CP3800 Datasheet, PDF (4/19 Pages) Ceramate Technical – Switching Regulator Power Controller

CP3800
Switching Regulator Power Controller
Electrical Characteristics
Parameter
Circuit to prevent
malfunction at low
input voltage
(U.V.L.O.)
Reset voltage
Threshold voltage
Symbol
V_R
V_TH
Condition
--
(V_CC=+2V, Ta=+25⁰C)
Values
Unit
Min. Typ. Max.
-- -- 0.9 V
1.1 1.3 1.5 V
Soft start
Short circuit
detection (S.C.P.)
Sawtooth wave
oscillator (OSC)
Error amplifier
Idle period
adjustment section
Charging current
Voltage at soft start
completion
Charging current
Threshold voltage
Oscillation frequency
Frequency input
Stability
Frequency variation
with temperature
Input threshold
Voltage
V_T input stability
V_T variation with
Temperature
Input bias current
Voltage gain
Frequency bandwidth
Maximum output
voltage range
Output source current
Output sink current
Maximum duty cycle
Output section
Output voltage
Output source current
Output sink current
Pull down resistance
I_CS V_SCP=0V
V_ts
--
-1.5 -1.0 -0.7 μA
0.7 0.8 0.9 V
I_CPC V_SCP=0V
-1.5 -1.0 -0.7 μA
V_tPC
--
0.7 0.8 0.9 V
f_OSC R_T=3.3kΩ, C_T=270pF 400 500 600 kHz
f_dV V_CC=2V to 12V
-- 2 10 %
f_dT Ta =-30⁰C to 85⁰C
-- 5 -- %
V_T V_FB = 450mV
480 500 520 mV
V_TdV V_CC=2V to 12V
V_TdT Ta = -30⁰C to 85⁰C
-- 5 20 mV
-- 1 -- %
I_B
A_V
BW
V_OM+
V_{OM_}
I_OM+
I_{OM_}
T_DUTY
V_OH1
V_OH2
V_OL1
V_OL2
I_O+
I_O-
R_O
V_IN = 0V
--
A_V = 0 dB
--
-1.0 -0.2
70 100
-- 6
0.78 0.87
-- 0.05
V_FB = 450mV
-- -40
24 40
R_T=3.3kΩ, C_T=270pF 75 --
f_OSC = 500KHz
R_B= 390Ω, I_O= -15 mA 1.0 1.2
R_B= 750Ω, V_CC = 1.8V 0.8 1.0
I_O= -10 mA
R_B= 390Ω, I_O= -15 mA -- 0.1
R_B= 750Ω, V_CC = 1.8V -- 0.1
I_O= -10 mA
R_B= 390Ω, V_O = 0.9V -- -30
R_B= 390Ω, V_O = 0.3V 30 60
--
20 30
1.0 μA
145 V/V
-- MHz
-- V
0.2 V
-24 μA
-- μA
85 %
-- V
-- V
0.2 V
0.2 V
-20 mA
-- mA
40 ｋΩ
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:[phone]
Fax:[phone]
Page 4 of 19
Email: [e-mail]
Http: www.ceramate.com.tw
Rev 1.0 Mar.31,2003