ISL70001ASEHFE datasheet(9/25 Pages) INTERSIL

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ISL70001ASEH

FN8365.0

May 22, 2013

SOFT-START

Soft-Start Source Current

SS = GND

µA

Soft-Start Discharge ON-Resistance

2.2

4.7

Soft-Start Discharge Time

256

Clock Cycles

POWER-GOOD SIGNAL

Rising Threshold

VFB as a % of VREF, Test Mode

107

111

115

Rising Hysteresis

VFB as a % of VREF, Test Mode

3.5

Falling Threshold

VFB as a % of VREF, Test Mode

Falling Hysteresis

VFB as a % of VREF, Test Mode

3.5

Power-Good Drive

VIN = 3V, PGOOD = 0.4V, EN = GND

7.3

8.2

Power-Good Leakage

VIN = PGOOD = 5.5V

0.001

µA

PROTECTION FEATURES

Undervoltage Monitor

Undervoltage Trip Threshold

VIN = 3V, VFB as a % of VREF, Test mode

Undervoltage Recovery Threshold

VIN = 3V, VFB as a % of VREF, Test mode

Overcurrent Monitor

Overcurrent Trip Level

LX4 Power Block, Test Mode, (Note 15)

1.3

1.9

2.5

Overcurrent Trip Counts

LX4 Power Block, Test Mode (Note 14)

Overcurrent or Short-Circuit Duty-Cycle

VIN = 3V, SS interval = 200µs, Test Mode, Fault

interval divided by hiccup interval

0.8

NOTES:

11. Typical values shown are not guaranteed. Guaranteed min/max values are provided in the SMD.

12. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.

13. Limits do not include tolerance of external feedback resistors. The 0A to 6A output current range may be reduced by Minimum LXx On Time and

Minimum LXx Off Time specifications.

14. Limits established by design, characterization or analysis and are not production tested.

15. During an output short-circuit, peak current through the power block(s) can continue to build beyond the overcurrent trip level by up to 3A. With all

six power blocks connected, peak current through the power blocks and output inductor could reach (6 x 2.5A) + 3A = 18A..

Electrical Specifications Unless otherwise noted, VIN = AVDD = DVDD = PVINx = EN = M/S = 3V or 5.5V;

GND = AGND = DGND = PGNDx = TDI = TDO = ZAP = 0V; FB = 0.65V; PORSEL = VIN for 4.5V ≤ VIN ≤ 5.5V and GND for VIN < 4.5V,

SYNC = LXx = Open Circuit; PGOOD is pulled up to VIN with a 1k resistor; REF is bypassed to GND with a 220nF capacitor; SS is bypassed to GND with a

100nF capacitor; IOUT = 0A; TA = TJ = +25°C. (Note 11). Boldface limits apply over the operating temperature range, -55°C to +125°C; over a total iodizing

dose of 100krad(Si) with exposure at a high dose rate of 50 - 300krad(Si)/s; and over a total iodizing dose of 50krad(Si) with exposure at a low dose rate

of <10mrad(Si)/s.

(Continued)

PARAMETER

TEST CONDITIONS

MIN

(Note 12)

TYP

(Note 11)

MAX

(Note 12)

UNITS

ISL70001ASEHFE Datasheet(PDF) 9 Page - Intersil Corporation

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