TPS5211

HIGH FREQUENCY PROGRAMMABLE HYSTERETIC

REGULATOR CONTROLLER

SLVS243 – SEPTEMBER 1999

8

POST OFFICE BOX 655303

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VCC

11.4

13

V

Input voltage, BOOT to DRVGND

0

28

V

Input voltage, BOOT to BOOTLO

0

13

V

Input voltage, INHIBIT, VIDx, LODRV, PWRGD, OCP, DROOP

0

6

V

Input voltage, LOHIB, LOSENSE, IOUTLO, HISENSE

0

13

V

Input voltage, VSENSE

0

4.5

V

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 hystersis since IVREFB sets slowstart time.

electrical characteristics over recommended operating virtual junction temperature range,

reference/voltage identification

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VREF

Cumulative reference accuracy

(see Note 2)

VCC = 11.4 to 12.6 V, 1.3 V ≤ VREF ≤ 3.5 V

–0.015

0.015

V/V

VIDx

High-level input voltage

2.25

V

VIDx

Low-level input voltage

1

V

V

Output voltage

IVREFB = 50 µA

VREF–5mV

VREF VREF+5mV

V

VREFB

Output regulation

10

µA ≤ IO ≤ 500 µA

2

mV

VIDx

Input resistance

VIDx = 0 V

36

73

95

k

Ω

VIDx

Input pull-up voltage divider

4.8

4.9

5

V

NOTES:

2. Cumulative reference accuracy is the combined accuracy of the reference voltage and the input offset voltage of the hysteretic

comparator. Cumulative accuracy equals the average of the high-level and low-level thresholds of the hysteretic comparator.

3. This parameter is ensured by design and is not production tested.

power good

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Undervoltage trip threshold

90

93

95

%VREF

VOL

Low-level output voltage

IO = 5 mA

0.5

0.75

V

IOH

High-level input current

VPWRGD = 6 V

1

µA

Vhys

Hysteresis voltage

1.3

2.9

4.5

%VREF

slowstart

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Charge current

VSLOWST = 0.5 V,

IVREFB = 65 µA

VVREFB = 1.3 V,

10.4

13

15.6

µA

Discharge current

VSLOWST = 1 V

3

mA

Comparator input offset voltage

10

mV

Comparator input bias current

See Note 3

10

100

nA

Comparator hysteresis

–7.5

7.5

mV

NOTE 3: This parameter is ensured by design and is not production tested.