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| 型號： | TPS5211 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH FREQUENCY PROGRAMMABLE HYSTERETIC REGULATOR CONTROLLER |
| 中文描述： | 可編程滯高頻穩(wěn)壓控制器 |
| 文件頁數(shù)： | 9/32頁 |
| 文件大?。?/td> | 469K |
| 代理商： | TPS5211 |
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TPS5211
HIGH FREQUENCY PROGRAMMABLE HYSTERETIC
REGULATOR CONTROLLER
SLVS243 – SEPTEMBER 1999
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating virtual junction temperature range,
V
CC
= 12 V, I
DRV
= 0 A (unless otherwise noted) (continued)
hysteretic comparator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input offset voltage
VDROOP = 0 V (see Note 3)
See Note 3
–2.5
2.5
mV
Input bias current
500
nA
Hysteresis accuracy
VREFB – VHYST = 15 mV
(Hysteresis window = 30 mV)
–3.5
3.5
mV
Maximum hysteresis setting
VREFB – VHYST = 30 mV
60
mV
NOTE 3: This parameter is ensured by design and is not production tested.
high-side VDS sensing
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Gain
2
V/V
Initial accuracy
VHISENSE = 12 V,
Differential input to Vds sensing amp = 100 mV
5 V
≤
VIOUTLO
≤
13 V
VIOUT = 0.5 V,
VIOUTLO = 11.5 V
VIOUT = 0.05 V, VHISENSE = 12 V,
VIOUTLO = 12 V
VHISENSE = 11 V, RIOUT = 10 k
VHISENSE = 4.5 V, RIOUT = 10 k
VHISENSE = 3 V, RIOUT = 10 k
VLOSENSE = 11.9 V,
194
206
mV
IOUTLO
Sink current
250
nA
IOUT
Source current
VHISENSE = 12 V,
500
μ
A
IOUT
Sink current
50
μ
A
0
2
V
Output voltage swing
0
1.5
V
0
0.75
V
LOSENSE
High-level input voltage
VHISENSE= 4 5 V (see Note 3)
VHISENSE = 4.5 V (see Note 3)
2.85
V
Low-level input voltage
2.4
V
11.4 V
≤
VHISENSE
≤
12.6 V,
LOSENSE connected to HISENSE,
VHISENSE – VIOUTLO = 0.15 V
4.5 V
≤
VHISENSE
≤
5.5 V,
LOSENSE connected to HISENSE,
VHISENSE – VIOUTLO = 0.15 V
3 V
≤
VHISENSE
≤
3.6 V,
LOSENSE connected to HISENSE,
VHISENSE – VIOUTLO = 0.15 V
VHISENSE = 12.6 V to 3 V,
VHISENSE – VOUTLO = 100 mV
50
60
80
Sample/hold resistance
62
85
123
67
95
144
CMRR
69
75
dB
NOTE 3. This parameter is ensured by design and is not production tested.
inhibit
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Start threshold
1.9
2.1
2.35
V
Hysteresis
0.08
0.1
0.12
V
Stop threshold
1.85
V
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