参数资料
型号: TPS2231PWPR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封装: GREEN, PLASTIC, HTSSOP-24
文件页数: 36/40页
文件大小: 1410K
代理商: TPS2231PWPR
www.ti.com.................................................................................................................................................. SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009
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
3.3VOUT, AUXOUT, and 1.5VOUT rising within
PERST de-assertion delay from output voltage
4
10
20
ms
tolerance
PERST assertion delay from SYSRST
Max time from SYSRST asserted or de-asserted
500
ns
3.3VOUT, AUXOUT, or 1.5VOUT falling out of
tW(PERST)
PERST minimum pulse width
100
250
μs
tolerance or triggered by SYSRST
PERST output low voltage
0.4
V
IO(PERST) = 500 μA
PERST output high voltage
2.4
V
OC output low voltage
IO(/OC) = 2 mA
0.4
V
OC leakage current
VO(/OC) = 3.6 V
1
μA
OC deglitch
Falling into or out of an overcurrent condition
6
20
mS
UNDERVOLTAGE LOCKOUT (UVLO)
3.3VIN level, below which 3.3VIN and 1.5VIN
switches are off
3.3VIN UVLO
2.6
2.9
3.3VIN level, below which 3.3VIN switch is off
(TPS2231-3 only)
1.5VIN level, below which 3.3VIN and 1.5VIN
V
switches are off
1.5VIN UVLO
1
1.25
1.5VIN level, below which 1.5VIN switch is off
(TPS2231-3 only)
AUXIN UVLO
AUXIN level, below which all switches are off
2.6
2.9
UVLO hysteresis
100
mV
Copyright 2004–2009, Texas Instruments Incorporated
5
Product Folder Link(s): TPS2231 TPS2236
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