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| 型號： | TPS5300DAP |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 231K |
| 代理商： | TPS5300DAP |
TPS5300
IMVP MOBILE POWER SUPPLY CONTROLLER
SLVS334 – DECEMBER 2000
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, 0 < T
J
< 125
°
C,
V
IN
= 4.3 V – 28 V (unless otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Bias UVLO (Resets fault latch)
VIT(startUVLO)
VIT(stopUVLO)
Start threshold
4.46
V
Stop threshold
3.3
V
VBIAS quiescent current, I(ving1)
VR_ON connected to GND and VI above
UVLO start threshold
10
15
μ
A
VR_ON UVLO (Resets fault latch)
VIT(startVRON)
VIT(stopVRON)
Slowstart
Start threshold
2.1
2.5
V
Stop threshold
1.3
V
I(chg)
Charge current (I(chg) = (I(REFB)/5)
V(SS) = 0.5 V, I(VREFB) = 65
μ
A VREFB
= 1.3 V; I(chg) = (I(VREFB)/5)
V(SS) = 1.3 V,
Design for VIN(min) = 4.5 V
10.4
13
15.6
μ
A
I(dischg)
Discharge current
3
mA
VGATE (CORE, IO, CLK) (PWRGD of three outputs with open drain output)
V(VGATE)
Undervoltage trip point
(VSENSE_CORE, _IO, & _CLK)
VIN and V(drv) above UVLO thresholds
87.5
90
92.5
%Vref
V(olVGATE)
Enable EXT (SHUTDOWNB of IC with open-drain output. Use pullup resistor to 5 V or 3.3 V)
Output saturation voltage
IO = 2.5 mA
0.5
0.75
V
V(olEN_EXT)
DROOP Compensation
Output saturation voltage
IO = 2.5 mA
0.5
0.75
V
V(DROOP_ACC)
Initial accuracy
V(DROOP) = 50 mV
15-mV to 150-mV swing,
1.3 V
≤
Vref
≤
3.3 V, VCC = 5 V
(see Note 2)
–4
8
mV
tPHL(HC)
Propagation delay
200
500
ns
Current Sensing
G(CS)
Gain
With chopper stabilization (backup dis-
able with metal mask)
24
25
26
V/V
VIO
Input offset
VIS– = 1.3 V, VIS+ – VIS– = 10 mV
VIS– = 0.925 V – 2 V, VIS+ is pulsed from
VIS– to (VIS– + 50 mV),
VCC = 5 V (see Note 2)
–3
3
mV
t(VDSRESP)
Response time (measured from 50% of
(VIS+ – VIS– ) to 50% of V(IOUT))
500
ns
NOTES:
2. Ensured by design, not production tested.
3. The VBIAS voltage is required to be a quiet bias supply for the TPS5300 control logic. External noisy loads should use VCC instead
of the VBIAS voltage.
P
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