參數(shù)資料
型號(hào)： UCC18500
廠商： Texas Instruments, Inc.
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： BiCMOS PFC/PWM Combination Controller
中文描述： 的BiCMOS PFC / PWM組合控制器
文件頁(yè)數(shù)： 4/8頁(yè)
文件大?。?/td> 91K
代理商： UCC18500
4
UCC18500/1/2/3
UCC28500/1/2/3
ELECTRICAL CHARACTERISTICS:
Unless otherwise specified, these specifications hold for T
A
=0°C to 70°C for the
UCC3850X, –40°C to +85°C for the UCC2850X, and –55°C to +125°C for the UCC1850X, T
A
= T
J
. VCC = 12V, RT = 22k, CT =
330pF.
PARAMETER
TEST CONDITIONS
Peak Current Limit Section
PKLMT Reference Voltage
PKLMT Propogation Delay
Multiplier Section
High Line, Low Power
I
AC
= 500 A, VFF = 4.7V, VAOUT = 1.25V
High Line, High Power
I
AC
= 500 A, VFF = 4.7V, VAOUT = 5V
Low Line, Low Power
I
AC
= 150 A, VFF = 1.4V, VAOUT = 1.25V
Low Line, High Power
I
AC
= 150 A, VFF = 1.4V, VAOUT = 5V
IAC Limited
I
AC
= 150 A, VFF = 1.3V, VAOUT = 5V
Gain Constant (K)
I
AC
= 300 A, VFF = 2.8V, VAOUT = 2.5V
Zero Current
I
AC
= 150 A, VFF = 1.4V, VAOUT = 0.25V
I
AC
= 500 A, VFF = 4.7V, VAOUT = 0.25V
I
AC
= 500 A, VFF = 4.7V, VAOUT = 0.5V
Power Limit
I
AC
= 150 A, VFF = 1.4V, VAOUT = 5V
Zero Power Section
Zero Power Comparator Threshold
Measured on VAOUT
PFC Gate Driver Section
GT1 Pull Up Resistance
I
OUT
= –100mA
GT1 Pull Down Resistance
I
OUT
= 100mA
GT1 Output Rise Time
C
LOAD
= 1nF, R
LOAD
= 10
GT1 Output Fall Time
C
LOAD
= 1nF, R
LOAD
= 10
Maximum Duty Cycle
Second Stage UVLO (UVLO2)
PWM Turn-on Reference (UCCX8500/501)
Hysteresis (UCCX8500/501)
PWM Turn-on Reference (UCCX8502/503)
Hysteresis (UCCX8502/503)
Second Stage Soft Start Section
SS2 Charge Current
VERR
I
VERR
= 2mA, UVLO = Low
SS2 Discharge Current
ENA = High, UVLO = Low, SS2 = 2.5V
Second Stage Duty Cycle Clamp Section
Maximum Duty Cycle
Second Stage Pulse by Pulse Current Sense Section
Current Sense Comparator Threshold
VERR = 2.5V, Measured on ISENSE2
Second Stage Over Current Limit Section
Peak Current Comparator Threshold
Input Bias Current
Second Stage Gate Driver Section
GT2 Pull Up Resistance
I
OUT
= –200mA
GT2 Pull Down Resistance
I
OUT
= 100mA
GT2 Output Rise Time
C
LOAD
= 1nF, R
LOAD
= 10
GT2 Output Fall Time
C
LOAD
= 1nF, R
LOAD
= 10
MIN
TYP
MAX
UNITS
–15
0
15
mV
ns
300
–6
–90
–19
–300
–300
1
0
0
A
A
A
A
A
1/V
A
A
μ
A
W
–2
–2
–3
–420
0.10
0.25
0.40
V
7
3
25
10
94
ns
ns
%
6.30
6.75
1.2
6.75
3
7.30
V
V
V
V
6.30
7.30
–7.5
–10
–12.5
300
10
μ
A
mV
mA
3
44
50
%
.95
1.05
1.15
V
1.15
1.30
50
1.45
V
nA
7
3
25
25
ns
ns
Note 1: Guaranteed by design, not 100% tested in production.
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