參數(shù)資料
型號(hào): LTC4230CGN#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 3/36頁(yè)
文件大?。?/td> 384K
描述: IC CONTRLLR HOT SWAP TRPL 20SSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開(kāi)關(guān): 無(wú)
電源電壓: 1.7 V ~ 16.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 帶卷 (TR)
3
LTC4230
 4230f
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
 = 25?/SPAN>C. V
CC1
 = 3.3V, V
CC2
 = 2.5V,V
CC3
 = 1.8V unless otherwise noted. (Note 2)
ELECTRICAL CHARACTERISTICS
V
GATEn
External N-Channel Gate Drive
V
GATE1, 2
  V
CC1, 2
 (for V
CC1, 2
 = 2.7V, V
CC3
 = V
CC1
  1V)   q
4.5
8
V
V
GATE3
  V
CC3
 (for V
CC1, 2
 = 2.7V, V
CC3
 = V
CC1
  1V)
q
5.5
9
V
V
GATE1, 2
  V
CC1, 2
 (for V
CC1, 2
 = 3.3V, V
CC3
 = V
CC1
  1V)   q
5
10
V
V
GATE3
  V
CC3
 (for V
CC1, 2
 = 3.3V, V
CC3
 = V
CC1
  1V)
q
6
11
V
V
GATEn
  V
CCn
 (for V
CC1, 2
 = 5V, V
CC3
 = V
CC1
  1V)
q
9
16
V
V
GATEn
  V
CCn
 (for V
CC1, 2
 = 12V or 15V,
q
7
18
V
V
CC3
 = V
CC1
  1V)
V
GATEn, 0V
GATEn Overvoltage Lockout
0.25
V
Threshold
V
FBn
FBn Low Threshold Voltage
FBn High to Low Transition
q    1.209
1.234
1.259
V
V
FBn
FBn Line Regulation
2.7V d V
CC1
 d 16.5V
0.5
mV
V
FBn, HST
FBn Hysteresis
3
mV
V
ONHI
ON High Threshold Voltage
ON Low to High Transition
q    1.250
1.314
1.380
V
V
ONLO
ON Low Threshold Voltage
ON High to Low Transition
q    1.172
1.234
1.270
V
V
ONHST
ON Hysteresis
80
mV
I
FILTER
FILTER Pull-Up Current
During Slow Fault Condition
q    2.5
2
1.3
礎(chǔ)
FILTER Pull-Down Current
During Normal and Reset Conditions
q
7
10
13
礎(chǔ)
V
FILTER
FILTER Threshold
Latched Off Threshold, FILTER Low to High
q    1.10
1.26
1.42
V
V
FILTERHST
FILTER Threshold Hysteresis
70
mV
I
TMR
TIMER Pull-Up Current
TIMER On
q
23
20
17
礎(chǔ)
TIMER Pull-Down Current
TIMER Off, V
FAULT
 = Low
q
0.9
1.6
2.3
礎(chǔ)
V
TIMER
 = 1.5V
2.5
mA
V
TMR
TIMER Threshold
TIMER Low to High
q    1.172
1.234
1.27
V
TIMER High to Low
q
0.3
0.5
V
V
FAULT
FAULT Low Threshold Voltage
FAULT High to Low
q    1.172
1.234
1.27
V
V
FAULT, HST
FAULT Hysteresis
FAULT Low to High
50
mV
I
FAULT, UP
FAULT Pull-Up Current
q    2.5
2
1.5
礎(chǔ)
V
OLFAULT
Output Low Voltage
I
FAULT
 = 1.6mA, V
CC1
 = 5V
q
0.19
0.4
V
V
OLRESETn
Output Low Voltage
I
RESETn
 = 1.6mA, V
CC1
 = 5V
q
0.19
0.4
V
t
GATEFC
Fast COMPn Trip to
V
CB
 = 0mV to 200mV Step
q
0.5
1
GATEn Discharging
t
FAULTSC
Slow Comparator Trip to
V
CB
 = 0mV to 100mV Step, FILTER Floating
10
FILTER High and FAULT Latched
10nF at FILTER Pin to GND
q
7
12
ms
t
OVPFTR
FILTER Comparator Trip to
V
FILTER
 = 0V to 5V
q
8
12
GATEn Discharging
t
EXTFAULT
FAULT Low to GATE Discharging
V
FAULT
 = 5V to 0V
q
1.5
3
4.5
t
RESET
Circuit Breaker Reset Time
ON Held Low to Guarantee FAULT High
q
15
30
t
OFF
Turn-Off Time
ON Goes Low to GATEn Off
8
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All current into device pins is positive; all current out of device
pins is negative; all voltages are referenced to ground unless otherwise
specified.
Note 3: An internal zener at the GATEn pin clamps the charge pump
voltage to a typical maximum operating voltage of 26V. External overdrive
of the GATEn pin beyond the internal zener voltage may damage the part.
The GATEn capacitance must be <0.15礔 at maximum V
CC
. If a lower
GATEn pin voltage is desired, use an external zener diode.
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