參數(shù)資料
型號(hào)： 5962-8768102V2A
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 2.2 A SWITCHING CONTROLLER, 1180 kHz SWITCHING FREQ-MAX, CQCC20
封裝： CERAMIC, LCC-20
文件頁(yè)數(shù)： 11/15頁(yè)
文件大?。?/td> 503K
代理商： 5962-8768102V2A
ELECTRICAL CHARACTERISTICS (Continued)
www.ti.com ..................................................................................................................................................... SLUS873A – JANUARY 2009 – REVISED APRIL 2009
TA = –55°C to 125°C, RT = 3.65 k, CT = 1 nF, VCC = 12 V, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITIIONS
MIN
TYP MAX
UNIT
PWM COMPARATOR
IBIAS
Bias current, RAMP
VRAMP = 0 V
–1
–8
A
Minimum duty cycle
0%
Maximum duty cycle
85%
tLEB
Leading edge blanking time
RLEB = 2 k, CLEB = 470 pF
300
375
450
ns
RLEB
Leading edge blanking resistance
VCLK/LEB = 3 V
8.5
10.0
11.5
k
VZDC
Zero dc threshold voltage, EAOUT VRAMP = 0 V
1.10
1.25
1.4
V
tDELAY Delay-to-output time
(1)
VEAOUT = 5 V to 0 V step
50
120
ns
CURRENT LIMIT / START SEQUENCE / FAULT
ISS
Soft-start charge current
VSS= 2.5 V
8
14
20
A
VSS
Full soft-start threshold voltage
4.3
5
V
IDSCH
Restart discharge current
VSS= 2.5 V
100
250
350
A
ISS
Restart threshold voltage
0.3
0.5
V
IBIAS
ILIM bias current
0 V
≤ VILIM ≤ 1.5 V
15
A
ICL
Current limit threshold voltage
0.95
1
1.05
V
Overcurrent threshold voltage
1.14
1.2
1.26
td
Delay-to-output time, ILIM(1)
VILIM = 0 V to 2 V step
50
80
ns
OUTPUT
IOUT = 20 mA
0.25
0.45
Low-level output saturation
voltage
IOUT = 200 mA
1.2
2.2
V
IOUT = -20 mA
1.9
2.9
High-level output saturation
voltage
IOUT = -200 mA
2
3
tr, tf
Rise/fall time(1)
CL = 1 nF
20
45
ns
UNDERVOLTAGE LOCKOUT (UVLO)
Start threshold voltage
8.3
9.2
9.6
V
UVLO hysteresis
0.4
0.8
1.25
SUPPLY CURRENT
Isu
Startup current
VC = VCC = 8 V
100
300
A
ICC
Input current
28
36
mA
(1)
Parameters ensured by design and/or characterization, if not production tested.
Copyright 2009, Texas Instruments Incorporated
5
Product Folder Link(s): UC1825A-SP
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