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參數(shù)資料
| 型號(hào)： | TC38C43 |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | BiCMOS CURRENT MODE PWM CONTROLLERS |
| 中文描述： | 的BiCMOS電流模式PWM控制器 |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大小： | 83K |
| 代理商： | TC38C43 |
4-95
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
Output Section
R
DS (ON)
R
DS (ON)
Rise Time
Fall Time
Cross Conduction
V
DD
Ma
Undervoltage Lockout Section
Start Threshold
Undervoltage Threshold
PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
Supply Current
Start Up
Operating
I
SINK
= 20mA
I
SOURCE
= 20mA
C
L
= 1nF (Note 1)
C
L
= 1nF (Note 1)
In Coulombs (Note 1)
Note 1
—
—
—
—
—
—
7
11
40
30
6.5
—
15
20
60
60
—
18
—
—
—
—
—
—
7
11
35
30
6.5
—
15
15
60
40
—
18
nsec
nsec
nC
V
x8C43
x8C43
7.9
7.2
8.4
7.6
8.8
7.9
7.9
7.2
8.4
7.6
8.8
7.9
V
V
x8C43 (Note 1)
95
97
100
0
95
97
100
0
%
%
T
A
= 25
°
C, V
IN
< V
UV
; Figure 1
V
FB
= V(I
SENSE
) = 0V; Figure 4
50
170
1
300
2
50
170
1
300
1.5
μ
A
mA
ELECTRICAL CHARACTERISTICS
(Cont)
:
unless otherwise stated, these specifications apply over specified
temperature range. V
IN
= V
DD
= 15V; R
T
= 71 k
; C
T
= 150 pF.
TC18C4X
TC28C4X
Min
TC38C4X
Min
Parameter
Test Conditions
Typ
Max
Typ
Max
Units
where 0
≤
V(I
SENSE
)
≤
0.8V
4. Output frequency equals oscillator frequency for the
x8C43.
5. PSRR of V
REF
, Error Amp and PWM Comparator
combination.
NOTES:
1. These parameters, although guaranteed over the
recommended operating conditions, are not tested in
production.
2. Parameter measured at trip point of latch.
3. Gain ratio is defined as:
V
COMP
V(I
SENSE
)
TelCom Semiconductor reserves the right to make changes in the circuitry or specifications detailed in this manual at any time without notice. Minimums
and maximums are guaranteed. All other specifications are intended as guidelines only. TelCom Semiconductor assumes no responsibility for the use of
any circuits described herein and makes no representations that they are free from patent infringement.
*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above
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 above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute
Maximum Rating Conditions for extended periods may affect device reliability.
PIN DESCRIPTION
Pin No.
8-Pin
Pin No
14-Pin
Pin No
16-Pin
Symbol
Description
2
4
1
3
5
1
2
3
4
5
NC
NC
No Connection
No Connection
Compensation of the feedback loop response.
Feedback of voltage to error amplifier to regulate voltage.
For sensing pass transistor current and terminate drive when current
limit threshold is reached at this pin.
Capacitor and resistor input to set oscillator frequency of this PWM
controller. The resistor is connected from V
REF
output to R
T
/C
T.
The capacitor is connected from R
T
/C
T
to ANALOG GND.
1
2
3
CMPTR
V
FB
I
SENSE
4
7
6
R
T
/C
T
TC18C43
TC28C43
TC38C43
BiCMOS CURRENT MODE
PWM CONTROLLERS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC38C43COE | 制造商:TELCOM 制造商全稱(chēng):TelCom Semiconductor, Inc 功能描述:BiCMOS CURRENT MODE PWM CONTROLLERS |
| TC38C43CPA | 制造商:TELCOM 制造商全稱(chēng):TelCom Semiconductor, Inc 功能描述:BiCMOS CURRENT MODE PWM CONTROLLERS |
| TC38C43CPD | 制造商:TELCOM 制造商全稱(chēng):TelCom Semiconductor, Inc 功能描述:BiCMOS CURRENT MODE PWM CONTROLLERS |
| TC38C46 | 制造商:TELCOM 制造商全稱(chēng):TelCom Semiconductor, Inc 功能描述:CMOS CURRENT MODE PWM CONTROLLER |
| TC38C46COE | 制造商:TELCOM 制造商全稱(chēng):TelCom Semiconductor, Inc 功能描述:CMOS CURRENT MODE PWM CONTROLLER |
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