SC804A datasheet(4/21 Pages) SEMTECH

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SC804A

PRELIMINARY

POWER MANAGEMENT

DRAFT

Electrical Characteristics (Cont.)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

NTC Thresholds

NTCDIS

SC804A Disabled

0.3

0.6

0.8

NTCH

NTC Hot V

Applies to falling threshold

4.3V ≤ VCC ≤ 6.5V

at VCC = 5V

1.45

1.50

1.55

% of

VCC

NTCC

NTC Cold V

TH, VCTO = 0V

Applies to rising threshold

4.3V ≤ VCC ≤ 6.5V

at VCC = 5V

73.4

3.67

74.4

3.72

75.4

3.77

% of

VCC

NTCHYS

NTC Hot & Cold VT

NTCx

hysteresis

(VT

NTCx Rising - VTNTCx Falling)

Applies to internal NTC thresholds

CTO

CTO Voltage (Adjustable NTC

Cold Rising Threshold) Setting

Range(2), -40°C ≤ T

A ≤ 25°C (NTC

Cold Rising Threshold is VT

NTCC

when CTO tied to GND)

% of

VCC

Threshold Error(3),

-40°C ≤ T

A ≤ 25°C

-70

CTOHYS

Internal hysteresis on CTO

CTO Rising - VCTO Falling)

Applies to externally set

NTC cold threshold

Adjust Mode BSEN Voltage

BSEN-ADJ

3.5V ≤ VOUT ≤ VCC - 150mV

0°C ≤ T

J ≤ 125°C

3.189

3.217

3.253

Adjust Mode Enable Voltage,

VOUT-BSEN

ADJEN

3.5V ≤ VOUT ≤ VCC - 150mV

400

Adjust Mode Disable

Voltage, VOUT-BSEN

ADJDIS

3.5V ≤ VOUT ≤ VCC - 150mV

150

External RTIM

Regulation Voltage

RTIM

RTIM = 37.4kΩ

1.450

1.557

1.660

Timer Disable

Threshold

TIMER

RTIM ≤ VTTIMER

disables internal timer

0.65

0.85

Internal Timer Select

INTTS

VCC-V

RTIM > VTINTTS

selects internal timer

1.1

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