參數(shù)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(shù)： 3/25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
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating virtual junction temperature range,
VCC = 12 V, IDRV = 0 A (unless otherwise noted) (continued)
bias regulator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output voltage
11.4 V
≤ VCC ≤ 12.6 V, See Note 3
6
V
NOTE 3: The bias regulator is designed to provide a quiet bias supply for the TPS56xx controller. External loads should not be driven by the bias
regulator.
output drivers
PARAMETER (see Note 4)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High-side sink
Duty cycle < 2%, tpw < 100 s, TJ = 125°C,
VBOOT VBOOTLO 65 V
2
Peak output current
High-side source
VBOOT – VBOOTLO = 6.5 V,
VHIGHDR = 1.5 V (SRC) or 5 V (sink), See Note 2
2
A
Peak output current
Low-side sink
Duty cycle < 2%, tpw < 100 s, TJ = 125°C,
VDRV 65 V VLOWDR 1 5 V (SRC) or 5 V
2
A
Low-side source
VDRV = 6.5 V, VLOWDR = 1.5 V (SRC) or 5 V
(sink), See Note 2
2
High-side sink
TJ = 125°C, VBOOT – VBOOTLO = 6.5 V,
3
Output resistance
High-side source
J
,
BOOT
BOOTLO
,
VHIGHDR = 1.5 V (SRC) or 5 V (sink)
45
Output resistance
Low-side sink
TJ = 125°C, VDRV = 6.5 V,
5.7
Low-side source
J
DRV
VLOWDR = 1.5 V (SRC) or 5 V (sink)
45
NOTES:
2. Ensured by design, not tested.
4. The pull up/down circuits of the drivers are bipolar and MOSFET transistors in parallel. The peak output current rating is the
combined current from the bipolar and MOSFET transistors. The output resistance is the RDS(ON) of the MOSFET transistor when
the voltage on the driver output is less than the saturation voltage of the bipolar transistor.
supply current
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC supply voltage range
11.4
12
13
V
VINHIBIT = 5 V,
VBOOTLO = 0 V,
VCC > 10.75 V at startup,
See Note 2
3
10
VCC quiescent current
VINHIBIT = 5 V,
VBOOTLO = 0 V,
CLOWDR = 50 pF,
VCC > 10.75 V at startup,
CHIGHDR = 50 pF,
fswx = 200 kHz
5
mA
VINHIBIT = 0 V or VCC < 9.25 V at startup,
VBOOT = 13 V,
VBOOTLO = 0 V
10
A
High-side drive regulator quiescent current
VINHIBIT = 5 V,
VBOOT = 13 V,
CHIGHDR = 50 pF,
VCC > 10.75 V at startup,
VBOOTLO = 0 V,
fswx = 200 kHz
2
mA
NOTE 2: Ensured by design, not tested.
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