HM4033 データシートの表示（PDF） - Unspecified

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HM4033

PFM Step-up Battery Charger Controller IC

Unspecified 

HM4033

ELECTRICAL CHARACTERICS

(VIN = 12V，TA＝－40°C to +85°C，Typical values are at TA＝+25°C, unless otherwise noted)

Parameters

Symbol

Input Voltage Range

VIN

Switching Frequency

fSW

Operating Current

IVIN

Inductor Current Sense Comparator

Sense Threshold High

VCSHI

Sense Threshold Low

Propagation Delay to

Output High

Propagation Delay to

Output Low

CSN Input Current

FB Pin

FB Charge Termination

Threshold

FB Recharge Threshold

FB Current

DRV Pin

Source Current

Sink Current

Output Voltage High

Output Voltage Low

VCC Pin

Regulation Voltage

Load Regulation

Line Regulation

PSRR

Start Time

VCSLO

tDPDH

tDPDL

ICSN

Vterm

Vrech

IFB

VOH

VOL

VCC

PSRR

tSTART

Test Conditions

VFB＝1.25V，No Switching

(VIN － VCSN) rises from 0V,

until VDRV ＜0.5V

(VIN － VCSN) falls from 0.2V

until VDRV＞ (VCC－0.5V)

(VIN － VCSN) from 0.2V to

0.07V

(VIN－VCSN) from 0V to 0.2V

FB voltage rises

FB voltage falls

VCSN＝VIN, VDRV＝0.5×VCC

VCSN＝VIN－0.22V，

VDRV＝0.5×VCC

IDRV＝5mA

IDRV＝－10mA

IVCC＝0.1mA to 5mA，

VIN＝5.5V to 30V

IVCC＝0.1mA to 5mA，

VIN＝6Vto 28V，IVCC＝3mA

IVCC＝3mA，fIN＝10kHz

VCC＝0 to 4.5V

Min

Typ

4

395

515

120

150

96

120

82

82

1.19

1.13

－100

1.205

1.155

0.5

1

VCC－0.5

4.5

5

6

－35

350

Max

28

1

635

180

144

1

1.22

1.18

＋100

0.5

5.5

Unit

V

MHz

uA

mV

mV

ns

ns

uA

V

V

nA

A

A

V

V

V

ohm

mV

dB

us

Detailed Description

The HM4033 is a step up battery charger controller IC which operates from an input voltage of 4V to 28V. The

HM4033includes an on-chip reference voltage, +5V voltage regulator, inductor current sensing, battery voltage

monitoring and N-channel MOSFET driving blocks, etc, which makes the HM4033 easy to be used with few

external components.

The HM4033 enters charge mode on power up, the external N-channel MOSFET is turned on, inductor current

rises. When the inductor current rises to the upper limit, the N-channel MOSFET is turned off, and inductor

current begins to fall, the energy stored in inductor is transferred to the battery. When inductor current falls to the

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