參數(shù)資料
型號(hào): TPS2370PW
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: GREEN, PLASTIC, TSSOP-8
文件頁(yè)數(shù): 14/17頁(yè)
文件大?。?/td> 426K
代理商: TPS2370PW
TPS2370
SLUS537C AUGUST 2002 REVISED MARCH 2004
www.ti.com
6
STATE DIAGRAM
YES
NO
YES
NO
Power
Down
DETECTION
VDD < 10 V
IDD = VDD/(RDET) || 1 M
Switch Resistance > 100 M
CLASSIFICATION
10 V < VDD < 22 V
IDD 10 V/(RCLASS)
Switch Resistance > 100 M
INRUSH MODE
VDD > 40 V (rising edge)
VRTN > 1.5 V
IRET = IINRUSH = 450 mA (25 k/RLIM) x (1 A)
Switch Resistance
≈ 100
NORMAL OPERATION
VDD > 30 V
(IRET = ILOAD) < 450 mA
Switch Resistance
≈ 0.3
OVERLOAD/FAULT
VDD > 30 V
IRET = 450 mA
Switch Resistance
≈ 100
TJ < 145 _C?
THERMAL SHUTDOWN
VDD > 30 V
IDD < 1 mA
Switch Resistance > 100 M
TSD
Count < 7?
LATCH OFF
VDD > 30 V
IDD < 1 mA
Switch Resistance
> 100 M
MACHINE STATE
0
50
Classification
(Falling Edge)
44
57
UVLO ON
(Rising Edge)
2
4
6
8
10
15
20
31
25
40
UVLO OFF
Detection
(RLOAD =25k)
Normal Operation
(IDD = 450 mA)
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