參數(shù)資料
型號(hào)： TL384xP
廠商： Texas Instruments, Inc.
英文描述： 60K FLASH, 4K RAM, 64PIN
中文描述： 電流模式PWM控制器
文件頁(yè)數(shù)： 7/12頁(yè)
文件大小： 171K
代理商： TL384XP
TL284x, TL384x
CURRENT-MODE PWMCONTROLLERS
SLVS038E – JANUARY 1989 – REVISED DECEMBER 1999
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, V
CC
= 15 V (see Note 4), R
T
= 10 k
, C
T
= 3.3 nF, T
A
= 25
°
C (unless otherwise
specified) (continued)
error-amplifier section
PARAMETER
TEST CONDITIONS
TL384xY
TYP
UNIT
MIN
MAX
Feedback input voltage
COMP at 2.5 V
2.50
V
μ
A
dB
Input bias current
–0.3
Open-loop voltage amplification
VO = 2 V to 4 V
90
Gain-bandwidth product
1
MHz
Supply-voltage rejection ratio
VCC = 12 V to 25 V
VFB at 2.7 V,
70
dB
Output sink current
COMP at 1.1 V
6
mA
Output source current
VFB at 2.3 V,
COMP at 5 V
RL = 15 k
to GND
RL = 15 k
to GND
–0.8
mA
High-level output voltage
VFB at 2.3 V,
6
V
Low-level output voltage
VFB at 2.7 V,
0.7
V
NOTE 4: Adjust VCC above the start threshold before setting it to 15 V.
current-sense section
PARAMETER
TEST CONDITIONS
TL384xY
TYP
UNIT
MIN
MAX
Voltage amplification
See Notes 6 and 7
3
V/V
Current-sense comparator threshold
COMP at 5 V,
See Note 6
1
V
Supply-voltage rejection ratio
VCC = 12 V to 25 V,
See Note 6
70
dB
μ
A
ns
Input bias current
–2
Delay time to output
150
NOTES:
4. Adjust VCC above the start threshold before setting it to 15 V.
6. These parameters are measured at the trip point of the latch, with VFB at 0 V.
7. Voltage amplification is measured between ISENSE and COMP, with the input changing from 0 V to 0.8 V.
output section
PARAMETER
TEST CONDITIONS
TL384xY
TYP
13.5
UNIT
MIN
MAX
High level output voltage
High-level output voltage
IOH = –20 mA
IOH = –200 mA
IOL = 20 mA
IOL = 200 mA
CL = 1 nF
CL = 1 nF
V
13.5
Low level output voltage
Low-level output voltage
0.1
V
1.5
Rise time
50
ns
Fall time
50
ns
NOTE 4: Adjust VCC above the start threshold before setting it to 15 V.
undervoltage-lockout section
PARAMETER
TL384xY
TYP
UNIT
MIN
MAX
Start threshold voltage
TL3842Y, TL3844Y
16
V
TL3843Y, TL3845Y
8.4
Minimum operating voltage after startup
TL3842Y, TL3844Y
TL3843Y, TL3845Y
10
7.6
V
NOTE 4: Adjust VCC above the start threshold before setting it to 15 V.
相關(guān)PDF資料
PDF描述
TL284 CURRENT-MODE PWM CONTROLLERS
TL3842Y CURRENT-MODE PWM CONTROLLERS
TL3843Y CURRENT-MODE PWM CONTROLLERS
TL3844Y CURRENT-MODE PWM CONTROLLERS
TL3845Y CURRENT-MODE PWM CONTROLLERS
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