TPS5615, TPS5618, TPS5625, TPS5633

SYNCHRONOUS-BUCK HYSTERETIC REGULATOR CONTROLLER

SLVS177A – SEPTEMBER 1998 – REVISED NOVEMBER 1998

10

POST OFFICE BOX 655303

electrical characteristics over recommended operating virtual junction temperature range,

high-side VDS sensing

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Gain

2

V/V

Initial accuracy

VHISENSE = 12 V,

VLOSENSE = 11.9 V

194

206

mV

Initial accuracy

Differential input to Vds sensing amp = 100 mV

194

206

mV

IOUTLO sink current

5 V

≤ VIOUTLO ≤ 13 V

250

nA

IOUT source current

VIOUT = 0.5 V,

VIOUTLO = 11.5 V

VHISENSE = 12 V,

500

µA

IOUT sink current

VIOUT = 0.05 V,

VIOUTLO = 12 V

VHISENSE = 12 V,

50

µA

VHISENSE = 11 V

0

2

Output voltage swing

VHISENSE = 4.5 V

RIOUT = 10 kΩ

0

1.5

V

VHISENSE = 3 V

0

0.75

LOSENSE high-level input voltage

VHISENSE = 4.5 V,

See Note 2

2.85

V

LOSENSE low-level input voltage

VHISENSE = 4.5 V,

See Note 2

2.4

V

11.4 V

≤ VHISENSE ≤ 12.6 V,

LOSENSE connected to HISENSE,

VHISENSE – VIOUTLO = 0.15 V

50

60

80

Sample/hold resistance

4.5 V

≤ VHISENSE ≤ 5.5 V,

LOSENSE connected to HISENSE,

VHISENSE – VIOUTLO = 0.15 V

62

85

123

Ω

3 V

≤ VHISENSE ≤ 3.6 V,

LOSENSE connected to HISENSE,

VHISENSE – VIOUTLO = 0.15 V

67

95

144

CMRR

VHISENSE = 12.6 V to 3 V,

VHISENSE – VOUTLO = 100 mV

69

75

dB

NOTE 2: Ensured by design, not tested.

deadtime

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

LOHIB

High level input voltage

See Note 2

2.4

V

LODR

High-level input voltage

See Note 2

3

V

LOHIB

Low level input voltage

See Note 2

1.4

V

LODR

Low-level input voltage

See Note 2

1.7

V

NOTE 2: Ensured by design, not tested.

LODRV

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

LODRV

High-level input voltage

1.85

V

LODRV

Low-level input voltage

0.95

V

drive regulator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output voltage

11.4 V

≤ VCC ≤ 12.6 V, IDRV = 50 mA

7

9

V

Output regulation

1 mA

≤ IDRV ≤ 500 mA

100

mV

Short-circuit current

100

mA