ISL6446 Просмотр технического описания (PDF) - Renesas Electronics

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ISL6446

Dual (180°Out-of-Phase) PWM and Linear Controller

Renesas Electronics 

ISL6446

Electrical Specifications Operating conditions unless otherwise noted: VIN = 12V, or VCC = 5V ±10%, TA = -40°C to +85°C. Typical values

are at +25°C. Boldface limits apply across the operating temperature range, -40°C to +85°C (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 9)

TYP

MAX

(Note 9)

UNIT

LCFB Input Leakage Current

Error Amplifier Transconductance

PGOOD

ILCFB

gm

(Note 7)

VLCFB = 0.6V, ILCDR = 21mA (Note 7)

80

nA

2

A/V

Power-good Lower Threshold

PG_lowx LCFB = VCC, LDO disabled

PGOOD for Ch1 and Ch2 only

88

93

97

%

Power-good Higher Threshold

PG_hix LCFB = VCC, LDO disabled

PGOOD for Ch1 and Ch2 only

105

110

115

%

Power-good Lower Threshold

PG_low3 LDO enabled, PGOOD for LDO;

Ch1 and Ch2 disabled; (Note 7)

72

%

PGOOD Delay

PGOOD Leakage Current

PGOOD Voltage Low

THERMAL

tPGOOD

IPGOOD

VPG_low

fSW = 1.4MHz (Note 7)

VPULLUP = 5.5V

IPGOOD = -4mA

46

ms

5

µA

0.5

V

Shutdown Temperature

(Note 8)

150

°C

Shutdown Hysteresis

(Note 8)

20

°C

NOTES:

7. Limits established by characterization.

8. Design guideline only; not production tested.

9. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization

and are not production tested.

FN7944 Rev 2.00

October 12, 2015

Page 8 of 19

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