參數(shù)資料
型號: TPS561000PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.4 A SWITCHING CONTROLLER, PDSO28
封裝: PLASTIC, TSSOP-28
文件頁數(shù): 6/27頁
文件大小: 370K
代理商: TPS561000PWP
TPS56100
HIGH-EFFICIENCY DSP POWER SUPPLY CONTROLLER
FOR 5-V INPUT SYSTEMS
SLVS201A – JUNE 1999 – REVISED JULY 1999
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating virtual-junction temperature range,
VCC = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VSENSE to HIGHDR or
LOWDR (excluding dead-
time)
1.3 V
≤ VVREF ≤ 2.6 V, 10 mV overdrive
(see Note 3)
230
300
ns
Propagation delay
OCP comparator
1
Pro agation delay
OVP comparator
See Note 3
1
s
PWRGD comparator
1
SLOWST comparator
Overdrive = 10 mV (see Note 3)
700
1000
ns
Rise and fall time
HIGHDR output
CL = 6 nF,
VBOOT = 4.5 V,
VBOOTLO = 0 V,
TJ = 125°C
120
ns
Rise and fall time
LOWDR output
CL = 6 nF,
VDRV = 4.5 V,
TJ = 125°C
80
ns
Deglitch time (Includes
comparator propagation
OCP
See Note 3
2
5
s
comparator propagation
delay)
OVP
See Note 3
1.8
5
s
Response time
High side VDS sensing
VHISENSE = 4.5 V,
VIOUTLO pulsed from 4.5 V to 4.4 V,
100 ns rise/fall times (see Note 3)
3
s
Response time
High-side VDS sensing
VHISENSE = 3 V,
VIOUTLO pulsed from 3 V to 2.9 V,
100 ns rise/fall times (see Note 3)
3
s
Short-circuit protection
rising-edge delay
SCP
LOSENSE = 0 V (see Note 3)
300
500
ns
Turnon/turnoff delay
VDS sensing sample/hold
switch
3 V
≤ VHISENSE ≤ 5.5 V,
VLOSENSE = VHISENSE (see Note 3)
30
100
ns
Crossover delay time
LOWDR to HIGHDRV, and
LOHIB to LOWDR
See Note 3
50
200
ns
Prefilter pole frequency
Hysteretic comparator
See Note 3
5
MHz
Propagation delay
LODRV
See Note 3
400
ns
NOTE 3: This parameter is ensured by design and is not production tested.
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