33730 datasheet(7/27 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33730

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 4. Static Electrical Characteristic

Characteristics noted under conditions 6.0V

≤ KA_VBAT = VBAT ≤ 26.5V, -40°C ≤ TA ≤ 125°C using the typical application circuit,

unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

GENERAL

Keep-Alive Start-Up Voltage (at the KA_VBAT pin), VKAM Output Up

VKAM_STUP

4.5

—

Start-Up Voltage (at the KA_VBAT pin), VDD3, VDD3 standby, VDDL Up

VSTUP

4.5

—

Over-voltage Shutdown

Voltage at KA_VBAT pin rising

VSHDN_r

—

Under-voltage Lock-out

Voltage at KA_VBAT pin falling

VUVLO_f

3.6

—

4.3

Voltage at KA_VBAT pin rising

VUVLO_r

3.7

—

4.4

Under-voltage Lock-out Hysteresis(6)

VUVLO_hys

—

0.1

—

Sleep Quiescent Current (Sleep mode)

VIGN = 0V, REGON = 0V, IVKAM = 0mA, VDD3 OFF, VBAT = 14.0V,

—

500

µA

KA_VBAT = 14V (P1=1, P2=1, P3=1)

SWITCHING REGULATOR (VDDH)

Buck Converter Output Voltage

VBAT = 6.0V to 26.5V, ILOAD = 100mA

VDDH

4.9

5.0

5.1

VBAT = 26.5V to 35V, ILOAD = 100mA

4.85

5.0

5.15

Switching Regulator Current Limit (see Figure 5)

Pulse-by-Pulse Current Limit

ILIM_SW

-2.25

-3.5

-4.25

Extreme Current Limit (see Figure 5)(6)

ILIM_SW_Ext

-3.75

-4.5

-6.00

SW Drain Source On Resistance(6)

RDS(ON)

—

200

ID = 500mA, VBAT = 5.0V

Thermal Shutdown Junction Temperature(6)

TSH

—

195

°C

TSL

155

—

°C

Thermal Shutdown Hysteresis(6)

TSHYS

1.0

—

°C

VDD3 LINEAR REGULATOR

VDD3 Output Voltage (Includes Line and Load Regulation)

VDD3

-3.0

—

3.0

IVDD3 = 0mA to -500mA, See Table 1 for VDD3 Output Settings

VDD3 Dropout Voltage (VDDH - VDD3)

VDD3_DO

—

1.1

1.5

IVDD3 = -800mA (VDD3 set to 3.3V via P1, P2, P3 and with external

transistor)

Notes

Guaranteed By Design.

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