08
V
V2S
Peak Value in the Range of Secondary Short
Circuit Operation
V1 = 0
2.3
2.5
2.7
V
FOLDBACK POINT CORRECTION
-I2
Foldback Point Correction Current
V3 = 3.7V
300
500 650
A
1
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