MT6305B Просмотр технического описания (PDF) - MediaTek Inc

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Компоненты Описание

производитель

MT6305B

GSM Power Management System

MediaTek Inc 

Confidential Information

MT6305B

Electrical Characteristics (continued)

(Vbat=3V -5.5V, CVa=4.7µF, CVrtc=0.22µF, CVcore=CVm=CVref=CVtcxo=CVsim=CVio=2.2µF, minimum

loads applied on all outputs, unless otherwise noted. Typical values are at TA=+25°C.)

PARAMETER

Reset Output High Voltage

Reset Output Low Voltage

CONDITION

MIN

Vio-0.5

---

Reset Output Current

---

Reset on Delay Time per unit Cap.

1

LED/Alerter/Vibrator Driver

Sink Current of LED Driver

Von<0.5V

150

Sink Current of Alerter Driver

Von<0.5V

300

Sink Current of Vibrator Driver

Von<0.5V

250

Battery Charger

Charge Output Voltage (Li- ion Battery)

BATUSE=0

4.15

Charge Output Voltage (NiMH Battery)

BATUSE=1

5

Chr_Det On Threshold

(Chrin- Vbat)/Vbat, Chrin>4V

---

Chr_Det Off Threshold

(Chrin- Vbat)/Vbat, Chrin>4V

Pre-charge Current

Vbat<1.5V

Pre-charging Current Threshold Voltage

Vbat>2V;UVLO Active, R1=0.2Ω

Constant Charge Current Threshold Voltage Vbat>3.2V; R1=0.2Ω

Gatedrv output high voltage

I=-0.1mA

---

5

5

135

Vchrin-1.0V

Gatedrv output low voltage

I=0.1mA

---

GSM Interface

Vih(SIMCLK,SIMRST)

Vil (SIMCLK,SIMRST)

Vilsimio

Vihsimio , Vohsimio

Iilsimio

Volsimio

Vol≦0.4V, Iol=1mA

Vol≦0.4V, Iol=0mA

Iih,Ioh=± 20µA

Vil=0V

Vil=0.4V

Vio-0.6

---

---

---

Vio-0.6

---

---

SIMIO Pull-up Resistance to Vio

16

Interface to 3V SIM card

Volrst

I=20µA

---

Vohrst

Volclk

I=-200µA

I=20µA

0.9Vsim

---

Vohclk

Vil

Vihsio , Vohsio

Iil

Vol

I=-200µA

I=± 20µA

Vil=0V

Iol=1mA , SIMIO≦0.23V

0.9Vsim

---

Vsim-0.4

---

---

Interface to 1.8V SIM card

Volrst

Vohrst

Volclk

Vohclk

I=20µA

I=-200µA

I=20µA

I=-200µA

---

0.9Vsim

---

0.9Vsim

Vil

Vihsio , Vohsio

Iil

I=± 20µA

Vil=0V

---

Vsim-0.4

---

MediaTek Confidential

Revision 1.1–Apr. 22, 2005

© 2002 MediaTek Inc.

The information contained in this document can be modified without notice

TYP

---

---

1

2

MAX

---

0.2

---

3

UNIT

V

V

mA

ms/nF

---

---

mA

---

---

mA

---

---

mA

4.2

4.25

V

5.1

5.2

V

3.0

---

%

3.0

---

%

---

15

mA

10

15

mV

160

185

mV

---

---

V

---

0.9

V

---

---

V

---

0.6

V

---

0.23

V

---

0.335

V

---

---

V

---

-0.9

mA

---

0.42

V

20

24

KΩ

---

0.4

V

---

---

V

---

0.4

V

---

---

V

---

0.4

V

---

---

V

---

-1

mA

---

0.4

V

--- 0.2Vsim V

---

---

V

--- 0.2Vsim V

---

---

V

---

0.4

V

---

---

V

---

-1

mA

Page 11 of 33

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