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参数资料
| 型号： | TPS59124RGET |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PQCC24 |
| 封装： | GREEN, PLASTIC, VQFN-24 |
| 文件页数： | 20/25页 |
| 文件大小： | 846K |
| 代理商： | TPS59124RGET |
TPS59124
SLUSA58 – JULY 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (Continued)
over operating free-air temperature range, V5IN = V5FILT = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
UVLO/LOGIC THRESHOLD
Wake up
3.7
4.0
4.3
V
VUV5VFILT
V5FILT UVLO threshold
Hysteresis
0.2
0.3
0.4
V
Wake up
1.0
1.3
1.5
V
VEN
ENx threshold
Hysteresis
0.2
V
IEN
ENx input current
Absolute value(1)
0.02
0.1
mA
Fast(1)
V5FILT
V
–0.3
VTONSEL
TONSEL threshold
Medium(1)
V5FILT
2
V
–1.0
Slow(1)
0.5
V
VTONSEL=0 V, current out of the pin
(1)
1
mA
ITONSEL
TONSEL input current
VTONSEL=5 V, current in to the pin
(1)
1
mA
CURRENT SENSE
ITRIP
TRIP source current
VTRIPx < 0.3 V, TA = 25°C
9
10
11
mA
TCITRIP
ITRIP temperature coeffficent
On the basis of 25°C(1)
4200
ppm/°C
(VTRIPx-GND – VPGNDx-LLx) voltage,
VOCLoff
OCP compensation offset
–10
0
10
mV
VTRIPx-GND = 60 mV
Zero cross detection comparator
VPGNDx-LLx voltage, PGOODx = Hi(1)
VZC
0.5
mV
offset
Current limit threshold setting
VTRIPx-GND voltage, all temperatures
(1)
VRTRIP
30
200
mV
range
POWER-GOOD COMPARATOR
PG in from lower (PGOODx goes hi)
92.5%
95%
97.5%
PG low hysteresis (PGOODx goes low)
–5%
VTHPG
PG threshold
PG in from higher (PGOODx goes hi)
102.5%
105%
107.5%
PG high hysteresis (PGOODx goes low)
5%
IPGMAX
PG sink current
PGOODx = 0.5 V
2.5
5.0
mA
tPGDEL
PG delay
Delay for PG in
400
510
620
ms
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
VOVP
Output OVP trip threshold
OVP detect
110%
115%
120%
Output OVP propagation delay
tOVPDEL
1.5
ms
time
UVP detect
65%
70%
75%
VUVP
Output UVP trip threshold
Hysteresis (recovery < 20 ms)
10%
tUVPDEL
Output UVP delay time
20
32
40
ms
tUVPEN
Output UVP enable delay time
After 1.7 × Tss, UVP protection engaged
1.4
2
2.4
ms
THERMAL SHUTDOWN
Shutdown temperature(1)
160
TSDN
Thermal shutdown threshold
°C
Hysteresis(1)
10
(1)
Ensured by design. Not production tested.
4
Copyright 2010, Texas Instruments Incorporated
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