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參數(shù)資料
| 型號： | V62/03633-01XE |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | GREEN, PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 549K |
| 代理商： | V62/03633-01XE |
UC2832-EP
PRECISION LOW DROPOUT LINEAR CONTROLLER
SGLS147A – JANUARY 2003 – REVISED MARCH 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, TA = –40_C to 105_C for the UC2832T-EP, +VIN = 15 V, Driver sink = +VIN,
C/S(+) voltage = +VIN, and TA = TJ (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Timer
Inactive leakage current
C/S(+) = C/S(–) = +VIN,
TRC pin = 2 V
0.25
1
A
Active pull-up current
C/S(+) = +VIN,
C/S(–) = +VIN – 0.4 V,
TRC pin = 0 V
–345
–270
–175
A
Duty ratio (See Note 1)
ontime/period,
RT = 200 k,
CT = 0.27 F
4.8
%
Period (See Notes 1 and 2)
ontime + offtime,
RT = 200 k,
CT = 0.27 F
36
ms
Upper trip threshold (Vu)
1.8
V
Lower trip threshold (Vl)
0.9
V
Trip threshold ratio
Vu / Vl
2.0
V/V
Error Amplifier Section
Input offset voltage
VCM = VCOMP = 2 V
–8
8
mV
Input bias current
VCM = VCOMP = 2 V
–4.5
–1.1
A
Input offset current
VCM = VCOMP = 2 V
–1.5
1.5
A
Open loop voltage gain (AVOL)
VCOMP = 1 V to 13 V
50
70
dB
Common mode rejection ratio (CMRR)
VCM = 0 V to +VIN – 3 V
60
80
dB
PSRR
VCM = 2 V, +VIN = 4.5 V to 36 V
90
dB
Transconductance
ICOMP = "10 A
4.3
ms
High-level output voltage (VOH)
ICOMP = 0,
Volts below +VIN
0.95
1.3
V
Low-level output voltage (VOL)
ICOMP = 0
4.5
0.7
V
Output high current (IOH)
VCOMP = 2 V
–700
–500
–100
A
Output low current (I
)
V2 V
C/S(–) = +VIN
100
500
700
A
Output low current (IOL)
VCOMP = 2 V
C/S(–) = +VIN – 0.4 V
2
6
mA
NOTES:
1. These parameters are first-order supply-independent, however, both may vary with supply for +VIN less than about 4 V. This supply
variation will cause a slight change in the timer period and duty cycle, although a high off-time/on-time ratio will be maintained.
2. With recommended RT value of 200 k, TOFF ≈ RT CT * ln(Vu/Vl) "10%.
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