参数资料
型号: TPS56100PWPR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
封装: GREEN, PLASTIC, HTSSOP-28
文件页数: 6/30页
文件大小: 595K
代理商: TPS56100PWPR
TPS56100
HIGHEFFICIENCY DSP POWER SUPPLY CONTROLLER
FOR 5V 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
Propagation delay
OVP comparator
See Note 3
1
s
PWRGD comparator
See Note 3
1
s
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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