參數(shù)資料
型號(hào): TPS5602DBT
廠商: Texas Instruments, Inc.
英文描述: DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER
中文描述: 雙通道,快速,高效控制器的DSP電源
文件頁(yè)數(shù): 7/24頁(yè)
文件大?。?/td> 739K
代理商: TPS5602DBT
TPS5602
DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER
SLVS217 – JUNE 1999
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended free-air temperature range, V
CC
= 7 V (unless
otherwise noted) (continued)
5-V internal switch
PARAMETER
TEST CONDITIONS
MIN
4.2
TYP
MAX
4.9
UNIT
VTLH
VTHL
Rson
Threshold voltage
V
4.1
4.7
On-time resistance
2.5
8
mV
Vhys
Hysteresis
50
250
current limit
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
μ
A
Internal current source
10
15
20
Input offset voltage
2.5
mV
UVLO
PARAMETER
TEST CONDITIONS
MIN
3.6
TYP
MAX
4.2
UNIT
V(TLH)
V(THL)
Threshold voltage
V
3.5
4.1
Hysteresis
50
250
mV
driver output
PARAMETER
OUT_u sink current
TEST CONDITIONS
MIN
0.5
TYP
1.2
MAX
UNIT
VO = 3 V
VO = 2 V
VO = 3 V
VO = 2 V
High side driver is GND referenced,
Input: INV = 0 V – 3 V
In ut: INV = 0 V – 3 V,
tr/tf = 10 ns,
A
OUT_u source current
–1
–1.7
OUT_d sink current
0.5
1.2
A
OUT_d source current
–1
–1.7
Rise time
CL = 2200 pF
25.6
ns
Frequency = 200 kHz,
CL = 3300 pF
30.8
Fall time
High side driver is GND referenced,
Input: INV = 0 V – 3 V
In ut: INV = 0 V – 3 V,
tr/tf = 10 ns,
CL = 2200 pF
23.2
ns
Frequency = 200 kHz,
CL = 3300 pF
25.2
Softstart
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
μ
A
I(CTRL)
Softstart current
1.8
2.5
3
Maximum discharge current
0.92
mA
COMP
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Threshold voltage
1
1.1
1.25
V
Turn on
Propagation delay 50% duty y
No capacitor on COMP or OUT_u pin,
Frequency = 200 kHz
452
ns
Turn off
The delay time in the table includes the drivers.
,
384
oscillator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Frequency without Ct
202.4
kHz
Frequency with Ct
Ct = 100 pF
67.5
kHz
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