參數(shù)資料
型號(hào)： TPS2231MRGP-1R
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封裝： PLASTIC, QFN-20
文件頁數(shù)： 33/38頁
文件大?。?/td> 1559K
代理商： TPS2231MRGP-1R
www.ti.com
SLVS536I – JULY 2004 – REVISED NOVEMBER 2007
ELECTRICAL CHARACTERISTICS (continued)
TJ = 25°C, VI(3.3VIN) = VI(AUXIN) = 3.3 V, VI(1.5VIN) = 1.5 V, VI(/SHDNx), VI(/STBYx) = 3.3 V, VI(/CPPEx) = VI(/CPUSBx) = 0 V,
VI(/SYSRST) = 3.3 V, OCx and RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
II(AUXIN)
125
200
Normal operation of
II(3.3VIN)
17.5
25
A
TPS2236
Outputs are unloaded,
II(1.5VIN)
5.5
15
Operation input
II
TJ [–40, 120°C] (does not include CPPEx and
quiescent current
II(AUXIN)
85
150
CPUSBx logic pullup currents)
Normal operation of
II(3.3VIN)
10
15
A
TPS2231
II(1.5VIN)
2.5
10
II(AUXIN)
200
320
Normal operation of
II(3.3VIN)
17.5
25
A
TPS2236
II(1.5VIN)
5.5
15
Outputs are unloaded, TJ[–40, 120°C] (include
CPPEx and CPUSBx logic pullup currents)
II(AUXIN)
120
210
Normal operation of
II(3.3VIN)
10
15
A
TPS2231
II(1.5VIN)
2.5
10
Total input
II
quiescent current
II(AUXIN)
250
440
Shutdown mode of
II(3.3VIN)
3.5
20
A
TPS2236
CPUSB = CPPE = 0 V SHDN = 0 V (discharge
II(1.5VIN)
0.1
20
FETs are on) (include CPPEx and CPUSBx logic
pullup currents and SHDN pullup current) TJ [–40,
II(AUXIN)
144
270
120
°C]
Shutdown mode of
II(3.3VIN)
3.5
10
A
TPS2231
II(1.5VIN)
0.5
10
II(AUXIN)
40
100
TPS2236
II(3.3VIN)
0.1
100
A
SHDN = 3.3 V, CPUSB = CPPE = 3.3 V (no card
II(1.5VIN)
0.1
100
Forward leakage
present, discharge FETs are on); current measured
Ilkg(FWD)
current
at input pins, TJ = 120°C, includes RCLKEN pullup
II(AUXIN)
20
50
current
TPS2231
II(3.3VIN)
0.1
50
A
II(1.5VIN)
0.1
50
TJ = 25°C
0.1
10
II(AUXOUT)
A
TJ = 120°C
50
Reverse leakage
VO(AUXOUT) = VO(3.3VOUT)= 3.3 V;
TJ = 25°C
0.1
10
current
Ilkg(RVS)
II(3.3VOUT)
A
VO(1.5VOUT) = 1.5 V; All voltage inputs are grounded
(TPS2236 and
TJ = 120°C
50
(current measured from output pins going in)
TPS2231)
TJ = 25°C
0.1
10
II(1.5VOUT)
A
TJ = 120°C
50
LOGIC SECTION (SYSRST, SHDNx, STBYx, PERSTx, RCLKENx, OCx, CPUSBx, CPPEx)
SYSRST = 3.6 V, sinking
0
1
Logic input
I(SYSRST)
Input
TPS2231-2
0
1
A
supply current
SYSRST = 0 V, sourcing
TPS2231, TPS2231-1
10
30
SHDNx = 3.6 V, sinking
0
1
I(SHDNx)
Input
A
SHDNx = 0 V, sourcing
10
30
STBYx = 3.6 V, sinking
0
1
I(STBYx)
Input
A
STBYx = 0 V, sourcing
10
30
I(RCLKENx)
Input
RCLKENx = 0 V, sourcing
10
30
A
CPUSB or CPPE = 0 V, sinking
0
1
I(CPUSBx) or
Inputs
A
I(CPPEx)
CPUSB or CPPE = 3.6 V, sourcing
10
30
High level
2
Logic input
V
voltage
Low level
0.8
RCLEN output low voltage
Output
IO(RCLKEN) = 60 A
0.4
V
3.3VOUT falling
2.7
3
PERST assertion threshold of output voltage (PERST
AUXOUT falling
2.7
3
V
asserted when any output voltage falls below the threshold)
1.5VOUT falling
1.2
1.35
PERST assertion delay from output voltage
3.3VOUT, AUXOUT, or 1.5VOUT falling
500
ns
4
Copyright 2004–2007, Texas Instruments Incorporated
Product Folder Link(s): TPS2231 TPS2236
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