參數(shù)資料
型號(hào)： 5962-9457501V2A
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.5 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC20
封裝： CERAMIC, LCC-20
文件頁數(shù)： 19/24頁
文件大?。?/td> 871K
代理商： 5962-9457501V2A
UCC1806
UCC2806
UCC3806
SLUS272F -- FEBRUARY 2000 -- REVISED AUGUST 2006
4
www.ti.com
ELECTRICAL CHARACTERISTICS
VIN =12V,RT =33k,CT = 330 pF, CBYPASS on VREF =0.01 μF, --55°C<TA < 125°C for the UCC1806, --40°C<TA <85°Cfor the
UCC2806, 0°C<TA <70°C for the UCC3806, and TA =TJ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OSCILLATOR (continued)
IDCHG
Discharge current
TJ =25°C,
VCT =2.0 V
2.5
mA
VOL
Low-level output voltage, SYNC
IOUT =1mA
0.4
VOH
High-level output voltage, SYNC
IOUT =--4 mA
2.4
V
VIL
Low-level input voltage, SYNC
VCT =0V,
VRT =VREF
0.8
V
VIH
High-level input voltage, SYNC
VCT =0V,
VRT =VREF
2.0
ISYNC
Input current, SYNC
--1
1
μA
ERROR AMPLIFIER
Input offset voltage
UCC1806
UCC2806
5
mV
Input offset voltage
UCC3806
10
mV
IBIAS
Input bias current
--1
μA
IOFSET
Input offset current
500
nA
CMR
Common mode range(1)
0
VIN--2
V
AVOL
Open loop gain
1V ≤ VOUT ≤ 4V
80
100
dB
GBW
bandwidth
1
MHz
ICOMP_SINK Output sink current
VID <--20 mV,
VCOMP =1V
1
mA
ICOMP_SRC
Output source current
VID <20 mV,
VCOMP =3V
--80
--120
μA
VCOMP_L
Low-level output voltage
VID =--50 mV
0.5
V
VCOMP_H
High-level output voltage
VID =--50 mV
4.5
V
CURRENT SENSE AMPLIFIER
A
Amplifier gain(3)(4)
VCS-- =0V,
VCURLIM =VREF
2.75
3.00
3.35
V/V
Maximum differential input signal (VCS+
-- VCS--)
VCURLIM =VNI =VREF,
VINV =0V
1.1
V
Input offset voltage
UCC1806
UCC2806
VCURLIM =0.5 V,
VCOMP = OPEN
10
30
mV
Input offset voltage
UCC3806
VCURLIM =0.5 V,
VCOMP = OPEN
10
50
mV
CMRR
Common mode rejection ratio
0V ≤ VCM ≤ (VIN -- 3.5 V)
60
dB
PSRR
Power supply rejection ratio
56
dB
IBIAS
Input bias current (3)
VCURLIM =0.5 V,
VCOMP = OPEN
--1
μA
Input offset current (3)
VCURLIM =0.5 V,
VCOMP = OPEN
1
μA
Delay-to-output time (5)
VNI =VREF,
VINV =0V,
VCURLIM =2.75V,
(VCS+ -- VCS--)= 0Vto 1.5Vstep
125
175
ns
CURRENT LIMIT ADJUST
Current limit offset
VCS-- =VCS+ =0V, VCOMP = OPEN
0.4
0.5
0.6
V
IBIAS
Input bias current
1
Minimum latching current
300
200
μA
Maximum non-latching current
200
80
μA
(1)
Line range = 10 V to 15 V, load range = 0.2 mA to 5 mA
(2)
Ensured by design. Not production tested.
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