參數資料
型號: TPS5625CPWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, PDSO28
封裝: PLASTIC, TSSOP-28
文件頁數: 24/25頁
文件大小: 387K
代理商: TPS5625CPWPR
TPS5615, TPS5618, TPS5625, TPS5633
SYNCHRONOUS-BUCK HYSTERETIC REGULATOR CONTROLLER
SLVS177A – SEPTEMBER 1998 – REVISED NOVEMBER 1998
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VCC
11.4
13
V
BOOT to DRVGND
0
28
BOOT to BOOTLO
0
13
Input voltage
INHIBIT, LODRV, PWRGD, OCP
0
6
V
LOHIB, LOSENSE, IOUTLO, HISENSE
0
13
VSENSE
0
4.5
Voltage difference between ANAGND and DRVGND
0
±0.2
V
Output current, VREFB
0
0.4
mA
Not recommended to load VREFB other than to set hysteresis since IVREFB sets slowstart time.
electrical characteristics over recommended operating virtual junction temperature range,
VCC = 12 V, IDRV = 0 A (unless otherwise noted)
reference
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TPS5615
1.485
1.515
VREF
Reference
TPS5618
VCC =11 4Vto12 6 V
1.782
1.818
V
VREF
Reference
voltage
TPS5625
VCC = 11.4 V to 12.6 V
2.475
2.525
V
TPS5633
3.267
3.333
VREFB
Output voltage
IREFB = 50 A
VREF–2%
VREF
VREF+2%
V
VREFB
Output regulation
10
A ≤ IO ≤ 500 A
2
mV
power good
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Undervoltage trip threshold
90
93
95
%VREF
Low-level output voltage, PWRGD
IO = 5 mA
0.5
0.75
V
High-level input current, PWRGD
VPWRGD = 6 V
1
A
Hysteresis
10
mV
overvoltage protection
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Overvoltage trip threshold
112
115
120
%VREF
Hysteresis
See Note 2
10
mV
NOTE 2: Ensured by design, not tested.
slowstart
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Charge current
VSLOWST = 0.5 V,
IVREFB = 65 A
10.4
13
15.6
A
Discharge current
VSOFTST = 1 V
3
mA
Comparator input offset voltage
10
mV
Comparator input bias current
See Note 2
10
100
nA
Hysteresis
–7.5
7.5
mV
NOTE 2: Ensured by design, not tested.
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